bluuebunny/crossref_metadata_2025 huggingface dataset:
Cardioprotective effects of Musanga cecropioides Welw. Ex Benth extracts on isoproterenol-induced acute myocardial infarction in Wistar rats.
Authors: Lawal Abiodun , Adeniran Lateef , Oladele Gbenga , Ajagbonna Olatunde
Published: May 2024

Background of the study: Acute myocardial infarction (AMI) is a prominent etiology of heart failure-related death worldwide. Musanga cecropioides Welw. Ex Benth bark water extract is used by the Yoruba tribe in Nigeria for the treatment of several metabolic diseases, inflammatory diseases, wounds, coughs, and toothaches. Aim: This work evaluates the cardioprotective effects of M. cecropioides water extract on isoproterenol (ISO)-induced AMI in Wistar rats. Methodology: ISO (100 mg/kg, subcutaneous (s.c.)) was used to induce AMI in rats. Thirty rats (n = 5) were pretreated orally for seven days with normal saline (1.0 ml/kg/day, no-AMI control), normal saline + ISO (1.0 ml/kg/day + 100 mg/kg AMI, control), normal saline + M. cecropioides water extract (1.0 ml/kg/day + 500 mg/kg/day, non-AMI group), M. cecropioides water extract 500 and 1000 mg/kg/day, and captopril (5 mg/kg/po/day) before induction of AMI on the eighth and ninth days. Electrocardiographic changes, lipid peroxidation, biochemical enzyme profile, hematological, and histopathological changes were determined. Results: ISO significantly increased AST, ALT, lipid 15 profile, and oxidative stress marker (MDA). In addition, it caused ST segment elevation, increased heart rate, R-R interval, and degenerative changes in cardiac tissues. Pretreatment with M. cecropioides water extract (500 and 1000 mg/kg) significantly suppressed the biochemical enzyme profile and lipid peroxidation. It also significantly improved changes in histopathological and electrocardiographic imaging of the myocardium. Conclusion: The outcome of this work shows evidence that M. cecropioides water extract may have cardioprotective effects on AMI in rats.
TRANSITANDO NO ESPETÁCULO JUNINO: REFLEXÕES SOBRE A PRODUÇÃO IDENTITÁRIA DAS DAMAS GS E DAMAS TRANS NAS QUADRILHAS JUNINAS
Authors: Meira Vanessa Belmiro dos Santos
Published: May 2024

O caminho proposto por este trabalho é no sentido de conduzir a uma reflexão sociológica sobre a construção identitária das damas Gs e das damas Trans no espetáculo das quadrilhas juninas, espaço consagrado pela cultura popular brasileira por seu caráter tradicional e reprodutor de práticas sociais e rituais simbólicos. Nos últimos tempos as quadrilhas juninas tem se configurado como lugar de assimilação de novas experiências artísticas e coletivas, principalmente no que concerne aos papeis sociais de gênero e de sexualidade. Na cidade de Campina Grande, Paraíba, é possível acompanhar a presença de pessoas LGBTs- atores gays transformistas, mulheres trans e travestis- que atuam como damas no elenco das quadrilhas juninas. Para tanto, utilizam de recursos tecnológicos na montação dessas personagens e da performance de gênero a fim de garantir uma passabilidade “tradicionalmente’ feminina. Através do uso da entrevista e da observação participante, a pesquisa qualitativa revelou que as quadrilhas juninas são espaços de sociabilidades e de acolhimento à diversidade sexual e de gênero, embora ainda atuem como (re) produtoras de classificações identitárias, ao preservar pela manutenção da matriz binária (homem = cavalheiro x mulher = dama). Entretanto, é fato que o protagonismo das damas gs e das damas trans tem promovido a ressignificação e reedição da dança na tradição junina. Trata-se de um convite à reflexão sobre o tema numa perspectiva local, reconhecendo o relevante papel desses sujeitos na abertura de espaços para que novas corporalidades ou expressões de gênero emerjam.
Các đặc tính kỹ thuật của vữa xây dựng sử dụng xỉ lò cao nghiền mịn thay thế một phần xi măng
Authors: Nguyễn Văn Dũng  , Lê Thị Thanh Tâm  , Mai Thị Ngọc Hằng
Published: May 2024

Xi măng và thép là hai vật liệu chính được tiêu thụ trong ngành xây dựng. Tuy nhiên việc sản xuất xi măng tiêu hao một nguồn lớn tài nguyên, đồng thời thải ra môi trường một lượng lớn khí CO2 gây hiệu ứng nhà kính. Trong khi đó, quá trình sản xuất thép cũng thải ra một lượng lớn xỉ lò cao, chúng cần được tái sử dụng để không gây ảnh hưởng đến môi trường. Nghiên cứu này sử dụng xỉ lò cao nghiền mịn (XLCNM) trong sản xuất vữa xây dựng. Kết quả nghiên cứu chỉ ra rằng, độ co khô của vữa giảm đáng kể khi sử dụng XLCNM. Với hàm lượng XLCNM hợp lý (15% hoặc 30%) có thể cải thiện khả năng chịu lực cũng như khả năng chống lại sự xâm thực của các ion Clo. Tất cả các mẫu vữa trong nghiên cứu này đều có cường độ chịu nén lớn hơn 80 MPa và khả năng chống lại sự xâm thực của ion Clo.
Nghiên cứu sự phân bố ứng suất trong nền đất yếu được gia cố bằng trụ đất xi măng kết hợp với vải địa kỹ thuật dưới công trình đắp cao ở Tiền Giang
Authors: Thắng Nguyễn Ngọc
Published: May 2024

