bluuebunny/crossref_metadata_2025 huggingface dataset:
Caracterización térmica, química y mecánica de un compuesto flexible elaborado a partir de viruta wet blue de la industria del curtido
Authors: Mollehuanca-Caballero Edgard David , Aguilar-Franco José Alberto , Pérez-Montaño Holger Saúl
Published: April 2023

El objetivo del presente estudio fue emplear la viruta de cuero wet blue como material de refuerzo para la elaboración de un material compuesto de matriz polimérica de comportamiento termoplástico, el cual fue caracterizado térmica, química y mecánicamente. Se midieron seis variables: tamaño de viruta, relación viruta/resina, porcentaje de agua, temperatura de la resina, la presión y tiempo de presión, para evaluar la resistencia a la tracción. Se aplicó un diseño factorial fraccionado y se elaboraron planchas de cuero empleando desechos de viruta wet blue, resina termoplástica Vinnapas ®400 y agua destilada. La variable principal sobre la resistencia máxima de tracción está dada por la relación Viruta/Resina en su valor mínimo, seguida por la variable tamaño de viruta en su valor máximo. El mayor valor de resistencia a la tracción fue de 2.657 MPa. El módulo de Young indicó que el mayor valor corresponde a la combinación #10 donde se obtuvo 28.17 MPa. La técnica de TGA demuestra que el nuevo material muestra hasta un 10% de presencia del material reciclado. Los resultados indican que se pueden obtener nuevos materiales a partir de productos de desecho industrial, que con el tratamiento adecuado podrían ser usados con diferentes fines industriales.
التحكيم في المنازعات الناشئة عن العقود الإدارية في دول مجلس التعاون الخليجي
Authors: إبراهيم هيثم
Published: April 2023

يعتبر اللجوء إلى القضاء الطريق الطبيعي لفضّ المنازعات التي تثور بين الأفراد، وإقرار العدالة في المجتمع، ولكن مع تطور الحياة الاقتصادية، والتغيير في أنماط العلاقات التجارية، ظهرت وسائل أخرى اختيارية يلجأ إليها الأطراف بمحض إرادتهم لفض المنازعات التي تنشأ بينهم بدلاً من لجوئهم إلى نظام التقاضي أمام المحاكم التي تنظمها الدولة.

ومن أهم هذه الوسائل الاختيارية، نظام التحكيم. فقد ارتبط التحكيم في الفترة الأخيرة بفكرة التنمية الاقتصادية وجذب الاستثمارات الأجنبية باعتباره الوسيلة المثلى لحسم المنازعات على الصعيد الدولي، لما يحمله من مميزات لا تتوافر في قضاء الدولة، أهمها: بساطة وسرية الإجراءات وسرعتها، وإعطاء الحرية للأطراف في اختيار محكمين لهم خبرة في مجال النشاط الذي يتعلق به النزاع، وتوفير الثقة والطمأنينة للمستثمرين الأجانب.
متطلّبات تحقيق كفاية القضاء والقضاة
Authors: عبد الرحمن باهر
Published: April 2023

لوحظ في الأونة الاخيرة بشكل كبير تولي عدد من القضاة غير المدربين للعمل في الحقل القضائي وليس هناك جهة تختص بالتكوين المهني والتدريب للقاضي، لاسيما أن هناك وسائل عدة تشارك في ذلك، يأتى في مقدمتها الإعداد المهنى الجيد من خلال المعاهد القضائية، والدورات التدريبية والندوات والمؤتمرات العلمية والعملية وإتاحة وسائل المعرفة كافة وتكنولوجيا المعلومات الحديثة من خلال:

