105-610: [REDACTED] The Tevno Vasilashko Lake. The Vasilashki Lakes ( Bulgarian : Василашки езера ) are situated in Pirin , Bulgaria in a large cirque between the Todorka and Vasilashki Chukar peaks. The cirque is opened to the east, where it faces the Demyanitsa river in which the water of the lakes pour. This cirque also includes the two lakes Todorini Ochi (Todora's Eyes), whose waters goes to one of
210-543: A first-class entity , rather than the specific place where the object is located at a certain time. It implements the Uniform Resource Identifier ( Uniform Resource Name ) concept and adds to it a data model and social infrastructure. A DOI name also differs from standard identifier registries such as the ISBN , ISRC , etc. The purpose of an identifier registry is to manage a given collection of identifiers, whereas
315-448: A DOI name is a handle, and so has a set of values assigned to it and may be thought of as a record that consists of a group of fields. Each handle value must have a data type specified in its <type> field, which defines the syntax and semantics of its data. While a DOI persistently and uniquely identifies the object to which it is assigned, DOI resolution may not be persistent, due to technical and administrative issues. To resolve
420-537: A DOI name, it may be input to a DOI resolver, such as doi.org . Another approach, which avoids typing or copying and pasting into a resolver is to include the DOI in a document as a URL which uses the resolver as an HTTP proxy, such as https://doi.org/ (preferred) or http://dx.doi.org/ , both of which support HTTPS. For example, the DOI 10.1000/182 can be included in a reference or hyperlink as https://doi.org/10.1000/182 . This approach allows users to click on
525-532: A consonant and are feminine, as well as nouns that end in –а/–я (most of which are feminine, too) use –та. Nouns that end in –е/–о use –то. The plural definite article is –те for all nouns except for those whose plural form ends in –а/–я; these get –та instead. When postfixed to adjectives the definite articles are –ят/–я for masculine gender (again, with the longer form being reserved for grammatical subjects), –та for feminine gender, –то for neuter gender, and –те for plural. Both groups agree in gender and number with
630-515: A dialect continuum, and there is no well-defined boundary where one language ends and the other begins. Within the limits of the Republic of North Macedonia a strong separate Macedonian identity has emerged since the Second World War, even though there still are a small number of citizens who identify their language as Bulgarian. Beyond the borders of North Macedonia, the situation is more fluid, and
735-401: A managed registry (providing both social and technical infrastructure). It does not assume any specific business model for the provision of identifiers or services and enables other existing services to link to it in defined ways. Several approaches for making identifiers persistent have been proposed. The comparison of persistent identifier approaches is difficult because they are not all doing
840-502: A middle ground between the macrodialects. It allows palatalizaton only before central and back vowels and only partial reduction of / a / and / ɔ / . Reduction of / ɛ / , consonant palatalisation before front vowels and depalatalization of palatalized consonants before central and back vowels is strongly discouraged and labelled as provincial. Bulgarian has six vowel phonemes, but at least eight distinct phones can be distinguished when reduced allophones are taken into consideration. There
945-573: A more stable link than directly using its URL. But if its URL changes, the publisher must update the metadata for the DOI to maintain the link to the URL. It is the publisher's responsibility to update the DOI database. If they fail to do so, the DOI resolves to a dead link , leaving the DOI useless. The developer and administrator of the DOI system is the International DOI Foundation (IDF), which introduced it in 2000. Organizations that meet
1050-446: A much smaller group of irregular nouns with zero ending which define tangible objects or concepts ( кръв /krɤf/ 'blood', кост /kɔst/ 'bone', вечер /ˈvɛtʃɛr/ 'evening', нощ /nɔʃt/ 'night'). There are also some commonly used words that end in a vowel and yet are masculine: баща 'father', дядо 'grandfather', чичо / вуйчо 'uncle', and others. The plural forms of the nouns do not express their gender as clearly as
1155-544: A non-profit organization created in 1997, is the governance body of the DOI system. It safeguards all intellectual property rights relating to the DOI system, manages common operational features, and supports the development and promotion of the DOI system. The IDF ensures that any improvements made to the DOI system (including creation, maintenance, registration, resolution and policymaking of DOI names) are available to any DOI registrant. It also prevents third parties from imposing additional licensing requirements beyond those of
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#17328845953571260-484: A number of phraseological units and sayings. The major exception are vocative forms, which are still in use for masculine (with the endings -е, -о and -ю) and feminine nouns (-[ь/й]о and -е) in the singular. In modern Bulgarian, definiteness is expressed by a definite article which is postfixed to the noun, much like in the Scandinavian languages or Romanian (indefinite: човек , 'person'; definite: човек ът , "
1365-524: A special count form in –а/–я , which stems from the Proto-Slavonic dual : два/три стола ('two/three chairs') versus тези столове ('these chairs'); cf. feminine две/три/тези книги ('two/three/these books') and neuter две/три/тези легла ('two/three/these beds'). However, a recently developed language norm requires that count forms should only be used with masculine nouns that do not denote persons. Thus, двама/трима ученици ('two/three students')
