251 research outputs found
Why graduates of pedagogical institutes become managers?
The problems of future graduatesβ motivation increase to their occupational work is investigated. The features of the educational process organization in schools and universities of the country on the basis of the cultural orientation of training and the authorβs style of teaching are observed. In modern society, it is important to create new standards of moral and ethical rights as an essential component of the educational process and a new image of a man that should focus on pedagogical science. The system of continuous education Β«school β pedagogical universityΒ» should be expanded, the mode of university life should be changed and combined with the development and introduction if innovative processes in educational establishments. Practical steps of reform in higher pedagogical education are pointed out. The purpose of the paper is to identify the causes of the crisis in pedagogy science and in the system of teacher working up. Methods. Cultural, philosophical approaches are used to investigate the crisis of teacher education and teacher training. Results. Theoretical and practical activities of teaching activity methodology are considered under the conditions of economic and spiritual crisis. Being at a stable condition of a society, the teacher follows traditions and represents self as the compiler of memory of generations. Cultural and historical influence of pedagogical events of previous years ceases to be a significant; the teacher needs to have non-standard decisions, real affairs and the acts are required, helping to avoid repeatability and stability of professional failures. Also itβs important to possess a high level of education, culture, emotions and relationships that would provide live and emotionally rich communication of participants of the educational process; the aim of such communication is to establish the authenticity of the moral and spiritual values. Scientific novelty. Cultural bases of activity of the teaching staff of the university are considered. Ideological nature of pedagogic education as a base for self-actualization is shown. Practical significance. The specific steps to overcome the crisis in the system of training of higher educational qualifications are pointed out: development of strategy of the given preparation as a whole, and tactics of its realisation in concrete high schools on the basis of a social consensus principle; information assurance of financing sources of high school and the reporting on financial and economic activity of its staff; cancellation of introduction practice of various βnew generations of standardsβ, involving an avalanche of βmake workβ; educational process filling by student teaching in educational institutions of various types and kinds; development of an one-year cycle of a pedagogical education as the second higher education; granting of academic freedom to universities, etc. The importance of subject oriented education within the system Β«school β universityΒ» as a powerful tool to increase motivation of pedagogical work is highlightedΠ ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΌΠΎΡΠΈΠ²Π°ΡΠΈΠΈ Π±ΡΠ΄ΡΡΠΈΡ
ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΎΠ² ΠΊ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΠΎ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎΡΡΠΈ. Π‘ ΠΊΡΠ»ΡΡΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΠ·ΠΈΡΠΈΠΉ ΠΈ Ρ ΡΠ΅Π»ΡΡ ΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΡ Π²ΡΠΏΡΡΠΊΠ½ΠΈΠΊΠ°ΠΌΠΈ ΠΏΠ΅Π΄Π²ΡΠ·ΠΎΠ² Π°Π²ΡΠΎΡΡΠΊΠΎΠ³ΠΎ ΡΡΠΈΠ»Ρ ΠΏΡΠ΅ΠΏΠΎΠ΄Π°Π²Π°Π½ΠΈΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠ΅Π±Π½ΠΎ-Π²ΠΎΡΠΏΠΈΡΠ°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° Π² ΡΠΊΠΎΠ»Π°Ρ
ΠΈ Π²ΡΠ·Π°Ρ