توفير وسائل تكنولوجيا المعلومات الحديثة وذلك بإنشاء شبكة معلومات إلكترونية متكاملة تربط جميع المحاكم، وإنشاء موقع على شبكة المعلومات تنشر فيه جميع الأحكام الصادرة عن محكمة النقض، والمحكمة الإدارية العليا والمحكمة الدستورية، وكذلك توفير الكتب والمجلدات والموسوعات والمراجع، فالتكوين المهنى للقاضي يحتاج لهذه الوسائل كافة لتنمية آفاقه القانونية، لذلك يجب أن تكون هناك آلية معينة لتجميع الأحكام والآراء التي تصدر عن المحاكم العليا، لتسهيل وصول القضاة إلى ما يحتاجون إليه من تشريعات وآراء قضائية وفقهية بسهولة، وتيسير المجلات والمراجع القانونية المتخصصة كافة......

توفير ضمانات التخصص والكفاية في القضاء وهي ركيزة أساسية من ركائز الخبرة والمعرفة؛ لأن غالبية النظم القضائية تشترط في الشخص الذي يتولى القضاء صفات ومؤهلات، قانونية وعلمية متخصصة.
The Relationship Between Service Quality, Perception of Expediency with The Decision of Go-Ride Service Users in Makassar
Authors: Ernawati Ernawati , Maulani Muchtar Andi , Anwar Vebby , Norhaedah Norhaedah
Published: April 2023

This study aims to analyze the relationship between service quality, perceived utility, and the choices made by go-ride service users in Makassar. The theories used in this study are the service decision theory developed by Kotler and Keller, Davis’s theory of perceived usefulness, and Kotler’s theory of service quality. 50 Makassar go-ride service users were given questionnaires as part of the quantitative study methodology. The Pearson product-moment correlation approach is the one employed for data analysis. The study finds findings that decisions about which services to employ are positively and significantly correlated with both service quality and perceived usefulness.
Lise Öğrencilerinin Olumsuz Davranışlarına Teknolojinin Etkisi ve Öğretmenlerin İstenmeyen Davranışları Yönetme Becerisi / The Effect of Technology on High School Students’ Negative Behaviors and Teachers’ Ability to Manage Undesirable Behaviors
Authors: Çimen Sevcan , Kafkas Ahmet , Gürel Koray
Published: April 2023

Çalışmanın amacı, lise öğrencilerinin istenmeyen davranışlarına teknolojinin etkisini ve öğretmenlerin bu istenmeyen davranışları yönetme becerisini belirlemektir. Bu araştırma mevcut durum tespitine dayalı tarama modelinde betimsel bir çalışmadır. Araştırmanın evrenini 2022-2023 eğitim-öğretim yılında Merzifon ilçesinde liselerde görev yapan öğretmenler oluşturmaktadır. Araştırmanın örneklemini ise her liselerden tesadüfi örneklem yöntemiyle belirlenen toplam 17 öğretmen oluşturmaktadır. Araştırmadaki verilere, çoğunluğu açık uçlu sorulardan oluşan anket formu uygulanarak ulaşılmıştır. Anket formu iki bölümden oluşmuştur. İlk bölümde katılımcılara cinsiyetleri, branşları, kıdemleri, çalıştıkları lise türleri ve yaşları sorulmuştur. İkinci bölümde ise öğretmenlere çoğunluğu açık uçlu sorulardan oluşan 11 soru sorulmuştur. Verilerin analizinde, nitel araştırma yöntemlerinden içerik analizi tekniği kullanılmıştır. Elde edilen verilere göre öğretmenler, öğrencilerin teknolojik bağımlılıklarının yüksek olduğunu, bağımlılıkla ilgili öğrencilerin farkındalığının olmadığını, teknoloji kaynaklı en çok karşılaşılan istenmedik davranışların telefonla oynama, sosyal medya dili kullanma, özenti davranışlar ve uyku problemi olduğunu belirtmişlerdir. Öğretmenler bu istenmeyen davranışlarla başa çıkmak için genellikle uyarıda bulunduklarını, tavsiye verdiklerini ve telefonları topladıklarını ifade etmişlerdir. Öğretmenler, okullarda bu tür sorunlar için öğrencileri ilgi ve yetenekleri doğrultusunda yönlendirmek, sorumluluk vererek sosyalleşmelerini sağlamak, aile içi iletişimi arttırmak ve telefonları yasaklamak gibi çözüm önerileri sunmuşlardır.
Il difficile rapporto tra il diritto alla privacy e il dovere di contribuzione alla spesa pubblica/The difficult relationship between the right to privacy and the duty to contribute to public expenditure.
Authors: Izzo
Published: April 2023

