On technique for counting of fish pyloric appendages

New technique for collecting, fixing and counting of fish pyloric appendages is described that does not use any chemical fixing reagent. It includes storing of chemically untreated deep-frozen samples during unlimited time, defrosting the samples, and heat treatment the samples in microwave oven depending on weight of sample and power of the oven. The technique allows to avoid work with toxic reagents, as ethanol and formalin, and to lower the costs of investigation

Certain features of using modified collagen-containing raw materials with prolonged shelf life in food technology

In the current circumstances, trends in nutrition of a person striving to lead a healthy life-style require intake of meat products with the reduced energy value, minimal amounts of fat, increased protein mass fraction, presence of substances improving homeostasis of the body. The synergism of the modern nutrition science and meat industry enables creating food products that satisfy consumers’ demand. Today, in the Russian Federation, a theoretical and practical base of the technology development has been collected to the full extent in the field of rational processing of secondary raw materials in the food industry, optimal use of animal secondary raw materials, study of the protein ingredients of animal and plant origin and their deep scientifically substantiated processing, improvement of technological processes and equipment, and correspondently, product range extension. The paper broadens the information about the modified collagen-containing raw materials (cattle rumen), examines physico-chemical characteristics of the collagen-containing raw material and its changes in the process of freeze-drying with a special attention paid to the study of changes in the histological structure. The presence of the relatively uniform fibrillar structure was determined, which facilitated discovering the functional potential of proteinoids that form the fibrillar matrix in the composition of products from different groups. Analysis of IR-spectra revealed several significant absorption bands linked with the state of peptide bonds. The character of bands is linked with the complex of valence and deformation vibrations of the N- and С- types. It is believed that IR-spectra reflect conformations in the protein secondary structure, which suggests preserving properties of the tropocollagen particle or collagen molecule. Freeze-dried modified collagen-containing cattle rumen was tested by the example of jellies. The obtained databank broadens information about physico-chemical properties of modified collagen-containing raw materials (cattle rumen).In the current circumstances, trends in nutrition of a person striving to lead a healthy life-style require intake of meat products with the reduced energy value, minimal amounts of fat, increased protein mass fraction, presence of substances improving homeostasis of the body. The synergism of the modern nutrition science and meat industry enables creating food products that satisfy consumers’ demand. Today, in the Russian Federation, a theoretical and practical base of the technology development has been collected to the full extent in the field of rational processing of secondary raw materials in the food industry, optimal use of animal secondary raw materials, study of the protein ingredients of animal and plant origin and their deep scientifically substantiated processing, improvement of technological processes and equipment, and correspondently, product range extension. The paper broadens the information about the modified collagen-containing raw materials (cattle rumen), examines physico-chemical characteristics of the collagen-containing raw material and its changes in the process of freeze-drying with a special attention paid to the study of changes in the histological structure. The presence of the relatively uniform fibrillar structure was determined, which facilitated discovering the functional potential of proteinoids that form the fibrillar matrix in the composition of products from different groups. Analysis of IR-spectra revealed several significant absorption bands linked with the state of peptide bonds. The character of bands is linked with the complex of valence and deformation vibrations of the N- and С- types. It is believed that IR-spectra reflect conformations in the protein secondary structure, which suggests preserving properties of the tropocollagen particle or collagen molecule. Freeze-dried modified collagen-containing cattle rumen was tested by the example of jellies. The obtained databank broadens information about physico-chemical properties of modified collagen-containing raw materials (cattle rumen)

Wernicke encephalopathy after sleeve gastrectomy

The article describes the case of a patient with Wernicke encephalopathy, which developed 3 months after the sleeve gastrectomy. An MRI of the brain was performed to verify the diagnosis, which revealed a symmetrical non-uniform increase in the MR signal on T2-WI and Tirm from the medial part of the thalamus, mastoid bodies and gray matter around the aqueduct of Sylvius. Thiamine infusion was promptly initiated as therapy. During treatment, acute neurological symptoms almost regressed, the patient was discharged in a satisfactory condition with preservation of vertical nystagmus under the supervision of specialists at the place of residence. Wernicke–Korsakoff syndrome more often occurs as a complication of alcoholism and arising from thiamine deficiency. However, the fact that this condition also occurs under the influence of other etiopathogenetic factors is often ignored by clinicians. In the management of patients after bariatric interventions, this condition is much more common in malabsorptive operations. However, a combination of certain factors can be described in patients after restrictive types of bariatric surgeries

Comparative Analysis of Clinical, Hormonal and Morphological Studies in Patients with Neuroendocrine ACTH-Producing Tumours

