Different methods and approaches of the educational process (based on foreign language teaching) and the importance of informational and communicational technology in XXI century

Объективной потребностью современного общества является поиск оптимальных путей организации учебно-воспитательного процесса, рациональных вариантов содержания обучения и его структуры. Без сомнений, важная проблема современного образования – переориентация и трансформация целей обучения иностранному языку, а также содержания обучения. Одним из наиболее значительных достижений последнего десятилетия является создание международной сети, что значительно повлияло на образовательный процесс. Внедрение и использование киберпространства стало совершенно новым направлением в дидактике. В то же время изменения, которые были реализованы или находятся в процессе реализации, влияют на все аспекты образовательного процесса, начиная с методов обучения и заканчивая требованиями к академическому уровню студентов и преподавателей. В статье рассмотрены некоторые проблемы и специфика учебного процесса в XXI векеThe objective demand of modern society is the search for optimal ways of organization of the educational process, also the rational choice of teaching content and its essential structure. Without a doubt, the most important problem in modern education is the «reorientation» and transformation of the objectives of foreign language teaching and learning content. One of the most significant achievements of the last decade is the creation of an international network, which greatly influenced the educational process. Implementation and use of cyber space has become an entirely new direction in the didactics. At the same time, the changes that have been implemented or are in the process changes affect all aspects of the educational process, starting with teaching methods and ending with the requirements of the academic level of students and teachers. The article deals with certain problems and specifics of the educational proces

The effect of the neutral sheet structure of the interplanetary magnetic field on cosmic ray distribution in space

Results of the numerical solution of the anistoropic diffusion equation are presented. The modulation depth of galactic cosmic rays is defined by the degree of curvature of the neutral current sheet in the heliosphere. The effect of the regular interplanetary magnetic field (IMF) on cosmic ray anisotropy in the period of solar activity minimum (in 1976) is analyzed by the data of the neutron super-monitors of the world network, and the heliolatitudinal gradient and cosmic ray diffusion coefficient are defined

Investigation of Quantum Chaos in the Parametric Dependent System of Interacting oscillators

Formation of chaos in the parametric dependent system of interacting oscillators for the both classical and quantum cases has been investigated. Domain in which classical motion is chaotic is defined. It has been shown that for certain values of the parameters from this domain, form of the classical power spectrum is in a good agreement with the quantum band profile. Local density of states is calculated. The range in which application of perturbation theory is correct has been defined.Comment: 9 figures. to be published in Mod.Phys.Lett.

Activity Patterns Govern Synapse-Specific AMPA Receptor Trafficking between Deliverable and Synaptic Pools

SummaryIn single neurons, glutamatergic synapses receiving distinct afferent inputs may contain AMPA receptors (-Rs) with unique subunit compositions. However, the cellular mechanisms by which differential receptor transport achieves this synaptic diversity remain poorly understood. In lateral geniculate neurons, we show that retinogeniculate and corticogeniculate synapses have distinct AMPA-R subunit compositions. Under basal conditions at both synapses, GluR1-containing AMPA-Rs are transported from an anatomically defined reserve pool to a deliverable pool near the postsynaptic density (PSD), but further incorporate into the PSD or functional synaptic pool only at retinogeniculate synapses. Vision-dependent activity, stimulation mimicking retinal input, or activation of CaMKII or Ras signaling regulated forward GluR1 trafficking from the deliverable pool to the synaptic pool at both synapses, whereas Rap2 signals reverse GluR1 transport at retinogeniculate synapses. These findings suggest that synapse-specific AMPA-R delivery involves constitutive and activity-regulated transport steps between morphological pools, a mechanism that may extend to the site-specific delivery of other membrane protein complexes

Ras signaling mechanisms underlying impaired GluR1-dependent plasticity associated with fragile X syndrome

Fragile X syndrome, caused by the loss of FMR1 gene function and loss of fragile X mental retardation protein (FMRP), is the most commonly inherited form of mental retardation. The syndrome is characterized by associative learning deficits, reduced risk of cancer, dendritic spine dysmorphogenesis, and facial dysmorphism. However, the molecular mechanism that links loss of function of FMR1 to the learning disability remains unclear. Here, we report an examination of small GTPase Ras signaling and synaptic AMPA receptor (AMPA-R) trafficking in cultured slices and intact brains of wild-type and FMR1 knock-out mice. In FMR1 knock-out mice, synaptic delivery of GluR1-, but not GluR2L- and GluR4-containing AMPA-Rs is impaired, resulting in a selective loss of GluR1- dependent long-term synaptic potentiation (LTP). Although Ras activity is upregulated, its downstream MEK (extracellular signal-regulated kinase kinase)-ERK (extracellular signal-regulated kinase) signaling appears normal, and phosphoinositide 3-kinase (PI3K)-protein kinase B (PKB; or Akt) signaling is compromised in FMR1 knock-out mice. Enhancing Ras-PI3K-PKB signaling restores synaptic delivery of GluR1-containing AMPA-Rs and normal LTP in FMR1 knock-out mice. These results suggest aberrant Ras signaling as a novel mechanism for fragile X syndrome and indicate manipulating Ras-PI3K-PKB signaling to be a potentially effective approach for treating patients with fragile X syndrome