Da tempo oramai nel nostro Paese si trascina una situazione incresciosa in tema di contrasto all’evasione e di riscossione dei carichi affidati alle Agenzie Fiscali. Da un lato è una patologia (ormai endemica) della società italiana, ma al contempo il fenomeno dell’evasione ha conosciuto una recrudescenza a causa dell’applicazione strettissima del diritto della privacy nei confronti dell’esercizio del potere di accertamento dell’imponibile da parte delle Agenzie Fiscali. Da qui la necessità di riscoprire la dicotomia tra diritti e doveri nel nostro ordinamento da cui potrebbe derivare un bilanciamento dei principi costituzionali più adeguato alle necessità reali del Sistema Paese.
Teclistamab versus real-world physician’s choice of therapy in triple-class exposed relapsed/refractory multiple myeloma
Authors: Krishnan Amrita , Nooka Ajay K , Chari Ajai , Garfall Alfred L , Martin Thomas G , Nair Sandhya , Lin Xiwu , Qi Keqin , Londhe Anil , Pei Lixia , Ammann Eric , Kobos Rachel , Smit Jennifer , Parekh Trilok , Marshall Alexander , Slavcev Mary , Usmani Saad Z
Published: April 2023

Aim:
We compared the effectiveness of teclistamab versus real-world physician’s choice of therapy (RWPC) in triple-class exposed relapsed/refractory multiple myeloma.
Materials & methods:
MajesTEC-1 eligibility criteria were applied to the RWPC cohort. Baseline covariate imbalances were adjusted using inverse probability of treatment weighting. Overall survival, progression-free survival and time to next treatment were compared.
Results:
After inverse probability of treatment weighting, baseline characteristics were similar between cohorts (teclistamab, n = 165; RWPC, n = 364 [766 observations]). Teclistamab treated patients had numerically better overall survival (hazard ratio [HR]: 0.82 [95% CI: 0.59–1.14]; p = 0.233) and significantly greater progression-free survival (HR: 0.43 [0.33–0.56]; p < 0.0001) and time to next treatment (HR: 0.36 [0.27–0.49]; p < 0.0001) versus the RWPC cohort.
Conclusion:
Teclistamab offered clinical benefit over RWPC in triple-class exposed relapsed/refractory multiple myeloma.
Will Digital Disclosure Affect Corporate Stocks? - Based on Stakeholders' Cognition
Authors: Sun Qiong , Shi Yaqi
Published: April 2023

Digital transformation has given enterprises new development power, so can digital transformation disclosure indirectly enhance enterprise value and then affect enterprise stocks? This study collects the posts related to digital transformation published by 34 listed companies in China's top 100 in the four financial newspapers and periodicals from 2018 to 2021 as a sample, takes the disclosure of digital transformation of three enterprises as explanatory variables, and makes an empirical analysis on the impact degree of stocks of different main enterprises from the perspective of stakeholders based on hypocrisy theory and organizational facade theory. Research shows that different types of hypocrisy strategies will have different effects on corporate stocks. Among them, digital transformation action disclosure has a significant positive impact on enterprise stocks, speech and decision disclosure have a negative impact on enterprise stocks, and speech disclosure has a more significant impact than decision disclosure. In addition, according to the heterogeneity analysis of enterprise nature and industry category, the results show that non-state-owned enterprises and energy enterprises are more sensitive to digital transformation, have a stronger willingness to actively transform, and have a more significant impact on enterprise stocks. This conclusion provides a theoretical reference for China's listed enterprises to enhance enterprise value.
Materiellrechtliche und gleichheitsrechtliche Aspekte der steuerlichen Begünstigung von Sanierungserträgen gemäß § 3a EStG
Authors: Jagolski Max
Published: April 2023

