scholarly journals On the occurrence of some species of the mustard family (Cruciferae) in certain regions of Mongolia

Turczaninowia ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 5-8
Author(s):  
Dmitry A. German
Keyword(s):  
Relevant Literature ◽  
Western Mongolia ◽  
Taxonomic Research ◽  
Relevant Field ◽  
Herbarium Collections ◽  
Relevant Material

On the basis of analysis of relevant literature as well as herbarium collections of LE and MW, unreliability of recent record of four Cruciferae species from easternt Mongolia is proved, viz. Alyssum desertorum (Middle Khalkha), Crucihimalaya mollissima, Sisymbrium brassiciforme (both – East Mongolia), and Meniocus linifolius (Great Khingan). It is found that the species could not be collected in 1987 and false findings are based on the confusion with labels of the season 1984 with similar field numbers, a conclusion further supported by the information from relevant field diaries. It is documented that herbarium collections of joint Soviet-Mongolian biological expedition kept in UBA are mislabeled in a way that at least part of gatherings attributed to 1987 actually represent material collected in 1984 in western Mongolia. This fact should be considered when making floristic and taxonomic research in Mongolia; besides, the need of re-labeling of relevant material in UBA is stressed.

scholarly journals Computer methods of analysis of phenetic characters and their application in taxonomy of annual astragali

2018 ◽  
pp. 40-48
Author(s):  
D.D. Slastunov ◽  
A.K. Sytin ◽  
L.V. Rjazanova
Keyword(s):  
Assistive Technologies ◽  
Taxonomic Group ◽  
Taxonomic Significance ◽  
Computer Methods ◽  
Computer Aided Analysis ◽  
Taxonomic Research ◽  
Diagnostic Key ◽  
Herbarium Collections ◽  
Former Ussr ◽  
Stem Leaf

One of the methods of modern taxonomy is computerized data systematization and analysis. The development and application of original computer-aided analysis of the taxonomic significance of the phenetic characters of 33 species of annual milkvetches found on the territory of the former USSR allowed solving a number of taxonomic problems and moving closer to understanding the phylogeny of some groups, and developing approaches to formalizing the phenetic characters. In the course of the research, some assistive technologies were also tried, designed to reduce the subjectivity of taxonomic research and improve the adequacy of the data obtained. The result was a multi-input diagnostic key, as well as an illustrated database – an atlas for the considered taxonomic group, in which all species were described by 72 rows of characters combined into 9 groups: plant biomorphology, shoot, stem, leaf, leaflet, inflorescence, flower, fruit and seeds. The database reproduces images of a large number of samples from considered taxonomic group, including the type samples stored in the herbarium collections of the Komarov Botanical Institute (LE). The studies are monographic in nature – a summary of annual milkvetches in the territory of the former USSR is created, clarifying information about their distribution, ecology and morphology.

A revision of the lichen genus Platismatia (Parmeliaceae) in Russia, with a key to the species

2021 ◽  
Vol 55 (1) ◽  
pp. 179-194
Author(s):  
E. S Kuznetsova ◽  
I. S. Stepanchikova ◽  
I. F. Skirina ◽  
S. V. Chesnokov ◽  
D. E. Himelbrant
Keyword(s):  
North America ◽  
Relevant Literature ◽  
Pacific Region ◽  
Western North America ◽  
Northeastern Asia ◽  
Commander Islands ◽  
The Pacific ◽  
Herbarium Collections

The paper presents the results of the study on Platismatia species in Russia. The genus Platismatia counts 11 species, distributed mainly in the Pacific region, with some endemics of western North America and northeastern Asia. Six species were known from Russia by the beginning of our studies, but a revision of the herbarium collections showed that three species (P. erosa, P. herrei, and P. lacunosa) were reported erroneously. Based on morphological and chemotaxonomical (HPTLC) examination of the herbarium collections and our own material, as well as the study of relevant literature, four species of Platismatia are here accepted for Russia: P. glauca, P. interrupta, P. lacunosa, and P. norvegica. Platismatia lacunosa is reported here as a new for Russia from the Commander Islands. The distribution of P. glauca and P. interrupta is clarified. A key to all species of the genus reported from Russia and brief descriptions of the Russian species are presented.

