bluuebunny/crossref_metadata_2025 huggingface dataset:
ẢNH HƯỞNG CỦA SAI SỐ LẮP DỰNG ĐẾN NỘI LỰC VÀ CHUYỂN VỊ CỦA KẾT CẤU KHUNG THÉP NHÀ CÔNG NGHIỆP
Authors: Trần Nhất Dũng
Published: September 2022

Bài báo nghiên cứu đánh giá mức độ ảnh hưởng của sai số lắp dựng giữa các bộ phận của kết cấu nhà thép tiền chế dạng khung Zamil. Sử dụng phần mềm Vn3DNC được tác giả lập trình theo phương pháp lý thuyết phần tử hữu hạn, mức độ ảnh hưởng này đến nội lực và chuyển vị của kết cấu khung thép nhà công nghiệp được xác định về định tính và định lượng, làm cơ sở đưa ra các khuyến nghị cho các thiết kế kết cấu tương tự.
NGHIÊN CỨU CHUYỂN VỊ TẠI ĐỈNH MỐ CỦA CẦU CONG TOÀN KHỐI NHIỀU NHỊP VÀ GIẢI PHÁP LIÊN KẾT CỌC VỚI MỐ CẦU TOÀN KHỐI
Authors: Nguyễn Mạnh Hà
Published: September 2022

Bài báo trình bày kết quả khảo sát ảnh hưởng của số lượng nhịp cầu cong toàn khối đến sự làm việc của mố cầu dưới tác dụng của tổ hợp tải trọng. Từ kết quả thu được, đưa ra kết quả liên hệ giữa chuyển vị và góc xoay đỉnh mố cầu toàn khối vào số lượng nhịp cầu. Từ đó đề xuất cấu tạo chi tiết kèm theo mô hình tính và công thức xác định chiều dài tối thiểu phần cọc cần ngàm trong mố cầu toàn khối theo tiêu chuẩn ACI-318 và TCVN 11823:2017.
PHÂN TÍCH SỰ TRUYỀN NHIỆT TRONG MẶT ĐƯỜNG BÊ TÔNG XI MĂNG THEO MÔ HÌNH TRUYỀN NHIỆT BA CHIỀU
Authors: Trần Nam Hưng
Published: September 2022

Bài báo này nghiên cứu sự truyền nhiệt trong mặt đường bê tông xi măng đường ô tô và sân bay với nhiệt độ bề mặt tấm được tính toán từ các số liệu quan trắc. Các phân tích được thực hiện dựa trên một mô hình ba chiều. Kết quả tính toán đã chỉ ra được nhiệt độ tại vị trí bất kỳ theo chiều sâu tấm bê tông và tại thời điểm bất kỳ trong ngày, hơn nữa, giá trị và thời điểm đạt được của gradient nhiệt độ trung bình lớn nhất trong tấm luôn phụ thuộc vào chiều dày tấm.
Formulation and evaluation of fast dissolving films embedded with nanoparticles of mirtazapine hydrochloride
Authors: Maqbool Afshan , Aamir Muhammad Naeem , Naeem Muhammad
Published: September 2022

Objectives: The goal of this research was to produce fast dissolving film embedded with nanoparticles of mirtazapine hydrochloride. Method: Semisynthetic polymer (HPMC) is used to prepare orodispersible films which is prepared by solvent casting method and nanoparticles were formed by ion gelation method from chitosan and STPP. Fourier transform infrared spectroscopy and scanning electron microscopy demonstrated that all ODF constituents were compatible with one another. Different physico-chemical, mechanical characteristics, morphological examination and in vitro drug release investigations evaluation were used to assess and evaluate ODFs. Results: All formulations have disintegration times of less than 70 seconds. Mirtazapine hydrochloride content consistency in all ODFs ranged from 95.7% to 99.1%. These values revealed that the ODFs were strong and flexible enough. Tensile strength of oral films measured as 10.82±1.8 to 28.31±1.5, and percent elongation was 3.23±0.63 to 10.04±0.27. The ODFs had a smooth surface with uniform distribution of nanoparticles and all constituents, according to scanning electron microscopy. Mirtazapine hydrochloride were released from ODFs 20 to 25 minutes, according to in vitro drug release experiments. After stability tests, no significant differences in physicochemical and mechanical parameters were found in any of the formulations. Conclusion: The formulation of nanoparticles of mirtazapine hydrochloride were successfully developed and embedded on fast dissolving film, which was prepared, in vitro release of film was observed for specific time.
The role of biodiversity in food security
Authors: Abdurazak Sufiyan
Published: September 2022

Currently, the world population is increasing at an alarming rate and production of food should be increased. Biological Diversity or biodiversity component particularly agro-biodiversity such as crop and horticultural biodiversity, animal biodiversity, Forest biodiversity, and microbial biodiversity are essential to world food security. Crop and horticultural biodiversity are important to food security because they are a source of food, fodder for livestocks, carry gene for desirable traits or characteristics, and also are a foundation for crop improvements. In addition, terresterial and aquatic animal biodiversity play an important role in increasing food security including as source of food, alternative source of food, and breed improvement and source of gene for desired trait. Furthermore, animal biodiversity plays indirect role in food security as the skins are sold to purchase food in return, and also as a there dung are used to increase soil fertility there by increasing crop production. Forest genetic resource are also vital for food production and security in many ways. Maintaining soil fertility, income generation and employment, as a source of food and increasing food production, source of fodder and soil erosion control are the main ways by which forest biodiversity contribute to food security. The other component of biodiversity which is microbial biodiversity contribute to food security through increasing plant growth, increasing soil fertility and nutrient cycling. Generally, collection, conservation and sustainable use of biological diversity without compromising future will be necessary and and is vital to food security now and even more so in the future.
SARS-CoV-2 (Covid-19): Prevención de la Enfermedad y Atención Clínica del Paciente Infectado
Authors: López García Nancy Del Carmen , Pacheco Correa Sonia Isabel , Guanoluisa Tenemaza Gladys Elyzabeth , Facuy Arias Luisa María
Published: September 2022