The success of restructurings regularly depends decisively on the tax treatment of profits triggered by reorganization measures. However, the application of the tax exemption of Section 3a EStG, which was created for this purpose, is fraught with conflict due to numerous questions of interpretation. The work therefore comprehensively identifies the known and newly emerged problems with regard to their scope of application, requirements and legal consequences, develops practical solutions on the basis of the rele-vant literature and thus offers a reliable aid for restructuring practice. In a second focus, the work is devoted to an examination of the compatibility of Section 3a EStG with the general principle of equality of Article 3 para 1 GG.
Analyzing the volatility spillover and cointegration relationship between daily spot West Texas intermediate crude oil price and US dollar
Authors: ALTUNÖZ Utku
Published: April 2023

In the study, it is aimed to analyze the diffusion and cointegration relationship between WTI and US Dollar in the period of 2016-2021. In the study, after a comprehensive literature review of the theoretical review, the econometric analysis section was started. In the first part of the analysis, the short and long-term relationships between the variables were examined with the autoregressive distributed lag methodology and the existence of a cointegration relationship was reached. According to the findings, the effect of WTI on foreign exchange volatility in the long run is statistically significant and negative. In the short-term evaluation, ECT is negative and significant within expectations. In this context, the changes between the variables approach the long-term equilibrium level. According to the results obtained in the causality and variance causality analyzes applied in the last part of the analysis, it is understood that there is a volatility spillover effect from WTI to foreign currency.
Life after the Pandemic and Nature
Authors: Hashimoto Noriko ,   Philosophy Documentation Center
Published: April 2023

In the circular sphere around the Pacific Ocean many volcanos have erupted, and, because of tectonic plates, numerous earthquakes have occurred. In Tonga, especially, the resulting devastation has been beyond our wildest imagination. Regarding such natural phenomena, we could not predict anything. Likewise, the Covid-19 pandemic appeared suddenly, and no one can say when its destruction will end. Protective measures against infection have affected the nature of our social interactions: masking has changed our spatial consciousness; observing social distancing has made us less dependent on one another and has influenced us to seek solitude. As a result, inter-subjectivity—the foundation of ethics—has been broken. All of these effects on our interpersonal relationships have instilled in us a new attitude towards nature, because the human being is a part of nature. This new attitude with nature opens up a new paradigm: dialogues with nature and their co-operative activities must be demanded, and we must wait for nature’s movement and ask for its help. It is, in a way, the traditional artistic attitude toward nature.
Indigenous Eco-Apocalypticism
Authors: Kaup Monika ,   International Association for Environmental Philosophy
Published: April 2023

Davi Kopenawa and Bruce Albert’s 2010 collaborative work, The Falling Sky: Words of a Yanomami Shaman, centers on a prophetic warning of impending apocalyptic collapse due to anthropogenic environmental destruction. An indigenous contribution to the contemporary burst of eco-apocalyptic writing and the search for a new ecological social order, The Falling Sky challenges the temporal vector of Euroamerican eco-apocalypticism. Instead of the teleological axis of anthropocentric temporality (the emergence of homo sapiens as the pinnacle of evolution), it refers us to a temporality of terrestrial life, where homo sapiens is just one more living species in the web of life.
A Hegelian Perspective on Nature Recognition
Authors: Iversen Simon Nørgaard ,   International Association for Environmental Philosophy
Published: April 2023

