bluuebunny/crossref_metadata_2025 huggingface dataset:
Nutritional Status, Sarcopenia and the Importance of Prehabilitation of Gastrointestinal Tumor Patients: a Surgical Point of View
Authors: Lukovich Péter , Nagy Ákos , Barok Bianka , Csiba Borbála , Rokka Ram , Pőcze Balázs
Published: August 2020

Background

Surgery may be the field of healthcare where malnutrition and sarcopenia have their greatest impact on patient morbidity and mortality. However, there are limited data on the nutritional status of surgical patients and the effects of prehabilitation on the outcomes of surgery.

Methods

A prospective analysis was conducted on all patients surgically-treated for malignant gastrointestinal tumors at St. John Hospital during a two-year period. The patient’s gender, age, body weight, height, BMI and weight loss were registered, then a risk score was determined by the MUST survey. Measurement of the triceps and thigh skin-fold thickness and the circumference of the upper arm and thigh were done to calculate muscle area and muscle index, respectively. The body composition was assessed using an OMRON-BF511 device. Muscle function was evaluated based on hand clamping force measurement and activity tests. Patients who were diagnosed as being at-risk received preoperative prehabilitation, which included physiotherapy and nutritional therapy.

Results

A total of 231 patients (133 males/98 females) were analyzed. They had a mean age of 68.9 years (18∼98). Seventy-four patients (32%) lost weight, with an average loss of 7 kilograms (3∼15 kg). Anthropometric data showed an average upper-arm circumference of 27.4 cm (14.3∼38.1) and thigh circumference of 44.7 cm (19.3∼60.1), so the median muscle index was 1.29. The mean BMI was 26, which is above normal, and the elevated BMI was consistent documented in each patient subgroup stratified by age and tumor type. A body composition analysis was performed for 75 patients (44 male/31 female), who had a median age of 68 (37∼88 y). The average BMI of these patients was 25.7 y and their average MUST score was 1.12. The total body fat percentage (of the total body mass) was 29.5%, total muscle was 30.1% and visceral fat was 10%. Thirty patients (40%) had sarcopenia, with a mean BMI of 28.7, fat comprising 34.2% of the body mass, visceral-fat 11%, and muscle 27.1 %, and their median MUST score was 1.23. Patients who received preoperative training (physiotherapy) showed improvements in physical function ranging from 12%∼33%.

Conclusion

Gastrointestinal tumor patients have a higher than normal BMI regardless of age or tumor type. Patients with sarcopenia show measurable improvement after two weeks of prehabilitation.
Effect of Weight Loss on Survival in Esophageal Cancer Patients undergoing Neoadjuvant Chemoradiotherapy and Surgery
Authors: Lyu Jia Hua , Li Tao , Han Yong Tao , Wu Lei , Peng Lin , Wang Qi Feng , Liang Long
Published: August 2020

Objective

This study aimed to determine the impact of weight loss during neoadjuvant chemoradiotherapy on the survival of patients with esophageal carcinoma.

Methods

We retrospectively examined 102 consecutive patients with esophageal carcinoma who underwent neoadjuvant chemoradiotherapy followed by radical resection at Sichuan Cancer Hospital & Institute between 2003 and 2017. The patients were divided into three groups based on the amount of body weight lost during neoadjuvant chemoradiotherapy: severe weight loss (>10%), high weight loss (5%∼10%), and low weight loss (< 5%). The correlations of weight loss with toxicity, progressionfree survival, and overall survival were investigated.

Results

The median overall survival was 49.7 months in the low weight loss group compared with 35.4 and 25.1 months in the high and severe weight loss groups (P = 0.041). The 1-year overall survival rates in the severe, high, and low weight loss groups were 62.5%, 85.0%, and 90.7%, respectively; the corresponding 3-year overall survival rates were 21.9%, 47.3%, and 68.8%, respectively, and the corresponding 5-year overall survival rates were 21.9%, 31.0%, and 44.4%, respectively. The multivariate analysis indicated that a pathological complete response and severe weight loss were independent prognostic factors for overall survival. Any leukopenia (P = 0.024), leukopenia of at least grade 3 (P = 0.021), and anemia (P = 0.042) occurred more frequently in the severe weight loss group.

Conclusions

Weight loss during neoadjuvant CRT is an independent and adverse prognostic factor in esophageal carcinoma patients, whereas a stable weight confers a better prognosis.
Submandibular Cervical Mass as the First Presenting Sign of FVPTC. A Case Report and Review of Literature
Authors: M Dr. Soumya , M. Bavle Dr. Radhika , M. Dr. Sudhakara , N. Dr. Srinath
Published: August 2020

Submandibular cervical swellings can manifest with a wide range of differentials which could be congenital, infective, reactive, neoplastic, or metastatic in origin. Here we discuss a case of a 42 year old male patient, who initially presented with a painless mass in the right submandibular region with no other associated symptoms, which on further examination turned out to be metastatic lymphadenopathy. A thorough investigation of the neck was subsequently performed, which lead us to the diagnosis of follicular variant of papillary thyroid carcinoma with submandibular lymphnode metastasis. Thus, the consideration of a metastatic lymph node in the differential diagnosis is always mandatory in the case of a long standing, largely asymptomatic solitary mass in the lateral neck of an adult patient.
The Role of Achievement, Gender, SES, Location, and Policy in Explaining the Indigenous Gap in High-School Completion
Authors: Schellekens Melissa , Ciarrochi Joseph , Dillon Anthony , Sahdra Baljinder K. , Brockman Robert , Mooney Janet , Parker Philip
Published: August 2020

