bluuebunny/crossref_metadata_2025 huggingface dataset:
Momentos de exploración e ilustración en la determinación de circunferencias en futuros docentes de educación secundaria
Authors: Abaurrea Jaione , Lasa Aitzol , Wilhelmi Miguel
Published: December 2019

Se analiza la actividad matemática de estudiantes del Máster Universitario en Profesorado de Educación Secundaria, especialidad en Matemáticas, en una situación didáctica destinada al estudio de circunferencias. En las tareas a resolver por los alumnos se estudian los métodos de geometría analítica para la representación de circunferencias y las propiedades de estas figuras mediante una metodología de exploración e ilustración. Primero se identifican los conocimientos previos de los estudiantes y después se ponen a su disposición herramientas en distintos soportes para afianzar y desarrollar dichos conocimientos. El proceso de estudio evoluciona mediante la interacción de dos soportes materiales: uno, el software dinámico GeoGebra; otro, el «lápiz y papel». Se extraen conclusiones sobre la importancia de la interacción entre los medios en la adquisición de conocimientos y su implicación en las intervenciones docentes previstas.
Development of Optimal Thresholding Technique for Shape and Size Detection for Through the wall Radar Imaging System
Authors: Singh Akhilendra Pratap , Dwivedi Smrity , Jain Pradeep Kumar
Published: December 2019

Through-the-wall radar (TWR) images of stationary target behind a wall are subject to strong stationary and non-stationary clutter which obscures the target position and size in the image. Stationary clutters are present due to strong reflection from the wall and non-stationary clutter occurs due to multipath, noise, etc. A lot of work has been reported for mitigating stationary clutter successfully for various real scenarios. However, for mitigating nonstationary clutter various authors have reported their work in this field but any concrete result has not been reported so far. Hence, there is a need for an optimal methodology to mitigate non-stationary clutter in TWR images for achieving a high-quality image representing the target position, shape and its size. Till now it is difficult to achieve shape detection of the target from the TWR system. Therefore, in this paper, a novel optimal thresholding technique is proposed to mitigating non-stationary clutter for further enhancement on shape detection of a target using curve fitting and genetic algorithm. The proposed methodology gives a satisfactory result and can prove to be a powerful technique for minimising clutter.
Correlates of Professional Obsolescence among Researchers
Authors: Singh Ajay Kumar , Kumar Rajender
Published: December 2019

Obsolescence setting in the employees of the organisations significantly hampers the organisational productivity. An empirical investigation of the associated factors and the efforts to minimise them help in designing strategies to deal with obsolescence and maintain optimum effectiveness of the organisation. As an attempt in this direction, the present study aimed at exploring the role of literature-suggested correlates of obsolescence in case of researchers in an Indian government organisation. The sample included 200 participants (146 males and 54 females) working as researchers in government scientific institutions with service experience ranging from two to 30 years. The participants were administered with standardised measures of obsolescence, work engagement, work motivation, resistance to change, organisational climate, human resource management (HRM) Policies and Practices, and Self Esteem. The obtained data were analysed with correlation and regression analyses. The findings revealed that in the target population obsolescence due to both organisational and individual level factors was found significantly and positively correlated with amotivation and resistance to change; whereas, negatively correlated with work engagement, organisational climate, HRM policies and practices, intrinsic motivation, and self-esteem. Regression analyses indicated that adequate recognition of efforts, better training and development, qualitative work availability (pressure), and enhanced concern to optimally maintain the intrinsic motivation and dedication of employees are significant factors for keeping check on obsolescence. The findings are explained and discussed in details.
On a differential constraint in the continuum theory of growing solids
Authors: Murashkin Eugenii Valeryevich , Radayev Yuri Nikolaevich
Published: December 2019

Предлагается один общий принцип постановки граничных условий в краевых задачах механики растущих тел. При выводе определяющих соотношений на поверхности наращивания используется аппарат алгебры рациональных инвариантов. Проведен вывод различных вариантов физически непротиворечивых дифференциальных ограничений на поверхности наращивания. Полученные условия справедливы для весьма широкого круга материалов и метаматериалов. Для использования сформулированных дифференциальных ограничений в конкретных приложениях необходима их экспериментальная идентификация. По этой причине полученные результаты могут служить общей основой в прикладных исследованиях по механике растущих тел.
Mathematical modeling and prediction of the effectiveness of surgical treatment in surgery of the spine and pelvic complex
Authors: Kossovich Leonid Yur'evich , Kharlamov Alexander Vladimirovich , Lysunkina Yuliya Vladimirovna , Shulga Alexey E.
Published: December 2019

На основе изучения литературы, посвященной оценке качества оперативного лечения в реконструктивной хирургии позвоночно-тазового комплекса можно сделать вывод, что для прогнозирования качества оперативного лечения, как правило, применяется множественная линейная или логистическая регрессия, дерево решений. Реже применяются нейронные сети.
Прогнозирование выполняется на основе сравнения до- и послеоперационного состояния больного, оцениваемого по различным порядковым и количественным шкалам в результате опроса пациента.
При сравнительно небольшом количестве анализируемых случаев заболевания (несколько десятков или сотен) и незначительном количестве показателей (не более двух-трех десятков) применение нейронных сетей представляется преждевременным по двум причинам: небольшое количество данных позволяет анализировать их классическими методами математической статистики, и выявление зависимостей на данном этапе требует постоянного «ручного» вмешательства с учетом оценок и взаимосвязей из предметной области.
Применение методов статистического анализа к данным о лечении застарелой травмы показало наличие стандартных проблем для медицинских данных. Это представление исходной информации в номинальной или порядковой шкалах, субъективный характер некоторых показателей, а также взаимозависимость представленных характеристик, что снижает качество исследования.
Поиск целевой функции, характеризующей качество оперативного лечения, показал неоднозначность решения этой задачи даже для узкоспециализированной ситуации.
Объективно присутствующие взаимосвязи также выявило обусловили количество проблем, особенно связанных с выбором типа оперативного лечения, которое в большей степени определяется опытом хирурга.
На основе проведенного исследования было предложено строить модель прогноза качества оперативного лечения с учетом экспертных оценок в виде прогнозного дерева с рекомендуемыми вариантами хирургического лечения и статистическом прогнозе, основанном на имеющемся опыте. Предполагается, что модель будет динамической с обратной связью и иметь возможность самообновления.
Для прогнозирования качества оперативного лечения в реконструктивной хирургии позвоночно-тазового комплекса целесообразно применять дерево прогноза, позволяющее рекомендовать тип операции для конкретного случая повреждения или заболевания и рассчитывающего прогнозные значения показателей качества жизни.
Моделирование напряженного состояния перфорированного цементного кольца, примыкающего к скважине с трещиной гидроразыва пласта
Authors: Киреев Тимур Фаритович , Kireev Timur Faritovich , Булгакова Гузель Талгатовна , Bulgakova Guzel Talgatovna
Published: December 2019