Recent posthuman theories of nature recognition seek to move beyond Hegel’s anthropological starting point. This article serves as a critical rejoinder to such posthuman attempts by taking aim at posthumanism’s flat ontology and concept of agency. Instead, it is suggested that a genuine Hegelian starting point is better suited to discern the complex interrelationship between the human and nonhuman. It is argued that a Hegelian theory of recognition that takes Hegel’s Philosophy of Nature and Philosophy of Mind into consideration can give nature its due while simultaneously preserving humans as the primary locus of agency in answering current environmental problems.
Risk Factors Analysis of Retained Placenta at Regional Public Hospital of Muntilan
Authors: Pujiyani Honesty , Putri Nindi Pramesthi Vardila , Pujiati Esthi
Published: April 2023

About 15 % to 20 % of maternal mortality due to postpartum hemorrhage caused by retained placenta. There are risk factors that lead to retained placenta in labor. The purpose of this study was to determine the risk factors which most influence the incidence of retained placenta. This was observational analytic study with case control study design. The population were all mothers who were treated in Regional Public Hospital of Muntilan at January 2019 to November 2022. The sampling method of case used simple random sampling technique. Data were obtained from medical records. Analysis which used in this study were chi square test. The results showed that there was a significant difference between the spacing of delivery (p-value = 0.004) in the case group and the control group, while the risk factors for age, parity, and history of caesarean section did not show a significant relationship to the incidence of retained placenta (p> 0.05). Delivery interval is a risk factor that influences the incidence of retained placenta in Regional Public Hospital of Muntilan.
The Rural-Urban Divide: Family Social Capital, Family Cultural Capital, and Educational Outcomes of Chinese Adolescents
Authors: Ling Tan Claire Gek , Fang Zheng
Published: April 2023

A large body of research has been dedicated to the study of relationships between social or cultural capital and educational outcomes in Western countries. However, few studies have examined these associations in a Chinese context, and even fewer have examined the effects of both forms of capital on educational outcomes simultaneously within a familial context in China. This study offers a reformulation of the associations between family social capital and family cultural capital on the educational outcomes of adolescents in both rural and urban China. Using the structural equation modelling approach and the China Education Panel Survey, this study sheds some new insights – the presence of significant compositional differences in both family social capital and family cultural capital between rural and urban Chinese adolescents, and differential effects of both forms of capital on educational outcomes were found. Family social capital presented larger positive effects on the academic effort and educational aspiration of rural adolescents while having no positive effects in facilitating the academic achievement of both rural and urban adolescents. Meanwhile, family cultural capital presented larger positive effects for urban adolescents on all educational outcomes as compared to their rural counterparts.
Quantifying Spatio-Temporal Land Surface Temperature and Biophysical Indices for Sustainable Management of Watershed: A Study of Vishwamitri Watershed of Gujarat
Authors: Bhatt Bindu , Sharma Shashikant A. , Joshi Janak P , Patel Shashikant
Published: April 2023

Spatio-Temporal Analysis of the nexus between vegetation dynamics and climatic parameters like surface temperature is essential in environmental and biophysical studies and for monitoring and management of watersheds. This study explored the spatio-temporal distribution of land surface temperature (LST), Normalised Difference Water Index (NDWI), and Normalized Difference Vegetation Index (NDVI) and the relationship between them in the Vishwamitri watershed of Gujarat for the Pre Monsoon and Post Monsoon of the Year 2001 and 2016 using Landsat dataset. The findings of the study showed that the LST of the Vishwamitri watershed. The mean LST value of the year 2001 was 46.19°C in the pre-monsoon season and 39.27°C in the post-monsoon season. Mean LST values for the year 2016 were 49.34°C in pre-monsoon and 35.21°C in the post-monsoon season as observed. The spatial distribution of NDVI and LST reflects an inverse relationship. A strong positive correlation between LST with NDVI is observed over highly dense built-up areas. In summary, the LST is greatly controlled by surface characteristics. The results of this study illustrate there has been a dynamic change in vegetation cover of the watershed in all seasons. There was also a negative correlation between LST and NDVI in the studied years. The study concludes that there has been a degradation of vegetation and intensification of LST in the year 2016 as compared with the year 2001. This study can be used as a reference for land use and environmental planning in a tropical city.
ผลกระทบของการแพร่ระบาดของโรค COVID-19 ต่อพฤติกรรมการเดินทางของผู้โดยสารรถไฟฟ้าขนส่งมวลชนในกรุงเทพมหานครและปริมณฑล
Authors:   , จารุวัฒนานนท์ จณิตตา
Published: April 2023