1470-733: A tiny islet in the middle. The water pours out in the Upper Vasilashko Lake by means of underground stream, which makes it impossible for the fish to reach it. The Fish Vasilashko Lake (Bulgarian: Рибното Василашко езеро), sometimes referred as the Big Vasilashko Lake, is second in size (35.9 decares) and is situated slightly below the Upper Lake at 2,126 m. It is 325 m long and 177 m wide with maximum depth of 2.5 m, which explains its small volume-only 41,000 m³. A small picturesque peninsular juts out in its southern part. The lake gathers
1575-419: A transaction, etc. The names can refer to objects at varying levels of detail: thus DOI names can identify a journal, an individual issue of a journal, an individual article in the journal, or a single table in that article. The choice of level of detail is left to the assigner, but in the DOI system it must be declared as part of the metadata that is associated with a DOI name, using a data dictionary based on
1680-621: Is " Ye lena Yankovich" ( Йелена Янкович ). Until the period immediately following the Second World War , all Bulgarian and the majority of foreign linguists referred to the South Slavic dialect continuum spanning the area of modern Bulgaria, North Macedonia and parts of Northern Greece as a group of Bulgarian dialects. In contrast, Serbian sources tended to label them "south Serbian" dialects. Some local naming conventions included bolgárski , bugárski and so forth. The codifiers of
1785-516: Is 13.2 decares; the depth is 7.7 m and the volume is 44,600 m³. It is almost perfectly round with size of 124x151 m. The two lakes are also famous as the Todora's Eyes to remember the maiden Todorka who bewailed her beloved Vasil and her tears created the lakes. The Lower Todorino Lake (Bulgarian: Долно Тодорино езеро) is located at 2,510 m which makes it one of the ten highest lakes in Pirin. Its surface area
1890-931: Is 6.7 decares; the depth 3.7 m and the volume is 12,000 m³. It is also almost round: 110x82 m. References [ edit ] ^ "National Parks of Bulgaria" . WorldAtlas . 2019-06-18 . Retrieved 2022-07-05 . ^ Velichkova, Rositsa; Petrova, Tsvetelina; Simova, Iskra; Bardarov, Georgi; Markov, Detelin; Uzunova, Milka (2020), Negm, Abdelazim M.; Romanescu, Gheorghe; Zelenakova, Martina (eds.), "Water Resource Management in Bulgaria" , Water Resources Management in Balkan Countries , Cham: Springer International Publishing, pp. 295–326, doi : 10.1007/978-3-030-22468-4_12 , ISBN 978-3-030-22468-4 , retrieved 2022-07-05 Retrieved from " https://en.wikipedia.org/w/index.php?title=Vasilashki_Lakes&oldid=1254762812 " Category : Lakes of
1995-450: Is a type of Handle System handle, which takes the form of a character string divided into two parts, a prefix and a suffix, separated by a slash. The prefix identifies the registrant of the identifier and the suffix is chosen by the registrant and identifies the specific object associated with that DOI. Most legal Unicode characters are allowed in these strings, which are interpreted in a case-insensitive manner. The prefix usually takes
2100-621: Is also a significant Bulgarian diaspora abroad. One of the main historically established communities are the Bessarabian Bulgarians , whose settlement in the Bessarabia region of nowadays Moldova and Ukraine dates mostly to the early 19th century. There were 134,000 Bulgarian speakers in Ukraine at the 2001 census, 41,800 in Moldova as of the 2014 census (of which 15,300 were habitual users of
2205-488: Is based on a general consensus reached by all major Bulgarian linguists in the 1930s and 1940s. In turn, the 39-consonant model was launched in the beginning of the 1950s under the influence of the ideas of Russian linguist Nikolai Trubetzkoy . Despite frequent objections, the support of the Bulgarian Academy of Sciences has ensured Trubetzkoy's model virtual monopoly in state-issued phonologies and grammars since
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#17328845953572310-433: Is common in all modern Slavic languages (e.g. Czech medv ě d /ˈmɛdvjɛt/ "bear", Polish p ię ć /pʲɛ̃tɕ/ "five", Serbo-Croatian je len /jělen/ "deer", Ukrainian нема є /nemájɛ/ "there is not ...", Macedonian пишува ње /piʃuvaɲʲɛ/ "writing", etc.), as well as some Western Bulgarian dialectal forms – e.g. ора̀н’е /oˈraɲʲɛ/ (standard Bulgarian: оране /oˈranɛ/ , "ploughing"), however it
2415-405: Is currently no consensus on the number of Bulgarian consonants, with one school of thought advocating for the existence of only 22 consonant phonemes and another one claiming that there are not fewer than 39 consonant phonemes. The main bone of contention is how to treat palatalized consonants : as separate phonemes or as allophones of their respective plain counterparts. The 22-consonant model
2520-800: Is mainly split into two broad dialect areas, based on the different reflexes of the Proto-Slavic yat vowel (Ѣ). This split, which occurred at some point during the Middle Ages, led to the development of Bulgaria's: The literary language norm, which is generally based on the Eastern dialects, also has the Eastern alternating reflex of yat . However, it has not incorporated the general Eastern umlaut of all synchronic or even historic "ya" sounds into "e" before front vowels – e.g. поляна ( polyana ) vs. полени ( poleni ) "meadow – meadows" or even жаба ( zhaba ) vs. жеби ( zhebi ) "frog – frogs", even though it co-occurs with
2625-596: Is maintained by the International DOI Foundation. The IDF is recognized as one of the federated registrars for the Handle System by the DONA Foundation (of which the IDF is a board member), and is responsible for assigning Handle System prefixes under the top-level 10 prefix. Registration agencies generally charge a fee to assign a new DOI name; parts of these fees are used to support the IDF. The DOI system overall, through
2730-471: Is not represented in standard Bulgarian speech or writing. Even where /jɛ/ occurs in other Slavic words, in Standard Bulgarian it is usually transcribed and pronounced as pure /ɛ/ – e.g. Boris Yeltsin is "Eltsin" ( Борис Елцин ), Yekaterinburg is "Ekaterinburg" ( Екатеринбург ) and Sarajevo is "Saraevo" ( Сараево ), although – because of the stress and the beginning of the word – Jelena Janković