Проведено моделирование напряженного состояния перфорированного цементного кольца, примыкающего к скважине с трещиной гидроразрыва пласта. Для вычисления порового давления жидкости используется модель фильтрации несжимаемого флюида. Для вычисления напряженного состояния цементного кольца используется модель линейно-упругого тела и метод конечных объемов с многоточечной аппроксимацией напряжений. Проведена верификация численной модели с помощью сопоставления модельного расчета с расчетом в открытом пакете моделирования Fenics.
Показано, что максимальное значение напряжения Мизеса приходится на зону перфораций на стыке цементного кольца и эксплуатационной колонны, а наличие трещины гидроразрыва пласта может снижать напряжение цементного кольца.
هۆكار و مەبەستەكانى مەزراندنى ديمەنى سێكسيى لە رۆمانى كورديدا
Authors: Saeed Jalal A.
Published: December 2019

گومانى تێدا نييە كە سێكس يەكەم و دواهەمين ئامرازى سەرجەم بونەوەرانى سەر زەوييە بۆ نەوە خستنەوە و بەردەوامبون لە ژياندا، جگە لەمەش هۆيەكى گرنگە بۆ ئاراميى و ئاسودەيى، واتە لە غيابى سێكسدا دۆخێكى ئاڵۆز و نادروست لە ژيانى بونەوەراندا دێتە ئاراوە. هەروەها گومانيشى تێدا نييە كە ئەدەبيش ئاوێنەى كۆمەڵ و ڕەنگدانەوەى واقيعە بە هەمو لايەنە چاك و خراپەكانييەوە، جوان و ناشرينييەكانييەوە، ڕێپێدراو و قەدەغەكراوەكانييەوە، بۆيە دەبينين پڕۆسە و پەيوەندى سێكسيش لە ئەدەبياتى زارەكى و نوسراوى هەمو ميللەتانى دنيادا بە پێى تايبەتمەنديى و داب و نەريتى هەر نەتەوە و كۆمەڵێك كەم تا زۆر ئاوڕى لێدراوەتەوە، لەناو ئەواندا ئەدەبى زارەكى و نوسراوى كوردييش لەم بوارەدا بەشداريى بەرچاوى هەيە، بە تايبەتييش لە ڕۆماندا، بەڵام لە بوارى لێكۆڵينەوەى ڕەخنەييدا كەمتر ئاوڕ لەو تێكستانە دراونەتەوە كە ديمەنى ئيرۆتيكييان تێدا مەزرێندراوە. ئەمەش بە بڕواى ئێمە هۆكارەكەى بۆ جۆرێك لە شەرم و ترس و كۆت و بەندى كۆمەڵايەتيى دەگەڕێتەوە، هەر لەبەر ئەوە؛ ئێمە لەم هەوڵە خاكەڕايانەى خۆماندا هەوڵمانداوە بە دواى ئەو هۆكار و پاڵنەرانەدا بگەڕێين كە وا لە ڕۆماننوس دەكەن هەمو هۆش و خەياڵ و ئاوەزى خۆى بگوشێت بۆ بنياتنانى ديمەنێك يان چەندەها ديمەنى سێكسيى بە شێوەيەك كە هەمو وردەكارييەكانى جەستە پيشانبدات.  لەم ڕوەوە سێ خاڵمان دەستنيشانكردووە كە تيايدا سێكس وەكو هۆكارێك بەكارهاتووە، ئەوانيش بريتيين لە (گوزارشتكردن، هێما، ئامانج).
كاريگه‌ریى شانۆى داستانى له‌سه‌ر شانۆى كوردی
Authors: Abdulqader Kaify A. , Bapir Zhilwan T.
Published: December 2019

ئه‌م توێژینه‌وه‌یه‌، تیشكێك ده‌خاته‌ سه‌ر تیۆری شانۆی داستانی نوسه‌ر و ده‌رهێنه‌ری ئه‌ڵمانی (پرتۆڵد برێخت)، كه‌ وه‌ك شێوازێك له‌سه‌ر شانۆی دڕامی توانی ئه‌م شێوازه‌ شانۆییه‌ بهێنێته‌ نێو بزوتنه‌وه‌ی شانۆی نوێی جیهانیی و، ببێته‌ قوتابخانه‌یه‌كی سه‌ربه‌خۆ له‌بواری شانۆدا له‌ سه‌رانسه‌ری جیهاندا ده‌نگبداته‌وه‌، جیهانی شانۆی عه‌ره‌بیی و كوردستانیش بۆته‌ سه‌رچاوه‌یه‌كی گرنگ و، تاكو ئێستاش كاركردن له‌سه‌ر ئه‌م تیۆرییه‌ شانۆییه‌ به‌رده‌وامه‌، هه‌روه‌ها له‌ بزوتنه‌وه‌ی شانۆی كوردیدا، هه‌ر له‌ ساڵانی حه‌فتاكانی سه‌ده‌ی ڕابردو تاكو ئه‌مڕۆ، چه‌ندین ده‌رهێنه‌ری كورد كاریان له‌سه‌ر ئه‌م شێوازه‌ شانۆییه‌ كردووه‌و، ڕه‌نگدانه‌وه‌و كاریگه‌رییه‌كی زۆری له‌سه‌ر بینه‌ری كوردیی هه‌بووه، چونكه‌ له‌ فه‌لسه‌فه‌ی (برێخت)دا مرۆڤ و ئه‌رك و مافه‌كانی جێی بایه‌خ و گرنگیپێدانن له‌ شانۆی داستانیدا، كه‌ شانۆیه‌كی فێركارییه‌ و، چه‌مكی نامۆبون له‌م شێوازه‌ی شانۆدا جێی بایه‌خپێدانه‌، دیواری چواره‌م له‌م شێوا‌زەی شانۆدا لابردراوه‌و، په‌یوه‌ندییه‌كی ڕاسته‌وخۆ له‌نێوان نمایشكاران و بینه‌ردا دروستبووه‌‌. بۆ به‌رێوه‌چوونی لێكۆڵینه‌وه‌كه‌مان به‌شێوه‌یه‌كی زانستی سه‌ره‌تا چه‌ند پرسیارێكمان خسۆته‌ڕو، كه له‌‌دوتوێی توێژینه‌وه‌كه‌دا وه‌ڵام مانداونه‌ته‌وه‌، وه‌كو ئایا ئه‌و شێوازه‌ی شانۆی جیهانییه‌ له‌نێو شانۆی كوردیدا ڕه‌نگیداوه‌ته‌وه‌؟ ئایا ئه‌و ڕه‌نگدانه‌وه‌یه‌ ڕه‌گه‌ز وته‌كنیكه‌كانی شانۆی گرتۆته‌وه‌؟ ئه‌و ده‌رهێنه‌ر وكاره‌ هونه‌رییانه‌ی ئه‌و شێوازه‌ی تێدا به‌رجه‌سته‌بووه‌ كێن وچین؟ ئایا بارودۆخی كوردستان هۆكار وڕێخۆشكه‌ر بووه‌ بۆ ئه‌و شێوازه‌؟ هتد، توێژینه‌وه‌كه‌مان له‌ دوبه‌ش پێكهاتووه‌، هه‌ر به‌شه‌ش چه‌ند ته‌وه‌رێكی له‌خۆگرتووه‌، له‌گه‌ڵ ئه‌نجام وناوی سه‌رچاوه‌كانی توێژینه‌وه‌كه‌.
پەيوەندييە كۆمەڵايەتييەكان لە ڕۆمانى كورديدا
Authors: Salih Salim R. , Awla Abdulla R.
Published: December 2019