Phương pháp gia cố đất, phương pháp trộn sâu, thường được sử dụng để gia cố nền đất yếu trong đất phù sa ở đồng bằng, ví dụ như đất ở Đồng bằng Sông Cửu Long (ĐBSCL). Trong nghiên cứu này, phương pháp phần tử hữu hạn (PTHH) bằng phần mềm PLAXIS được dùng để phân tích sự phân bố ứng suất lên trụ và đất nền của hệ trụ đất xi măng kết hợp với vải địa kỹ thuật trong gia cố nền đất yếu dưới công trình đắp cao ở tỉnh Tiền Giang. Bằng phương pháp này, các ứng xử của cột đất trộn xi măng trong xử lý nền đất yếu được chỉ rỏ bằng sự phân bố ứng suất và độ lún của cột đất xi măng và các lớp đất yếu. Đồng thời, quá trình lún của công tác xây dựng nền đường được quan sát. Sự phân bố ứng suất trong cột đất xi măng và độ lún cũng được rút ra từ sự phân tích của phương pháp PTHH.
Ứng dụng phương pháp giải liên tiếp các bài toán thuận trong nhận dạng độ cứng ngàm đàn hồi bằng các tham số dao động riêng của kết cấu
Authors: Bàng Nguyễn Xuân
Published: May 2024

Trong bài báo trình bày phương pháp giải bài toán nhận dạng độ cứng ngàm đàn hồi của hệ kết cấu thanh - cọc. Mô hình tính của bài toán là hệ kết cấu thanh - cọc dưới dạng khung không gian, biến dạng đàn hồi tuyến tính, thay liên kết cọc - nền bằng ngàm đàn hồi. Bài toán đặt ra được giải theo phương pháp giải liên tiếp các bài toán thuận dựa trên cơ sở cực tiểu hóa độ lệch quân phương - là tổng bình phương sai số giữa các tần số dao động riêng đo đạc và tần số dao động riêng tính toán - kết hợp với phương pháp phần tử hữu hạn.
Nghiên cứu thực nghiệm xác định chiều sâu xuyên của đạn vào bê tông
Authors: Thuỷ Ngô Ngọc , Lợi Vũ Đình , Hoàng Trịnh Minh
Published: May 2024

Việc nghiên cứu, so sánh bài toán xuyên dưới các góc nhìn và phương pháp khác nhau giúp giải quyết bài toán một cách toàn diện và tổng quan hơn, đồng thời tìm ra những hướng đi mới trong việc nghiên cứu và làm rõ các vấn đề còn tồn tại của từng phương pháp hay công thức. Trên cơ sở đó, bài báo trình bày kết quả thử nghiệm bắn đạn 7,62 mm K56 trên súng Tiểu liên AK vào các tấm Bê tông M300 có kích thước 600x600x100 mm, so sánh kết quả xác định chiều sâu xuyên bằng thực nghiệm với một số công thức thực nghiệm hiện hành và rút ra một số nhận xét cho việc sử dụng một số công thức thực nghiệm xác định chiều sâu xuyên hiện hành.
Effect of thiamine pyrophosphate on oxidative damage in the brain and heart of rats with experimentally induced occlusion of the common carotid artery.
Authors: Emir Izzet , Suleyman Zeynep , Suleyman Halis
Published: May 2024

It is known that a sudden increase in cerebral blood flow (hyper-perfusion) with carotid revascularisation may disrupt and damage the blood-brain barrier. This study aimed to explore thiamine pyrophosphate’s (TPP) pro-tective effects against potential brain and heart damage resulting from carotid cross-clamping and unclamping in rats. The animals were divided into com-mon carotid cross-clamping and unclamping (CCU), TPP+common carotid cross-clamping and unclamping (TCCU), and sham operation (SG) groups. The TCCU group received an intraperitoneal injection (IP) of 20 mg/kg TPP one hour before anesthesia. The CCU and SG groups received distilled water as a solvent. Ischemia was induced by maintaining the clips closed for 10 min. For the SG group, only a subcutaneous incision was made. Afterward, the clips were removed, the incisions were stitched, and reperfusion was continued for six hours. Subsequently, the rats were euthanized with high-dosage general anes-thesia, and heart and brain tissues were removed. TPP significantly suppressed the I/R-induced malondialdehyde (MDA) increase and decreased total gluta-thione (tGSH) levels in brain and heart tissues. TPP prevented the increase of tumor necrosis factor-alpha (TNF-α), interleukin-1 β (IL -1β), and interleukin-6 (IL -6) levels in both brain and heart tissues. In blood serum, TPP suppressed I/R-induced increase in troponin I (TP I) and creatine kinase-MB (CK-MB) in the blood. TPP was shown to protect the brain and distant cardiac tissues against oxidative and inflammatory damage induced by cerebral I/R.
AN EMPIRICAL ANALYSIS OF THE RELATIONSHIP BETWEEN SERVICES AND CAPITAL IN THE CASE OF RUMELIA CASH WAQFS
Authors: Altay Bora
Published: May 2024

This study investigates the effects of cash waqf-financed services on capital levels in Rumelia from a long-term perspective by employing quantitative information obtained from cash waqf deeds. Specifically, it explores the determinants of capital levels, including religious services, financing of public goods, poor support, and family support. Regression analysis generated the primary method of this study to achieve these goals. The findings reveal that religious services and family support are the predominant functions financed by cash waqfs, while financing public goods and assistance to people experiencing poverty are less common. The quantitative analysis suggests that the coefficients for former services are positive and insignificant, although the effect of financing public goods is negative and insignificant. However, poor support had a positive and significant effect on capital levels. Overall, this study's findings challenge the widely accepted notion in the literature that financing public goods and assistance to people experiencing poverty are prevalent in cash waqfs in Rumelia.
Las Medidas de Protección para el Niño, Niña y Adolescente en el Contexto Huancavelicano
Authors: Huanay De la Cruz Kevin Jesús
Published: May 2024