2835-456: Is not very deep: only 3.1 m and the volume is 29,000 m³. It is also the place where the water from the Todora's Eyes and Tevnoto Lake pour in. The Rainbow-shaped Vasilashko Lake (Bulgarian: Дъговидното Василшко езеро) is situated in a separate small cirque under the Tipits Peak at 2,215 m. With depth of 10.4 m, it is second in the group and ninth in Pirin . It is not very large: its surface
2940-478: Is one more to describe a general category of unwitnessed events – the inferential (преизказно /prɛˈiskɐzno/ ) mood. However, most contemporary Bulgarian linguists usually exclude the subjunctive mood and the inferential mood from the list of Bulgarian moods (thus placing the number of Bulgarian moods at a total of 3: indicative, imperative and conditional) and do not consider them to be moods but view them as verbial morphosyntactic constructs or separate gramemes of
3045-478: Is only 10.9 decares (165x106 m). The lake has a shape of an irregular pentagonal, whose eastern side is curved as a rainbow. Its water pour into the Fish Lake under the ground. The Upper Todorino Lake (Bulgarian: Горно Тодорино езеро) is the larger of the two lakes of the same name. Situated at 2,536 m it is among of the highest in Pirin (fifth). This is why it is surrounded by morains not with bush. The surface area
3150-401: Is perceived as more correct than двама/трима ученика , while the distinction is retained in cases such as два/три молива ('two/three pencils') versus тези моливи ('these pencils'). Cases exist only in the personal and some other pronouns (as they do in many other modern Indo-European languages ), with nominative , accusative , dative and vocative forms. Vestiges are present in
3255-464: Is shown with a DOI name that leads to an Excel file of data underlying the tables and graphs. Further development of such services is planned. Other registries include Crossref and the multilingual European DOI Registration Agency (mEDRA) . Since 2015, RFCs can be referenced as doi:10.17487/rfc ... . The IDF designed the DOI system to provide a form of persistent identification , in which each DOI name permanently and unambiguously identifies
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3360-418: Is that mutable parts of speech vary grammatically, whereas the immutable ones do not change, regardless of their use. The five classes of mutables are: nouns , adjectives , numerals , pronouns and verbs . Syntactically, the first four of these form the group of the noun or the nominal group. The immutables are: adverbs , prepositions , conjunctions , particles and interjections . Verbs and adverbs form
3465-629: Is the Service of Saint Cyril from Skopje (Скопски миней), a 13th-century Middle Bulgarian manuscript from northern Macedonia according to which St. Cyril preached with "Bulgarian" books among the Moravian Slavs. The first mention of the language as the "Bulgarian language" instead of the "Slavonic language" comes in the work of the Greek clergy of the Archbishopric of Ohrid in the 11th century, for example in
3570-634: Is the language of the Bulgarians . Along with the closely related Macedonian language (collectively forming the East South Slavic languages ), it is a member of the Balkan sprachbund and South Slavic dialect continuum of the Indo-European language family . The two languages have several characteristics that set them apart from all other Slavic languages , including the elimination of case declension ,
3675-555: Is to use one of a number of add-ons and plug-ins for browsers , thereby avoiding the conversion of the DOIs to URLs, which depend on domain names and may be subject to change, while still allowing the DOI to be treated as a normal hyperlink. A disadvantage of this approach for publishers is that, at least at present, most users will be encountering the DOIs in a browser, mail reader , or other software which does not have one of these plug-ins installed. The International DOI Foundation ( IDF ),
3780-399: Is used, and the choice between them is partly determined by their ending in singular and partly influenced by gender; in addition, irregular declension and alternative plural forms are common. Words ending in –а/–я (which are usually feminine) generally have the plural ending –и , upon dropping of the singular ending. Of nouns ending in a consonant, the feminine ones also use –и , whereas
3885-537: The Balkan language area (mostly grammatically) and later also by Turkish , which was the official language of the Ottoman Empire , in the form of the Ottoman Turkish language , mostly lexically. The damaskin texts mark the transition from Middle Bulgarian to New Bulgarian, which was standardized in the 19th century. As a national revival occurred toward the end of the period of Ottoman rule (mostly during
3990-679: The Bulgarian Empire introduced the Glagolitic alphabet which was devised by the Saints Cyril and Methodius in the 850s. The Glagolitic alphabet was gradually superseded in later centuries by the Cyrillic script , developed around the Preslav Literary School , Bulgaria in the late 9th century. Several Cyrillic alphabets with 28 to 44 letters were used in the beginning and the middle of
4095-558: The Greek hagiography of Clement of Ohrid by Theophylact of Ohrid (late 11th century). During the Middle Bulgarian period, the language underwent dramatic changes, losing the Slavonic case system , but preserving the rich verb system (while the development was exactly the opposite in other Slavic languages) and developing a definite article. It was influenced by its non-Slavic neighbors in
4200-506: The Handle System ; they also fit within the URI system ( Uniform Resource Identifier ). They are widely used to identify academic, professional, and government information, such as journal articles, research reports, data sets, and official publications . A DOI aims to resolve to its target, the information object to which the DOI refers. This is achieved by binding the DOI to metadata about