การแพร่ระบาดของโรคติดเชื้อไวรัสโคโรนา 2019 (COVID-19) ส่งผลให้เกิดการเปลี่ยนแปลงพฤติกรรมในการเดินทาง กล่าวคือประชาชนมีแนวโน้มหลีกเลี่ยงการเดินทางด้วยระบบขนส่งสาธารณะเพื่อลดความเสี่ยงในการติดเชื้อ และหันไปใช้รถยนต์ส่วนบุคคลซึ่งอาจส่งผลต่อประสิทธิภาพการจราจรและขนส่งในภาพรวม ทั้งนี้การใช้มาตรการป้องกันการแพร่ระบาดของ COVID-19 ที่ดีจะสามารถสร้างความเชื่อมั่นให้กับประชาชนในการใช้ระบบขนส่งสาธารณะ และลดการเปลี่ยนแปลงพฤติกรรมการเดินทางไปใช้รถยนต์ได้ งานวิจัยนี้มีวัตถุประสงค์เพื่อศึกษาผลกระทบของมาตรการป้องกัน COVID-19 ได้แก่ มาตรการด้านการกักตัว การสวมหน้ากากอนามัย การฉีดวัคซีน ปัจจัยด้านลักษณะทางเศรษฐกิจและสังคม และทัศนคติเกี่ยวกับการแพร่ระบาดของ COVID-19 ต่อการตัดสินใจเลือกรูปแบบการเดินทางในสถานการณ์สมมติที่มีเงื่อนไขของจำนวนผู้ติดเชื้อ และสัดส่วนของผู้ได้รับวัคซีนที่แตกต่างกัน โดยใช้ข้อมูลจากการสำรวจข้อมูลแบบ Stated Preference ซึ่งมีกลุ่มตัวอย่างเป็นผู้ที่ใช้รถไฟฟ้าในการเดินทางและมีทางเลือกในการเดินทางเป็นรถยนต์ส่วนบุคคลหรือแท็กซี่ โดยทำการวิเคราะห์ผลกระทบของมาตรการและปัจจัยอื่น ๆ ด้วยวิธีสถิติเชิงพรรณนา และแบบจำลองโลจิตพหุนาม ในการวิเคราะห์ปัจจัยที่ส่งผลต่อการตัดสินใจในการเลือกรูปแบบการเดินทางในแต่ละสถานการณ์ จากผลการศึกษานี้แสดงให้เห็นว่า หากจำนวนผู้ติดเชื้อเพิ่มขึ้น รวมถึงหากมีการผ่อนปรนมาตราการการสวมหน้ากากอนามัยขณะเดินทางและมาตรการการกักตัวผู้ที่มาจากต่างประเทศจะส่งผลให้ประชาชนหลีกเลี่ยงการใช้รถไฟฟ้าจริง ซึ่งผู้ที่มีแนวโน้มจะเปลี่ยนแปลงพฤติกรรมการเดินทาง คือ ผู้เดินทางเพศชาย ผู้ที่มีผู้พักอาศัยร่วมกันที่อายุต่ำกว่า 12 ปี มีใบอนุญาตขับขี่รถยนต์ ผู้ที่คิดว่าไม่สามารถป้องกันตัวเองจากการติดเชื้อ COVID-19 ได้ ผู้ที่เห็นด้วยอย่างยิ่งว่าควรมีการรณรงค์การใส่หน้ากากอนามัยในพื้นที่สาธารณะ ผู้ที่เห็นด้วยว่าไม่ควรมีการผ่อนปรนให้ทำกิจกรรมที่อาจก่อให้เกิดความเสี่ยงในการแพร่ระบาด และผู้ที่เห็นด้วยอย่างยิ่งว่าการใช้พื้นที่ร่วมกันในระบบขนส่งสาธารณะเพิ่มความเสี่ยงในการติดเชื้อ อย่างไรก็ดีหากจำเป็นต้องมีการผ่อนปรนมาตรการต่าง ๆ (มาตรการสวมหน้ากากอนามัย มาตรการการกักตัวสำหรับผู้ที่เดินทางมาจากต่างประเทศ) จำเป็นต้องมีมาตรการฉีดวัคซีนควบคู่ไปด้วยก็จะสามารถลดสามารถลดแนวโน้มที่คนจะเปลี่ยนแปลงรูปแบบการเดินทางได้
สมบัติของจีโอพอลิเมอร์คอนกรีตเสริมเส้นใยที่ใช้มวลรวมรีไซเคิล
Authors:   , ฮามคำไพ กานต์ธิปก
Published: April 2023