Internationally there is a gap in high school completion rates for Indigenous and non-Indigenous students. In Australia, gap estimates are commonly based on lag indicators, precluding examination of underlying mechanisms. Using two longitudinal and representative samples of Australian youth, we explored differences in high school completion between Australian Indigenous and non-Indigenous rates and whether the gap varies for students of similar academic ability. Using an intersectional approach, we show the Indigenous gap varies by SES and location. Specifically, high SES and living in urban settings are protective factors for non-Indigenous students, but not so for Indigenous students. Results also show the Indigenous gap declined in response to government policy that increased the compulsory school leaving age.
INVESTIGAR A TRAVÉS DEL PROYECTO: La descripción colectiva como medio de consciencia arquitectónica
Authors: Fracalossi Igor
Published: August 2020

Investigar en arquitectura es una acción aún sin forma. Arquitectos han estado tradicionalmente haciendo uso de maneras de investigar ajenas a la disciplina. En los polos extremos están el método histórico y el método científico. La investigación y la teoría en arquitectura han estado moviéndose en esa línea polarizada y desarrollándose con medios convencionales. Se trata, entonces, de una historia impropia, que aporta menos al oficio de la arquitectura que al de otras disciplinas. Pero la arquitectura posee un centro innegablemente propio que es el proyecto. Sin embargo, mientras que el proyecto en cuanto medio de creación es, desde el origen de la disciplina, conocido, en cuanto medio de investigación aún está por conocerse. Este artículo, no obstante, no es más que un dar a conocer dos experiencias académicas que planteaban la descripción colectiva objetiva como modo de hacerse consciente sobre los problemas intrínsecos y específicos de la obra de arquitectura: la palabra como catalizador del dibujo.
Diagnóstico diferencial de obstrucción del ileón distal en mujeres jóvenes
Authors: Mosquera-Klinger Gabriel Alonso , Valencia-Maturana Julio , Pérez Juan Camilo , Quintero Riaza Víctor
Published: August 2020

La obstrucción intestinal en pacientes jóvenes es poco frecuente. La mayor parte de los casos se presentan en mujeres jóvenes (pre menopáusicas) y suelen estar relacionados a enfermedad inflamatoria intestinal tipo enfermedad de Crohn, o endometriosis con compromiso intestinal. En esta serie de casos presentamos y discutimos tres pacientes mujeres en etapa reproductiva, con síntomas de obstrucción intestinal, quienes tienen patologías y desenlaces diferenciales. En el abordaje inicial de la obstrucción, se realizó enteroresonancia. Hacemos la presentación de casos, discusión y revisión de la literatura del diagnóstico diferencial de la estenosis en ileon distal y del uso de la enteroresonancia en ese escenario.
Исследование динамики содержания малонового диальдегида в консервированном пюре из цветной капусты при различных режимах хранения
Authors: Самойлов Артем Владимирович , Сураева Наталья Михайловна , Рачкова Вера Павловна
Published: August 2020

Послеуборочное хранение плодоовощной продукции сопровождается повышением перекисного окисления липидов в цитоплазматической мембране растительных клеток и увеличением концентрации малонового диальдегида, уровень которого сохраняется при дальнейшем консервировании. В организме человека этот альдегид также является продуктом окисления ненасыщенных жирных кислот и способен взаимодействовать с белками, ДНК и другими молекулярными структурами, образуя различные потенциально токсичные аддукты. К числу важных направлений изучения механизмов молекулярной нестабильности пищевых ингредиентов следует отнести изучение их взаимодействий с малоновым диальдегидом. Цель исследования – изучение влияния условий хранения консервированного пюре из цветной капусты на содержание малонового диальдегида. В работе использовали свежую цветную капусту и консервированное пюре из нее. Малоновый диальдегид определяли спектрофотометрическим методом по цветной реакции с тиобарбитуровой кислотой. Было показано, что уровень этого биомаркера в пюре не превышал аналогичных результатов измерений в свежей капусте. Было продемонстрировано линейное снижение уровня малонового диальдегида в пюре при хранении в течение более 4-х месяцев с высоким коэффициентом детерминации (R² = 0,9796) при комнатной температуре. Повышение температуры хранения консервированного продукта существенно повлияла на скорость деградации малонового диальдегида. Его концентрация снизилась почти на 10% по сравнению с контрольными образцами, которые хранились при комнатной температуре, однако этот эффект не возникал при условии периодического снижения температуры хранения до 4,0°С. В этом исследовании было обнаружено, что уровень малонового диальдегида  в консервированных пищевых продуктах менялся в зависимости от сроков и условий хранения этих продуктов.
Концентрированная паста из сахарной свеклы как альтернатива патоке и инвертному сиропу в производстве сырцовых пряников
Authors: Жаббарова Сарвиноз Комилжоновна , Исабаев Исмоил Бабаджанович , Хайдар-Заде Лолита Ниматовна , Алексеенко Елена Викторовна
Published: August 2020