Las diferentes políticas públicas son herramientas para la fundamentación subsidiaria por parte del Estado. Es una figura constitucional que tiene la cualidad de ahora manejarse como un principio importante de la política económica y de la sociedad. El objetivo de este artículo es analizar la historia, la protección de la infancia mediante las normas y la implementación de políticas públicas, así vemos a la educación, a las ayudas sociales, la seguridad jurídica, la salud, como derechos fundamentales. La etapa del menor es un periodo importante para el hombre, es en la niñez e infancia donde la identidad y la socialización son clave para la formación del menor. Es lamentable encontrar al menor vulnerable y con posibles casos de dependencia en su contexto social más allegado, en la familia. La metodología comparativa nos obliga a recurrir al estudio de las políticas públicas de otros países para los menores de edad, en el contexto del cambio del contexto de los niños con respecto a la sociedad. En conclusión dentro de la nación, así como del entorno local, como del contexto internacional; todo implica un estudio exhaustivo para coadyuvar en la esencia de la Convención , dentro de ello vemos como la erradicación de la violencia familiar que según la ONU, afecta directamente al niño, así también, la pobreza, el maltrato infantil, el trabajo infantil, el abuso sexual, la trata de blancas, entre otros problemas que aún le falta superar a la tierra del mercurio dentro de los niveles administrativos defensores del niño.
Marco legal del derrame de petróleo en la Amazonía peruana
Authors: Solier Ñahui Lucero Yumira
Published: May 2024

Recientemente en enero del 2022 hubo un derrame de petróleo en la Refinería La Pampilla en la costa peruana, un caso mediático a comparación de los derrames que suceden a lo largo de la Amazonía peruana todo el tiempo y son ignorados. El objetivo de estudio fue evaluar la inconsistencia y los vacíos legales respecto a las leyes sobre derrame de petróleo e hidrocarburos debido a que no son lo suficiente rigurosas por lo que en la Amazonía peruana es muy común los derrames de petróleo donde no se sanciona drásticamente a los responsables. Las sanciones que se dan en caso de contaminación son medidas por la certeza del daño cometido a la salud del ambiente, viendo la responsabilidad civil, penal y administrativa que se amparan por leyes peruanas legales del ambiente y convenios internacionales, quienes otorgan estas sanciones son órganos autónomos como el Ministerio del Ambiente (MINAM) y el Organismo de Evaluación y Fiscalización Ambiental (OEFA), que además se encargan de la conservación y el uso sostenible de recursos naturales.
Çelik Çerçevelerin Genetik Algoritma Yöntemiyle 2018 Türk Çelik Tasarım Yönetmeliğine Göre Optimum Tasarımı
Authors: Acar Zeynep , Hayalioğlu M. Sedat
Published: May 2024

Yapısal taşıyıcı sistemlerinin optimum tasarımı yapı mühendisliğinde önemli bir konudur. Tasarımdaki amaç yeterli güvenliği sağlayan en ekonomik yapıyı oluşturmaktır. Öte yandan, bu amaç doğrultusunda projelendirilen yapıların ise, etkiyen yükler altındaki davranışının kabul edilebilir sınırlar içinde kalması gerekmektedir. Böylece, etkiyen yüklere emniyetle, belirli rijitlikle dayanabilen ve ağırlığı minimum olan yapının belirlenmesi, optimum tasarım problemini oluşturmaktadır. Bu çalışmada, çelik bina çerçevelerinin 2018 Türk Çelik Yönetmeliği’nin yük ve tasarım koşullarıyla Genetik Algoritma yöntemi kullanarak optimum tasarımı yapılmıştır. Tasarımlarda gerekli koşulları sağlayan minimum ağırlıklı çerçevelerin elde edilmesi amaçlanmıştır. Öncelikle Genetik Algoritma optimizasyon yöntemini, çerçeve analizi ve Türk Çelik Tasarım Yönetmeliği koşullarıyla birleştiren bir bilgisayar programı geliştirilmiştir. Her aşamada programın doğruluğu test edilerek diğer aşamalara geçilip ve sonunda tüm aşamalar birleştirilmiştir. Program doğru çalıştıktan sonra geliştirilen programla farklı boyutlarda iki çerçeve örneğinin optimum tasarımı yapılarak sonuçlar SAP 2000 programının tasarımlarıyla karşılaştırılmıştır. Ayrıca geliştirilen yöntemin üstün ve zayıf yanları değerlendirilmiştir. Sonuç olarak geliştirilen Genetik Algoritma yönteminin çelik çerçeve tasarım örneklerinde SAP 2000 programının tasarımlarına göre daha hafif çerçeveler elde edilmiştir.
INSTRUCTORS’ MOTIVATION AS CORRELATES OF SUPERIORS’ TRANSFORMATIONAL LEADERSHIP STYLES IN AN INSTITUTE OF TECHNOLOGY IN SHANDONG, CHINA
Authors: 刘 志菁
Published: May 2024