งานวิจัยนี้มีวัตถุประสงค์เพื่อพัฒนาวัสดุคอนกรีตที่เป็นมิตรต่อสิ่งแวดล้อม โดยการผลิตจีโอพอลิเมอร์คอนกรีตที่ใช้มวลรวมละเอียดจากเศษหินแกรนิตจากโรงโม่หินที่นำกลับมาใช้ใหม่ ซึ่งเศษหินแกรนิตจะถูกใช้แทนที่ทรายธรรมชาติในปริมาณร้อยละ 0, 25, 50 และ 100 โดยน้ำหนัก เส้นใยพอลีโพรไพลีน (PP) จะถูกใช้เพื่อพัฒนากำลังรับแรงดัดและความเหนียวของคอนกรีต โดยเส้นใยจะถูกเพิ่มลงในคอนกรีตในปริมาณร้อยละ 0, 0.5 และ 1.0 โดยปริมาตรของคอนกรีต  จากผลการทดสอบแสดงให้เห็นว่าเศษแกรนิตสามารถที่จะนำมาใช้แทนที่ทรายธรรมชาติได้ ค่าการไหลแผ่และกำลังรับแรงอัดที่อายุบ่ม 7 วัน เพิ่มขึ้นเมื่อใช้เศษแกรนิต ในทางตรงกันข้ามกับกำลังรับแรงอัด กำลังรับแรงดัดจะเพิ่มขึ้นเมื่อเส้นใยพอลีโพรไพลีนถูกเพิ่มลงในส่วนผสมและค่าความเหนียวของคอนกรีตที่ถูกปรับปรุงให้เพิ่มขึ้นเช่นกัน ปริมาณเส้นใยพอลีโพรไพลีนร้อยละ 1.0 เหมาะสมในการปรับปรุงความเหนียวของคอนกรีต แต่อย่างไรก็ตามกำลังหลังเผาไฟจะลดลงอย่างมีนัยสำคัญในคอนกรีตที่เสริมเส้นใยเมื่อเปรียบเทียบกับคอนกรีตที่ไม่เสริมเส้นใย
การพยากรณ์กำลังไฟฟ้าของระบบเซลล์แสงอาทิตย์แบบติดตั้งอุปกรณ์วัดด้วยโครงข่ายประสาทเทียม
Authors:   , น้ำแก้ว ภาณุพงศ์
Published: April 2023