En el marco de la lucha contra la pandemia global y de los esfuerzos conjuntos que realiza la comunidad científica mundial, se genera en tiempo real, gran cantidad de información clínica y epidemiológica relevante, que la dinámica y curso de los acontecimientos, obliga a actualizar periódicamente con nuevas evidencias que surgen de la investigación. En este libro se recopila y organiza parte importante de la información generada por la comunidad científica mundial.
Farmacología Básica
Authors: Mazacón Mora Maite Cecilia , Hurtado Astudillo Janeth Reina , Otero Tobar Lídice Lorena , Espin Mancilla Yngrid Paola
Published: September 2022

La historia de la farmacología como la ciencia dedicada al estudio de todos los aspectos de los medicamentos se remonta a los inicios de la humanidad, lo más probable es que haya comenzado cuando se empleó por primera vez un vegetal para aliviar los síntomas de una enfermedad. Como disciplina o ciencia independiente su historia se limita al corto periodo de unos ciento cincuenta y ocho años ya que se inicia a mediados del siglo XIX. Etimológicamente la palabra farmacología proviene del griego, pharmacon (φάρμακον), fármaco y logos (λόγος), ciencia.
La Biomasa Hidropónica de Maíz como Alimento para Caprinos Criollos en Crecimiento-Ceba
Authors: Acosta Lozano Néstor , Lima Orozco Raciel
Published: September 2022

Este libro tiene como base un estudio de campo realizado en la zona de la Península de Santa Elena, la investigación se propuso resolver la situación alimentaria de la cría de caprino en un espacio con poco acceso al agua, semi árido y con bajas precipitaciones. Las cabras, históricamente, se consideran de los primeros animales domesticados por el hombre y de allí proviene su importancia y valor para la sobrevivencia de la humanidad.
Controlador Difuso en Arduino Uno para un Entorno Académico
Authors: Avilés-Castillo Fátima , Buele Jorge , Espinoza John
Published: September 2022

Los procesos de enseñanza – aprendizaje requieren una constante actualización y la incorporación de nuevos enfoques. Para esto las instituciones de educación superior necesitan realizar importantes inversiones económicas o buscar alternativas de menor costo. Por ello en este artículo se presenta la implementación de un algoritmo de control difuso en una tarjeta embebida Arduino Uno. El diseño del controlador difuso se realiza con cinco funciones de membresía tanto a la entrada como a la salida SISO (entrada simple/salida simple). Como entrada se tiene el valor del error acumulado que es la diferencia entre el valor deseado y el valor medido. Las pruebas de simulación se efectuaron en el entorno de diagrama de bloques Simulink de MATLAB. Mientras que las pruebas experimentales se desarrollaron en una estación didáctica que imita un proceso de control de presión industrial. También se obtienen otros parámetros que son parte de las curvas de proceso para un mejor análisis. De esta manera se valida esta propuesta, ofreciendo información para futuras investigaciones
Labour law for physiotherapists in Poland
Authors: Durlak Damian
Published: September 2022

Every employee is responsible for their basic knowledge of labour law. Getting acquainted with relevant laws and regulations may save an unaware employee from being sued by the employer or provide grounds for pursuing their claims when the employer violates the employee’s interest. This is particularly important in the case of medical professionals. Physiotherapists, as employees of one of the medical professions, are covered by different regulations regarding, for example, working hours or remuneration for work outside working hours. The prevailing COVID-19 pandemic additionally contributed to the introduction of new regulations that would change the way medical employees perform work. The objective of this study is to present the most important information about labour law from the point of view of a physiotherapist.
Deep Learning for Forgery Face Detection Using Fuzzy Fisher Capsule Dual Graph
Authors: Arunkumar P. M. , Sangeetha Yalamanchili , Raja P. Vishnu , Sangeetha S. N.
Published: September 2022

In digital manipulation, creating fake images/videos or swapping face images/videos with another person is done by using a deep learning algorithm is termed deep fake. Fake pornography is a harmful one because of the inclusion of fake content in the hoaxes, fake news, and fraud things in the financial. The Deep Learning technique is an effective tool in the detection of deep fake images or videos. With the advancement of Generative adversarial networks (GAN) in the deep learning techniques, deep fake has become an essential one in the social media platform. This may threaten the public, therefore detection of deep fake images/videos is needed. For detecting the forged images/videos, many research works have been done and those methods are inefficient in the detection of new threats or newly created forgery images or videos, and also consumption time is high. Therefore, this paper focused on the detection of different types of fake images or videos using Fuzzy Fisher face with Capsule dual graph (FFF-CDG). The data set used in this work is FFHQ, 100K-Faces DFFD, VGG-Face2, and Wild Deep fake. The accuracy for FFHQ datasets, the existing and proposed systems obtained the accuracy of 81.5%, 89.32%, 91.35%, and 95.82% respectively.
Willingness to buy US products in three Southeast European countries: The effects of cognitive, affective and conative components of country-of-origin image
Authors: Iversen Nina M. , Hem Leif E. , Olsson Ulf H.
Published: September 2022