This paper highlights the problem of neuroendocrine tumours (NETs) with clinical symptoms of hypercorticism caused by hypersecretion of adrenocorticotropic hormone (ACTH) by tumour cells. In most cases (85%), the tumours were localized in the pituitary gland (Cushing's disease); 15% of the patients had an extrapituitary tumour that manifest as an ectopic ACTH secretion (EAS). Comparative analysis of clinical, hormonal, histological, and immunohistochemical characteristics of pituitary and extrapituitary ACTH-secreting NET was performed. It included 46 patients with CD and 38 ones exhibiting ectopic ACTH secretion (EAS). Results of the study suggest differences between CD and EAS in terms of the severity of clinical manifestations and duration of the disease. Hormonal studies showed that EAS unlike CD was associated with high plasma ACTH and cortisol levels, late-evening salivary cortisol and daily urinary free cortisol, the absence of a 60% or greater reduction of cortisol in the HDDST test, and the presence of a low (less than 2) ACTH gradient in response to desmopressin administration with catheterization of cavernous sinuses. The study of morphofunctional characteristics of the removed NET demonstrated the ability of both pituitary and extrapituitary NETs to express ACTH as well as GH, PRL, LH, and FSH. The angiogenic markers (CD31 and VEGF) were detected with equal frequency regardless of the NET localization. The histological structure of all corticotropinomas suggested their benign origin, but extrapituitary NETs were represented by different morphological types with varying malignancy, invasiveness, and metastatic properties. A higher cell proliferation potential (Ki-67) was documented for NET in patients presenting with an ectopic ACTH secretion compared to those having corticotropinomas

Актуальность разработки специализированных словарей в современных условиях ограничений на примере нефтегазовой отрасли

В работе представлен анализ актуальности разработки специализированных англо-русских и русско-английских словарей с учетом текущей ситуации в нефтегазовой отрасли России, действующих ограничений поставки импортного оборудования и продажи нефтепродуктов.The paper presents an analysis of the relevance of the compiling of specialized English-Russian and Russian-English dictionaries, considering the current situation in the Russian oil and gas industry and restrictions on the supply of imported equipment and the sale of petroleum products

Reaction of electrochemically generated radical anions with phosphorylated ureas

1. In the presence of phosphorylated ureas, oxygen, nitrobenzene, benzophenone, and anthracene are reduced in DMF on a mercury cathode according to the ECE mechanism, and the rate constants k2 and activation energies of the included chemical reaction were calculated. 2. Based on the kinetic data, the scheme of the process with included protonation of the radical anion in which any of the hydrogen atoms in the NH fragments of the PU molecules can participate was proposed. © 1988 Plenum Publishing Corporation

The foreign cadet’s adaptation problem during studying in Russian universities

В статье автором рассматривается проблема адаптации иностранных курсантов при обучении в российских вузах на краткосрочных программах повышения квалификации и профессиональной переподготовки. Автор предлагает разобрать проблему на примере военнослужащих Вьетнама, противопоставляет индивидуалистические культуры коллективистским, полихромные — монохромным, высокочастотные — низкочастотным. Дает описание — портрет вьетнамского курсанта, дает характеристику субъекта работы для российского преподавателя. Преподаватель играет одну из ведущих ролей в процессе культурной адаптации. Авторы статьи подчеркивают, что именно преподаватель и тьюторы должны учитывать особенности прибывших на обучение курсантов, кроме того ответственность за адаптацию ложится на самого военнослужащего. Сравнительный анализ культур, проведенный в статье, позволяет учитывать особенности обучающихся и особенным образом выстраивать процесс обучения и освоения материала.In the article, the author considers the adaptation problem of foreign cadets during studying in Russian universities on short-term programs for advanced training and professional retraining. The author proposes to analyze the problem on the example of Vietnamese military personnel. The author opposes individualistic cultures to collectivist cultures, polychrome cultures to monochrome cultures, high-context cultures to low-context cultures. The authors gave a portrait of a Vietnamese cadet and a description of the subject of work for a Russian teacher. The teacher plays one of the leading roles in the process of cultural adaptation. The authors of the article emphasize that the teachers and tutors should take into account the cadets’ peculiarities who have arrived for training, in addition, the responsibility for adaptation falls on the serviceman himself. The comparative analysis of cultures carried out in the article allows us to take into account the peculiarities of students and build the learning process in a special way

Anthropogenic- and natural sources of dust in peatland during the Anthropocene

As human impact have been increasing strongly over the last decades, it is crucial to distinguish human-induced dust sources from natural ones in order to define the boundary of a newly proposed epoch - the Anthropocene. Here, we track anthropogenic signatures and natural geochemical anomalies in the Mukhrino peatland, Western Siberia. Human activity was recorded there from cal AD 1958 (±6). Anthropogenic spheroidal aluminosilicates clearly identify the beginning of industrial development and are proposed as a new indicator of the Anthropocene. In cal AD 1963 (±5), greatly elevated dust deposition and an increase in REE serve to show that the geochemistry of elements in the peat can be evidence of nuclear weapon testing; such constituted an enormous force blowing soil dust into the atmosphere. Among the natural dust sources, minor signals of dryness and of the Tunguska cosmic body (TCB) impact were noted. The TCB impact was indirectly confirmed by an unusual occurrence of mullite in the pea