ΡΡΡΠ°Π½Ρ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ°Π³ΠΈ ΠΏΠΎ ΡΠ΅ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΡΡΡΠ΅Π³ΠΎ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ. Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β Π²ΡΡΠ²Π»Π΅Π½ΠΈΠ΅ ΠΏΡΠΈΡΠΈΠ½ ΠΊΡΠΈΠ·ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π½Π°ΡΠΊΠΈ ΠΈ ΡΠΈΡΡΠ΅ΠΌΡ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠ°Π΄ΡΠΎΠ² ΠΈ ΠΏΠΎΠΈΡΠΊΠΈ Π²ΡΡ
ΠΎΠ΄Π° ΠΈΠ· Π·Π°ΡΡΠΆΠ½ΠΎΠ³ΠΎ ΠΊΡΠΈΠ·ΠΈΡΠ°. ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΠΊΡΠ»ΡΡΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅, ΡΠΈΠ»ΠΎΡΠΎΡΡΠΊΠΈΠ΅ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Ρ ΠΊ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΈ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΈ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΠΉ Π°ΡΠΏΠ΅ΠΊΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈ Π΄ΡΡ
ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΊΡΠΈΠ·ΠΈΡΠ°. ΠΡΠΈ ΡΡΠ°Π±ΠΈΠ»ΡΠ½ΠΎΠΌ ΡΠΎΡΡΠΎΡΠ½ΠΈΠΈ ΠΎΠ±ΡΠ΅ΡΡΠ²Π° ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ ΡΠ»Π΅Π΄ΡΠ΅Ρ ΡΡΠ°Π΄ΠΈΡΠΈΡΠΌ ΠΈ Π²ΡΡΡΡΠΏΠ°Π΅Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΡΡΠ°Π½ΡΠ»ΡΡΠΎΡΠ° ΠΏΠ°ΠΌΡΡΠΈ ΠΏΠΎΠΊΠΎΠ»Π΅Π½ΠΈΠΉ. ΠΠ΄Π½Π°ΠΊΠΎ Π² ΠΏΠ΅ΡΠΈΠΎΠ΄ ΠΊΡΠΈΠ·ΠΈΡΠ° ΠΊΡΠ»ΡΡΡΡΠ½ΠΎ-ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΎΠ±ΡΡΠΈΠΉ ΠΏΡΠ΅ΠΆΠ½ΠΈΡ
Π»Π΅Ρ ΠΏΠ΅ΡΠ΅ΡΡΠ°Π΅Ρ Π±ΡΡΡ Π·Π½Π°ΠΊΠΎΠ²ΡΠΌ, ΠΈ ΠΎΡ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³Π° ΡΡΠ΅Π±ΡΡΡΡΡ Π½Π΅ΡΡΠ°Π½Π΄Π°ΡΡΠ½ΡΠ΅ ΡΠ΅ΡΠ΅Π½ΠΈΡ, ΡΠ΅Π°Π»ΡΠ½ΡΠ΅ Π΄Π΅Π»Π° ΠΈ ΠΏΠΎΡΡΡΠΏΠΊΠΈ, ΠΏΠΎΠΌΠΎΠ³Π°ΡΡΠΈΠ΅ ΠΈΠ·Π±Π΅ΠΆΠ°ΡΡ ΠΏΠΎΠ²ΡΠΎΡΡΠ΅ΠΌΠΎΡΡΠΈ ΠΈ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ
Π½Π΅ΡΠ΄Π°Ρ. ΠΠ»Ρ ΡΡΠΎΠ³ΠΎ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡ Π²ΡΡΠΎΠΊΠ°Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π½ΠΎΡΡΡ, ΠΊΡΠ»ΡΡΡΡΠ° ΡΡΠ²ΡΡΠ² ΠΈ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΉ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠΈΠ΅ ΠΆΠΈΠ²ΠΎΠ΅, ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ ΡΡΠ°ΡΡΠ½ΠΈΠΊΠΎΠ² ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°, ΡΠ΅Π»ΡΡ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΡΠ΅ΠΆΠ΄Π΅ Π²ΡΠ΅Π³ΠΎ ΡΡΠ²Π΅ΡΠΆΠ΄Π΅Π½ΠΈΠ΅ ΠΏΠΎΠ΄Π»ΠΈΠ½Π½ΡΡ
ΠΌΠΎΡΠ°Π»ΡΠ½ΠΎ-Π½ΡΠ°Π²ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΈ Π΄ΡΡ
ΠΎΠ²Π½ΡΡ
ΡΠ΅Π½Π½ΠΎΡΡΠ΅ΠΉ. ΠΠ°ΡΡΠ½Π°Ρ Π½ΠΎΠ²ΠΈΠ·Π½Π°. Π Π°ΡΠΊΡΡΡΡ ΠΊΡΠ»ΡΡΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΎΡΠ½ΠΎΠ²Ρ ΡΠ°Π±ΠΎΡΡ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΠΎΠ»Π»Π΅ΠΊΡΠΈΠ²Π° Π²ΡΠ·Π°. ΠΠΎΠΊΠ°Π·Π°Π½ ΠΌΠΈΡΠΎΠ²ΠΎΠ·Π·ΡΠ΅Π½ΡΠ΅ΡΠΊΠΈΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ, ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΡΡΠ΅Π³ΠΎ ΡΠ°ΠΌΠΎΠ°ΠΊΡΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ Π»ΠΈΡΠ½ΠΎΡΡΠΈ. ΠΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠ°Ρ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ. ΠΡΠ΄Π΅Π»Π΅Π½Ρ ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΠ΅ ΠΌΠ΅ΡΡ ΠΏΠΎ ΠΏΡΠ΅ΠΎΠ΄ΠΎΠ»Π΅Π½ΠΈΡ ΠΊΡΠΈΠ·ΠΈΡΠ° Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠ΅ ΠΊΠ°Π΄ΡΠΎΠ² Π²ΡΡΡΠ΅ΠΉ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠ²Π°Π»ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ: Π²ΡΡΠ°Π±ΠΎΡΠΊΠ° ΡΡΡΠ°ΡΠ΅Π³ΠΈΠΈ Π΄Π°Π½Π½ΠΎΠΉ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ Π² ΡΠ΅Π»ΠΎΠΌ ΠΈ ΡΠ°ΠΊΡΠΈΠΊΠΈ Π΅Π΅ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ Π² ΠΊΠΎΠ½ΠΊΡΠ΅ΡΠ½ΡΡ
Π²ΡΠ·Π°Ρ
Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΡΠΈΠ½ΡΠΈΠΏΠ° ΠΎΠ±ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΎΠ³Π»Π°ΡΠΈΡ; ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠΊΡΡΡΠΎΡΡΠΈ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ² ΡΠΈΠ½Π°Π½ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΡΠ·Π° ΠΈ ΠΎΡΡΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΏΠΎ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎ-Ρ
ΠΎΠ·ΡΠΉΡΡΠ²Π΅Π½Π½ΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π΅Π³ΠΎ ΠΊΠΎΠ»Π»Π΅ΠΊΡΠΈΠ²Π°; ΠΎΡΠΌΠ΅Π½Π° ΠΏΡΠ°ΠΊΡΠΈΠΊΠΈ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Β«Π½ΠΎΠ²ΡΡ