4305-779: The accession of Bulgaria to the European Union on 1 January 2007, Cyrillic became the third official script of the European Union , following the Latin and Greek scripts . Bulgarian possesses a phonology similar to that of the rest of the South Slavic languages, notably lacking Serbo-Croatian's phonemic vowel length and tones and alveo-palatal affricates. There is a general dichotomy between Eastern and Western dialects, with Eastern ones featuring consonant palatalization before front vowels ( / ɛ / and / i / ) and substantial vowel reduction of
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4410-491: The indecs Content Model . The official DOI Handbook explicitly states that DOIs should be displayed on screens and in print in the format doi:10.1000/182 . Contrary to the DOI Handbook , Crossref , a major DOI registration agency, recommends displaying a URL (for example, https://doi.org/10.1000/182 ) instead of the officially specified format. This URL is persistent (there is a contract that ensures persistence in
4515-445: The person") or to the first nominal constituent of definite noun phrases (indefinite: добър човек , 'a good person'; definite: добри ят човек , " the good person"). There are four singular definite articles. Again, the choice between them is largely determined by the noun's ending in the singular. Nouns that end in a consonant and are masculine use –ът/–ят, when they are grammatical subjects , and –а/–я elsewhere. Nouns that end in
4620-623: The " Big Excursion " of 1989. The language is also represented among the diaspora in Western Europe and North America, which has been steadily growing since the 1990s. Countries with significant numbers of speakers include Germany , Spain , Italy , the United Kingdom (38,500 speakers in England and Wales as of 2011), France , the United States , and Canada (19,100 in 2011). The language
4725-601: The 1960s. However, its reception abroad has been lukewarm, with a number of authors either calling the model into question or outright rejecting it. Thus, the Handbook of the International Phonetic Association only lists 22 consonants in Bulgarian's consonant inventory . The parts of speech in Bulgarian are divided in ten types, which are categorized in two broad classes: mutable and immutable. The difference
4830-460: The 19th century during the efforts on the codification of Modern Bulgarian until an alphabet with 32 letters, proposed by Marin Drinov , gained prominence in the 1870s. The alphabet of Marin Drinov was used until the orthographic reform of 1945, when the letters yat (uppercase Ѣ, lowercase ѣ) and yus (uppercase Ѫ, lowercase ѫ) were removed from its alphabet, reducing the number of letters to 30. With
4935-461: The 19th century), a modern Bulgarian literary language gradually emerged that drew heavily on Church Slavonic/Old Bulgarian (and to some extent on literary Russian , which had preserved many lexical items from Church Slavonic) and later reduced the number of Turkish and other Balkan loans. Today one difference between Bulgarian dialects in the country and literary spoken Bulgarian is the significant presence of Old Bulgarian words and even word forms in
5040-556: The Blue Lake is one of the largest and deepest lakes in the mountain, and is first by these indicators in the group. It is situated at an altitude of 2,362 m; its size is 63.9 decares (388x215 m) which makes it sixth in Pirin; and is 29 m deep which makes it second after the Popovo Lake with only half metre more. The water volume of 510,000 m³ is also considerable and is third in Pirin. The lake has exceptional beauty, saturated blue waters and
5145-479: The DOI System. It requires an additional layer of administration for defining DOI as a URN namespace (the string urn:doi:10.1000/1 rather than the simpler doi:10.1000/1 ) and an additional step of unnecessary redirection to access the resolution service, already achieved through either http proxy or native resolution. If RDS mechanisms supporting URN specifications become widely available, DOI will be registered as
5250-413: The DOI as a normal hyperlink . Indeed, as previously mentioned, this is how Crossref recommends that DOIs always be represented (preferring HTTPS over HTTP), so that if they are cut-and-pasted into other documents, emails, etc., they will be actionable. Other DOI resolvers and HTTP Proxies include the Handle System and PANGAEA . At the beginning of the year 2016, a new class of alternative DOI resolvers
5355-409: The DOI system associates metadata with objects. A small kernel of common metadata is shared by all DOI names and can be optionally extended with other relevant data, which may be public or restricted. Registrants may update the metadata for their DOI names at any time, such as when publication information changes or when an object moves to a different URL. The International DOI Foundation (IDF) oversees
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#17328845953575460-436: The DOI system have deliberately not registered a DOI namespace for URNs , stating that: URN architecture assumes a DNS-based Resolution Discovery Service (RDS) to find the service appropriate to the given URN scheme. However no such widely deployed RDS schemes currently exist.... DOI is not registered as a URN namespace, despite fulfilling all the functional requirements, since URN registration appears to offer no advantage to
5565-459: The DOI system. DOI name-resolution may be used with OpenURL to select the most appropriate among multiple locations for a given object, according to the location of the user making the request. However, despite this ability, the DOI system has drawn criticism from librarians for directing users to non-free copies of documents, that would have been available for no additional fee from alternative locations. The indecs Content Model as used within
