562 research outputs found

    TWO NEW PLOCENE SPECIES OF CYCLOSTEPHANOS (BACILLARIOPHYCEAE) WITH COMMENTS ON THE CLASSIFICATION OF THE FRESHWATER THALASSIOSIRACEAE 1

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    Two new species of the diatom genus Cyclostephanos Round are described from Pliocene fossil deposits in western North America. Cyclostephanos undatus is distinguished from other Cyclostephanos species by its tangentially undulate valve face; Cyclostephanos fenestratus is distinguished by its extremely shallow alveoli. This paper records previously unreported morphological detail of Cyclostephanos and speculates that structure of the punctum, labiate process and strutted process may enhance diagnosis of the freshwater genera of the Thalassiosiraceae Lebour emend. Hasle. Cyclostephanos undatus is similar to several Cyclotella species, but its external costae are raised and its alveolar morphology is similar to that of Cyclostephanos dubius (Fricke) Round. Cyclostephanos fenestratus is similar in external view to Stephanodiscus Ehrenb. However, the two species described here have flat cribra covering the mantle puncta and the labiate processes appear to lack external tubes, whereas Stephanodiscus species have domed mantle cribra and external tubes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65645/1/j.1529-8817.1986.tb04154.x.pd

    Результаты фармакоэпидемиологического исследования эпилепсии в Белоруссии

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    the lack of proper information on the epidemiological characteristics of epilepsy results in significant shortcomings in available health care. This pharmacoepidemiological study was undertaken to improve the situation. Objective: to assess the prevalence profile and management of patients with epilepsy in Minsk based on out-patient visit data obtained in health centres subordinate to the Ministry of Health of the Republic of Belarus. Materials and methods: the epidemiological study was conducted in accordance with the ILAE ‘Guidelines for epidemiologic studies on epilepsy’. Results: epilepsy incidence and prevalence were evaluated across Minsk gender- and age-based population groups. Aetiological and social aspects of epilepsy were reviewed. Out-patient visit data collected for the period from 2008 to 2012 revealed 705 patients with epilepsy. The overall epilepsy prevalence rate of the district varied from 165.2 per 100,000 population in 2008 to 275.5 per 100,000 population in 2012, while the incidence rate ranged from 36.9 per 100,000 population (in 2008) to 25.0 per 100,000 population (in 2012). The most frequently administered anti-epileptics included carbamazepine (52.9 % of patients) and valproates (31.0 % of subjects). The most commonly administered second-generation anti-epileptics were topiramate (7.1 % of patients) and lamotrigine (2.9 % of subjects). No anti-epileptics were used by 9.5 % of study subjects. Conclusions: the prevalence of epilepsy corresponds to the European Union prevalence rate. Proposals have been made concerning optimization of health care for patients with epilepsy. There is a need for large-scale pharmacoepidemiological and pharmacoeconomic studies.отсутствие должной информации об эпидемиологических характеристиках эпилепсии обусловливает существенные недостатки организации медицинской помощи. Для устранения этих факторов предпринято данное фармакоэпидемиологическое исследование. Цель: исследование профиля заболеваемости и ведения пациентов с эпилепсией в г. Минске по данным обращаемости за медицинской помощью в учреждения системы Минздрава Республики Беларусь. Материалы и методы: исследование эпидемиологии проводилось в соответствии с руководством по проведению эпидемиологических исследований эпилепсии (Guidelines for epidemiologic studies on epilepsy) ILAE. Результаты: изучена заболеваемость эпилепсией и распространенность в гендерновозрастных группах населения г. Минска. Рассмотрены этиологические и социальные аспекты эпилепсии. По данным обращаемости в амбулаторно-поликлинические учреждения за период 2008-2012 гг., выявлено 705 пациентов с эпилепсией. Общая заболеваемость эпилепсией в районе составляла от 165,2 на 100 тыс. населения в 2008 г., до 275,5 – на 100 тыс. населения в 2012 г., первичная – от 36,9 на 100 тыс. населения (в 2008 г.), до 25,0 на 100 тыс. населения (в 2012 г.). Среди назначаемых противоэпилептических препаратов наиболее часто применялись карбамазепин (52,9% пациентов) и вальпроаты (31,0% пациентов). Из противоэпилептических препаратов II поколения назначались топирамат – 7,1% пациентов, и ламотриджин – 2,9% пациентов. При этом 9,5% пациентов не принимали противоэпилептических препаратов. Выводы: распространенность эпилепсии соответствует уровню распространенности в Евросоюзе. Предложены пути оптимизации оказания противоэпилептической помощи. Существует потребность в проведении масштабных фармакоэпидемиологических и фармакоэкономических исследований

    Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions

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    Search for heavy Majorana neutrinos in e±e± and e±μ± final states via WW scattering in pp collisions at s=13 TeV with the ATLAS detector

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    Search for the Exclusive W Boson Hadronic Decays W±→π±γ , W±→K±γ and W±→ρ±γ with the ATLAS Detector

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    Measurement of ZZ production cross-sections in the four-lepton final state in pp collisions at √s = 13.6 TeV with the ATLAS experiment

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    Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at s=13\sqrt{s}=13 TeV with the ATLAS detector

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    Statistical Combination of ATLAS Run 2 Searches for Charginos and Neutralinos at the LHC

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    Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using 139 fb^{-1} of pp collision data at sqrt[s]=13 TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or Higgsino production decaying via standard model W, Z, or h bosons are combined to extend the mass reach to the produced supersymmetric particles by 30-100 GeV. The depth of the sensitivity of the original searches is also improved by the combinations, lowering the 95% C.L. cross-section upper limits by 15%-40%
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