ΠΏΠΎΠΊΠΎΠ»Π΅Π½ΠΈΠΉ ΡΡΠ°Π½Π΄Π°ΡΡΠΎΠ²Β», Π²Π»Π΅ΠΊΡΡΠΈΡ
Π·Π° ΡΠΎΠ±ΠΎΠΉ Π»Π°Π²ΠΈΠ½Ρ Π±ΡΠΌΠ°Π³ΠΎΡΠ²ΠΎΡΡΠ΅ΡΡΠ²Π°; Π½Π°ΡΡΡΠ΅Π½ΠΈΠ΅ ΡΡΠ΅Π±Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠ°ΠΊΡΠΈΠΊΠΎΠΉ Π² ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΡ
ΡΡΡΠ΅ΠΆΠ΄Π΅Π½ΠΈΡΡ
ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠΈΠΏΠΎΠ² ΠΈ Π²ΠΈΠ΄ΠΎΠ²; ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΎΠ΄Π½ΠΎΠ³ΠΎΠ΄ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΈΠΊΠ»Π° ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΠΊΠ°ΠΊ Π²ΡΠΎΡΠΎΠ³ΠΎ Π²ΡΡΡΠ΅Π³ΠΎ; ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ Π°ΠΊΠ°Π΄Π΅ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠ±ΠΎΠ΄ ΡΠ½ΠΈΠ²Π΅ΡΡΠΈΡΠ΅ΡΠ°ΠΌ ΠΈ Π΄Ρ. ΠΡΠΎΠ±ΠΎ ΠΏΠΎΠ΄ΡΠ΅ΡΠΊΠ½ΡΡΠ° Π²Π°ΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΎΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΡΡΠ΅Π½ΠΈΡ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ Β«ΡΠΊΠΎΠ»Π° β Π²ΡΠ·Β» ΠΊΠ°ΠΊ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΌΠΎΡΠΈΠ²Π°ΡΠΈΠΈ ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΡΠ΄
A guide to pre-processing high-throughput animal tracking data
1. Modern, high-throughput animal tracking studies collect increasingly large volumes of data at very fine temporal scales. At these scales, location error can exceed the animalβs step size, leading to mis-estimation of key movement metrics such as speed. βCleaningβ the data to reduce location errors prior to analyses is one of the main ways movement ecologists deal with noisy data, and has the advantage of being more scalable to massive datasets than more complex methods. Though data cleaning is widely recommended, and ecologists routinely consider cleaned data to be the ground-truth, inclusive uniform guidance on this crucial step, and on how to organise the cleaning of massive datasets, is still rather scarce. 2. A pipeline for cleaning massive high-throughput datasets must balance ease of use and computationally efficient signal vs. noise screening, in which location errors are rejected without discarding valid animal movements. Another useful feature of a pre-processing pipeline is efficiently segmenting and clustering location data for statistical methods, while also being scalable to large datasets and robust to imperfect sampling. Manual methods being prohibitively time consuming, and to boost reproducibility, a robust pre-processing pipeline must be automated. 3. In this article we provide guidance on building pipelines for pre-processing high-throughput animal tracking data in order to prepare it for subsequent analysis. Our recommended pipeline, consisting of removing outliers, smoothing the filtered result, and thinning it to a uniform sampling interval, is applicable to many massive tracking datasets. We apply this pipeline to simulated movement data with location errors, and also show a case study of how large volumes of cleaned data can be transformed into biologically meaningful βresidence patchesβ, for quick biological inference on animal space use. We use calibration data to illustrate how pre-processing improves its quality, and to verify that the residence patch synthesis accurately captures animal space use. Finally, turning to tracking data from Egyptian fruit bats (Rousettus aegyptiacus), we demonstrate the pre-processing pipeline and residence patch method in a fully worked out example. 4. To help with fast implementation of standardised methods, we developed the R package atlastools, which we also introduce here. Our pre-processing pipeline and atlastools can be used with any high-throughput animal movement data in which the high data-volume combined with knowledge of the tracked individualsβ movement capacity can be used to reduce location errors. The atlastools function is easy to use for beginners, while providing a template for further development. The use of common pre-processing steps that are simple yet robust promotes standardised methods in the field of movement ecology and leads to better inferences from data
