ASSESSMENT OF OCCURRENCE OF ASYMMETRY OF FOLIDOZ OF THE HEAD AT ORDINARY (NATRIX NATRIX LINNAEUS, 1758) AND WATER (NATRIX TESSELLATA LAURENTI, 1768) UZHEY IN ANTHROPOGENE-MODIFIED AND NATURAL LANDSCAPES OF THE VOLGOGRAD REGION

The real work represents the analysis of frequency of occurrence of asymmetry of bilateral structures of a scaly cover of ordinary and water ears in the territory of the Volgograd region in the anthropogene-modified and natural landscapes, based on original these authors. Manifestation of asymmetry of a folidoz of the head of these types most possibly in number of labial, supralabial and temporal guards. Close indicators of coefficients of asymmetry of different types of the sort Natrix tells about similarity of microclimatic conditions and influence of factors of destabilization of ontogenetic development.Настоящая работа представляет собой анализ частоты встречаемости асимметрии билатеральных структур чешуйчатого покрова обыкновенного и водяного ужей на территории Волгоградской области в антропогенно-модифицированных и естественных ландшафтах, основанный на оригинальных данных авторов

The headache under-response to treatment (HURT) questionnaire, an outcome measure to guide follow-up in primary care: development, psychometric evaluation and assessment of utility

Background: Headache disorders are both common and burdensome but, given the many people affected, provision of health care to all is challenging. Structured headache services based in primary care are the most efficient, equitable and cost-effective solution but place responsibility for managing most patients on health-care providers with limited training in headache care. The development of practical management aids for primary care is therefore a purpose of the Global Campaign against Headache. This manuscript presents an outcome measure, the Headache Under-Response to Treatment (HURT) questionnaire, describing its purpose, development, psychometric evaluation and assessment for clinical utility. The objective was a simple-to-use instrument that would both assess outcome and provide guidance to improving outcome, having utility across the range of headache disorders, across clinical settings and across countries and cultures. Methods: After literature review, an expert consensus group drawn from all six world regions formulated HURT through item development and item reduction using item-response theory. Using the American Migraine Prevalence and Prevention Study’s general-population respondent panel, two mailed surveys assessed the psychometric properties of HURT, comparing it with other instruments as external validators. Reliability was assessed in patients in two culturally-contrasting clinical settings: headache specialist centres in Europe (n = 159) and primary-care centres in Saudi Arabia (n = 40). Clinical utility was assessed in similar settings (Europe n = 201; Saudi Arabia n = 342). Results: The final instrument, an 8-item self-administered questionnaire, addressed headache frequency, disability, medication use and effect, patients’ perceptions of headache “control” and their understanding of their diagnoses. Psychometric evaluation revealed a two-factor model (headache frequency, disability and medication use; and medication efficacy and headache control), with scale properties apparently stable across disorders and correlating well and in the expected directions with external validators. The literature review found few instruments linking assessment to clinical advice or suggested actions: HURT appeared to fill this gap. In European specialist care, it showed utility as an outcome measure across headache disorders. In Saudi Arabian primary care, HURT (translated into Arabic) was reliable and responsive to clinical change. Conclusions: With demonstrated validity and clinical utility across disorders, cultures and settings, HURT is available for clinical and research purposes

ECOLOGY AND MORPHOLOGY OF THE SPOTTED TOAD AGAMA (PHRYNOCEPHALUS GUTTATUS (GMELIN, 1789) IN THE NORTH AREA IN THE VOLGA REGION (VOLGOGRAD REGION)

Presents data on the distribution, morphology, population dynamics of Phrynocephalus guttatus, and analysis of the geographic variability of the basic metric characteristics

Nanoparticles effect on magnetic and transport properties of (La₀,₇Sr₀,₃)₀,₉Mn₁.₁O₃ manganites

We report on the magnetic and transport thermal measurements of nanosize (La₀,₇Sr₀,₃)₀,₉Mn₁.₁O₃ manganite. The nanoparticles were synthesized with use of co-precipitation method at different (800, 900 and 950 °C) temperatures. Their crystal structure was determined to be perovskite-like with a rhombohedral distortion (the space group R3̅c). The phase composition and specific surface nanopowders were determined. The average size of synthesized nanoparticles (from 40 to 100 nm) was estimated by both the method of low-temperature adsorption of argon and x-ray diffraction measurements. All the nanosize samples show ferromagnetic-like ordering with close phase transition temperatures. Their magnetization decreases with reducing the particle size. Comparison of experimental and calculated temperature dependences of the spontaneous magnetic moment shows that the spontaneous magnetization both in magnetic field and without field is well described in the frame of the double exchange model. The decrease of magnetization with decreasing particle size is due to increasing the surface contribution to magnetization. The magnetic entropy was shown to increase with increasing applied magnetic field and to be smaller for the small particles. The resistivity was established to become higher with reducing the particles size at any temperatures