ئه‌م توێژینه‌وه‌یه‌ هه‌وڵێكه‌ بۆ شیكردنه‌وه‌ی ڕۆڵی ڕۆمان له‌ به‌رجه‌سته‌كردنی په‌یوه‌ندییه‌  كۆمه‌ڵایه‌تییه‌كان و پیشاندانی واقیعی كۆمه‌ڵایه‌تی كۆمه‌ڵگه‌، به‌تایبه‌تیش كاریگه‌ری ئه‌و په‌یوه‌ندییه‌ ‌كۆمه‌ڵایه‌تییانه‌ له‌سه‌ر ڕه‌وشی گشتی تاك و كۆمه‌ڵگه‌وه‌, له‌سه‌ره‌تاشدا باسی كۆمه‌ڵناسی ئه‌ده‌ب كراوه‌ وه‌كو زانستێك بایه‌خ به‌ لایه‌نی كۆمه‌ڵایه‌تی ئه‌ده‌ب و له‌ناویشدا جه‌ختمان له‌سه‌ر كۆمه‌ڵناسی ڕۆمان كردۆته‌وه‌ له‌ڕوی تیۆرییه‌وه‌ لایه‌نه‌كانی باس كراوه‌، چونكه‌ باسكردن له‌ په‌یوه‌ندییه‌ كۆمه‌ڵایه‌تییه‌كان په‌یوه‌سته‌ به‌و بواره‌وه‌. دواتر په‌یوه‌ندییه‌ كۆمه‌ڵایه‌تییه‌كانی وه‌كو ( په‌یوه‌ندی هاوڕێیه‌تی و په‌یوه‌ندی خۆشه‌ویستی و په‌یوه‌ندی خزمایه‌تی) و ڕه‌نگدانه‌وه‌یان له‌ناو به‌شێك له‌ڕۆمانه‌ كوردیەکاندا دیاریكراوه‌و تیشكی خراوه‌ته‌ سه‌رو له‌ كۆتایشدا ئه‌نجام و لیستی سه‌رچاوه‌كان به‌رچاوخراوه‌. سنوری لێكۆڵینه‌وه‌كه‌ له‌نێوان ساڵانی (1961-1990)ە‌و، ڕۆمانه‌كانی ئه‌و ماوه‌یه‌ كاریان له‌سه‌ركراوه‌، ئه‌و كاركردنه‌ش زیاتر لایه‌نی بابه‌ت و ناوه‌رۆكی سیاسی و كۆمه‌ڵایه‌تی و ئابووری ...هتد، گرتۆته‌وه‌، به‌واتایه‌ی ناوه‌رۆك و ده‌رخستنی كێشه‌و گرفته‌كانی كۆمه‌ڵگه‌ چه‌قی لێكۆڵینه‌وه‌كه‌ پێكده‌هێنن و كه‌متر باس له‌ لایه‌نه‌ ته‌كنیكییه‌كان كراوه‌، مه‌گه‌ر ئه‌و كاته‌ی له‌ خزمه‌ت باسكردن بابه‌ته‌كه‌ بێت. له‌م ڕوانگه‌یه‌شه‌وه‌ هه‌وڵمانداوه‌ له‌ چه‌ند نمونه‌یه‌كی ڕۆمانی كوردیدا بابه‌ته‌ كۆمه‌ڵایه‌تییه‌كان ده‌ستنیشان بكه‌ین و ڕه‌نگدانه‌وه‌ی ئه‌و بابه‌ته‌ كۆمه‌ڵایه‌تییانه‌ له‌ناو ده‌قی ڕۆمانه‌كان و بۆچونی ڕۆماننوسان له‌هه‌مبه‌ر ئه‌و كێشه‌و گرفتانه‌ بخه‌ینه‌ڕو. هۆكاره‌كانی هه‌ڵبژاردنی ئه‌و بابه‌ته‌ زیاتر كاركردن بووه‌ له‌سه‌ر په‌یوه‌ندی ڕۆمان و كۆمه‌ڵگه‌، كه‌ ئه‌م باسه‌ش ده‌مانباته‌وه‌ سه‌ر باسی  كۆمه‌ڵناسی ڕۆمان وه‌كو لقێك له‌ لقه‌كانی كۆمه‌ڵناسی ئه‌ده‌ب. ئه‌م بابه‌تش له‌ ڕه‌خنه‌ی ڕۆمانی كوریدا و به‌تایبه‌تیش له‌ ئاسته‌ ئه‌كادیمییه‌كه‌ی به‌ژماره‌یه‌كی زۆر كه‌م كاری له‌سه‌ر كراوه‌. ئه‌و میتۆده‌ی كه‌ له‌ لێكۆڵینه‌وه‌كه‌ په‌یڕه‌وی لێكراوه‌ برییته‌ له‌ میتۆدی وه‌سفی شیكاری هه‌روه‌ها  له‌به‌ر ئه‌وه‌ی بابه‌تی لێكۆڵینه‌وه‌كه‌ له‌ناو بازنه‌ی كۆمه‌ڵناسی ڕۆمانه‌، بۆیه‌ له‌ ڕێڕه‌وی لێكۆڵینه‌وه‌كه‌ماندا سودمان له‌ میتۆدی كۆمه‌ڵایه‌تیش وه‌رگرتووه‌
Saleh Yousify, One of The Pioneers of Romantic Poetry in Behdinan
Authors: Ahmed Dewlet M.
Published: December 2019