The objective of this research is to present results from a survey conducted in Croatia, Serbia, and Bosnia-Herzegovina, addressing the negative influence of warfare by USA upon consumer behavior in the region. The results show that perceptions generated from USA’s general country image influence consumers’ intentions to buy American-made products. Furthermore, country “goodwill” and “bad-will” create cognitive and affective ambivalence, which concurrently promote and hamper consumers’ willingness to buy foreign products. Facets of USA’s general country image create mixed emotions, which influence approach and avoidance behavior towards US imports. USA’s country image concurrently impacts product-specific perceptions, ethnocentric tendencies, animosity, and admiration/affinity, influencing the propensity to buy American-made products among consumers in Croatia, Serbia, and Bosnia-Herzegovina.
Einführung in die Soziale Arbeit
Authors: Mennemann Hugo , Dummann Jörn
Published: September 2022

This introductory book, now in its fourth, extended and updated edition, will answer questions from students in their first semester of social work on the study, identity, profession and discipline of social work in understandable language. Its exercises, selected literature, instructions and index will stimulate the reader to engage in self-study, and its contents were developed with students and have been developed continuously since its first edition. Much of the book’s content, such as the development of an identity core and an overview of epistemology, was specifically developed for this introduction to facilitate access to more complex subject matter. The book can be used as a basis for developing lectures, tutorials and testing.
Gesundheitsökonomie
Authors: Greß Stefan , Schnee Melanie , Jesberger Christian
Published: September 2022

This textbook explains basic economic concepts in healthcare in an understandable and application-oriented manner. Economic incentives and instruments are explained throughout using concrete subject areas and control mechanisms. The book is suitable for students on health science courses who have no previous knowledge of the subject and who want to learn the basics of health economics. The explanations link concrete institutions and economic control mechanisms, and the interaction between specific actors and institutions forms an important framework for the book’s economic analysis of healthcare systems. Didactic elements such as comprehension, discussion and test questions enliven the text.
Horizontal Violence Toward Emergency Medicine Residents: Gender as a Risk Factor
Authors: Jacobson Ashley , Colletti James , Raukar Neha
Published: September 2022

Introduction: Horizontal violence (HV) is defined as “persistent exposure to interpersonal aggression and mistreatment from colleagues.” Our objective in this pilot, single-site study was to identify sources of HV toward emergency medicine (EM) residents, using the Negative Acts Questionnaire-Revised (NAQ-R).

Methods: In this investigation we used a descriptive cross-sectional survey design to categorize HV. All voluntary participants were residents in an Accreditation Council for Graduate Medical Education- approved, three-year academic EM residency. Data were collected via electronic survey and occurred six months into an academic year. We collected demographic information and responses to the NAQ-R in 2020. Horizontal violence is subdivided into three categories: work-related; person-related; and physical intimidation. Emergency medicine residents answered questions as they related to their interactions with residents and support staff, which included nursing.

Results: A total of 23 of 26 residents responded (89%). Participants were 56% women, 78% white, 11% Hispanic, and 89% heterosexual. Participant clinical year was 39% first-, 39% second-, and 22% third-year residents. Women reported a higher frequency of HV compared to men (1.3 vs 1.1,
P =.01). By category, women indicated higher incidence of work-related violence from other residents (P = .05) and staff (P =.02). There was no difference in reported frequency of violence for interns compared to senior residents.

Conclusion: Our pilot study demonstrated horizontal violence toward EM residents exists and is more prevalent in women.
Banco de sementes de áreas alto-montanas em regeneração natural pós-distúrbio no Planalto Sul-Catarinense
Authors: Duarte Edilaine , Silva Ana Carolina , Higuchi Pedro , Bortoluzzi Roseli Lopes da Costa , Larsen Janaina Gabriela , Nunes Amanda da Silva , Silva Mariéle Alves Ferrer da , Dallabrida Juliana Pizutti
Published: September 2022

Objetivou-se verificar a composição florístico-estrutural das plântulas regenerantes a partir do banco de sementes de três áreas em recuperação pós-distúrbios antrópicos, em ambientes alto-montanos do Parque Nacional de São Joaquim. As áreas 1 (A1) e 2 (A2) foram originadas da regeneração após o corte de remanescentes florestais e a área 3 (A3) foi originada da regeneração de campo nativo após práticas de pastoreio. As três áreas encontram-se protegidas há quase dez anos após a finalização dos distúrbios. Foram instaladas transecções de 20 × 100 m em cada área, subdivididas em 20 parcelas de 10 × 10 m, nas quais foram coletadas amostras de solos e serapilheira, totalizando 60 amostras. Os materiais coletados foram conduzidos à casa de vegetação, onde foram submetidos ao mesmo tratamento, com irrigação diária por aspersão. Foi realizada a avaliação quali-quantitativa mensal das plântulas emergentes, identificando-as e classificando-as quanto à origem (nativa ou exótica) e às formas de vida. Foram amostradas 5.604 plântulas, distribuídas em 62 táxons. Houve predominância de espécies herbáceas (74,2%) e nativas (67,7%), sendo Cyperus odoratus L. e Juncus capillaceus Lam. as mais abundantes. As áreas originadas a partir de desmatamentos apresentaram maior heterogeneidade de espécies e hábitos e maior densidade de plântulas regenerantes do banco de sementes, quando comparado com a área de Campo de Altitude. Conclui-se que o banco de sementes das áreas alto-montanas estudadas apresenta potencial de colonização imediata após distúrbios, com elevada riqueza e densidade de espécies herbáceas, que garantem o recobrimento do solo e, assim, o início e o suporte necessário para o avanço da dinâmica sucessional.
Propagação vegetativa, produtividade de minicepas e determinações metabolômicas de 4 espécies do gênero Tibouchina
Authors: Latoh Leandro Porto , Sant'Anna-Santos Bruno Francisco , Koehler Henrique Soares , Zuffellato-Ribas Katia Christina
Published: September 2022