Релевантность проблемы модификации рецептурного состава пряничных изделий в соответствии с требованиями современной нутрициологии заключается в поиске натуральных ингредиентов, обеспечивающих возможность частичной или полной замены патоки и инвертного сиропа, способствующих повышению пищевой ценности, снижению энергетической ценности, себестоимости и продлению сроков свежести. В данном контексте исключительный интерес представляет концентрированная паста из корнеплодов сахарной свеклы c массовой долей сухих веществ 45,0%., содержащая уникальный ансамбль природных компонентов, в том числе, натуральных сахаров в высоких концентрациях, что позволяет рассматривать их в качестве перспективных сахаросодержащих ингредиентов, применение которых предоставляет широкие возможности для повышения пищевой ценности и создания новых видов пряничных изделий. Образцы пряников готовили в лабораторных условиях с частичной (50,0%) и полной заменой рецептурного количества крахмальной патоки концентрированной пастой из сахарной свеклы в пересчете на сухие вещества. Исследовано влияние пасты на свойства теста и показатели качества готовых изделий. Установлено, что введение пасты в состав рецептуры способствовало снижению жидкой фракции теста и, как следствие, увеличению его вязкости. Выявлено положительное влияние пасты из сахарной свеклы на показатели качества готовых изделий. У образцов сырцовых пряников, полученных с частичной или полной заменой патоки в рецептуре, отмечалось увеличение удельного объёма соответственно на 6,7 и 15,1%, намокаемости – на 2,7 и 6,1%, плотность уменьшалась на 6,4 и 14,5% по сравнению с контролем. Экспериментальные образцы пряников отличались более нежным вкусом, золотистой окраской, равномерной пористостью, хорошей (менее расплывчатой) формой. При этом, по сравнению с контролем, содержание белка выше - на 1,6 и 6,3%, пищевых волокон – на 4,9 и 7,3 %, отмечалось снижение массовой доли углеводов на 0,5 и 1,0% и энергетической ценности – на 1,3 и 2,5 ккал на 100 г продукта. Установлено, что пряники, упакованные в полипропиленовую пленку, при хранении при температуре 30±2 оС и относительной влажности воздуха не более 70,0 % в течение 25 суток сохраняли высокие органолептические показатели и демонстрировали микробиологическую стабильность. Исследуемые образцы пряников соответствовали гигиеническим нормативам безопасности пищевой продукции СанПиН №0366-19 (Узбекистан) и требованиям ТР ТС 021/2011 О безопасности пищевой продукции. Разработана рецептура сырцовых пряников с использованием концентрированной пасты из корнеплодов сахарной свеклы, которая прошла успешную апробацию в условиях ООО «Pasquale» (г. Бухара). Утверждена рецептура на данный вид продукции и разработан проект стандарта предприятия.
Impedance Decomposition for Design-Oriented Analysis of Grid-Forming Voltage-Source Converters
Authors: Liao Yicheng , wang xiongfei
Published: August 2020

Grid-forming voltage-source converters (VSCs) tend to suffer
from sideband oscillations in stiff grids. Conventional state-space eigenvalue
analysis or impedance-based stability analysis based on generalized Nyquist
stability criterion can only analyze how specific control parameters affect the
overall system stability, which ends up with less insight into a controller
design-oriented analysis. To tackle this challenge, this article starts with the
impedance modeling and stability analysis of grid-forming VSCs in stiff grids.
Then, an impedance decomposition approach to characterizing the impacts of
multiple control loops is proposed, which benefits in a controller
design-oriented analysis for stability enhancement. Finally, simulation and
experimental results are provided to validate the approach.
Current state of nuclear cardiology in Russian Federation
Authors: Сергиенко В.Б. , Аншелес А.А.
Published: August 2020

В статье рассматривается современное состояние отечественной радионуклидной диагностики в кардиологии. Приводятся сравнительные данные по обеспечению радиодиагностической аппаратурой в России и за рубежом, анализируются причины сохраняющегося отставания отечественной ядерной медицины от мировой практики. Рассматриваются возможности улучшения обеспечения населения функциональными сцинтиграфическими и позитронно-эмиссионными томографическими исследованиями.

The article discusses the current state of nuclear cardiology in Russian Federation. Comparative data on quantity of installed diagnostic equipment in Russia and other countries are given, the reasons for the continuing lag of domestic nuclear medicine in comparison with world practice are analyzed. Opportunities to improve the current state and providing functional scintigraphic and PET studies for Russian population are considered.
Features of the course and approaches to the treatment of coronavirus infection COVID- 19 patients with cardiovascular diseases
Authors: ДЕНИСОВА А.Р. , СИВАКОВА О.А. , БЛИНОВА Н.В. , ГАЛИЦИН П.В. , ЯРОВОЙ С.Ю. , КУШНИР П.Ф. , ГАМАН С.А. , ДАНИЛОВ Н.М. , ЛИТВИН А.Ю. , ПЕВЗНЕР Д.В. , ЕЖОВ М.В.
Published: August 2020

Пациенты с наличием сердечно-сосудистых заболеваний (ССЗ) представляют особую уязвимую группу населения в условиях пандемии коронавирусной инфекции COVID -19. Они наиболее подвержены риску заражения, тяжелому течению заболевания, а также более высокой летальности по сравнению со здоровой популяцией. В настоящее время отсутствуют рандомизированные клинические исследования, позволяющие определить наиболее эффективные подходы к лечению у данной категории больных. Представленный клинический пример демонстрирует возможности применения различных групп препаратов, рекомендованных для лечения COVID-19 и высокую эффективность терапии ингибитором рецептора интерлейкина – 6 (ИЛ-6) у пациента с тяжелым течением новой коронавирусной инфекции и наличием сопутствующей сердечно-сосудистой патологии.