This study examines the romantic poetry of one of the pioneers of this genre known in the area of ​​Badinan (Saleh Yousif). Saleh Yousif is taken as a model of poets of his time specifically in the area of ​​Badinan. It is the period that gathered the poets of South Kurdistan in general and the poets of the region of Badenin to especially study this new literary type of poetry called romance or doctrine of Romanticism. The living conditions and nature of life at that time were a major factor for the emergence of this poetic doctrine when the poet expressed his situation or a particular idea directly or indirectly so that the reader enjoys this type of poetry. This poetic doctrine had a special framework in terms of quality, principles and the core topics with the mentioned poet because it was related to his private life where he was composing poetry in many periods and of special events to be a model in the portrayal of these events and to gain the interest of readers to reach their goals. The importance of this study, on the one hand, is that it follows the analytical descriptive approach to include the characteristics and types of the texts of the Kurdish romantic literature. On the other hand, this research is to enrich the literature of this topic and assist researchers in the field of literature in general and the romantic doctrine in particular.
خودچالاكى لای مامۆستایانى زانكۆى كۆيە بەپێی هەندێک گۆڕاوى دیمۆگرافی
Authors: Mustafa Khalid I. , Rasul Jwan N. , Saadi Alan S.
Published: December 2019

ئامانجه‌كانی ئه‌م توێژینه‌وه‌ خۆی له‌دوو به‌ش ده‌بینێته‌وه‌، ئامانجی گشتی توێژینه‌وه‌كه‌، كه‌ بریتی یه‌ له‌زانینی ئاستی خودچالاكی مامۆستایانی زانكۆ، و ئامانجی تایبه‌تی كه‌ بریتییه‌ له‌ زانینی كاریگه‌ریی جیاوازی ڕه‌گه‌ز له‌سه‌ر ئاسته‌كه‌یان، ئینجا زانینى په‌یوه‌ندى خودچالاكی مامۆستایانى زانكۆ بۆ یه‌كێك له‌ گۆڕاوه‌ دیمۆگرافیه‌كانی ڕاپرسی توێژینه‌وه‌كه‌، كه‌بریتییه‌ له‌ گۆڕاوی بڕوانامه‌، بۆ به‌ده‌ستهێنانی ئه‌م ئامانجه‌ گشتی و تایبه‌تیانه‌ی توێژینه‌وه‌ی به‌رده‌ست، 72 مامۆستای زانكۆ به‌شێوه‌یه‌كی هه‌ڕه‌مه‌كی خۆبه‌خشانه‌ به‌شداریان كرد. بۆ كۆكردنه‌وی زانیاری توێژینه‌وه‌ی به‌رده‌ست ڕاپرسیه‌كی 10 بڕگه‌یی وه‌رگیراو به‌كارهات كه‌ 5 هه‌ڵبژاردنی هه‌یه‌، له‌به‌رامبه‌ر هه‌ر بڕگه‌یه‌ك به‌شێوه‌یه‌كی یه‌كسانی ئاماژه‌ی پێكرابو تاكو به‌شداربو به‌ئاسانی بتوانێت ئه‌و وه‌ڵامه‌ هه‌ڵبژێرێت كه‌له‌گه‌ڵ بۆچونی تایبه‌تی خۆی ده‌گونجێت، بۆ دڵنیایی بون له‌به‌های ڕاستگۆیی و جێَگیری  ئامرازی كۆكردنه‌وه‌ی زانیاری توێژینه‌وه‌كه‌، ڕاپرسیه‌كه‌ له‌ماوه‌یه‌كی كورتدا كه‌ له‌ڕۆژێك زیاتر نه‌بو به‌سه‌ر به‌شێك له‌ نمونه‌ی توێژینه‌وه‌كه‌ دابه‌شكرا پاش كۆكردنه‌وه‌ی ڕاپرسیه‌كان و دابه‌زاندنی بۆ سه‌ر به‌رنامه‌ی ئاماری تایبه‌ت، داتاكان شیكردنه‌وه‌یان بۆ ئه‌نجامدرا، پاشان ده‌ركه‌وت كه‌ به‌هاكه‌یان له‌ئاستێكی گونجاودایه‌ به‌مه‌ش تویژینه‌وه‌كه‌ به‌رده‌وامی پێدرا بۆ دابه‌شكردن به‌سه‌ر نمونه‌ی كۆتایی . پاش كۆكردنه‌وه‌ی زانیاری له‌ نمونه‌ی كۆتای تو‌ێژینه‌وه‌كه‌ ئینجا شیكردنه‌وه‌یان به‌ به‌رنامه‌ی spss  هه‌گبه‌ی ئاماری بۆ زانسته‌ كۆمه‌ڵایه‌تییه‌كان كه‌ تایبه‌ته‌ به‌ بواری ده‌رونی و په‌روه‌رده‌ی كۆمه‌ڵایه‌تی مرۆڤایه‌تی، ئه‌نجامه‌كان ده‌ریانخست كه‌ ئاستی گشتی خودچالاكی په‌روه‌رده‌یی مامۆستایانی زانكۆ له‌ئاستێكی به‌رزدایه‌، به‌ڵام هیچ جیاوازیه‌كی به‌ڵگه‌داری ئاماریی له‌ ئاستی خودچالاكی مامۆستایان ده‌رنه‌كه‌وت له‌نێوان هه‌ردوو ڕه‌گه‌زی جیاوازی نێر ومێی به‌شداربوانی توێژینه‌وه‌كه‌، هه‌رچه‌نده‌ ئه‌نجامەکانی توێژینه‌وه‌كه‌ ئاماژه‌ به‌وه‌ده‌كه‌ن كه‌، ئاستی خودچالاكی ڕه‌گه‌زی مێ ئاسته‌كه‌یان به‌رزرتر بو به‌ڵام به‌ڵگه‌داری ئاماریی نه‌بوو. له‌كۆتایی ئامانجە تایبه‌تیه‌كان ده‌ریانخست كه‌ په‌یوه‌ندییه‌كی نه‌رێینی له‌نێوان بڕوانامه‌ وئاستی خودچالاكی په‌روه‌ده‌ییان هه‌یه‌، واته‌ هه‌رچه‌نده‌ بڕوانامه‌ به‌رزتر بێت ئاستی خودچالاكیان نزمتره‌، به‌ڵام ئه‌م په‌یوه‌ندییه‌ له‌ئاستی به‌ڵگه‌داری ئاماریی نه‌بو. له‌کۆتایی وله‌ژێر ڕۆشنایی ئه‌نجامه‌كان چه‌ندین پیشنیاز و ڕاسپارده‌ پێشكه‌شكران.
هه‌نگاوه‌كانی نوسینی ئه‌ده‌بی منداڵان
Authors: Azeez Ranjdar A.
Published: December 2019