This study aims to determine the relationship between transformational leadership styles of department heads and instructors’ motivation at Shandong Huayu Institute of Technology in China. A descriptive comparative-correlational design will be utilized. The Multifactor Leadership Questionnaire and a motivation scale will be administered to 294 instructors to assess transformational leadership styles (idealized influence, inspirational motivation, intellectual stimulation, individual consideration) and types of motivation (power, achievement, affiliation, competence). Quantitative data will be analyzed using descriptive and inferential statistics. Results will determine if there are significant relationships between leadership styles and motivation, which can inform leadership training programs. This addresses a gap in understanding transformational leadership and instructor motivation in the Chinese higher education context.
An Examination of the Psychological Processes Behind Effective Piano Practice
Authors: WANG KELI
Published: May 2024

This study explores interplay between psychological processes and piano practice, unveiling how cognitive theories, mindfulness, flow state, emotional engagement, and performance psychology collectively shape the pianist's journey. By examining the foundation of deliberate practice driven by focused attention, this study uncovers its role in skill acquisition. Introducing mindfulness practices enriches piano practice through heightened present-moment awareness, fostering focused engagement and emotional regulation. The pursuit of flow state, characterized by the alignment of challenge and skill, leads to immersive and productive practice sessions. Moving to interpretation, the study explores how psychological factors infuse emotion and authenticity into performances. Mindset, emotional intelligence, and personal narratives emerge as pivotal in conveying a piece's intended narrative. Performance psychology then comes into play, influencing psychological states during performances and strategies for managing anxiety. Overall, the implications for piano pedagogy emphasize nurturing mindful learning environments, fostering flow experiences, and guiding emotional expression, thus embracing a holistic approach. This study underscores the transformative impact of psychology in shaping the trajectory from novice pianist to expressive artist, unraveling the profound interrelation between the mind and the art of piano playing.
Study on the control effect of Empedobacte brevis on cherry fruit fly
Authors: Zhang Wenhui , Duan Jiayu
Published: May 2024

Abstract: Fruit fly is a major boring pest of cherry fruits during the color change and maturity period. It causes serious damage and affects the quality and economic benefits of cherry fruits. In order to clarify the control effect of Empedobacter brevis on cherry fruit fly and provide basis for guiding scientific medication use. The test adopts the conventional spray method, and uses 60g•L-1 spinetoram suspension as a control to compare and analyze the control effects of different dosages of Empedobacter brevis suspension on cherry fruit fly. The results show that on the three cherry varieties of Red lantern, Tieton and Napoleon, the control effects of Empedobacter brevis 600 times and 800 times and spinetoram 1000 times are better, and the control efficiency reaches more than 78-80%. There is no significant difference in control effects among the three, and they are safe for cherry trees. In cherry production, Empedobacter brevis can be promoted and applied as an effective biological agent to control fruit flies.
Application of Production-oriented Approach in College Integrated English Teaching -under the Background of Curriculum Ideological and Political Education
Authors: Ma Shuning
Published: May 2024

The Production-Oriented Approach, a foreign language teaching method with Chinese characteristics founded by Wen Qiufang,  has been developed over the past decade with the goal of enhancing the quality of English instruction in higher education settings across China. This paper aims to apply this theory to the teaching framework of ideological and political education within integrated English courses and subsequently evaluate its effectiveness.A specific case study, centered on the text “Spring Sowing” from a Contemporary College English Reading course,  demonstrates the practical implementation of ideological and political education using the POA. The paper describes the teaching design of this unit within the POA framework, encompassing the motivating, enabling, and assessing stages. Additionally, students’ feedback following the implementation of this teaching approach highlights its positive impact on linguistic advancement, thematic comprehension, and appreciation for farmer-related themes.The study’s findings demonstrate that a college integrated English course based on the POA seamlessly integrates language knowledge with ideological and political elements, resulting in a noticeable enhancement in teaching quality and efficacy. It demonstrates the feasibility and effectiveness of incorporating ideological and political education within English language instruction using the POA framework, offering valuable insights for future curriculum development and implementation in Chinese higher education.
Guarding Authenticity: A Deepfake Detection System
Authors:   Department of Computer Engineering, SITS, Pune
Published: May 2024

This Recent advancements in computer vision have led to the development of powerful tools that can create realistic deepfakes. A generative adversarial network (GAN) can manipulate captured media streams, such as images, audio, and video, to make them appear to fit other environments. The spread of these fake media streams can cause chaos in social communities and damage the reputation of individuals or groups. It can also influence public sentiments and opinions toward the targeted person or community. Researchers have suggested using convolutional neural networks (CNNs) as an effective method for detecting deepfakes in the network. However, most existing techniques struggle to capture the dissimilarities between frames in the collected media streams. Motivated by this challenge, this paper presents a novel and improved deep-CNN (D-CNN) architecture for deepfake detection. The proposed approach aims to achieve reasonable accuracy and high generalizability. The model is trained on images from multiple sources, which enhances its overall generalizability capabilities.A binary-cross entropy and Adam optimizer are utilized to improve the learning rate of the D-CNN mode. Key Words: cnn, deepfake, image, network, media stream, detection
Fake Reviews Detection using Supervised Machine Learning Algorithms
Authors: Salokhe Prof. Aditee
Published: May 2024