O gênero Tibouchina apresenta aproximadamente 350 espécies, dentre elas, Tibouchina affinis fothergillae, Tibouchina heteromalla, Tibouchina moricandiana var. vinaceae e Tibouchina sellowiana. Por se tratarem de espécies nativas do Brasil, podem ser utilizadas para revegetação de áreas antropizadas, devido à característica pioneira. A presente pesquisa objetivou estudar a propagação vegetativa via miniestaquia, utilizando ácido indol butírico (AIB) e ácido fúlvico (AF), bem como realizar determinações bioquímicas e quantificar a produtividade de minicepas destas espécies. Os propágulos foram coletados de um minijardim clonal, nos meses de abril, junho, setembro e novembro/2017, confeccionados com 5+1 cm de comprimento, corte em bisel na base e reto no ápice, mantendo-se um par de folhas reduzidas à metade. As bases das miniestacas foram submetidas aos tratamentos: 0 mg L-1AIB/AF, 2000 mg L-1AIB, 2000 mg L-1AF e 2000 mg L-1AIB+AF. O experimento foi instalado utilizando-se tubetes de 53 cm³ com vermiculita, avaliados após 33 dias de permanência em casa de vegetação, considerando-se a porcentagem de enraizamento das miniestacas. O delineamento foi inteiramente casualizado, num esquema fatorial de 4x4 (quatro épocas de coleta x quatro tratamentos), conduzido individualmente/espécie. As espécies não responderam aos tratamentos com AIB/AF. Nas diferentes épocas de coleta dos propágulos, o enraizamento foi superior a 95% para todas as espécies em abril, setembro e novembro, exceto para Tibouchina sellowiana com 49% de enraizamento no mês de novembro, demonstrando o efeito direto das condições ambientais as quais as plantas matrizes estavam sujeitas, sob a rizogênese. Conclui-se que não há necessidade da aplicação de AIB/AF para a propagação vegetativa das diferentes espécies de Tibouchina, sendo viável o uso da técnica de miniestaquia. Visando a maior produtividade de miniestacas, recomenda-se coletar os propágulos em abril para Tibouchina affinis fothergillae e Tibouchina moricandiana var. vinaceae, em novembro para Tibouchina heteromalla e em junho para Tibouchina sellowiana.
Modelagem das relações morfométricas com a produção de pinhas de Araucaria angustifolia (Bertol.) Kuntze no sul do Brasil
Authors: Atanazio Kemely Alves , Hess André Felipe , Krefta Sandra Mara , Schorr Luis Paulo Baldissera , Souza Isadora de Arruda , Domiciano Carlos Alberto Ramos , Cuchi Tarik , Moraes Giselli Castilho
Published: September 2022

As relações morfométricas referem-se ao espaço que uma árvore precisa para se desenvolver e auxiliam nas práticas de manejo da floresta. Diante disso, o estudo objetivou ajustar modelos entre as relações morfométricas e a quantidade de pinhas de sítios florestais de Araucaria angustifolia (Bertol.) Kuntze localizados em Lages, Bom Jardim da Serra e Painel, Santa Catarina. A amostragem voltou-se para as árvores femininas produtoras de pinhas, sendo mensuradas as variáveis circunferência a 1,30 metros da superfície do solo, altura total, número de pinhas, altura de inserção de copa e os quatro raios de copa. Posteriormente, foram calculados o diâmetro a 1,30 metros da superfície do solo, o comprimento de copa, a área de copa, a proporção de copa, o diâmetro de copa, índice de abrangência, índice de saliência, grau de esbeltez, formal de copa e o número potencial de árvores por hectare para cada área de copa. Com o conjunto de dados, foram calculadas as estatísticas descritivas de cada variável e realizada a análise da correlação de Pearson, que possibilitou a modelagem da quantidade de pinhas em função das variáveis morfométricas com maior correlação. Os resíduos dos modelos ajustados foram submetidos aos testes de normalidade, homogeneidade das variâncias e interdependência de erros, sendo utilizados os modelos lineares generalizados. A média de produção de pinhas e das variáveis dendromorfométricas mais elevadas foram encontradas no sítio florestal de Lages. As variáveis independentes diâmetro, proporção de copa, comprimento de copa e diâmetro de copa apresentaram correlação de 0,23, 0,15, 0,18 e 0,20%, respectivamente. Os resultados dos modelos mostraram que a quantidade de pinhas tem maior relação com o diâmetro e variáveis de copa, indicando que o manejo florestal deve proporcionar espaço lateral para o bom desenvolvimento das copas, pois auxilia na produção de pinhas e na redução da competição.
Fatores que afetam a produtividade na cultura da erva-mate
Authors: Goulart Ives Clayton Gomes dos Reis , Santin Delmar , Brasileiro Bruno Portela
Published: September 2022