ئه‌م توێژینه‌وه‌یه‌ به‌ناونیشانی "هه‌نگاوه‌كانی نوسین له ‌ئه‌ده‌بی منداڵان"‌ دا، به‌سه‌ر نوسه‌ری ئه‌ده‌بی منداڵان (كازم كۆیی)دا خستومانه‌ته ‌ڕوو، وه‌ك نوسه‌رێكی ئه‌زمووندار و پڕ به‌رهه‌می ئه‌م بواره‌، به‌سه‌ر سێ به‌شی په‌یوه‌ست به‌یەكتر دابه‌شمان كردووه‌ و هه‌وڵمانداوه‌ سه‌رجه‌م خاسیه‌ت و تایبه‌تمه‌ندییه‌كانی هه‌ریه‌ك له‌م به‌شانه‌ به‌وردی و به‌شێوازێكی زانستییانه‌ بخه‌ینه‌ڕوو‌، له‌ به‌شی یه‌كه‌م دا هاتوین سه‌رجه‌م ئه‌و هه‌نگاوانه‌مان باسكردووه‌ كه‌ پێویسته‌ نوسه‌ر به‌ر له‌نوسین په‌یڕه‌ویان لێ بكات، ناومان ناوه‌ (هه‌نگاوه‌كانی به‌ر له‌وسین) تیایدا باسی ئه‌و تایبه‌‌تمه‌ندییانه‌مان كردووه‌ كه‌ پێویسته‌ به‌ر له‌نووسین له‌خودی ‌نوسه‌ردا بوونیان هه‌بێت و له‌نوسینه‌كانیدا ڕه‌نگ بداته‌وه‌‌. له‌ به‌شی دووه‌م دا ئه‌و هه‌نگاوانه‌ باسكراون‌، كه‌ پێویسته‌ نوسه‌ر له‌ نوسینی ده‌قه‌كه‌یدا پێڕه‌ویان لێ بكات، ناومان ناوه‌ (هه‌نگاوه‌كانی كاتی نوسین) و ئه‌و تایبه‌تمه‌ندییانه‌ ده‌گرێته‌وه،‌ كه‌ په‌یوه‌سته‌ به‌ په‌یوه‌ندی و كاركردنی نوسه‌ر له‌گه‌ڵ ئه‌و ده‌قه‌ی كه‌ ده‌یه‌وێت كاری له‌سه‌ربكات. له‌به‌شی سێیه‌مدا: (هه‌نگاوه‌كانی دوای نوسین دێن)، كه‌ خۆی له‌پێداچونه‌وه‌ و وێنه‌كێشانی نێو ده‌قه‌كان ده‌بینێته‌وه‌؛ هه‌موو ئه‌و هه‌نگاوانه‌ش ده‌بن به‌ ڕێچكه‌ و سه‌ره‌تایه‌كی باشی نوسین بۆ تازه‌ نوسه‌ر و بگره‌ ئه‌و نوسه‌رانه‌شی كه‌ ئه‌زموونێكی درێژیان هه‌یه‌ له‌بواری نوسینی منداڵاندا، كه‌ ئامانج لێی سودگه‌یاندنه‌ به‌ گشت نوسه‌رێكی ئه‌ده‌بی منداڵان له‌نێویاندا تازه‌ نوسه‌ران. كه‌ ده‌كرێ له‌نوسینه‌كانیاندا هه‌نگاو به‌ هه‌نگاو له‌سه‌ری بڕۆن و پێڕه‌وی لێ بكه‌ن، تاوه‌كو لانی كه‌م وه‌ك ‌نوسه‌ری ئه‌ده‌بی منداڵان هه‌نگاوبنێن، هه‌موو ده‌قێكی باشی ئه‌ده‌بی منداڵانیش سود و قازانجێكی باش ده‌گه‌یه‌نێت به‌ منداڵ و هه‌رزه‌كاران، كه‌ ئاینده‌ی وڵاتیان له‌سه‌ر بنیاد ده‌نرێت.
The Effectiveness of Problem Based Learning Method on Students’ Achievement in An Analog Electronics Course at Palestine Polytechnic University
Authors: Arman Abdallah Moh’d
Published: December 2019

This study, undertaken at the Palestine Polytechnic University in Palestine, describes how problem-based learning (PBL) affects the Students’ Achievement in ‘analog electronics course’. Problems were designed to match real-life situations. Data of the experimental group learning outcome effects, were compared.. It was found that students who followed the PBL method learned to do research, learned better how to work in groups and developed greater confidence. Also what they learned was more of a practical value and they had more positive attitudes and reflected more. This research is in response to the real need to address gaps between employer expectations and higher education outcomes in Palestine.

 In this study, an experimental group of (16) students was examined after studying a course using PBL approach. The students’ achievement was examined before and after the experiment. The research results proved that there is a significant increase in gain in achievement. The PBL has achieved efficiency greater than (80%) in achievement. Also, the PBL has achieved efficiency greater than (1.2) measured with respect to Black’s Gain Ratio in achievement.  Also, PBL has achieved efficiency greater than (0.6) measured with respect to McGugian’s Gain Ratio in achievement. The PBL has achieved larger effect size (more than 0.14) on achievement.
Risk Factors for Ulcerative Colitis in Shahrekord, Iran: A Case-Control Study
Authors: Gheibipour Hamid , Rahimian Ghorbanali , Ahmadi Ali
Published: December 2019

Background and aims: Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) which involves the rectum and colonic mucosa, and is often constantly expanding. Few data are available on risk factors in Chaharmahal and Bakhtiari province. Therefore, the aim of this study was to investigate the association between potential risk factors and UC in Shahrekord. Methods: A case-control study was conducted on patients diagnosed with UC. Overall, 27 new cases of UC and 54 healthy controls in the age range of 20–80 years were studied. Participants were recruited from Pathologic Centers in Shahrekord in 2018. Chi-square test and t test and were used. Logistic regression model was employed to analyze the association between risk factors and UC disease. Results: The mean age at diagnosis was 41.74 years (SD: 7.16 years) and 44.94 years (SD: 6.67 years) for case and control subjects, respectively. Moreover, univariate and multiple odds ratio (OR) showed that there was no significant association between UC and any of the risk factors including gender, marital status, education, diastolic blood pressure, history of diabetes, history of hypertension, permanent use of piped water, night shift work, history of thyroid diseases, depression, history of fatty liver disease, history of kidney stones, and sleep time and wake-up time in the morning. Conclusion: Generally, no significant association was observed between UC and the variables in the present study. Thus, further studies with larger sample size are necessary to better understand the other risk factors and environmental determinants of UC.
Prevalence of Obesity and Hypertension and Related Factors among Bank Employees in Zahedan, 2017
Authors: Montazerifar Farzaneh , Karajibani Mansour , Abbasi Mazaher , Bolouri Ahmad
Published: December 2019