scholarly journals Flora of Vladimir Oblast, Russia: an updated grid dataset (1867–2020)

2021 ◽  
Vol 9 ◽  
Author(s):  
Alexey P. Seregin
Keyword(s):  
Native Species ◽  
Vascular Plant ◽  
Relevant Literature ◽  
Field Studies ◽  
Grid Data ◽  
Southern Boundary ◽  
Vladimir Oblast ◽  
Grid Scheme ◽  
Herbarium Collections ◽  
Species Hybrids

The dataset covers wild tracheophytes (native species, naturalised aliens and casuals) of Vladimir Oblast, Russia. It includes only one occurrence per species per grid square, thereby recently confirmed earlier records are not duplicated. Georeferences are based on the WGS84 grid scheme with 342 squares with areas ranging from 94.7 km2 in the northernmost part to 98.2 km2 on the southern boundary (5′ lat. × 10′ long.). Each occurrence is linked to the corresponding grid square centroid, therefore actual coordinates, habitat details and voucher information are unavailable. In late 2011, the earlier version of the dataset was used for the production of grid maps in the standard "Flora of Vladimir Oblast: checklist and atlas". Additional records, obtained during field excursions of 2012 and 2013, were fully included in the "Flora of Vladimir Oblast: grid data analysis". The stable version of the dataset with 123,054 grid records (as of 1867–2013) was published in GBIF in 2017. Data obtained in the field during 2014–2020, as well as those extracted from recently published sources, were digitised, structured and finally published in GBIF in April 2021. The last update added 7,000 new grid records. Currently, "Flora of Vladimir Oblast, Russia: an updated grid dataset (1867–2020)" contains 130,054 unique occurrences of 1,465 vascular plant taxa (species, hybrids, species aggregates) from Vladimir Oblast and tiny parts of the adjacent areas. The average number of grid records has grown over the seven years from 363 to 380 species. The grid occurrences are largely based on the field studies by the author, performed during 1999–2020 (121,737 records), as well as on data extracted from the relevant literature, unpublished sources, herbarium collections and citizen science projects (8,317 records). The taxonomic backbone of the occurrence grid dataset follows the accompanying checklist dataset to ensure correct cross-linking of the names. As of April 2021, the dataset on the Vladimir Oblast flora represents the fourth largest dataset on vascular plants of Russia published in GBIF.

scholarly journals New synonyms and combinations in Drimia Jacq. (Hyacinthaceae) in southern Africa

Bothalia ◽  
2019 ◽  
Vol 49 (1) ◽  
Author(s):  
John C. Manning
Keyword(s):  
South African ◽  
Southern Africa ◽  
Classification System ◽  
Relevant Literature ◽  
New Combination ◽  
New Synonyms ◽  
African Flora ◽  
Relevant Material