Patients with cardiovascular disease represent a particularly vulnerable population in a pandemic of the coronavirus infection COVID -19. They are more at risk of infection, a severe course of the disease, as well as a higher mortality rate compared to a healthy population. Currently, there are no randomized clinical trials to determine the most effective approaches to treatment in this category of patients. The presented clinical example demonstrates the possibilities of using various groups of drugs recommended for the treatment of COVID-19, and the high efficiency of treatment with an interleukin-6 receptor inhibitor (IL-6) in a patient with severe new coronavirus infection and the presence of concomitant cardiovascular pathology.
Data Mining Based Marketing Decision Support System Using Hybrid Machine Learning Algorithm
Authors: Dr. T. Senthil Kumar
Published: August 2020

Data mining is widely used in engineering and science, On the contrary, it is used in finance and marketing applications to resolve the challenges in the respective fields. Data mining based decision support system enhances the organization performance by analysing the ground reality. Turbulent economy is common for every organization due to the competition, cost, tax pressures, etc., Privatization, Globalization and liberalization drags the organization more into a competitive environment. In order to balance the competition and withstand to achieve desired gain proper marketing strategies are need to planned and executed. Marketing decision support system helps to reduce the organization burdens in analysing and strategical planning through its efficient data mining approach. This research work proposed a data mining based decision support system using decision tree and artificial neural network as a hybrid approach to estimate the marketing strategies for an organization.
Tratamento do lixiviado bruto por coagulação/floculação e POA solar
Authors: Maciel Almeida de Andrade Mariana , de Almeida Porto Camila , Maria Rodrigues Rocha Elisângela , Lima Silva Erika , Granjeiro Lucena Larissa
Published: August 2020

O presente trabalho avaliou a eficiência do pré-tratamento do lixiviado bruto de aterro sanitário por coagulação/floculação seguido do processo oxidativo homogêneo solar (H2O2/UV). Foram realizados ensaios em
Jar-Test, com o Al2(SO4)3 e o FeCl3, a fim de determinar as melhores condições para a coagulação/floculação, tendo como variáveis-resposta: a remoção de cor verdadeira e turbidez. Em seguida, a melhor condição de cada coagulante foi submetida ao processo H2O2/UV solar, sendo as amostras avaliadas quanto a cor verdadeira, turbidez e DQOtotal. Na combinação da coagulação/floculação com Al2(SO4)3 (600 mgAl2+L-1, pH 5), seguida pelo processo H2O2/UV solar, conseguiram-se remoções de 95,26% de cor verdadeira, 69,36% de turbidez e 53,92% DQOtotal. Já o processo com FeCl3 (450 mgFe3+L-1, pH 4) seguido por H2O2/UV solar obteve remoções de 97,01% de cor, 79,57% de turbidez e 62,85% de DQOtotal. Concluiu-se que o tratamento utilizado foi eficiente, podendo auxiliar na aplicação posterior de um tratamento biológico.
Palavras-chave: Tratamento fisico-químico. Al2(SO4)3, FeCl3.
Cadastro técnico multifinalitário como base de dados para a modelagem distribuída de pequenas bacias
Authors: de Andrade Bem Danilo , do Nascimento Batista José Anderson
Published: August 2020

A sucessiva expansão das áreas urbanizadas e a carência de dados hidrológicos, em especial nas pequenas bacias, têm agravado os problemas relacionados ao controle de cheias e poluição difusa. Por outro lado, modelos de hidrologia urbana devem ser capazes de lidar com a rápida evolução da morfologia nas áreas urbanizadas. O presente trabalho tem o objetivo elaborar e avaliar, a partir de medições em campo, um modelo hidrológico distribuído chamado hidrograma unitário geomorfológico (HUG) para uma sub-bacia urbana (0,85 km²) do Ribeirão das Pedras a partir de dados de um cadastro técnico multifinalitário (CTM). O modelo foi calibrado de forma satisfatória ao presente estudo de caso, ao mesmo tempo em que os seguintes fatores intervenientes foram levantados: topologia da rede pluvial, resolução espacial do cadastramento técnico e a variabilidade espacial da chuva.
Palavras-chave: Geomorfologia urbana. Hidrograma unitário geomorfológico. Drenagem urbana.
LATS como sistemas sustentáveis para tratamento de efluentes e geração de matéria- prima para produção de energia
Authors: Arantes Frauches Reis Heytor Fabricio , Lopes Pereira Erlon
Published: August 2020

As lagoas de alta taxa possuem elevada produtividade de biomassa algal, a qual tem despertado interesse para produção de biocombustíveis. Esse estudo traz uma revisão sobre essas lagoas, fatores que influenciam em sua eficiência, parâmetros de projeto e as limitações que apresentam para a geração de biocombustíveis. As operações de colheita e secagem são apontadas como os principais gargalos para a exploração da biomassa algal. Portanto, processos que necessitam de elevadas concentrações de matéria seca devem ser evitados. Os fatos apresentados no trabalho levam a crer que o biogás é a melhor alternativa de exploração energética da biomassa algal atualmente. Dois efluentes com potencial para essa exploração em larga escala são apresentados no trabalho: vinhaça de cana-de-açúcar e POME.
Palavras-chave: Biomassa. Bioenergia. Remoção de Nutrientes. Tratamento Aeróbio.
Remoção de amoxicilina da água utilizando carvão ativado de coco babaçu (orbignya phalerata)
Authors: Fernandes Coelho Souza Allison Daniel , Eustáquio Lacerda Gabriela , Pessoa Picanço Aurélio , Guarda Emerson Adriano , Martins Guarda Patricia , Costa Gonçalves Portelinha Thiago
Published: August 2020