Background and aims: Obesity and hypertension are the major threats to health in a sedentary lifestyle and stressful jobs. The bank employees have sedentary jobs with high mental stress. The aim of this study was to determine the prevalence of hypertension and obesity and related factors among bank employees in Zahedan, located in Sistan and Baluchistan province, Iran. Methods: In this cross-sectional study, 350 employees aged 23 to 57 years were randomly selected out of 15 bank branches from December 2016 to February 2017. An information form including demographic data (i.e., age, education levels, experience years in the banking profession, and physical activity) was completed for each participant. Body mass index (BMI) was assessed for the determination of general obesity. In addition, waist circumference (WC) and waist-to-height ratio (WHtR) were measured for the evaluation of abdominal obesity. Two recordings of blood pressure (BP) were obtained in a sitting position. Finally, a multivariate logistic regression analysis was used to examine the independent predictors of hypertension. Results: The prevalence of pre-hypertension and hypertension were 33.1% and 61.1%, respectively. Further, the rates of overweight and obesity were 49.1% and 10.3%, respectively. Furthermore, elevated WC and high WHtR were 20.9% and 59.4%, respectively. Based on the results, the prevalence of obesity and hypertension increased significantly by aging. Conclusion: In general, the results of the study showed that the prevalence of overweight and hypertension among bank employees was high compared to the general population. Thus, periodic screening is recommended for an early determination of hypertension.
Investigating the Effect of Cognitive and Sensorimotor Exercises on the Functional Balance of the Elderly
Authors: Shaykh Mahmoud , Ayazi Vanani Zinat , Bagherzadeh Fazllolah
Published: December 2019

Background and aims: The elderly living in nursing homes have different motor situations compared with their peers, which can affect different motor functions. Investigating the characteristics of balance has always been of interest to researchers due to its importance in the functional independence of the elderly. Thus, the present research aimed to investigate the effect of cognitive and sensorimotor exercises on the functional balance of the elderly. Methods: This quasi-experimental study was performed with the intragroup comparison design, as well as pre- and post-test measurement stages in Iran during 2017. A total of 60 elders were chosen through the convenience sampling method. Accordingly, the subjects were matched in four groups after performing the pretest with demographic, physical activity readiness, and Mini-Mental State Examination questionnaires and Tinetti test. Each group performed eight exercise situations lasting for 5-10 seconds by taking the overload principle into account throughout 24 sessions. The statistical population of this research consisted of the elderly living in nursing homes under the supervision of the Welfare Organization of Shiraz, including 875 individuals. In general, 60 subjects were chosen through a voluntary method (age: 61.7 ± 7.6 years old, weight: 65.2± 16.2 kg, and height: 157.7± 6.7 cm). During the data collection, 14 subjects left the study for different reasons. The balance characteristics were measured by the Tinetti test. Finally, statistical analysis was performed through the difference of the scores of measurement stages and by one-way ANOVA and Tukey post hoc tests. Results: The comparison of cognitive, sensorimotor, and combined groups with the control group regarding the dependent variables of the research indicated that cognitive exercises have no significant effect on balance (P=0.103), while the sensorimotor (P=0.002) and combined (P=0.002) exercises were effective on balance. Conclusion: In general, the significance of the balance following sensorimotor and combined exercises compared to the insignificance of cognitive exercises can highlight the importance of sensorimotor exercises in the balance of the elderly living in nursing homes.
The Investigation of Psychometric Properties (Validity and Reliability Reassessment) of WHO QOL-BREF Questionnaire in Shahrekord Cohort Study
Authors: Salehi Fatemeh , Ahmadi Ali
Published: December 2019

Background and aims: The purpose of this study was to revalidate the Persian version of the WHO quality of life (WHOQOL-BREF) instrument to determine the quality of life status in the Shahrekord Cohort Study (SCS) in the southwest of Iran. This study was designed to serve as one of the sources of the Prospective Epidemiological Research Studies in Iran. Materials and Methods: In this cross-sectional study, 2000 people were randomly selected from the study population of the SCS. The reliability and internal consistency of the WHOQOL-BREF were measured using Cronbach alpha coefficient and Pearson’s correlation. construct validity and factors measured using Pearson’s correlation matrices with each of its domains. To measure the face, content, and construct validities, the views of the panel of experts and exploratory factor analysis were used. In addition, the validity of the questionnaire was evaluated using linear regression. Results: All domains of the questionnaire met the minimum reliability standards (Cronbach alpha and intra-class correlation >0.7), except for social relationships. The results of comparison analysis indicated that the questionnaire discriminated well between subgroups of the study samples differing in their health status. Regarding validity, the Kaiser-Meyer-Olkin (KMO) value was 0.94 and the value of Bartlett’s test was 1699.01 (P≤0.001). Conclusion: The findings suggested that WHOQOL-BREF is a reliable and valid measure of healthrelated quality of life among SCS population.
Functional Movement Screening Performance and Association With Key Health Markers in Older Adults
Authors: Farrell Stephen W. , Pavlovic Andjelka , Barlow Carolyn E. , Leonard David , DeFina Joseph R. , Willis Benjamin L. , DeFina Laura F. , Haskell William L.
Published: December 2019

Farrell, SW, Pavlovic, A, Barlow, CE, Leonard, D, DeFina, JR, Willis, BL, DeFina, LF, and Haskell, WL. Functional movement screening performance and association with key health markers in older adults. J Strength Cond Res 35(11): 3021–3027, 2021—We examined Functional Movement Screening (FMS) performance and associations with key health markers among adults aged 55 years or older. Apparently healthy men (n = 425) and women (n = 158) completed a preventive medical examination between 2013 and 2018. Subjects were grouped by age and sex to determine mean scores for individual FMS items as well as total FMS score. We examined partial correlations between total FMS score and key health markers. We computed odds ratios (ORs) for having a total FMS score ≤14. The mean FMS scores for men and women were 11.7 ± 2.8 and 11.9 ± 2.3, respectively. Several differences were found between men who participated in FMS (takers) compared with FMS nontakers, whereas women FMS takers were generally similar to women FMS nontakers. After controlling for age, sex, and smoking, FMS scores were directly associated with physical activity (PA), cardiorespiratory fitness, frequency of resistance training, serum vitamin D, omega-3 index, low-density lipoprotein, and high-density lipoprotein (HDL)-cholesterol, and were inversely associated with body mass index (BMI), waist circumference (WC), blood glucose, HbA1c, and metabolic syndrome (p ≤ 0.02 for each). Adjusted OR for scoring ≤14 was significantly greater for those who were BMI and WC-obese, those with metabolic syndrome, those with low HDL-cholesterol, and those not meeting current PA guidelines. This study provides characteristics and mean values for FMS in a large older population and demonstrates that FMS performance is associated with key health markers. Prospective studies of older adults are needed to determine the utility of FMS in predicting future musculoskeletal injury and other chronic disease–related health outcomes.
Examination of Sleep and Injury Among College Football Athletes
Authors: Burke Tina M. , Lisman Peter J. , Maguire Kevin , Skeiky Lillian , Choynowski John J. , Capaldi Vincent F. , Wilder Joshua N. , Brager Allison J. , Dobrosielski Devon A.
Published: December 2019