A erva-mate (Ilex paraguariensis) é uma espécie nativa do Brasil e fortemente ligada à cultura e à história dos estados da região sul do Brasil, seu maior produtor e exportador mundial. Entretanto, o desempenho produtivo dos ervais cultivados brasileiros vem diminuído ao longo dos últimos anos, a despeito das tecnologias de produção à disposição dos produtores. Diante disso, o objetivo deste trabalho foi estudar fatores que afetam a produtividade em função de níveis de produtividade da erva-mate cultivada. Para tanto, foram coletados dados a partir da aplicação de questionários estruturados em 470 propriedades rurais, distribuídos em toda a região produtora no Brasil. As propriedades foram agrupadas em níveis de produtividade utilizando a produtividade média e o seu desvio-padrão e a adoção tecnológica foi comparada entre os níveis. Para identificar as tecnologias mais determinantes para a produtividade, foi utilizado o modelo de regressão logística multinomial. De acordo com os resultados obtidos no presente estudo, os ervais cultivados são conduzidos por uma agricultura familiar diversificada, havendo o predomínio do baixo acesso à assistência técnica e ao aporte tecnológico. As propriedades com alto nível de produtividade apresentaram maior adoção tecnológica, maior presença da assistência técnica e maior capacitação da mão de obra. Entre as tecnologias avaliadas, a adubação, as mudas melhoradas, o controle de plantas daninhas, o controle de pragas, as ferramentas de poda e a poda de limpeza foram determinantes para a obtenção de médio e alto nível de produtividade. Dessa forma, políticas públicas que envolvam a capacitação e a transferência de tecnologias devem ser estimuladas no setor ervateiro, a fim de estimular a incorporação de novas tecnologias nos ervais brasileiros.
Contribuições de Antonio Gramsci e Florestan Fernandes para a análise do Escola Sem Partido
Authors: Loureiro Bráulio , Cabral Allena Yandra Dias , Leite Pedro Henrique Fernandes , Franco Lorena Fernanda da Silva
Published: September 2022

No curso dos últimos anos, a profusão de projetos de lei denominados “Escola Sem Partido” revela questionamentos sobre a escola brasileira. Objeções que, de maneira geral, inclinaram-se à crítica de um suposto uso político das instituições de ensino e à defesa de noções como “neutralidade educacional” e “desvinculação ideológica na prática pedagógica”. Diante da projeção alcançada por tais proposições, vale sondar o sentido político de uma iniciativa educacional que busca eliminar o que caracteriza como “contaminação político-ideológica” das escolas brasileiras. Este artigo apresenta resultados de pesquisa sobre o programa elaborado pela organização Escola Sem Partido, fundada em 2004. Mediante pesquisa documental e bibliográfica, o trabalho perscruta as relações de poder e os interesses de classe que permeiam a proposta. Recorre, assim, à contribuição de autores como Antonio Gramsci e Florestan Fernandes, referências que destacam a relevância da dimensão político-econômica na análise educacional.
The newspaper "Soviet Physicist" as a source on the History of the I. V. Kurchatov Institute of Atomic Energy
Authors: Beklyamisheva Alisa Andreevna
Published: September 2022

The article is devoted to the large—circulation newspaper "Soviet Physicist" (now — "Kurchatov") of the I. V. Kurchatov Institute of Atomic Energy (now - SIC "Kurchatov Institute"). Having your own newspaper in a secret scientific institution is a special phenomenon. For a long time, it was printed with a note about the prohibition of removal from the territory. The newspaper was distributed only to employees. Based on archival materials of the SIC "Kurchatov Institute" and the Central State Administration of Moscow, the history of the newspaper is traced from its inception in 1967 to its renaming in 1992. The multi-circulation newspaper was created on the initiative of the Institute's staff.   The general management of it was carried out by the party committee and the local committee of the institute. The pages of the "Soviet Physicist" reflect the life of the "Kurchatov" community in all its diversity. The article introduces a new historical source into scientific circulation and examines its informational potential for research on the history of the Soviet atomic project in general, as well as the main aspects of the life of the Institute's staff community in particular. The newspaper's materials are valuable for the study of social, cultural, political and scientific events and phenomena in the history of the I. V. Kurchatov Institute – the leading Soviet scientific center for nuclear physics.
One master to rule them all
Authors: Barbeito Pablo , Garcia-Gonzalo Francesc R
Published: September 2022

Multiciliated cells rely on the same master regulator as dividing cells to amplify the number of centrioles needed to generate the hair-like structures that coat their cell surface.
Notes from the Editor
Authors: Nimehchisalem Vahid
Published: September 2022

IJELS is pleased to release her second issue of Volume 10 that presents several research articles with very engaging topics and a book review.
Crisis Management, Agile Leadership, and Organizational Culture in Primary Schools
Authors: Çobanoğlu Necati , Demir Selçuk
Published: September 2022

Educational organizations include intense human relations and social interaction. In this respect, the potential for the emergence of crises in educational organizations is quite high. In the literature, agile leadership is a significant type of leadership in which leaders possess an ability to take quick and correct decisions, cope with stress and psychological pressures, and remain calm while managing crises. In addition, a strong, established, and experienced organizational culture is essential in times of crisis. With these aspects, the variables of crisis management, agile leadership, and organizational culture are considered to be related to each other. The relationship between the variables of crisis management, agile leadership, and organizational culture, as well as the direction and size of this relationship, was examined. The study was designed in the correlational model. Teachers working in public primary schools in Malatya during the 2021-2022 academic year were included in the population of the study. In the study, 406 teachers determined by the random method were included in the sample. Data were collected through five-point Likert-type scales including “Crisis Management”, “Agile Leadership”, and “Organizational Culture”. Teachers reported that there was a moderate, positive, and significant relationship between crisis management, agile leadership, and organizational culture. In addition, it was concluded that the agile leadership of the principals and organizational culture could predict crisis management. It is recommended that agile leaders be employed in organizations, agile leadership training be provided, and strong and permanent/continuous cultures be established in organizations to avoid the negative effects of crises on organizations and employees in educational organizations.
The Impact of the Use of Collaborative Writing on Attitude of EFL Students towards Learning Writing Skills
Authors: Yesuf Mohammed Yibre , Anshu Alemu Hailu
Published: September 2022