5670-495: The IDF on users of the DOI system. The IDF is controlled by a Board elected by the members of the Foundation, with an appointed Managing Agent who is responsible for co-ordinating and planning its activities. Membership is open to all organizations with an interest in electronic publishing and related enabling technologies. The IDF holds annual open meetings on the topics of DOI and related issues. Registration agencies, appointed by
5775-665: The IDF, operates on a not-for-profit cost recovery basis. The DOI system is an international standard developed by the International Organization for Standardization in its technical committee on identification and description, TC46/SC9. The Draft International Standard ISO/DIS 26324, Information and documentation – Digital Object Identifier System met the ISO requirements for approval. The relevant ISO Working Group later submitted an edited version to ISO for distribution as an FDIS (Final Draft International Standard) ballot, which
5880-472: The IDF, provide services to DOI registrants: they allocate DOI prefixes, register DOI names, and provide the necessary infrastructure to allow registrants to declare and maintain metadata and state data. Registration agencies are also expected to actively promote the widespread adoption of the DOI system, to cooperate with the IDF in the development of the DOI system as a whole, and to provide services on behalf of their specific user community. A list of current RAs
5985-597: The Pirin Hidden category: Articles containing Bulgarian-language text Bulgarian language Rup Moesian Bulgarian ( / b ʌ l ˈ ɡ ɛər i ə n / , / b ʊ l ˈ -/ bu(u)l- GAIR -ee-ən ; български език , bŭlgarski ezik , pronounced [ˈbɤɫɡɐrski] ) is an Eastern South Slavic language spoken in Southeast Europe , primarily in Bulgaria . It
6090-785: The Vasilaski lakes. The cirque is amphitheatric and in fact consists of several smaller cirques situated in a fan-shape way above the main one, in which the two largest lakes are located. The lakes are 10 including the two Todorini, with a total surface area of 160 decares. Their name derives from the legent for Vasil, the beloved one of Todorka, who plunged into the Fish Vasilashko lake when she broke his heart. The most important lakes are: [REDACTED] The Upper Vasilashko Lake. [REDACTED] The Lower Vasilashko Lake. [REDACTED] The Upper Vasilashko Lake. The Tevno Vasilashko Lake (Bulgarian: Тевното Василашко езеро), called also
6195-459: The characters 1000 in the prefix identify the registrant; in this case the registrant is the International DOI Foundation itself. 182 is the suffix, or item ID, identifying a single object (in this case, the latest version of the DOI Handbook ). DOI names can identify creative works (such as texts, images, audio or video items, and software) in both electronic and physical forms, performances , and abstract works such as licenses, parties to
6300-412: The completion of the action of the verb and form past perfective (aorist) forms; imperfective ones are neutral with regard to it and form past imperfective forms. Most Bulgarian verbs can be grouped in perfective-imperfective pairs (imperfective/perfective: идвам/дойда "come", пристигам/пристигна "arrive"). Perfective verbs can be usually formed from imperfective ones by suffixation or prefixation, but
6405-467: The contractual obligations of the DOI system and are willing to pay to become a member of the system can assign DOIs. The DOI system is implemented through a federation of registration agencies coordinated by the IDF. By late April 2011 more than 50 million DOI names had been assigned by some 4,000 organizations, and by April 2013 this number had grown to 85 million DOI names assigned through 9,500 organizations. Fake registries have even appeared. A DOI
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#17328845953576510-401: The development of a suffixed definite article , and the lack of a verb infinitive . They retain and have further developed the Proto-Slavic verb system (albeit analytically). One such major development is the innovation of evidential verb forms to encode for the source of information: witnessed, inferred, or reported. It is the official language of Bulgaria , and since 2007 has been among
6615-403: The doi.org domain, ) so it is a PURL —providing the location of an name resolver which will redirect HTTP requests to the correct online location of the linked item. The Crossref recommendation is primarily based on the assumption that the DOI is being displayed without being hyperlinked to its appropriate URL—the argument being that without the hyperlink it is not as easy to copy-and-paste
6720-549: The eastern dialects prevailed, and in 1899 the Bulgarian Ministry of Education officially codified a standard Bulgarian language based on the Drinov-Ivanchev orthography. Bulgarian is the official language of Bulgaria , where it is used in all spheres of public life. As of 2011, it is spoken as a first language by about 6 million people in the country, or about four out of every five Bulgarian citizens. There
6825-457: The form 10.NNNN , where NNNN is a number greater than or equal to 1000 , whose limit depends only on the total number of registrants. The prefix may be further subdivided with periods, like 10.NNNN.N . For example, in the DOI name 10.1000/182 , the prefix is 10.1000 and the suffix is 182 . The "10" part of the prefix distinguishes the handle as part of the DOI namespace, as opposed to some other Handle System namespace, and
6930-558: The full URL to actually bring up the page for the DOI, thus the entire URL should be displayed, allowing people viewing the page containing the DOI to copy-and-paste the URL, by hand, into a new window/tab in their browser in order to go to the appropriate page for the document the DOI represents. Major content of the DOI system currently includes: In the Organisation for Economic Co-operation and Development 's publication service OECD iLibrary , each table or graph in an OECD publication