Os fármacos são todas as substâncias com ação farmacológica, empregados com um propósito terapêutico. Sua presença no meio aquático advém do uso crescente pelos seres humanos e animais; após metabolizados, eles são excretados e transportados até as matrizes ambientais. Visando contribuir com soluções de possíveis problemas relativos às contaminações com estas substâncias, o presente estudo teve por objetivo verificar a remoção do antibiótico amoxicilina da água na concentração de 10 mg.L-1 por meio de processo de adsorção com Carvão Ativado de Coco Babaçu sob a forma granular (CAG), por meio de testes em coluna de leito fixo, e em pó (CAP), pelo método de adição. As leituras de concentração após o tempo de contato com o carvão foram realizadas por cromatografia líquida de alta eficiência (CLAE). Verificaram-se concentrações residuais abaixo do limite de detecção na remoção da amoxicilina com o CAG de menor granulometria. Já o CAP foi menos eficiente sob as dosagens e tempo de contato analisados.
Palavras-chave: Antibióticos. Ambiente Aquático. Adsorção. Cromatografia.
The coronavirus family neurological effects: A literature review
Authors: Abdulwahab Alahmari
Published: August 2020

All the lethal coronaviruses like the middle east respiratory syndrome, severe acute respiratory syndrome coronavirus, or the new coronavirus have showed similar and non-similar effects on the central nerves system. The aim of this paper is to summarize the published findings as neurological effects of the most dangerous three viruses in the coronavirus family and to find the common neuropathological patterns among the three viruses.

Keywords: Brain; MERS-CoV; SARS-CoV; SARS-CoV-2; Neurological effect; Coronavirus
Model of skeletal muscle cramp and its reversal
Authors: Tasaki Kazuyo , Noble Denis , Noble Penelope J. , Shorten Paul R. , Garny Alan , Afshar Nima
Published: August 2020

In an accompanying paper [2], we developed the Shorten [3] model of skeletal muscle by incorporating equations such as surface calcium fluxes. In further research in this paper, we succeeded in reproducing muscle cramp, as well as its prevention and reversal, by investigating muscle contraction and cramp, in which calcium regulatory networks are involved, using the extended model in comparison with the original model. Incorporation of data from a traditional medicine from root extracts of paeony and licorice and one of its pure chemicals was modeled. The sensitivity analysis of the extended model shows the robustness of the calcium regulatory networks. Muscle cramp, in the extended model, requires calcium influx via the L-type calcium channel and it will not occur without calcium influx. Reduced calcium influx can delay or prevent cramp. Increased interstitial potassium is implicated in developing and maintaining cramp. Mechanism of reversal of cramp requires wash-out of extracellular potassium via increased blood flow, followed by calcium efflux via sodium-calcium exchange. This paper shows the first successful quantitative electrophysiological and mechanical model of cramp and of its reversal.
A Unit Study of Externality of Shrimp Farming on Provisioning Services (Paddy Farming)
Authors: Ray Santanu , Das Suvendu , Saha Prosenjit , Banerjee Arnab , Maity Manaswee
Published: August 2020

Externality; the term can define as a positive or negative impact from either production or consumption of goods or services. Services provided by particular location have very specific dependency on spatial characteristics of that region. A region’s distinct characteristics make it ecologically unique from other such regions. Ecosystem services offered by these regions thus differ according to these unique ecological features. In this particular study, artificially imposed expansion of coastal shrimp farming towards the inland and its impact over paddy cultivation have been addressed.  Optimization of the extent of this manipulative coastal expansion has been supported by little modification of a previously described model.  Here the investment prediction for both shrimp and paddy farming has been investigated by calculating net present value (NPV). Shrimp farming has very specific externality on local ecosystem services. In this particular case, some contradictory results are presented and with respect to positive or negative externality; but the externality are strong. NPV results indicate that there is no long-term profitability in case of shrimp farming. Hence, an overall externality of shrimp farming has been described in context of this study.
Effects of Music on Driver Behavior
Authors: Mahmoud Zaid , Ruzek Martin
Published: August 2020

The attention level of car drivers is affected by many factors. Music is one of the most importantones, but its effect is rarely studied. Music can affect driving style in both positive and negative ways, as itcan reduce fatigue but also increase the level of distraction or aggression. This article presents anexperimental investigation of the effects of music on driver attention level. Several measurements on avehicle simulator were done to collect data that demonstrates the relationship between music and theperformance of the car driver. The simulation measured performance under three conditions - relaxationmusic, rock music and silence. Additionally, the measurements were repeated in both fresh and tired states.The results are, in some aspects, different from our expectations - for example, relaxation music improvedreaction time but also correlated with a higher occurrence of inappropriate steering actions. Deeperunderstanding of how the music and noise affect the driver’s actions and decisions will help to improveroad safety and reduce the probability of accidents
La Estrategia en las organizaciones y los limites desde la perspectiva social y humana
Authors: Cardona-Arbeláez Diego , Gómez-Castillo Natalia , Lorduy-Miranda Susana Margarita
Published: August 2020

El concepto de estrategia es ampliamente abordado en la literatura relacionada con la gestión organizacional, desde la primeras definiciones hasta las definiciones modernas le han aportado a la construcción de las organizaciones con una visión más amplia, enfocadas a la consecución de metas mas ambiciosas. El presente documento tiene por objetivo abordar las diferentes acesiones del concepto estrategia desde la perpectiva de diversos eruditos de este área de conocimiento haciendo gran enfasis en el modelo propuesto por Renée Bedard. Se puede concluir que el concepto estrategia es el elemento dinamizador y estructurador de las empresas, puesto que este posee la capacidad de dar norte a las acciones desarrolladas por el capital humano dentro de las organizaciones.
ARE THE MARGINAL CONVERGENCE OUTCOMES OF THE COHESION POLICY DIMINISHING?
Authors: Butkus Mindaugas , Mačiulytė-Šniukienė Alma , Matuzevičiūtė Kristina
Published: August 2020