The main goal of the study was to examine the impact of employing collaborative writing on students’ attitude towards learning EFL writing skills. To this end, based on the mean results of the paragraph a writing skills test was administered before the experiment, two sections of Grade 11 students from Felegebirahn Secondary School in Amhara Region, Ethiopia were chosen as participants of the study. These two sections of students were categorized as experimental (n=44) and control (n=44) groups using simple random sampling technique. The experimental group exercised paragraph level writing tasks collaboratively, whereas the control group practiced the identical writing tasks individually for 12 weeks in the 2019 academic year. Questionnaire, which was intended to find out the attitude of EFL students about learning writing skills before and after the training, was the major data collection tool used in the study. A semi-structured interview with a few selected students was also undertaken to validate the data acquired by the questionnaire. In order to examine the significance of the attitude questionnaire mean differences of the participants within as well as between the selected study groups, T-test was conducted. The results of the study showed that students who experienced collaborative writing for over 12 weeks brought positive attitudinal changes on learning EFL writing skills after being introduced to collaborative writing. It was found that they improved their attitude toward learning writing skills more significantly than students who did the writing tasks alone. The majority of respondents in the open-ended questionnaire and interview data agreed that after exposure to collaborative writing, the students eventually enjoyed and were inspired to write in English. It was concluded that practicing writing tasks collaboratively in EFL writing classes can have a favorable impact on EFL students’ attitude towards learning writing skills. This, in turn, encourages the students to opportunely exercise writing in English both inside and outside their classes. It is, therefore, recommended that teachers in EFL classes should support the students to practice collaborative writing in EFL writing lessons.
Digital Reading and Writing Attitudes of Preservice Elementary Teachers: A Correlational Research
Authors: Bozgun Kayhan , Can Fatih
Published: September 2022

This study aims to examine the relationship between digital reading and digital writing attitudes of preservice elementary teachers. The sample of the research consists of 294 preservice elementary teachers studying at the faculty of education. The research sample was determined using the convenience sampling method. Attitude Scale for Digital Writing, Attitude Scale towards Digital Reading, and Personal Information Form were used as data collection tools. Data were analysed using R Studio software. Independent sample t-test, one-way ANOVA and simple linear regression analysis were used in the analysis process. The findings indicated that the reading attitudes and writing attitudes scores of the preservice elementary teachers did not differ according to gender, age, and grade level. However, it was found that the preservice teachers who stated that they read digital books had a higher level of reading and writing attitudes than the preservice teachers who stated that they did not read. It has been determined that there is a high level of significant relationship between digital reading and writing attitudes. According to the results of the simple linear regression analysis, it was found that the writing attitudes of the preservice elementary teachers who had high digital reading attitude levels were also high. As a result, it can be said that as the digital reading attitudes of the preservice elementary teachers increase, their attitudes towards writing will also increase. Experimental studies can be conducted to determine the effect of reading digital books on digital writing attitudes.
Antimicrobial and cytotoxic effects of marine sponge extracts Agelas clathrodes, Desmapsamma anchorata and Verongula rigida from a Caribbean Island
Authors: Piron Julie , Betzi Stephane , Pastour Jessica , Restouin Audrey , Castellano Rémy , Collette Yves , Tysklind Niklas , Smith-Ravin Juliette , Priam Fabienne
Published: September 2022

Although marine sponges are known for their antimicrobial, antifungal and cytotoxic activity, very few studies have been carried out on endemic species of Martinique. Martinique is part of the Agoa Sanctuary, a marine protected area that includes the exclusive economic zones (EEZ) of the French Caribbean islands, making it an abundant source of marine species. To highlight the potential of this area for the discovery of marine biomolecules with antipathogenic and antitumor activities, we tested the aqueous and ethanolic extracts of sponge species Agelas clathrodes, Desmapsamma anchorata and Verongula rigida. Five bacterial strains: Bacillus cereus (CIP 78.3), Escherichia coli (CIP 54.127), Pseudomonas aeruginosa (CIP A22), Staphylococcus aureus (CIP 67.8) and Staphylococcus saprophyticus (CIP 76125) were evaluated, as well as four tumor cell lines: breast cancer (MDA-MB231), glioblastoma (RES259) and leukemia (MOLM14 and HL-60). Antimicrobial activity was evaluated using the disc diffusion technique by determining the minimum inhibitory and minimum bactericidal concentrations. Tumor cytotoxic activity was determined in vitro by defining the minimum concentration of extracts that would inhibit cell growth. Ethanolic extracts of Agelas clathrodes were bactericidal for Staphylococcus aureus and Staphylococcus saprophyticus strains, as well as strongly cytotoxic (IC50 < 20 µg/mL) on all cancer cell lines. Verongula rigida also showed strong cytotoxic activity on cell lines but no antimicrobial activity. These results are innovative for this species on these bacterial lines, highlighting the potential of sponge extracts from this area as bioactive compounds sources.
Effect of Roasting, Steaming and Internal Temperatures on Proximate Composition, Vitamins and Sensory Properties of Spent Hen Muscle
Authors: Alugwu S. U. , Alugwu U. B.
Published: September 2022