7035-443: The functionality of a registry-controlled scheme and will usually lack accompanying metadata in a controlled scheme. The DOI system does not have this approach and should not be compared directly to such identifier schemes. Various applications using such enabling technologies with added features have been devised that meet some of the features offered by the DOI system for specific sectors (e.g., ARK ). A DOI name does not depend on
7140-539: The group of the verb or the verbal group. Nouns and adjectives have the categories grammatical gender , number , case (only vocative ) and definiteness in Bulgarian. Adjectives and adjectival pronouns agree with nouns in number and gender. Pronouns have gender and number and retain (as in nearly all Indo-European languages ) a more significant part of the case system. There are three grammatical genders in Bulgarian: masculine , feminine and neuter . The gender of
7245-484: The historical yat vowel or at least root vowels displaying the ya – e alternation. The letter was used in each occurrence of such a root, regardless of the actual pronunciation of the vowel: thus, both ml ya ko and ml e kar were spelled with (Ѣ). Among other things, this was seen as a way to "reconcile" the Western and the Eastern dialects and maintain language unity at a time when much of Bulgaria's Western dialect area
7350-537: The integration of these technologies and operation of the system through a technical and social infrastructure. The social infrastructure of a federation of independent registration agencies offering DOI services was modelled on existing successful federated deployments of identifiers such as GS1 and ISBN . A DOI name differs from commonly used Internet pointers to material, such as the Uniform Resource Locator (URL), in that it identifies an object itself as
7455-706: The language), and presumably a significant proportion of the 13,200 ethnic Bulgarians residing in neighbouring Transnistria in 2016. Another community abroad are the Banat Bulgarians , who migrated in the 17th century to the Banat region now split between Romania, Serbia and Hungary. They speak the Banat Bulgarian dialect , which has had its own written standard and a historically important literary tradition. There are Bulgarian speakers in neighbouring countries as well. The regional dialects of Bulgarian and Macedonian form
7560-571: The language, but its pronunciation is in many respects a compromise between East and West Bulgarian (see especially the phonetic sections below). Following the efforts of some figures of the National awakening of Bulgaria (most notably Neofit Rilski and Ivan Bogorov ), there had been many attempts to codify a standard Bulgarian language; however, there was much argument surrounding the choice of norms. Between 1835 and 1878 more than 25 proposals were put forward and "linguistic chaos" ensued. Eventually
7665-409: The latter. Russian loans are distinguished from Old Bulgarian ones on the basis of the presence of specifically Russian phonetic changes, as in оборот (turnover, rev), непонятен (incomprehensible), ядро (nucleus) and others. Many other loans from French, English and the classical languages have subsequently entered the language as well. Modern Bulgarian was based essentially on the Eastern dialects of
7770-473: The literary norm regarding the yat vowel, many people living in Western Bulgaria, including the capital Sofia , will fail to observe its rules. While the norm requires the realizations vidyal vs. videli (he has seen; they have seen), some natives of Western Bulgaria will preserve their local dialect pronunciation with "e" for all instances of "yat" (e.g. videl , videli ). Others, attempting to adhere to
7875-470: The low vowels / ɛ / , / ɔ / and / a / in unstressed position, sometimes leading to neutralisation between / ɛ / and / i / , / ɔ / and / u / , and / a / and / ɤ / . Both patterns have partial parallels in Russian, leading to partially similar sounds. In turn, the Western dialects generally do not have any allophonic palatalization and exhibit minor, if any, vowel reduction. Standard Bulgarian keeps
7980-399: The masculine ones usually have –и for polysyllables and –ове for monosyllables (however, exceptions are especially common in this group). Nouns ending in –о/–е (most of which are neuter) mostly use the suffixes –а, –я (both of which require the dropping of the singular endings) and –та . With cardinal numbers and related words such as няколко ('several'), masculine nouns use
8085-477: The most significant exception from the above are the relatively numerous nouns that end in a consonant and yet are feminine: these comprise, firstly, a large group of nouns with zero ending expressing quality, degree or an abstraction, including all nouns ending on –ост/–ест -{ost/est} ( мъдрост /ˈmɤdrost/ 'wisdom', низост /ˈnizost/ 'vileness', прелест /ˈprɛlɛst/ 'loveliness', болест /ˈbɔlɛst/ 'sickness', любов /ljuˈbɔf/ 'love'), and secondly,
8190-557: The newspaper Makedoniya : "Such an artificial assembly of written language is something impossible, unattainable and never heard of." After 1944 the People's Republic of Bulgaria and the Socialist Federal Republic of Yugoslavia began a policy of making Macedonia into the connecting link for the establishment of a new Balkan Federative Republic and stimulating here a development of distinct Macedonian consciousness. With
8295-447: The norm, will actually use the "ya" sound even in cases where the standard language has "e" (e.g. vidyal , vidyali ). The latter hypercorrection is called свръхякане ( svrah-yakane ≈"over- ya -ing"). Bulgarian is the only Slavic language whose literary standard does not naturally contain the iotated e /jɛ/ (or its variant, e after a palatalized consonant /ʲɛ/ , except in non-Slavic foreign-loaned words). This sound combination
8400-659: The noun can largely be inferred from its ending: nouns ending in a consonant ("zero ending") are generally masculine (for example, град /ɡrat/ 'city', син /sin/ 'son', мъж /mɤʃ/ 'man'; those ending in –а/–я (-a/-ya) ( жена /ʒɛˈna/ 'woman', дъщеря /dɐʃtɛrˈja/ 'daughter', улица /ˈulitsɐ/ 'street') are normally feminine; and nouns ending in –е, –о are almost always neuter ( дете /dɛˈtɛ/ 'child', езеро /ˈɛzɛro/ 'lake'), as are those rare words (usually loanwords) that end in –и, –у, and –ю ( цунами /tsuˈnami/ ' tsunami ', табу /tɐˈbu/ 'taboo', меню /mɛˈnju/ 'menu'). Perhaps