Burke, TM, Lisman, PJ, Maguire, K, Skeiky, L, Choynowski, JJ, CapaldiII, VF, Wilder, JN, Brager, AJ, and Dobrosielski, DA. Examination of sleep and injury among college football athletes. J Strength Cond Res 34(3): 609–616, 2020—The purpose of this study was to characterize subjective sleep metrics in collegiate football players at the start of the season, determine the relationship between preseason subjective sleep measures and in-season objective sleep characteristics, and examine the association between subjective and objective sleep metrics and incidence of time-loss injury during the competitive season. Ninety-four Division I football players completed 5 validated sleep-related questionnaires to assess sleep quality, insomnia severity, daytime sleepiness, sleep apnea risk, and circadian preference before the start of the season. Clinical thresholds for sleep questionnaires were used to determine risk of sleep disorders. Continuous wrist actigraphy was collected throughout the season to generalize sleep behaviors. Time-loss injury incidence data were recorded and used for analysis. Results indicated that 67.4% (60 of 89) of athletes scored above clinical threshold in at least 1 questionnaire to indicate sleep disorder risk. At the start of the season, players subjectively reported an average sleep duration of 7:16 ± 1:18 hours:minutes, which was in contrast to the 6:04 ± 0:41 hours:minutes measured through actigraphy during the season. Logistic regression models adjusted for age and body mass index revealed no significant associations between injury and subjective (odds ratio [OR] = 1.00; 95% confidence interval [CI] = 0.99–1.01) and objective (OR = 1.01; 95% CI = 0.99–1.02) sleep duration or measures attained from sleep questionnaires (ORs ranged from 1.01 to 2.87). Sleep metrics (quantity and quality) were not associated with increased risk of injury in this cohort of collegiate football players.
Neuromuscular Fatigue Induced by a Mixed Martial Art Training Protocol
Authors: Giboin Louis-Solal , Gruber Markus
Published: December 2019

Giboin, L-S and Gruber, M. Neuromuscular fatigue induced by a mixed martial art training protocol. J Strength Cond Res 36(2): 469–477, 2022—Mixed martial arts (MMA) is a full-contact sport whose popularity and professionalism are rapidly growing. However, the specific physiological demands of this sport have been only scarcely studied so far, and especially the amount or type of neuromuscular fatigue induced by an MMA bout remains completely unknown. We estimated neuromuscular fatigue of knee extensors muscles during and after an MMA training protocol designed to simulate the physiological demands of MMA competition in competitive practitioners (n = 9) with isometric maximal voluntary force (MVF), potentiated muscle twitch at rest (Ptw), and voluntary activation (VA). Bayesian linear mixed models showed that the training protocol induced a reduction of MVF, Ptw, and VA. Although the largest reduction across time of VA was smaller than the largest reduction of Ptw, an effect of VA, but not of Ptw, was found on MVF variation. The training protocol induced neuromuscular fatigue, with a larger peripheral (Ptw) than central component (VA). However, despite the large decrease in Ptw, force production capacity was related only to VA, indicating that central control might play an important role in the compensation of the peripheral fatigue components estimated with Ptw. This central compensation can most probably prevent a too large loss of muscle force during the training protocol.
Effect of Sport-Specific Constraints on Aerobic Capacity in High School Field Hockey Players
Authors: Roberts Alexandra H. , Walden Amy J. , Carter Kathleen A. , Symons T. Brock
Published: December 2019

Roberts, AH, Walden, AJ, Carter, KA, and Symons, TB. Effect of sport-specific constraints on aerobic capacity in high school field hockey players. J Strength Cond Res 36(2): 493–497, 2022—Many sports require the use of a mouth guard (MG) and carrying an object during play. Research has shown that individually these conditions can cause performance decrements; however, no research has been conducted into the effect of combining both mouth guard and stick with adolescent female field hockey players. This study aimed to determine the effects of MG and stick (STK) use on estimated aerobic capacity over the course of a season long training and competition period. Thirty-eight female high school field hockey players were separated into 2 groups: experimental (EXP—all training with MG-STK) or control (CTL—all training without MG-STK). Aerobic capacity was estimated using a multi-stage fitness test. Field hockey specific training prescribed by coaching staff was performed throughout the study, with testing at pre-, mid- and post-season. Subjects performed 2 sets of testing at each time point, first without MG-STK (WOMG-STK) and then with MG-STK. No main effect was observed in aerobic capacity estimations between groups; however, MG-STK testing reduced estimated aerobic capacity at each time point, regardless of the group (WOMG-STK: 37.4 ± 6. mL·kg−1·min−1 vs. MG-STK: 33.2 ± 4. mL·kg−1·min−1; p < 0.01). Chronic use of MG-STK does not seem to negatively impact estimates of aerobic capacity over the course of a season in high school field hockey players. Therefore, players should be encouraged to use MGs during all training sessions as it increases safety and familiarity with no decrement in long-term physiological performance.
Screening for Borderline Personality Disorder With the McLean Screening Instrument: A Review and Critique of the Literature
Authors: Zimmerman Mark , Balling Caroline
Published: December 2019

Borderline personality disorder (BPD) is underdiagnosed in clinical practice. One approach towards improving diagnostic detection is the use of screening questionnaires. It is important for a screening test to have high sensitivity because the more time-intensive/expensive follow-up diagnostic inquiry will presumably only occur in patients who are positive on the initial screen. The most commonly studied self-report scale specific for BPD is the McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD). We summarize the performance of the scale across studies, examine the performance of the scale using different cutoff scores, and highlight the approach used by investigators in recommending a cutoff score. Most studies of the scale have taken a case-finding approach in deriving the cutoff score on the scale instead of a screening approach. For the purposes of screening, it may be more appropriate for the cutoff score on the MSI-BPD to be less than the currently recommended cutoff of 7.
Experimental and numerical FEM-based determinations of forming limit diagrams of St14 mild steel based on Marciniak-Kuczynski model
Authors: Mianroodi M. , Altmeyer G. , Touchal S.
Published: December 2019