The main aim of the study was to evaluate the impact of different cooking methods and internal cooking temperatures (60 and 700C) on the quality characteristics of spent hen muscle. Five spent hens were slaughtered, bled thoroughly and scalded at 85℃ for 30 sec and defeathered, eviscerated and breast muscles separated and frozen to harden for easy slicing into dimensions. These slices were divided into three portions, one for raw, second portion was treated by roasting (RO) and last portion was treated by steaming (ST). Each slice for cooking was divided into two cooking internal temperatures of 600C and 700C. Fifty gram weighed, inserted and cooked differently at 600C and 700C for 0 and 10 min after thawing. Proximate composition, vitamin content and sensory properties of the cooked samples were studied. The results showed that samples cooked by ST had significantly (p < 0.05) higher mean moisture content of 70.44%, protein content of 18.11%, and fat content of 10.13%. Whereas samples cooked by RO method had higher mean ash content of 1.67%. However, the differences in ash content of these cooking methods were statistically not significant (p > 0.05). Increasing cooking temperature decreased moisture and protein, but increased fat and ash contents of cooked chicken spent hen. The RO cooked samples had significantly (p < 0.05) higher vitamins B1, B2 and B9 contents of 117.72 mg/100 g, 8.51 mg /  100 g and 47.03 mg/100 g, respectively. The RO cooked samples at 700C had higher textural scores and rated by panelist as very much crispy. Increasing cooking internal temperatures increased sensory textural scores of cooked spent hen meat. The flavour of RO cooked samples was higher than ST cooked samples and rated by panelist as moderately desirable.
Effect of Micronutrients (Boron & Zinc) on Growth, Flowering and Quality of Carnation (Dianthus caryophyllus L.) Under Naturally Ventilated Polyhouse Conditions of Prayagraj, India
Authors: Kurbah Saphinee Careen , Fatmi Urfi
Published: September 2022

The present investigation was done to study the effect of micronutrients (Boron & Zinc) on growth, flowering and quality of carnation (Dianthus caryophyllus L.) under naturally ventilated polyhouse conditions of Prayagraj. The experiment was conducted in Randomized Block Design (RBD) with fifteen treatments replicated thrice. Foliar application with three levels of boron (0.05%, 0.1% and 0.15%), three levels of zinc (0.2%, 0.4%, and 0.6%) and treatment combinations of both boron and zinc along with control were applied. Among all the treatments, T2 (B @ 0.1%) recorded significantly taller plants (84.71 cm), more number of leaves (165.47), more number of shoots (7.53), more number of internodes (17.27), higher internodal length (5.21 cm), longer bud (3.63 cm), more bud diameter (2.33 cm), higher flower stalk girth (4.86 mm) and more vase life (11.2 days). However, treatment T6 (Zn @ 0.6 %) exhibited early days for bud initiation (124.27 days), bud opening (14.47 days), 50 percent flowering (138.73 days), more number of cut flower stalks per plant (7.13) and more number of flowers per meter square (178.33) while treatment T5 (Zn @ 0.4 %) exhibited longer flower stalk (66.23 cm) and treatment T10 (B @ 0.1 % + Zn @ 0.2 %) produced good flower diameter (6.62 cm).  Poor flowers were generated by plants that were not given micronutrients. So, T2 (B @ 0.1 %) and T6 (Zn @ 0.6 %) can be applied topically to improve the quality of flowers. Hence, applications of micronutrient are proven to be crucial for improving the vegetative growth, flowering, quality and yield parameters of carnation grown under naturally ventilated polyhouse conditions of Prayagraj.
Contamination of Locally Compounded Poultry Feeds and Ingredients by Fungi of the Genus Penicillium and Aspergillus within Three Agro-Ecological Zones of Nigeria
Authors: Oyekemi Akinmusire Olubamise , Olawale Omomowo Israel , Ekoi Divine Anthony
Published: September 2022

Introduction: Fungi generally are field and storage contaminants of poultry feeds and feed ingredients, the fungal contamination of poultry feeds affects the quality negatively by causing caking, reducing quality and quantity of nutrients, and eventually producing secondary metabolites known as mycotoxins in these products when the environment is conducive. This study was carried out to isolate Aspergillus and Penicillium species from locally compounded poultry feed and feed ingredients that arrived at poultry farms within 30 days.

Method: A total of 52 samples of feed (n=13) and feed ingredients (n=39) were collected across 3 agroecological zones (involving 6 states) of Nigeria. Different mycological media was used for isolation, by deploying the pour plate method. The identity of Aspergilli and Penicilli isolates was characterized using macroscopic and microscopic observed features.

Results: Hundred per cent of the feed samples were contaminated with Aspergillus species while 63% were contaminated with Penicillium species. Nine species of Aspergillus and five species of Penicillium were detected in the feed and feed ingredients. The highest occurring fungal genus was Aspergillus, specifically, Aspergillus niger and Aspergillus flavus species were the highest occurring species. Penicillium glabrum was the most predominant Penicillium species isolated from the compounded poultry feed and feed ingredient samples.

Conclusion: All the feed samples (100%) were contaminated with several species of Aspergillus and Penicillium. The feed ingredients had 100% contamination except for the bone meal samples 78% contamination.
Effectiveness of Acupuncture for Anxiety Among Patients With Parkinson Disease
Authors: Fan Jing-qi , Lu Wei-jing , Tan Wei-qiang , Liu Xin , Wang Yu-ting , Wang Nan-bu , Zhuang Li-xing
Published: September 2022

Importance

One of the ordinary manifestations of Parkinson disease (PD) is anxiety, which remains untreated. Anxiety is closely associated with the accelerated progression of PD. Efficacy of acupuncture for anxiety has been reported. However, to date, there are no data on acupuncture’s effectiveness on anxiety for patients with PD.

Objective

To investigate the effect of acupuncture vs sham acupuncture for treating anxiety in patients with PD.

Design, Setting, and Participants

This is randomized, double-blinded, clinical trial enrolled patients between June 20, 2021, and February 26, 2022. Final follow-up was April 15, 2022. Patients with Parkinson disease and anxiety were allocated randomly (1:1) to receive acupuncture or sham acupuncture for 8 weeks. Acupuncture operators, outcome measures evaluators, and statistical analysts were blinded to the grouping of patients. Patients were blinded to their own grouping during the study. This study took place in the Parkinson clinic of a hospital in China.