Effect of kinematics on final state interactions in (e,e'p) reactions
Recent data from experiment E97-006 at TJNAF using the 12C(e,e'p) reaction at
very large missing energies and momenta are compared to a calculation of
two-step rescattering.
A comparison between parallel and perpendicular kinematics suggests that the
effects of final state interactions can be strongly reduced in the former case.Comment: 10 pages, 3 figures, submitted to LP
Measurement of the Induced Proton Polarization P_n in the 12C(e,e'\vec{p}) Reaction
The first measurements of the induced proton polarization, P_n, for the 12C
(e,e'\vec{p}) reaction are reported. The experiment was performed at quasifree
kinematics for energy and momentum transfer (\omega,q) \approx (294 MeV, 756
MeV/c) and sampled a recoil momentum range of 0-250 MeV/c. The induced
polarization arises from final-state interactions and for these kinematics is
dominated by the real part of the spin-orbit optical potential. The
distorted-wave impulse approximation provides good agreement with data for the
1p_{3/2} shell. The data for the continuum suggest that both the 1s_{1/2} shell
and underlying l > 1 configurations contribute.Comment: 5 pages LaTeX, 2 postscript figures, accepted by Physical Reveiw
Letter
Glucocorticoids alleviate intestinal ER stress by enhancing protein folding and degradation of misfolded proteins
Endoplasmic reticulum (ER) stress in intestinal secretory cells has been linked with colitis in mice and inflammatory bowel disease (IBD). Endogenous intestinal glucocorticoids are important for homeostasis and glucocorticoid drugs are efficacious in IBD. In Winnie mice with intestinal ER stress caused by misfolding of the Muc2 mucin, the glucocorticoid dexamethasone (DEX) suppressed ER stress and activation of the unfolded protein response (UPR), substantially restoring goblet cell Muc2 production. In mice lacking inflammation, a glucocorticoid receptor antagonist increased ER stress, and DEX suppressed ER stress induced by the N-glycosylation inhibitor, tunicamycin (Tm). In cultured human intestinal secretory cells, in a glucocorticoid receptor-dependent manner, DEX suppressed ER stress and UPR activation induced by blocking N-glycosylation, reducing ER Ca2+ or depleting glucose. DEX up-regulated genes encoding chaperones and elements of ER-associated degradation (ERAD), including EDEM1. Silencing EDEM1 partially inhibited DEX's suppression of misfolding-induced ER stress, showing that DEX enhances ERAD. DEX inhibited Tm-induced MUC2 precursor accumulation, promoted production of mature mucin, and restored ER exit and secretion of Winnie mutant recombinant Muc2 domains, consistent with enhanced protein folding. In IBD, glucocorticoids are likely to ameliorate ER stress by promoting correct folding of secreted proteins and enhancing removal of misfolded proteins from the ER
A Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron
Recoil proton polarization observables were measured for both the p(,e) and d(,en reactions at two values of Q using a newly commissioned proton
Focal Plane Polarimeter at the M.I.T.-Bates Linear Accelerator Center. The
hydrogen and deuterium spin-dependent observables and
, the induced polarization and the form factor ratio
were measured under identical kinematics. The deuterium and
hydrogen results are in good agreement with each other and with the plane-wave
impulse approximation (PWIA).Comment: 9 pages, 1 figure; accepted by Phys. Rev. Let
Measurement of the recoil polarization in the p (\vec e, e' \vec p) pi^0 reaction at the \Delta(1232) resonance
The recoil proton polarization has been measured in the p (\vec e,e'\vec p)
pi^0 reaction in parallel kinematics around W = 1232 MeV, Q^2 = 0.121 (GeV/c)^2
and epsilon = 0.718 using the polarized c.w. electron beam of the Mainz