Significant disparities still exist between regions of the European Union, even though substantial Cohesion investments are directed to address this issue. To adjust the Cohesion Policy (CP), researchers assess the returns of the CP, but almost all studies are carried out at NUTS1&2 or a country level, even though significant disparities occur at NUTS3 level. Moreover, just a few studies examine the non-linear effects of the CP, and none of them covers the NUTS3 disaggregation level. Filling the gap of previous contributions, the paper aims to investigate convergence outcomes of the CP at NUTS2&3 level and to identify whether the marginal effect of the CP is diminishing. The estimation strategy is based on the modified specification of the difference-in-differences estimator that has an advantage while examining policy effects, using non-experimental data. Based on research findings, the essential guidelines for the improvement of the CP can be drawn up: i) the distribution policy of Cohesion investments should focus on smaller territorial units to reduce disparities at NUTS3 level; ii) the intensity of the CP’s transfers has to be optimised because excessive intensity does not provide a positive return.
CONVERGENCE ANALYSIS OF ENVIRONMENTAL EFFICIENCY FROM THE PERSPECTIVE OF ENVIRONMENTAL REGULATION: EVIDENCE FROM CHINA
Authors: Feng Suling , Wu Haoyue , Li Guoxiang , Li Liping , Zhou Wenting
Published: August 2020

The aim of this paper is to analyze the impact of environmental regulation on regional environmental efficiency convergence using the fixed effects model and threshold regression model. The results show that the differences in environmental efficiency have a convergence trend in China, as well as in the eastern, central and western regions. The effect of environmental regulation on regional environmental efficiency is inhibition first and then promotion, research and development investment and outward foreign direct investment have a positive transmission effect; when environmental regulation intensity exceeds a certain threshold, the growth rate of environmental efficiency in the central and western regions will be significantly higher than that in the eastern regions.
A new subspecies of Parnassius arcticus (Eisner, 1968) (Lepidoptera, Papilionidae) from the Momsky Range (Yakutia, Russia)
Authors: Yakovlev Roman V. , Shapoval Nazar A. , Bakhaev Yuri I. , Kuftina Galina N. , Khramov Boris A.
Published: August 2020

On the basis of the characters of external morphology and analysis of DNA barcodes, an isolated population of the Arctic Apollo, Parnassius arcticus (Eisner, 1968) (Lepidoptera, Papilionidae), from the Momsky Range mountains (northeastern Yakutia, Russia) is described here as a new subspecies, Parnassius arcticus arbugaevi Yakovlev & Shapoval, subsp. nov. The taxonomy, distribution, ecology, and biotopical preferences of the nominotypical P. arcticus and the new subspecies are discussed.
Anti-inflammatory properties of some novel thiazolo[4,5-b]pyridin-2-ones
Authors: Chaban Taras , Matiychuk Vasyl , Komarytsya Olexandra , Myrko Iryna , Chaban Ihor , Ogurtsov Volodymyr , Nektegaev Ihor
Published: August 2020

Synthesis of novel N3 and C5 substituted thiazolo[4,5-b]pyridin-2-ones was carried out on the basis of [3+3]-cyclocodensation, acylation and alkylation reactions. The structures of the obtained compounds were confirmed by 1H NMR spectroscopy, and elemental analysis. The anti-inflammatory action of novel thiazolo[4,5-b]pyridine-2-one derivatives was evaluated in vivo employing the carrageenan-induced rat paw edema method. When compared with Ibuprofen, some our compounds were found to be more potent.

Graphical abstract
Violence sans fin au Sahel
Authors: Antil Alain
Published: August 2020

En dépit de la présence militaire française depuis 2013, la violence dans la zone sahélienne ne connaît pas de répit. Elle a de multiples causes. La présence de groupes terroristes s’associe à la corruption des États et à leur incapacité à assurer la sécurité des populations. Une réponse essentiellement militaire risque plutôt d’accentuer les tensions et de renforcer la violence.
Sexualité limite et processus mélancolique
Authors: Mazoyer Anne-Valérie , Estellon Vincent , Roques Marjorie
Published: August 2020

Chez une femme ayant subi un deuil maternel à l’âge de 8 ans, puis l’inceste paternel pendant des années et qui s’adonne, à l’âge adulte, à des pratiques sexuelles principalement sadomasochistes, sont mis en perspective les mouvements mélancoliques qui infiltrent des comportements sexuels compulsifs où humiliation et souffrance sont activement recherchées. À partir de cette étude de cas, est engagée une réflexion sur les modalités de transfert et de contre-transfert particuliers et leurs effets dans l’élaboration de la relation thérapeutique. Nous soumettons à la discussion l’hypothèse du masochisme pervers féminin qui relayerait le masochisme érotique féminin dans la sexualité compulsive.
Experimental Evaluation of Perfluorophenanthrene as a High Specific Gravity Vitreous Substitute: A Preliminary Report
Authors: Nabih Mostafa , Peyman Gholam A , Clark Leland C , Hoffman Richard E , Miceli Michael , Abou-Steit Mahmoud , Tawakol Magdy , Liu Kwan-Rong
Published: August 2020

ABSTRACT

Perfluorophenanthrene, a liquid fluorocarbon with a specific gravity approximately twice that of water, potentially offers certain advantages as a vitreous substitute in vitreoretinal surgery. To determine its efficacy and safety we first purified it by chemical methods used in the preparation of experimental blood substitutes to a level at which it was not at all or only minimally toxic to culture-grown retinoblastoma cells. Nineteen of 22 vitrectomized eyes of white New Zealand rabbits injected with this purified perfluorophenanthrene showed satisfactory clinical tolerance. Light and electron microscopy showed minimal or no toxic effects in the 19 eyes, although uptake of perfluorophenanthrene by some preretinal cells was observed 28 days after implantation. Postoperative light-adapted electroretinography recordings of eight of the injected eyes showed no significant change. Perfluorophenanthrene injected into the anterior chamber of the rabbit eyes had toxic effects on the cornea.