Interventions

Real acupuncture or sham acupuncture for 8 weeks.

Main Outcomes and Measures

Primary outcome was Hamilton Anxiety Scale (HAM-A) score. Secondary outcomes were scores on the Unified Parkinson Disease Rating Scale (UPDRS), 39-item Parkinson Disease Questionnaire (PDQ-39), and serum levels of the adrenocorticotropic hormone (ACTH) and cortisol (CORT).

Results

Seventy eligible patients were enrolled, including 34 women (48.5%) and 36 men (51.4%). Sixty-four patients (91%) completed the intervention and the 8-week follow-up, including 30 women (46.9%) and 34 men (53.1%) with a mean (SD) age of 61.84 (8.47) years. At the end of treatment, the variation of HAM-A score was 0.22 (95% CI, –0.63 to 1.07; P = .62) between the real acupuncture and sham acupuncture groups. At the end of follow-up, the real acupuncture group had a significant 7.03-point greater (95% CI, 6.18 to 7.88; P < .001) reduction in HAM-A score compared with the sham acupuncture group. Four mild adverse reactions occurred during the study.

Conclusions and Relevance

This study found acupuncture to be an effective treatment for anxiety in patients with PD. These findings suggest that acupuncture may enhance the wellbeing of patients who have Parkinson disease and anxiety.

Trial Registration

Chinese Clinical Trial Registry: ChiCTR2100047253
Comparison of Severity of Genitourinary Syndrome of Menopause Symptoms After Carbon Dioxide Laser vs Vaginal Estrogen Therapy
Authors: Jang Yeu-Chai , Leung Chi Yan , Huang Hsi-Lan
Published: September 2022

Importance

Vaginal estrogen for genitourinary syndrome of menopause (GSM) should be used with caution in women with contraindications, highlighting the need for effective treatment alternatives.

Objective

To compare the severity of GSM after vaginal laser vs estrogen therapy.

Data Sources

The PubMed, Embase, and Cochrane Library databases were searched for articles published from database inception to April 8, 2022, with no language restrictions. Reference lists were also searched.

Study Selection

Randomized clinical trials (RCTs) that compared the use of lasers with vaginal estrogen in adults were selected.

Data Extraction and Synthesis

Two investigators independently extracted data from included studies. The Cochrane risk of bias tool for RCTs was used to assess risk of bias of each study. A random-effects model was used to pool mean differences (MDs) with 95% CIs.

Main Outcomes and Measures

Primary outcomes were Vaginal Analog Scale (VAS; higher scores indicate severer symptoms), Vaginal Health Index (VHI; higher scores indicate better vaginal health), Vaginal Maturation Index (VMI; higher scores indicate higher estrogen effect on the vaginal epithelium), Female Sexual Function Index (FSFI; higher scores indicate better female sexual function), and Sexual Quotient–Female (SQ-F; higher scores indicate better female sexual function) questionnaire scores. Urinary symptoms were assessed as an additional outcome. Data analyses were performed from April 9 to 12, 2022.

Results

A total of 6 RCTs with 270 women with GSM were included (135 were randomized to laser therapy and 135 to estrogen therapy; mean age ranged from 54.6 to 61.0 years). No significant differences were found between carbon dioxide laser and vaginal estrogen from baseline to the end of follow-up in overall VAS scores (MD, −0.16; 95% CI, −0.67 to 0.36; I2, 33.31%), VHI (MD, 0.20; 95% CI, −0.56 to 0.97; I2, 83.25%), VMI (MD, −0.56; 95% CI, −1.14 to 0.02; I2, 35.07%), FSFI (MD, −0.04; 95% CI, −0.45 to 0.36; I2, 41.60%), and SQ-F (P = .37 based on 1 study). Other questionnaire-based outcome measures demonstrated no difference between groups from baseline to the end of follow-up for changes in urinary symptoms.

Conclusions and Relevance

This systematic review and meta-analysis of RCTs found that vaginal laser treatment is associated with similar improvement in genitourinary symptoms as vaginal estrogen therapy. Further research is needed to test whether vaginal laser therapy could be a potential treatment option for women with contraindications to vaginal estrogen.
Crystallization Behavior and Sensing Properties of Bio‐Based Conductive Composite Materials
Authors: Abbel Robert , Greene Angelique F. , Quilter Helena , Leveneur Jérôme , Risani Regis , Barbier Maxime , West Mark , Collet Christophe , Kirby Nigel M. , Sorieul Mathias
Published: September 2022

Poly(3‐hydroxyoctanoate) (PHO), a biocompatible polymer with a skin‐like feel produced by bacterial fermentation, is compounded with carbon nanofibers (CNFs) or carbon black (CB), respectively, to form flexible, 3D printable, bio‐based conductive composites. Conductivities up to 10 and 3 S m−1 can be achieved for CNF and CB, respectively, without negatively affecting the composites’ processability. Both filler materials act as nucleating agents for PHO crystallization, significantly accelerating this process which is extremely slow for the filler‐free polymer. Mechanical performance, for example, elastic modulus, is also improved by the addition of CNF or CB. Both types of filler form composites that show a distinct response to mechanical deformation: bending, twisting, and stretching (up to 10% elongation) result in a marked decrease in their electrical resistance (up to 30%). This phenomenon has been exploited to fabricate a 3D‐printed strain sensor that can detect flection and extension via a change in resistance. The results demonstrate the potential of this sustainable biopolymer and its composites for applications in the biomedical space.