Alterations in physicochemical characteristics of blood plasma in men with prostate tumors

Prostate cancer is one of the most common cancers in men worldwide. Therefore, identification of specific biomarkers for early dignosis are crucial prerequisites for efficient treatment of patients. We investigated alterations in the physicochemical characteristics of blood plasma proteins from men with prostate tumors, and its diagnostic significance with the identified alterations. Blood plasma of patients with benign hyperplasia of the prostate (BHP), BHP with high-grade prostatic intraepithelial neoplasia (HGPIN) regions and Cancer of Prostate (CaP) were used. Spectroscopic and SDS-PAGE methodologies were utilized for examining alterations in the physicochemical characteristics of blood plasma proteins. Relationship between alterations of the first-peak fluorescence intensities and prostate tumor progression was observed. Also, increased intensity of the second-peak corresponding to nicotinamide co-enzymes (NADH and NADPH) was noted in BHP-with-HGPIN and CaP specimens. The main peak maximum (Td) was observed at 66-67°C in BHP plasma and at 63-64°C in BHP-with-HGPIN regions and CaP. In BHP and BHP-with-HGPIN regions, an arm was noted at 70-71°С. The portions of thermostable proteins (acute phase proteins) were increased and modified proteins were formed in plasmas during the malignant transformation. Recorded fluorescence spectra allowed to differentiate prostate tumors and determine the disease progression. Differential scanning calorimetry markedly differentiated benign BHP-with-HGPIN regions and CaP, which shows the diagnostic importance of the method

The ventrolateral medulla and medullary raphe in sudden unexpected death in epilepsy

Sudden unexpected death in epilepsy (SUDEP) is a leading cause of premature death in patients with epilepsy. One hypothesis proposes that sudden death is mediated by post-ictal central respiratory depression, which could relate to underlying pathology in key respiratory nuclei and/or their neuromodulators. Our aim was to investigate neuronal populations in the ventrolateral medulla (which includes the putative human pre-Bötzinger complex) and the medullary raphe. Forty brainstems were studied comprising four groups: 14 SUDEP, six epilepsy controls, seven Dravet syndrome cases and 13 non-epilepsy controls. Serial sections through the medulla (from obex 1 to 10 mm) were stained for Nissl, somatostatin, neurokinin 1 receptor (for pre-Bötzinger complex neurons) and galanin, tryptophan hydroxylase and serotonin transporter (neuromodulatory systems). Using stereology total neuronal number and densities, with respect to obex level, were measured. Whole slide scanning image analysis was used to quantify immunolabelling indices as well as co-localization between markers. Significant findings included reduction in somatostatin neurons and neurokinin 1 receptor labelling in the ventrolateral medulla in sudden death in epilepsy compared to controls (P < 0.05). Galanin and tryptophan hydroxylase labelling was also reduced in sudden death cases and more significantly in the ventrolateral medulla region than the raphe (P < 0.005 and P < 0.05). With serotonin transporter, reduction in labelling in cases of sudden death in epilepsy was noted only in the raphe (P ≤ 0.01); however, co-localization with tryptophan hydroxylase was significantly reduced in the ventrolateral medulla. Epilepsy controls and cases with Dravet syndrome showed less significant alterations with differences from non-epilepsy controls noted only for somatostatin in the ventrolateral medulla (P < 0.05). Variations in labelling with respect to obex level were noted of potential relevance to the rostro-caudal organization of respiratory nuclear groups, including tryptophan hydroxylase, where the greatest statistical difference noted between all epilepsy cases and controls was at obex 9-10 mm (P = 0.034), the putative level of the pre-Bötzinger complex. Furthermore, there was evidence for variation with duration of epilepsy for somatostatin and neurokinin 1 receptor. Our findings suggest alteration to neuronal populations in the medulla in SUDEP with evidence for greater reduction in neuromodulatory neuropeptidergic and mono-aminergic systems, including for galanin, and serotonin. Other nuclei need to be investigated to evaluate if this is part of more widespread brainstem pathology. Our findings could be a result of previous seizures and may represent a pathological risk factor for SUDEP through impaired respiratory homeostasis during a seizure