Forming Limit Diagrams (FLD) are used to design metal sheet processes and to choose appropriate material according to their formability. Development of simple and robust methods to determine the formability domain is then a major industrial issue. Marciniak-Kuczynski (M-K) plastic instability criterion is a classical and common approach used to predict numerical FLD. A convergence of the experimental conditions and theoretical M-K hypotheses is investigated. This analysis leads in the proposition of a simple experimental procedure based on classical instrumented biaxial testing machines to reproduce M-K in-plane loading conditions. Experimental results are compared with numerical simulations based on a finite element method implantation of M-K model. This versatile implementation allows the coupling of the plastic instability criterion in ABAQUS with a large range of material behaviors. Application of these experimental and numerical procedures on commercial St14 mild steel leads to the relative differences between lower experimental points and numerical forming limits predictions that do not exceed 4% and 10% in the case of uniaxial and equibiaxial tension for initial prescribed defect ratio of 0.99 and 0.95, and 22% in the case of plane tension. These procedures constitute ways easily implementable in the industry to obtain FLD at reduced costs that show good correlations between experimental results and numerical M-K predictions.
A modified artificial bee colony algorithm to optimise integrated assembly sequence planning and assembly line balancing
Authors: Ab. Rashid M. F. F. , Nik Mohamed N. M. Z. , Mohd Rose A. N.
Published: December 2019

Assembly Sequence Planning (ASP) and Assembly Line Balancing (ALB) are traditionally optimised independently. However recently, integrated ASP and ALB optimisation has become more relevant to obtain better quality solution and to reduce time to market. Despite many optimisation algorithms that were proposed to optimise this problem, the existing researches on this problem were limited to Evolutionary Algorithm (EA), Ant Colony Optimisation (ACO), and Particle Swarm Optimisation (PSO). This paper proposed a modified Artificial Bee Colony algorithm (MABC) to optimise the integrated ASP and ALB problem. The proposed algorithm adopts beewolves predatory concept from Grey Wolf Optimiser to improve the exploitation ability in Artificial Bee Colony (ABC) algorithm. The proposed MABC was tested with a set of benchmark problems. The results indicated that the MABC outperformed the comparison algorithms in 91% of the benchmark problems. Furthermore, a statistical test reported that the MABC had significant performances in 80% of the cases.
Numerical investigation on enhancement of heat transfer using rod inserts in single pipe heat exchanger
Authors: Raheemah S. H. , Ashham M. A. , Salman K.
Published: December 2019

The current study focused on statistically investigating nanofluids’ turbulent flow and rate of heat transfer in double pipe heat exchanger with rod inserts. Through the use of numerical simulation, the effects which the various kinds of nanofluids have on the enhancement of heat transfer using finite volume method (FVM) are studied. An application of homogeneous heat flux is made to the tube wall. More so, an examination of the effect of three varying slant angles of rod insert (α = 25°, 30°, 45°) was carried out at varying Reynolds number ranging from 7500 - 20000. The statistical results revealed that the coefficient of transferring heat in the tube containing rod inserts is higher than that of the smooth tube. In addition, results also showed that when rod insert are used in double pipe heat exchanger to augment the Nusselt number increases the slant angle. The max value of Nusselt number was demonstrated at the angle 45° of rod insert. Through the use of the rod inserts at (α=45°) and (S = 30mm), the coefficient of maximal skin friction was determined because of the resistance of larger flow. The maximal value of the Performance Evaluation Criteria (PEC) was mentioned in the case of min slant angle of (α = 25°) and the pitch distance of S = 30 mm.
Influence of the spark heat on the electrode behavior in Powder Mixed-EDM environment
Authors: Abbas M. A. , Lajis M. A. , Jawad A. D. , Rahim E. A. , Ahmed S. , Jamil N. A.
Published: December 2019

Most past studies did not attempt to improve the numerical model for the electrode removal rate which depends on the experimental results. Furthermore, these studies have not included the damage-sensing for the electrode in Powder Mixed-EDM (PMEDM) medium. Therefore, the current study aims to enhance this model for the copper electrode based on the heat flux for the spark channel. Besides, it focuses on sensing the copper electrode damage depending on the slope relation between eroding velocity and the pulse duration. In both studies, during machining D2 steel, Nano chromium powder in the dielectric liquid is applied. The correlation factor between the Numerical Heat Flux q(r) and the experimental results for the Tool Wear Rate (TWR) attained is 93.06%. The value of this factor improves the mathematical model for TWR instead of the traditional mechanism that adopts the crater volume. Also, the damage-sensing constant (STD) in the copper electrode is very efficient at the minimum value of the peak current (IP), powder concentration (PC) and the maximum level of the pulse duration (Ton). Thus, the statistical confirmation using Response Surface Methodology (RSM) produced a higher value of the composite desirability (96.76%) and error percent equals to (10.3%-1.55%) and (0.18%-2.40%) for TWR and q(r), respectively. On the other hand, the optimum operation values are IP = 10 Amps, Ton = 30 µs, and PC = 2 g/L. These confirmation values are similar to the trials No. (3) and No. (11). Therefore, these values confirm the main purpose in order to obtain the best performance for TWR at the minimum spark heat.
Internet-based Carrying-out Strategy of Personalized Supplementary Education: A Case Study of School-based Practice in Middle School A in Jiangsu, China
Authors: Xia Xuyue , Chang Lerongrong , Li Fangmei
Published: December 2019

As an integral part of classroom teaching, after-school tutoring has always been valued by teachers and parents. Although outside school tutoring classes have largely filled the vacancy of after-school learning, their effectiveness cannot be guaranteed and the cost is high. Therefore, after-school supplementary learning based on the Internet has become a new choice for parents and teachers. How to use the network system to achieve the integration of inside and outside the school, inside and outside the classroom, how to use the network to assist students to meet the needs of students’ differentiated and personalized learning is the key content that needs to be resolved in the construction of “Internet+” personalized after-school assistance. This article will take the school-based practice of a middle school in Jiangsu Province, China as an example, and explore the implementation strategy of personalized supplementary learning with the Internet as a carrier.
Importancia de la formación ética de los estudiantes de medicina
Authors: Izaguirre Manuel
Published: December 2019

Comprender la importancia de la formación ética de los estudiantes de medicina, obliga analizar la realidad actual de la educación médica para determinar qué criterios éticos y morales se le debe inculcar a los estudiantes de medicina durante su formación para que sean excelentes profesionales con responsabilidad ética y jurídica al centrar la enseñanza en el estudiante como persona, en la excelencia técnica para ser buen médico, y en la excelencia moral para ser un médico bueno. Por lo tanto, debe comprender que el enfermo como persona y su contexto tiene que ser el eje de la atención médica complementándose bidireccionalmente con la ciencia y el humanismo, convirtiendo al enfermo en el fin supremo de la medicina y no como simple portador de enfermedades, buscando su bienestar, no causándole daño, respetando su autonomía y la justicia en las decisiones que deben ser prudentes, responsables y morales.
Protestas sociales en Chile y tiempos líquidos. Una oportunidad para reformas urgentes en el campo de la salud pública
Authors: Murillo Peña Juan Pablo , López Campillay Marcelo , Pesse-Sorensen Karen
Published: December 2019

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