If further experimentations confirm our findings, perfluorophenanthrene may be a suitable transparent high-density liquid for temporary use in surgery to repair retinal detachments.
Comportamiento del flujo de esfuerzo y análisis microestructural de compuestos de matriz de aluminio deformados en caliente y reforzados con partículas de la aleación con memoria de forma CuZnAlNi
Authors: Alaneme Kenneth K. , Bodunrin Michael O. , Chown Lesley H. , Maledi Nthabiseng B.
Published: August 2020

Se investigó el comportamiento del flujo de esfuerzo por compresión y las microestructuras de los compuestos de matriz de aleación de Al deformada en caliente (AMC) y reforzados con partículas de la aleación con memoria de forma (SMA) basadas en CuZnAlNi. La aleación base Al-Mg-Si reforzada con 4, 6 y 8% en peso de Cu-18Zn-7Al-0,3Ni, y 8% en peso de partículas de SiC, se obtuvieron mediante agitación doble y se sometieron a pruebas de compresión en caliente a una velocidad de deformación de 1,0 s−1, temperatura de 400 °C, y ~60% de defor­mación global constante, para ello se utilizó un simulador termo-mecánico Gleeble 3500. Las microestructuras iniciales y deformadas de los compuestos se examinaron utilizando microscopía óptica. El uso de partículas Cu-18Zn-7Al-0,3Ni como refuerzo dio como resultado el desarrollo de una estructura de matriz más fina en comparación con el SiC. La tensión de flujo y la dureza de los AMC reforzados con partículas de Cu-18Zn-7Al-0,3Ni fueron generalmente más altos que los de la aleación de Al no reforzada y la aleación de Al reforzada con SiC. También la tensión de flujo y, en gran medida, la dureza creció con el aumento en el porcentaje en peso de partículas de Cu-18Zn-7Al-0,3Ni en el AMC. La mejora observada con el uso de partículas de la aleación Cu-18Zn-7Al-0,3Ni se atribuyó a la combinación del refuerzo mejorado y el refinamiento del tamaño grano de la matriz, fortalecimiento la interface, el esfuerzo residual de compresión, la alta conductividad térmica, y la capacidad de amortiguación ofrecida por la aleación Cu-18Zn-7Al-0,3Ni.
The Use of Electronic Educational Resources and Innovative Educational Technologies in University Education
Authors: Maslova Inga , Burdina Gulnara , Krapotkina Irina
Published: August 2020

The penetration of digital technologies in the field of human sciences requires the use of more diverse teaching methods and techniques. Electronic educational resources (EER), which include a whole range of educational materials, allow varying the forms of teaching and contribute to improving the quality of education. This study analyses international experience in the development and implementation of EER and offers a practical description for organizing electronic teacher education with the bachelor's degree programmes. We tried to consider the specificity of using e-learning in the field of human sciences, specifically history. The study describes original development of electronic educational resources that have effectively proven themselves when working with students: the Eureka forum, creating a database project, text analysis of academic articles and creating a digest of scientific research on the problem. The study offers e-learning techniques that allow in a digital environment to preserve the traditional learning model – lecture-and-book model. To determine the impact of the e-learning, we conducted a survey among 98 students to evaluate the degree of involvement in the e-learning process and to obtain an assessment of its use in teaching practice. The study results can be practically used for creating new electronic educational resources focusing on distance education.
Evaluation of Online Teaching Quality of Basic Education Based on Artificial Intelligence
Authors: Li Moyan , Su Yawen
Published: August 2020

In the age of the Internet, basic education faces several new challenges: the lack of deep integration of artificial intelligence (AI), and the relatively poor quality of online teaching. To cope with these challenges, this paper designs an evaluation method for online teaching quality of basic education in the context of the AI. Firstly, the application of the AI in basic education was analyzed, and the promoting effect of online teaching on basic education was confirmed. On this basis, the entropy weight method and grey clustering analysis were introduced to evaluate the online teaching quality of basic ed-ucation. Based on the proposed model, several strategies were proposed to improve the quality of online teaching in basic education. The research re-sults provide a good reference for the application of online teaching and AI in basic education.
IoT-School Attendance System Using RFID Technology
Authors: El Mrabet Hicham , Ait Moussa Abdelaziz
Published: August 2020

Nowadays, the world has known great changes which accelerated the mode of life. Students, on their part have become to expect a stimulating and simple learning experience which takes into consideration this quick pace and helps them solve the stereotypical problems of learning. The analyses conducted in this paper revealed that the recording of attendance in classrooms is done at the expense of the teaching- learning time. Therefore, the article at hand seeks to investigate an effective means to record attendance in a way which doesn’t hinder learning. Differently put, the educational and administrative staffs need to find an effective way to record students’ attendance at presential at the beginning of each learning session without affecting the time allotted to teaching and learning. This article presents and discusses the smart attendance monitoring system in smart classroom as a means to reduce the dropout rate, using connected objects and RFID technology. This system can facilitate the recording of students’ attendance via the Internet of things (IoT) at presential while transmitting attendance record to the administration. At the same time, parents can keep track of their children's attendance to classes through a notification they receive via Email or SMS. In addition, the system automatically sends missed lessons to absent students.
Putting ePortfolios into Practice: Willingness of School Principals to Use the ePortfolio as a Hiring Tool in Poland and Spain
Authors: Ciesielkiewicz Monika , Bonilla Claire , Olave López de Ayala Carlos
Published: August 2020