In recent years, the prevalence of fake reviews on online platforms has become a significant concern, as these deceptive reviews can mislead consumers and impact purchasing decisions. This research paper explores various methods for detecting fake reviews using machine learning techniques. We utilized the deceptive opinion spam dataset, which includes both truthful and deceptive hotel reviews for 20 Chicago hotels. The dataset comprises 1600 reviews, evenly split between truthful positive, deceptive positive, truthful negative, and deceptive negative reviews. Our primary objective was to classify these reviews as either truthful or deceptive using several machine learning algorithms. We constructed a data frame with columns for the review text, polarity class, and spamity class. Polarity indicates whether a review is positive or negative, while spamity distinguishes between truthful and deceptive reviews. Stopwords were removed from the reviews using the nltk package from sklearn, and text mining techniques were applied to convert text strings into numerical data. We also extracted parts of speech from the reviews to use as features in our models. We experimented with four classification techniques: Naïve-Bayes, Support Vector Machine (SVM), Decision Tree, and Random Forest classifiers. The Naïve-Bayes classifier, specifically the Multinomial NB algorithm, achieved an accuracy of 89.13%. The SVM yielded an accuracy of 82.155%, while the Decision Tree algorithm resulted in an accuracy of 65.55%. The Random Forest classifier demonstrated the highest accuracy, reaching 91.72%. Confusion matrices, generated using the sklearn metric module, validated the accuracy of each algorithm. Given the superior performance of the Random Forest classifier and Naïve-Bayes, these models were selected for further analysis. Our findings indicate that these machine learning techniques can effectively identify fake reviews, thereby helping to mitigate their misleading impact on consumers. For future work, we aim to expand our study to include datasets from other platforms such as Amazon and flipakrt, and to explore different feature selection methods. We also plan to apply sentiment classification algorithms using various tools like Python, R, Statistical Analysis System (SAS), and Stata, to detect fake reviews and evaluate the performance of these tools. This research was supported by the Technical University of Kerala. We extend our gratitude to our colleagues for their expertise, which significantly aided the research, although they may not concur with all the interpretations presented in this paper. Through this study, we contribute to the ongoing efforts to enhance the reliability of online reviews and protect consumers from deceptive practices.
Recurrent miscarriage and factors that effects its: A review
Authors: Al-Akaidi Marwa Adel Hussein , Al_ward Mais Adnan , JAWAD ASMAA A. , Hassan Wassan A. , Hamid Daniah M. , Shaher Rana Fadhil , Jaafar May Ridha , Safir Nadhum Hussen
Published: May 2024

Spontaneous abortion is a commonly occurring issue during human pregnancy. The definition provided by the WHO in 1977 is universally accepted. Recurrent pregnancy loss is a multifaceted health issue that lacks a universally agreed-upon definition. The lack of agreement in definitions encompasses not only the varying number of spontaneous abortions (two or three) that are considered recurrent pregnancy losses but also the different types of pregnancies and the gestational age at which the miscarriage occurs. The prevalence among clinical pregnancies is approximately less 15%, but when early pregnancy losses are included, it rises to 17–22%. The only two etiologic causes that all authors agree on are uterine abnormalities and paternal balanced chromosomal rearrangements. Numerous alternative risk variables have been proposed.
Evaluasi Sebaran Rayap Di Perkebunan Kelapa Sawit Pada Jenis Tanah Yang Berbeda
Authors: Sudarmanto Dandi , Santi Idum Satia , Tarmaja Samsuri
Published: May 2024

Termites are one of the pests in oil palm plantations that can cause physical damage to oil palm plants. This study aims to determine the type and colony of termites in mineral, peat and sandy soils and the effectiveness of their control. This research was conducted at PT. Binasawit Abadipratama located in Danau Seluluk District, Seruyan Regency, Central Kalimantan Province, Tangar Estate from March to April 2023. The research was conducted using a comparative method by comparing termite colonies in mineral soil, peat and with parameters in the form of termite species and the level of attack expressed by scoring, as well as secondary data in the form of termite nest census data in the garden archive to determine the effectiveness of control. The results showed that the largest termite colony was found in mineral soil. Termite species found in all soil types was Macrotermes gilvus, and no indication of termite infestation in oil palm trees. Based on the census data for the past three years, it can be concluded that the control that has been carried out is effective in reducing the termite colony from year to year.
Escherichia coli/Coliformes spp en ensaladas cocidas expendidas en el mercado 12 de Abril; Cuenca-Ecuador Agosto 2023
Authors: Angamarca Vasquez Kevin Leonel , Calva Guamán Yuliana Elizabeth , Torres Segarra Silvia Monserrath
Published: May 2024

Introducción: La presencia de Escherichia coli y Coliformes spp en ensaladas cocidas representa un riesgo significativo de transmisión de enfermedades gastrointestinales, evidenciando problemas en la manipulación y preparación de alimentos.
Objetivo: Analizar la calidad microbiológica de ensaladas cocidas expendidas en el mercado 12 de Abril de la ciudad de Cuenca - Ecuador; mayo 2023.
Metodología: El universo de estudio abarcó todos los puestos de venta de ensaladas cocidas en el Mercado 12 de Abril de Cuenca en noviembre de 2023. Se escogieron aleatoriamente 30 de estos establecimientos para la detección de E. coli/coliformes spp, utilizando para ello placas Compact Dry.
Resultados: El análisis reveló una prevalencia notable de E. coli en las ensaladas cocidas, con un crecimiento positivo especialmente en las diluciones más concentradas. Paralelamente, se observó una presencia universal de coliformes spp en las diluciones 1:10 y 1:100, y una alta prevalencia en la dilución 1:1000. Estos hallazgos sugieren una significativa contaminación bacteriana en las ensaladas.
Conclusiones: Se analizó la calidad microbiológica de las ensaladas cocidas en el Mercado 12 de Abril, evidenciando un riesgo sanitario y la necesidad de mejorar el control de calidad alimentaria.
Competencies of Secondary School Principals in Cameroon
Authors: Arafat Mfochivé Badiane Arroun , Bouchamma Yamina
Published: May 2024