Background: Ongoing systematic studies in the African flora necessitate periodic nomenclatural adjustments and corrections.Objectives: To effect requisite nomenclatural changes.Method: Relevant literature was surveyed and relevant material was examined.Results: Nomenclatural adjustments are provided for recently described taxa of Hyacinthaceae subfamily Urgineoideae in order to accommodate them in the alternative classification system in use in South African herbaria.Conclusion: A broadly circumscribed Drimia Jacq. has the advantages of nomenclatural stability and utility. The newly described segregate genera Austronea Mart.-Azorín et al. and Zingela N.R.Crouch et al. are formally included in Drimia, and A. densiflora Mart.-Azorín et al., A. hispidoplicata Mart.-Azorín et al. and A. pinguis Mart.-Azorín et al. are transferred to that genus as D. densiflora (Mart.-Azorín et al.) J.C.Manning Goldblatt, D. hispidoplicata(Mart.-Azorín et al.) J.C.Manning Goldblatt and D. pinguis (Mart.-Azorín et al.) J.C.Manning Goldblatt, respectively, whereas A. grandiflora Mart.-Azorín et al. and A. linearis Mart.-Azorín et al. are treated as synonyms of D. vermiformis J.C.Manning Goldblatt; A. olifanta Mart.-Azorín et al. is treated as a synonym of D. barkerae Oberm. ex J.C.Manning Goldblatt; and A. papillosa Mart.-Azorín et al. and A. pygmaea (A.V. Duthie) Mart.-Azorín et al. are treated a synonyms of D. virens (Schltr.) J.C.Manning Goldblatt. Zingela pooleyorum N.R.Crouch is considered to be conspecific with Urginea zambesiacaBaker, for which the new combination D. zambesiaca (Baker) J.C.Manning Goldblatt is provided. The combination D. zebrina (Mart.-Azorín et al.) J.C.Manning Goldblatt is provided for an allied species. Examination of recent collections of Ornithogalum toxicarium C.Archer R.H.Archer confirms that it is actually a species of Drimia and it is accordingly transferred to that genus as D. toxicaria (C.Archer R.H.Archer) J.C.Manning Goldblatt.

scholarly journals The role of digital herbarium collections in the taxonomic revision of complex plant families: Salicaceae sensu stricto

2021 ◽  
Vol 38 ◽  
pp. 00014
Author(s):  
Irina Belyaeva ◽  
Nataliya Kovtonyuk
Keyword(s):  
Taxonomic Revision ◽  
Sensu Stricto ◽  
Digital Resources ◽  
Advantages And Disadvantages ◽  
Taxonomic Research ◽  
Botanical Research ◽  
Plant Families ◽  
Herbarium Collections

The importance of digitisation and digital resources in botanical research is underlined. Advantages and disadvantages of the use of digital herbaria in taxonomic research in Salicaceae sensu stricto are discussed and some suggestions on possible improvements are made.

Sharing of Worldwide Spread Knowledge Using Hypermedia Facilities & Fast Communication Protocols (Mosaic and World Wide Web): The Example of ExPASy

1995 ◽  
Vol 34 (01/02) ◽  
pp. 75-78 ◽  
Author(s):  
R. D. Appel ◽  
O. Golaz ◽  
Ch. Pasquali ◽  
J.-C. Sanchez ◽  
A. Bairoch ◽  
...  
Keyword(s):  
World Wide Web ◽  
World Wide ◽  
Relevant Literature ◽  
Communication Protocols ◽  
Laboratory Data ◽  
Central Element ◽  
University Hospital ◽  
New Information ◽  
The University ◽  
Link Information

Abstract:The sharing of knowledge worldwide using hypermedia facilities and fast communication protocols (i.e., Mosaic and World Wide Web) provides a growth capacity with tremendous versatility and efficacy. The example of ExPASy, a molecular biology server developed at the University Hospital of Geneva, is striking. ExPASy provides hypermedia facilities to browse through several up-to-date biological and medical databases around the world and to link information from protein maps to genome information and diseases. Its extensive access is open through World Wide Web. Its concept could be extended to patient data including texts, laboratory data, relevant literature findings, sounds, images and movies. A new hypermedia culture is spreading very rapidly where the international fast transmission of documents is the central element. It is part of the emerging new “information society”.