8505-994: The noun they are appended to. They may also take the definite article as explained above. Pronouns may vary in gender, number, and definiteness, and are the only parts of speech that have retained case inflections. Three cases are exhibited by some groups of pronouns – nominative, accusative and dative. The distinguishable types of pronouns include the following: personal, relative, reflexive, interrogative, negative, indefinitive, summative and possessive. A Bulgarian verb has many distinct forms, as it varies in person, number, voice, aspect, mood, tense and in some cases gender. Finite verbal forms are simple or compound and agree with subjects in person (first, second and third) and number (singular, plural). In addition to that, past compound forms using participles vary in gender (masculine, feminine, neuter) and voice (active and passive) as well as aspect (perfective/aorist and imperfective). Bulgarian verbs express lexical aspect : perfective verbs signify
8610-430: The object to which it is associated (although when the publisher of a journal changes, sometimes all the DOIs will be changed, with the old DOIs no longer working). It also associates metadata with objects, allowing it to provide users with relevant pieces of information about the objects and their relationships. Included as part of this metadata are network actions that allow DOI names to be resolved to web locations where
8715-462: The object's location and, in this way, is similar to a Uniform Resource Name (URN) or PURL but differs from an ordinary URL. URLs are often used as substitute identifiers for documents on the Internet although the same document at two different locations has two URLs. By contrast, persistent identifiers such as DOI names identify objects as first class entities: two instances of the same object would have
8820-425: The object, such as a URL where the object is located. Thus, by being actionable and interoperable , a DOI differs from ISBNs or ISRCs which are identifiers only. The DOI system uses the indecs Content Model to represent metadata . The DOI for a document remains fixed over the lifetime of the document, whereas its location and other metadata may change. Referring to an online document by its DOI should provide
8925-454: The objects they describe can be found. To achieve its goals, the DOI system combines the Handle System and the indecs Content Model with a social infrastructure. The Handle System ensures that the DOI name for an object is not based on any changeable attributes of the object such as its physical location or ownership, that the attributes of the object are encoded in its metadata rather than in its DOI name, and that no two objects are assigned
9030-466: The official languages of the European Union . It is also spoken by the Bulgarian historical communities in North Macedonia , Ukraine , Moldova , Serbia , Romania , Hungary , Albania and Greece . One can divide the development of the Bulgarian language into several periods. Bulgarian was the first Slavic language attested in writing. As Slavic linguistic unity lasted into late antiquity,
9135-466: The oldest manuscripts initially referred to this language as ѧзꙑкъ словѣньскъ, "the Slavic language". In the Middle Bulgarian period this name was gradually replaced by the name ѧзꙑкъ блъгарьскъ, the "Bulgarian language". In some cases, this name was used not only with regard to the contemporary Middle Bulgarian language of the copyist but also to the period of Old Bulgarian. A most notable example of anachronism
9240-429: The past pluperfect subjunctive. Perfect constructions use a single auxiliary "be". The traditional interpretation is that in addition to the four moods (наклонения /nəkloˈnɛnijɐ/ ) shared by most other European languages – indicative (изявително, /izʲəˈvitɛɫno/ ) imperative (повелително /poveˈlitelno/ ), subjunctive ( подчинително /pottʃiˈnitɛɫno/ ) and conditional (условно, /oˈsɫɔvno/ ) – in Bulgarian there
9345-591: The pockets of speakers of the related regional dialects in Albania and in Greece variously identify their language as Macedonian or as Bulgarian. In Serbia , there were 13,300 speakers as of 2011, mainly concentrated in the so-called Western Outlands along the border with Bulgaria. Bulgarian is also spoken in Turkey: natively by Pomaks , and as a second language by many Bulgarian Turks who emigrated from Bulgaria, mostly during
9450-467: The primary purpose of the DOI system is to make a collection of identifiers actionable and interoperable, where that collection can include identifiers from many other controlled collections. The DOI system offers persistent, semantically interoperable resolution to related current data and is best suited to material that will be used in services outside the direct control of the issuing assigner (e.g., public citation or managing content of value). It uses
9555-685: The proclamation of the Socialist Republic of Macedonia as part of the Yugoslav federation, the new authorities also started measures that would overcome the pro-Bulgarian feeling among parts of its population and in 1945 a separate Macedonian language was codified. After 1958, when the pressure from Moscow decreased, Sofia reverted to the view that the Macedonian language did not exist as a separate language. Nowadays, Bulgarian and Greek linguists, as well as some linguists from other countries, still consider
9660-466: The resultant verb often deviates in meaning from the original. In the pair examples above, aspect is stem-specific and therefore there is no difference in meaning. In Bulgarian, there is also grammatical aspect . Three grammatical aspects are distinguishable: neutral, perfect and pluperfect. The neutral aspect comprises the three simple tenses and the future tense. The pluperfect is manifest in tenses that use double or triple auxiliary "be" participles like