We investigated the professional competencies, encompassing both knowledge and management practices, employed by secondary school leaders in Cameroon. A total of 73 principals from both public and private francophone-sector establishments participated in this study, providing responses to a comprehensive 38-item questionnaire. Employing exploratory factor analysis, we identified five distinct factors (competencies) associated with these principals. The findings reveal that, beyond the conventional competencies linked to their pedagogical responsibilities and the management of material and financial resources, school principals have also acquired and refined skills pertinent to the effective management of school communities and the promotion of diversity within their respective educational institutions.
Factors Affecting Academic Resilience During Crises: Cases of Secondary School Students in Phuket, Thailand
Authors: Uicheng Ratchanok , Chobphon Peson
Published: May 2024

Academic resilience is crucial in today’s crisis-prone society. This qualitative study explored the factors that shaped academic resilience during the COVID-19 pandemic to strengthen the global literature on resilience and postpandemic policy and practice in education. This study adopted a multiple-case study design, with the application of replication logic and data collection via semistructured interviews. The case studies featured interviews with three academically resilient students in Phuket and nine relevant informants, including parents, homeroom teachers, and local stakeholders. These interviews covered various factors surrounding personal qualities, families, peer groups, schools and teachers, communities and cultures, and the pandemic. Through thematic analysis, seven overarching themes emerged from the data: (1) achievement-oriented characteristics, (2) high aspirations, (3) COVID-19-driven adaptability, (4) self-directed learning in the use of online resources, (5) healthy family functioning, (6) role models, and (7) social support in the context of a giving culture.
Effect of Season and Machine Type on Performance of Semi- and Fully Mechanized Harvesting Systems in Beech-Dominated Stands
Authors: Labelle Eric R. , Borchert Herbert , Aurenhammer Peter K. , Breinig Loren , Spinelli Raffaele , Magagnotti Natascia
Published: May 2024

It is common to have large trees in mature hardwood-dominated stands. This is especially true for European beech (Fagussylvatica L.), which can also have a complex architecture. Such trees have predominantly been harvested using motor-manual operations. However, in an effort to increase occupational safety and allow for a more continuous wood flow to processing facilities, fully-mechanized systems are also being employed more frequently. This study was established to determine the effect of season (Fall or Winter) and harvester type (wheeled or tracked) on the performance of semi- and fully- mechanized harvesting systems deployed in beech-dominated stands. Time-and-motion analysis was conducted on a total of 927 trees located in two forest sites in Germany. The study indicated that new silvicultural prescriptions make it impossible to harvest all trees exclusively with mechanized systems, even in the case of the tracked harvester with its 14.5 m boom. Motor-manual intervention was needed with trees that were too large, malformed or out of reach. Motor-manual intervention was significantly more frequent for the wheeled (30%) than for the tracked harvester (18%). Once again, tree size had the strongest effect on time consumption in a linear model, which varied from 0.5 to over 6 min per tree. Season and machine effect were also significant but could only account for a small fraction of the total variability. For the same tree size, time consumption was higher with the wheeled harvester and during the fall. The model also indicated a significant relationship between tree form and time consumption, even though the explanatory contribution of this independent variable was relatively small, too. Good stem form resulted in a lower time consumption. The larger tracked harvester was generally more efficient, but also more expensive to own and operate: its higher costs must be weighed against the higher revenues. New silvicultural trends make it difficult to achieve full mechanization, but the results of this study may guide managers towards technical solutions that minimize motor-manual intervention to the advantage of higher productivity and better occupational safety.
Variability of Morpho-Anatomical Characteristics of Different Willow Clones Contaminated with Heavy Metals
Authors: Jokanović Dušan , Urošević Jelena , Stojnić Srđan , Nikolić Jokanović Vesna , Stanković Dragica , Ištok Iva
Published: May 2024

In this paper, the variability of morphological (stem height, stem basal diameter, proportion of pith, wood and bark) and wood anatomical characteristics (fiber length, fiber diameter, fiber lumen diamater, double cell-wall thickness, vessel diameter, wood rays width and height) of three Salix alba clones (B-44, 347 and NS 73/6) and one Salix viminalis clone both in the control plot and in the site contaminated with a mixture of heavy metals (As, Cd, Cr, Cu, Ni, Pb) was investigated. The observed results showed that individuals of all four clones had significantly higher average values of stem height and stem basal diameter at the control plot compared to the polluted site. As for the proportion of pith, bark and wood, heavy metals caused an increase in the share of pith and a decrease in the share of bark and wood in all clones with the exception of clone NS 73/6. The analysis of wood fiber dimensions showed that the values of all parameters were higher at the control site with the exception of fiber lumen diameter where higher values were observed for clones B-44 and NS 73/6 at the polluted site. Higher values of vessel diameter were recorded for all clones at the control plot, while wood rays width of all individuals was greater at the contaminated site. Regarding the wood rays height, only Salix viminalis showed higher value at the polluted site. These results confirmed that pollution-induced heavy metal stress significantly altered the morphological and wood anatomical characteristics of all researched clones and that it may affect their utility properties.
Breakeven Analysis Considering Ultra-Fast Charging Stations at Mills for Battery-Electric Log Trucks
Authors: Sessions John , Lyons Kevin C. , Hamilton David
Published: May 2024