Patient Scheduling — (Bibliography)

1977 ◽  
Vol 16 (02) ◽  
pp. 112-115 ◽  
Author(s):  
C. O. Köhler ◽  
G. Wagner ◽  
U. Wolber
Keyword(s):  
Information Processing ◽  
Medical Care ◽  
Medical Informatics ◽  
Relevant Literature ◽  
Patient Scheduling ◽  
Individual Scientist ◽  
Set Up ◽  
The Individual ◽  
New Literature ◽  
Current Systems

The entire field of information processing in medicine is today already spread out and branched to such an extent that it is no longer possible to set up a survey on relevant literature as a whole. But even in narrow parts of medical informatics it is hardly possible for the individual scientist to keep up to date with new literature. Strictly defined special bibliographies on certain topics are most helpful.In our days, problems of optimal patient scheduling and exploitation of resources are gaining more and more importance. Scientists are working on the solution of these problems in many places.The bibliography on »Patient Scheduling« presented here contains but a few basic theoretical papers on the problem of waiting queues which are of importance in the area of medical care. Most of the papers cited are concerned with practical approaches to a solution and describe current systems in medicine.In listing the literature, we were assisted by Mrs. Wieland, Mr. Dusberger and Mr. Henn, in data acquisition and computer handling by Mrs. Gieß and Mr. Schlaefer. We wish to thank all those mentioned for their assistance.

Stroke Prevention in Non-Valvular Atrial Fibrillation

1997 ◽  
Vol 17 (03) ◽  
pp. 166-169
Author(s):  
Judith O’Brien ◽  
Wendy Klittich ◽  
J. Jaime Caro
Keyword(s):  
Atrial Fibrillation ◽  
Clinical Trials ◽  
Care Home ◽  
Relevant Literature ◽  
Clinical Trial Data ◽  
Outcome Data ◽  
Sensitivity Analyses ◽  
Bleeding Events ◽  
Discharge Data ◽  
The Cost

SummaryDespite evidence from 6 major clinical trials that warfarin effectively prevents strokes in atrial fibrillation, clinicians and health care managers may remain reluctant to support anticoagulant prophylaxis because of its perceived costs. Yet, doing nothing also has a price. To assess this, we carried out a pharmacoe-conomic analysis of warfarin use in atrial fibrillation. The course of the disease, including the occurrence of cerebral and systemic emboli, intracranial and other major bleeding events, was modeled and a meta-analysis of the clinical trials and other relevant literature was carried out to estimate the required probabilities with and without warfarin use. The cost of managing each event, including acute and subsequent care, home care equipment and MD costs, was derived by estimating the cost per resource unit, the proportion consuming each resource and the volume of use. Unit costs and volumes of use were determined from established US government databases, all charges were adjusted using cost-to-charge ratios, and a 3% discount rate was applied to costs incurred beyond the first year. The proportions of patients consuming each resource were estimated by fitting a joint distribution to the clinical trial data, stroke outcome data from a recent Swedish study and aggregate ICD-9 specific, Massachusetts discharge data. If nothing is done, 3.2% more patients will suffer serious emboli annually and the expected annual cost of managing a patient will increase by DM 2,544 (1996 German Marks), from DM 4,366 to DM 6,910. Extensive multiway sensitivity analyses revealed that the higher price of doing nothing persists except for very extreme combinations of inputs unsupported by literature or clinical standards. The price of doing nothing is thus so high, both in health and economic terms, that cost-consciousness as well as clinical considerations mandate warfarin prophylaxis in atrial fibrillation.

Human Capital Accumulation and Resource Abundance

2011 ◽  
pp. 66-77
Author(s):  
O. Vasilieva
Keyword(s):  
Economic Growth ◽  
Human Capital ◽  
Capital Accumulation ◽  
Relevant Literature ◽  
Harmful Effect ◽  
Human Capital Accumulation ◽  
Resource Abundance ◽  
Empirical Results ◽  
Theoretical Predictions ◽  
Crowd Out

Does resource abundance positively affect human capital accumulation? Or, alternatively, does it «crowd out» the human capital leading to the deterioration of economic growth? The paper gives an overview of the relevant literature and discusses both theoretical and empirical results obtained regarding the connection between human capital accumulation and resource abundance. It shows that despite some theoretical predictions about the harmful effect of resource abundance on human capital accumulation, unambiguous evidence of such impact that would be robust with respect to the change of resource abundance parameter has not been obtained yet.

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