9765-411: The same DOI name. DOI name resolution is provided through the Handle System , developed by Corporation for National Research Initiatives , and is freely available to any user encountering a DOI name. Resolution redirects the user from a DOI name to one or more pieces of typed data: URLs representing instances of the object, services such as e-mail, or one or more items of metadata. To the Handle System,
9870-537: The same DOI name. Because DOI names are short character strings, they are human-readable, may be copied and pasted as text, and fit into the URI specification. The DOI name-resolution mechanism acts behind the scenes, so that users communicate with it in the same way as with any other web service; it is built on open architectures , incorporates trust mechanisms , and is engineered to operate reliably and flexibly so that it can be adapted to changing demands and new applications of
9975-431: The same thing. Imprecisely referring to a set of schemes as "identifiers" does not mean that they can be compared easily. Other "identifier systems" may be enabling technologies with low barriers to entry, providing an easy to use labeling mechanism that allows anyone to set up a new instance (examples include Persistent Uniform Resource Locator (PURL), URLs, Globally Unique Identifiers (GUIDs), etc.), but may lack some of
10080-520: The singular ones, but may also provide some clues to it: the ending –и (-i) is more likely to be used with a masculine or feminine noun ( факти /ˈfakti/ 'facts', болести /ˈbɔlɛsti/ 'sicknesses'), while one in –а/–я belongs more often to a neuter noun ( езера /ɛzɛˈra/ 'lakes'). Also, the plural ending –ове /ovɛ/ occurs only in masculine nouns. Two numbers are distinguished in Bulgarian– singular and plural . A variety of plural suffixes
10185-428: The standard Bulgarian language, however, did not wish to make any allowances for a pluricentric "Bulgaro-Macedonian" compromise. In 1870 Marin Drinov , who played a decisive role in the standardization of the Bulgarian language, rejected the proposal of Parteniy Zografski and Kuzman Shapkarev for a mixed eastern and western Bulgarian/Macedonian foundation of the standard Bulgarian language, stating in his article in
10290-484: The various Macedonian dialects as part of the broader Bulgarian pluricentric dialectal continuum . Outside Bulgaria and Greece, Macedonian is generally considered an autonomous language within the South Slavic dialect continuum. Sociolinguists agree that the question whether Macedonian is a dialect of Bulgarian or a language is a political one and cannot be resolved on a purely linguistic basis, because dialect continua do not allow for either/or judgements. In 886 AD,
10395-535: The verb class. The possible existence of a few other moods has been discussed in the literature. Most Bulgarian school grammars teach the traditional view of 4 Bulgarian moods (as described above, but excluding the subjunctive and including the inferential). There are three grammatically distinctive positions in time – present, past and future – which combine with aspect and mood to produce a number of formations. Normally, in grammar books these formations are viewed as separate tenses – i. e. "past imperfect" would mean that
10500-458: The verb is in past tense, in the imperfective aspect, and in the indicative mood (since no other mood is shown). There are more than 40 different tenses across Bulgarian's two aspects and five moods. Doi (identifier) A digital object identifier ( DOI ) is a persistent identifier or handle used to uniquely identify various objects, standardized by the International Organization for Standardization (ISO). DOIs are an implementation of
10605-435: The water of the whole cirque. At first, it forms an underground river under the ridge but at a distance of 250 m the waters appear on the surface and sweeps down the slopes. The lake teems with trout, which has eventually given its name. The Upper Vasilashko Lake (Bulgarian: Горно Василашко езеро) is situated at 2,154 m under the Tipits Peak. Its shape resembles that of a boomerang (212x235 m) and has area of 23.2 decares. It
10710-457: The yat alternation in almost all Eastern dialects that have it (except a few dialects along the yat border, e.g. in the Pleven region). More examples of the yat umlaut in the literary language are: Until 1945, Bulgarian orthography did not reveal this alternation and used the original Old Slavic Cyrillic letter yat (Ѣ), which was commonly called двойно е ( dvoyno e ) at the time, to express
10815-510: Was approved by 100% of those voting in a ballot closing on 15 November 2010. The final standard was published on 23 April 2012. DOI is a registered URI under the info URI scheme specified by IETF RFC 4452 . info:doi/ is the infoURI Namespace of Digital Object Identifiers. The DOI syntax is a NISO standard, first standardized in 2000, ANSI/NISO Z39.84-2005 Syntax for the Digital Object Identifier. The maintainers of
10920-430: Was controlled by Serbia and Greece , but there were still hopes and occasional attempts to recover it. With the 1945 orthographic reform, this letter was abolished and the present spelling was introduced, reflecting the alternation in pronunciation. This had implications for some grammatical constructions: Sometimes, with the changes, words began to be spelled as other words with different meanings, e.g.: In spite of
11025-614: Was started by http://doai.io. This service is unusual in that it tries to find a non-paywalled (often author archived ) version of a title and redirects the user to that instead of the publisher's version . Since then, other open-access favoring DOI resolvers have been created, notably https://oadoi.org/ in October 2016 (later Unpaywall ). While traditional DOI resolvers solely rely on the Handle System, alternative DOI resolvers first consult open access resources such as BASE (Bielefeld Academic Search Engine). An alternative to HTTP proxies
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