Range is a primary issue regarding the adoption of battery-electric vehicles. In-shift charging offers an alternative to extending range without the need for a heavier, more expensive battery. This paper recognizes that daily log truck productivity is a result of a small number of discrete events (loads delivered to a demand point). Delays such as in-shift charging become very important if they result in a lost load. If n is the number of loads a truck can deliver in a day without delays from in-shift charging, then the expected number of loads a truck can deliver with in-shift charging delays is n-1 + prob, where prob is the probability of completing the last load. The choice between a larger battery capable of a full day's operation and a smaller battery that requires in-shift charging is formulated as a breakeven problem. Solving for the value of prob where the net revenue earned by the larger battery truck is equal to the net revenue earned by the smaller battery truck provides a battery size decision-point. Conducting a sensitivity analysis, the three factors that had the greatest impact on battery size selection were the hauling rate ($/tonne), the difference in net load, and the difference in depreciation cost between the large and small battery trucks.
Technodiversity
Authors: Erler Jörn , Đuka Andreja , Magagnotti Natascia , Simonetti Marco , Stampfer Karl , Pavelić Niko , Spinelli Raffaele , Papa Ivica , Bade Clara , Borz Stelian Alexandru , Lindroos Ola , Lundbäck Mikael , Mederski Piotr S. , Bembenek Mariusz , Mionetto Nathalie
Published: May 2024

The Technodiversity project addresses technological diversity by gathering a common basis of technological knowledge and increasing the sensitivity for diversity in forest engineering. It aims to bring together and make generally available the existing knowledge in forest operations that is scattered across various European countries. It will serve as a bridge between different regions of Europe and generations of students, practitioners, scientists and academics. In this article, a small part of the e-learning module (https://technodiversity-moodle.ibe.cnr.it/) is presented in a glossary of some of the terms of forest operations.
A Meta-Analysis to Evaluate the Reliability of Depth-to-Water Maps in Predicting Areas Particularly Sensitive to Machinery-Induced Soil Disturbance
Authors: Latterini Francesco , Venanzi Rachele , Papa Ivica , Đuka Andreja , Picchio Rodolfo
Published: May 2024

The careful planning of the extraction routes is one of the most important best management practices to limit soil disturbance related to ground-based forest operations. Over the recent years, this task has been commonly addressed in the framework of boreal forestry, by developing soil trafficability maps based on the depth-to-water (DTW) topographic index. The basic concept of trafficability maps developed with the DTW index is that soils at low DTW index, namely <1, could be more prone to soil compaction and rutting as they tend to have higher moisture content. However, previous studies that tried to assess the reliability of these maps reported contrasting results. Therefore, the present meta-analysis was developed to evaluate if soils at low DTW index (≤1) are actually more sensitive to soil compaction and rutting than soils at higher DTW index (>1). A database was created containing all the studies that assessed soil compaction and rutting in soils at low DTW index (experimental treatment) and high DTW index (control treatment), and a multivariate meta-analysis was used to check the presence of statistically significant effect size. Then the influence on the effect size of variables like soil texture, number of machine passage and weight of the machine, was checked by applying sub-group meta-analysis and meta-regression. Finally, a sensitivity analysis was performed by removing possible outliers from the database and repeating the analyses. No statistical differences were found in soil compaction and rutting severity in areas at low DTW index in comparison to the control areas (DTW index ≥1). The results showed that soil texture, number of machine passage and weight of the machine did not have a significant influence on the effect size. The sensitivity analysis developed after removing outliers from the database fully confirmed the obtained results. Thus our meta-analysis showed that the DTW index in its current form is not a fully reliable predictor of soil areas that could be particularly sensitive to machinery-induced disturbance. It is therefore recommended to use the DTW index to create trafficability maps, always taking into account that the results of the algorithms should be validated in the field before starting harvesting operations.
CDR Tropical: solução baseada no homem para crise ambiental global
Authors: Zanetti Ederson Augusto , Siqueira Joesio Deoclecio Perin , Souza Fernanda Oliveira de
Published: May 2024

Há evidências mostrando um caminho de degradação de florestas tropicais nativas devido à fertilização atmosférica de CO2, que se deve principalmente ao favorecimento da competitividade da vegetação secundária em relação às árvores em estoques permanentes não manejados, resultando em emissões GEE liquidas da ordem de 600 milhões tCO2e/ano e contribuindo para aumentar o risco de espalhamento de doenças infectocontagiosas. Plantações florestais, lavouras, pastagens cultivadas, lianas, palmeiras e outras vegetações secundárias mostraram ganhos de produtividade com a fertilização com CO2, enquanto as árvores nativas respondem de alguma forma no início, perdendo a capacidade depois. Um cenário alternativo de IFM é proposto, onde técnicas de silvicultura contemporâneas podem reverter o processo e produzir PFM e PFNM como resultado da intensificação do uso da terra. O CDR tropical apresenta capacidade de produzir um resultado 8,3 vezes melhor que o REDD+, enquanto o CDR* tropical tem um comportamento que multiplica os efeitos do REDD+ por 27,6 vezes no que diz respeito ao combate aos efeitos das mudanças climáticas. Até 2050, os países em desenvolvimento poderão utilizar 600 milhões ha dos seus mais de 2 bilhões ha de florestas tropicais como florestas altamente produtivas de 6 bilhões de m3/ano de produtos industriais de madeira e gerando algo como 18 milhoes de postos de trabalho . Isto significa que, aplicando a silvicultura contemporânea e a abordagem CDR tropical, podem produzir 6 bilhões de créditos de tCO2e/ano, o suficiente para cumprir a meta de 1,5o Celsius do Acordo de Paris. Isso geraria dezenas de milhões de empregos diretos e indiretos e um fluxo de caixa de US$ 600 bilhões/ano para os países tropicais em desenvolvimento em PFM e PFNM, além de outros US$ 600 bilhões/ano em vendas de créditos CDR, um total de US$ 1,2 trilhao / ano. O Brasil tropical tem potencial para contribuir com cerca de 50% desse total antes de 2050, o que significa um incremento medio de US$ 40 bilhoes / ano em renda com a atividade, alem de 9 milhoes de postos de trabalho, contribuindo para solucionar a crise climatica e ambiental global, removendo ate 3 bilhoes tCO2e / ano de CO2 atmosferico e transformando em 3 bilhoes m3 de madeira industrial e para outras finalidades .
Avaliação qualitativa do uso da placa palatina de memória associada à terapia miofuncional em crianças com Trissomia do 21: uma série de casos
Authors: Garcia Julio Isabelle Cristina , Carvalho Ana Carolina Toledo , Santos Lucas Gonçalves , Carvalho Kamila Rodrigues Junqueira , França Esdras de Campos , Furlan Renata Maria Moreira Moraes , Neves Leniana Santos , Pretti Henrique
Published: May 2024