The ePortfolio has been used extensively in education in various countries and for diverse career paths. It is a dynamic platform that students can use to compile and formulate a digital presentation using different types of media which can be updated and adapted for distinct purposes and audiences. Because the ePortfolio is, by nature, flexible and adaptable, it can be developed over the course of a student’s studies and be easily incorporated into professional networking platforms as a job search tool. The objective of this study was to assess and compare the willingness of school principals from Poland and Spain to use the ePortfolio as a hiring tool.  The authors also sought to ascertain whether the number of employees in the participants’ schools or previous contact with ePortfolio affected their opinion of it as a hiring tool. Participants took a survey after reviewing examples of career ePortfolios, and their answers were tabulated and analyzed. The results show that principals from both countries would be inclined to use the ePortfolio as a hiring tool, and that neither previous contact nor number of employees significantly affected their opinion. These results are significant as they demonstrate a broad willingness to implement the ePortfolio as a hiring tool, that was not significantly affected by country or size of school. It is also relevant that this broad support was shared by principals who were unfamiliar with the ePortfolio before participating in this study.
Design and Implementation of Interactive Mobile Application for Autistic Children in Physical Education Class
Authors: Chaichitwanidchakol Pitsanu , Feungchan Witcha
Published: August 2020

Each autistic child has different characteristics and severity of symptoms ranging from not being able to do daily routine tasks such as exercising by themselves to not being able to care for themselves and needing caretakers to look after them for most of the time. In the Autistic Research Centre, Khon Kaen University Demonstration School, Thailand, every morning, one of their routine tasks is exercise, especially on the treadmill, which can reduce their weight and improve their focus on school during the day. The aim of this research is to find video interaction in the form that encourage autistic children’s exercise on a treadmill suitable for individual child. Six interaction techniques were designed and tested. The techniques included: Face Detection (FD), Upper Body Detection (UBD), Color Detection (CD), QR Code Detection (QCD), Motion Detection (MD), and Adaptive Video Interaction (AVI). All interactions were developed on the iOS platform and tested on eight autistic children. Each child was tested at least 12 sessions on the treadmill, and performance of the six techniques were evaluated from the accuracy of application detecting the child’s presence on the treadmill compared to the actual number of times that each child disappeared. The results showed that the AVI was the most suitable technique for autistic children with an average accuracy rate of 92.31%. The study shows that the application is able to reduce the caretaker’s burden and motivate autistic children to focus while exercising.
Biological Activities and Optimal Conditions for Making Khlu Tea
Authors: Polyium Udomdeja , Sakulyunyongsuk Nopporn
Published: August 2020

This research aims to study the biological activities of Khlu (Pluchea indica (L) Less) for the development of herbal tea. The leaves of Khlu were analyzed, including proximal composition using the AOAC method, antioxidant by DPPH radical scavenging assay, and total phenolic content by Folin-Ciocalteu's method. The sensory quality assessment of Khlu tea with randomized complete block design (RCBD). The mean was analyzed for the variance of ANOVA and analyzed for the difference of mean values using LSD method. The results showed that the fresh and dried leaves of methanol extract were showed the optimal of the DPPH values and the highest of total phenolic content. The optimal condition for the process of making Khlu tea was the temperature at 70 °C for 7 hours. The scores of sensory evaluation in terms of appearance, color, aroma, flavor (astringent) and overall were 7.37 ± 1.22, 7.23 ± 1.16, 6.97 ± 1.30, 7.00 ± 1.14 and 7.63 ± 1.10, respectively. These represent the potential of food crops for food sustainable use of biodiversity.
The Effect of Annealing Temperature on Structure of TiCrN Thin Film Deposited by DC Magnetron Sputtering Method
Authors: Buranawong Adisorn , Witit-Anun Nirun
Published: August 2020

The DC reactive magnetron sputtering method was employed to deposit Titanium Chromium Nitride (TiCrN) thin film on silicon (100) substrates. The coatings were annealed at different temperature from 700°C to 1000°C with increase step of 100 °C in air for 2 h. The crystal structure, surface morphologies, microstructure and chemical compositions were investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy (EDX). The x-ray patterns confirmed the TiO2 rutile structure with strong preferred orientation of (101) plane was appeared from 700°C. The crystallinity of film increased with the annealing temperatures. The lattice constant (a and c) were in the range of 4.565 – 4.607 Å and 2.946 – 2.956 Å. The void between grain boundaries was confirmed by FE-SEM micrograph. The cross-sectional analysis revealed that the porous structure with enhancement of thickness from 1.64 - 1.95 μm were obtained as increase annealing temperatures. The EDX results indicated that the O content increase from 0 – 60.67 At% whereas the Ti, Cr, and N contents were decreased from 43.26 - 22.40 At%, 20.65 – 2.57 At% and 51.19 – 14.36 At% through the annealing temperatures.
Thermal Conductivity Properties of Summer Cooling Towels
Authors: Lam Yim Ling , Wang Wen Yi , Kan Chi Wai , Viengsima Maturod , Manarungwit Kasem , Sasithorn Nongnut , Pattavanitch Jitti , Mongkholrattanasit Rattanaphol
Published: August 2020

This study evaluated the cooling properties of summer cooling towels of different brands by studying the liquid moisture management behavior. All the samples were found to provide a cooling effect at first contact after being wetted. The samples of Perfect Fitness showed the highest cooling effect followed, whereas N-rit, Cooldyxm and Ice Towel samples had the poorest cooling effect. Through this study, the general cooling effect of summer cooling towels in the market can be compared which provide some idea to the consumer for product selection.