Microtron. Due to the spin precession in a magnetic spectrometer, all three
proton polarization components P_x/P_e = (-11.4 \pm 1.3 \pm 1.4) %, P_y =
(-43.1 \pm 1.3 \pm 2.2) %, and P_z/P_e = (56.2 \pm 1.5 \pm 2.6) % could be
measured simultaneously. The Coulomb quadrupole to magnetic dipole ratio CMR =
(-6.4\pm 0.7_{stat}\pm 0.8_{syst}) % was determined from P_x in the framework
of the Mainz Unitary Isobar Model. The consistency among the reduced
polarizations and the extraction of the ratio of longitudinal to transverse
response is discussed.Comment: 5 pages LaTeX, 1 table, 2 eps figure
The Impact of Major Events on the Lives of Family Caregivers of Children with Disabilities
Copyright 1996 Families International, Inc.The authors examine the family caregiving experience among families with children with severe emotional
disabilities from a perspective that recognizes the importance of the family's views and feelings. This viewpoint anticipates
the occurrence of both positive and negative experiences and seeks to illuminate the caregiving process from the perspective
of outcomes achieved. Family caregivers of 164 children with serious emotional disorders were asked to identify
major pleasant and stressful events that had occurred in the past 12 months. The most frequently described pleasant
events related to children's behavior, school activities, and interactions with professionals and friends. Frequently described
problem areas included children's behavior, professionals/services, and difficulty with school. The impact of these
pleasant and stressful events was examined with respect to caregivers' perceived well-being: (I) overall stress, (2) the
ability to fulfill responsibilities, and (3) pleasure experienced in various life domains. Implications of the study findings
for supporting family caregivers in their roles are discussed
A Measurement of the Electric Form Factor of the Neutron through at (GeV/c)
We report the first measurement of the neutron electric form factor
via using a solid polarized target. was
determined from the beam-target asymmetry in the scattering of longitudinally
polarized electrons from polarized deuterated ammonia, ND. The
measurement was performed in Hall C at Thomas Jefferson National Accelerator
Facility (TJNAF) in quasi free kinematics with the target polarization
perpendicular to the momentum transfer. The electrons were detected in a
magnetic spectrometer in coincidence with neutrons in a large solid angle
segmented detector. We find at (GeV/c).Comment: Latex2e 5 pages, 3 figure
Realistic Model of the Nucleon Spectral Function in Few- and Many- Nucleon Systems
By analysing the high momentum features of the nucleon momentum distribution
in light and complex nuclei, it is argued that the basic two-nucleon
configurations generating the structure of the nucleon Spectral Function at
high values of the nucleon momentum and removal energy, can be properly
described by a factorised ansatz for the nuclear wave function, which leads to
a nucleon Spectral Function in the form of a convolution integral involving the
momentum distributions describing the relative and center-of-mass motion of a
correlated nucleon-nucleon pair embedded in the medium. The Spectral Functions
of and infinite nuclear matter resulting from the convolution formula
and from many-body calculations are compared, and a very good agreement in a
wide range of values of nucleon momentum and removal energy is found.
Applications of the model to the analysis of inclusive and exclusive processes
are presented, illustrating those features of the cross section which are
sensitive to that part of the Spectral Function which is governed by
short-range and tensor nucleon-nucleon correlations.Comment: 40 pages Latex , 16 ps figures available from the above e-mail
address or from [email protected]
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