A hipotonia muscular, a língua flácida e anteriorizada são uma das principais manifestações orofaciais da Trissomia do 21 (T21). Para estimular os movimentos e a percepção das áreas motoras da face da criança foram associadas à terapia miofuncional orofacial a Placa Palatina de Memória (PPM). O objetivo deste trabalho é descrever os principais resultados obtidos de três casos clínicos de crianças com Trissomia do 21 desenvolvidos no projeto de extensão multidisciplinar na Faculdade de Odontologia da Universidade Federal de Minas Gerais. Caso 1 - Avaliação inicial com 15 meses, com 1 semana de adaptação teve retração inicial da língua, após 2 meses selamento labial e língua mais posterior, com alta em 1 ano e 11 meses. Caso 2 - 2 meses de idade, com cardiopatia e displasia pulmonar, sucção não nutritiva, adaptação com 2 semanas com melhora na respiração e sucção, selamento labial e língua retruída. Após 14 semanas sem placa houve perda de resultado e a readaptação trouxe readequação com 15 semanas de uso, após 1 ano e meio com posição lingual mais posterior. Caso 3 - 45 dias de vida, 1 mês após instalação da PPM teve posição natural da língua no palato. Com ausência do uso da placa por 3 meses houve piora do quadro, reinstalando e após 1 ano e 10 meses com melhora do quadro postural, alta e continuidade da terapia orofacial. A finalidade terapêutica ao obter melhora da postura habitual da língua e dos lábios com a PPM é prevenir o desenvolvimento de patologias secundárias com melhor qualidade de vida a estes pacientes.
PEMANFAATAN LAHAN PEKARANGAN RUMAH DAN LIMBAH RUMAH TANGGA DALAM MEWUJUDKAN KETAHANAN PANGAN KELUARGA DI KELURAHAN MATAIWOI KOTA KENDARI
Authors: L Mariani , Fausayana Ine , Sidu Dasmin , Sarinah Sarinah , Elvira Ilian
Published: May 2024

Hingga saat ini, ketahanan pangan masih menjadi masalah besar di Indonesia. Dalam  hal memenuhi kebutuhan pangan rumah tangga, pemanfaatan lahan pekarangan dapat menjadi solusi terbaik dalam membangun ketahanan pangan keluarga masyarakat. Permasalahan lain yang perlu mendapatkan perhatian besar adalah limbah plastik yang merupakan jenis sampah yang tidak mudah terurai sehingga dapat mencemari lingkungan. Permasalahan ini sulit untuk dilakukan oleh masyarakat umum karena kurangnya sumber daya manusia dan kurangnya informasi yang diperlukan untuk mengoptimalkan sistem. Karena itu untuk menyelesaikan permasalahan diatas tujuan pengabdian ini  dilakukan untuk memberikan pelatihan dan pendampingan kepada kelompok GAPOKTAN Kelurahan Mataiwoi Kota Kendari sebagai usaha optimalisasi pemanfaatan pekarangan rumah tangga dan pemanfaatan limbah rumah tangga untuk mendukung Indonesia bebas sampah. Pelaksanaan kegiatan pengabdian ini dilakukan dengan metode ceramah, diskusi dan demonstrasi. Hasil dari kegiatan ini adalah meningkatnya pengetahuan masyarakat tentang pemanfaatan lahan pekarangan dan limbah rumah tangga sehingga dapat dipalikasikan pada pekarangan rumah masing-masing untuk mendukung ketahanan pangan dan meningkatkan kesejahteraan masyarakat sebagai solusi dari permasalahan
Comprehensive analysis of publication of physical medicine and rehabilitation theses in Türkiye between years 2010 and 2020: Academic productivity and related factors
Authors: Yılmaz Bilge , Mutlu Arı Pelin , Büşra Ayçiçek Hilal , Yardımcı Gökhan
Published: May 2024

Objectives: This study aimed to investigate the publication rates of physical medicine and rehabilitation specialty training theses, which are required to complete a residency in Türkiye, and determine the factors that affect publication.

Materials and methods: Residency theses involved in this descriptive study were detected from the database of Higher Education Council Thesis Center (tez.yok.gov.tr) between January 2010 and December 2020. Publication of theses and date of publication were investigated by the writer’s and supervisor’s names on PubMed and Google Scholar.

Results: Three hundred eighty-eight of 1,130 theses were turned into publications. Two hundred seventy-seven (24.5%) were published in SCI (Science Citation Index)/SCI Expanded indexed journals. The publication rates of residents were 47.1% in private universities, 34.2% in public universities, and 32.3% in training and research hospitals. The trainees who published their theses were more likely to become associate and assistant professors.

Conclusion: Although approximately one-third of the theses defended were published, this rate is insufficient for sharing the knowledge. Considering that publishing their theses affected the residents’ current academic careers positively, supervisors should provide the residents supportive facilitation to give the knowledge in research and publish their theses.