ข้อจำกัดอย่างหนึ่งของพลังงานแสงอาทิตย์คือกำลังไฟฟ้าที่ได้นั้นมีความไม่แน่นอนเนื่องมาจากสภาพภูมิอากาศที่เปลี่ยนแปลง ซึ่งความไม่แน่นอนนี้ส่งผลกระทบต่อการผลิตไฟฟ้า คุณภาพของระบบไฟฟ้า และจัดสรรพลังงานไฟฟ้าให้เหมาะสมกับการใช้ไฟฟ้าในวันถัดไปได้อย่างมีประสิทธิภาพ ดังนั้น จึงมีความจำเป็นที่ต้องมีการพยากรณ์กำลังไฟฟ้าเพื่อเพิ่มประสิทธิภาพให้ระบบเซลล์แสงอาทิตย์ งานวิจัยนี้จึงได้นำเสนอวิธีการพยากรณ์กำลังไฟฟ้าของระบบเซลล์แสงอาทิตย์ในวันถัดไปโดยใช้อุปกรณ์วัด โดยศึกษาและทดลองกับระบบเซลล์แสงอาทิตย์ขนาด 4.5 กิโลวัตต์ ที่ติดตั้งบนหลังคาที่พักอาศัยจริง

งานวิจัยนี้ใช้โครงข่ายประสาทเทียมในการพยากรณ์ค่ากำลังไฟฟ้าของระบบเซลล์แสงอาทิตย์ทุก ๆ 5 นาที โดยศึกษาทดลองหาข้อมูลป้อนเข้าที่เหมาะสมโดยเลือกจากปัจจัยที่มีผลต่อกำลังไฟฟ้าของระบบเซลล์แสงอาทิตย์  ทั้งนี้ได้ศึกษาทดลองฟังก์ชันถ่ายโอนของโครงข่ายประสาทเทียมแบบต่าง ๆ เพื่อเลือกใช้ฟังก์ชันถ่ายโอนที่ให้ค่าความผิดพลาดในการพยากรณ์ต่ำที่สุด

จากการศึกษาได้เลือกข้อมูลป้อนเข้าที่เหมาะสมซึ่งส่งผลต่อกำลังไฟฟ้าของระบบเซลล์แสงอาทิตย์ ได้แก่ ความเข้มของแสงอาทิตย์ อุณหภูมิบนแผงเซลล์แสงอาทิตย์ และกำลังไฟฟ้าของเซลล์แสงอาทิตย์วันก่อนพยากรณ์ จากการทดลองพบว่ารูปแบบฟังก์ชันถ่ายโอนของโครงข่ายประสาทเทียมที่มีค่าความผิดพลาดของการพยากรณ์ต่ำที่สุด คือ โครงข่ายประสาทเทียมแบบ 2 ชั้นซ่อน Tan sigmoid - Log sigmoid และชั้นเอาต์พุต Pure Linear ซึ่งมีค่าความผิดพลาดเฉลี่ยตลอดทั้งปีอยู่ที่ 18.80% จากนั้นได้นำโครงข่ายประสาทเทียมดังกล่าวไปเขียนเป็นโปรแกรม MATLAB เพื่อช่วยให้สามารถติดต่อกับอุปกรณ์อื่นได้ในอนาคต
การลดทอนกระแสรั่วไหลความถี่สูงสำหรับระบบอินเวอร์เตอร์พีวีชนิดเชื่อมต่อโครงข่ายแบบไร้หม้อแปลง
Authors:   , อำไพ ปวเรศ
Published: April 2023

วิทยานิพนธ์นี้นำเสนอการลดกระแสรั่วไหลความถี่สูงในระบบอินเวอร์เตอร์พีวีชนิดเชื่อมต่อโครงข่ายแบบไร้หม้อแปลง ผ่านการลดทอนขนาดของแรงดันโหมดร่วมรวมของระบบ ณ องค์ประกอบความถี่การสวิตช์ อันเกิดจากวงจรทบระดับและอินเวอร์เตอร์สามเฟส โดยอาศัยแบบจำลองโหมดร่วมที่มีความแม่นยำที่แสดงแรงดันโหมดร่วมจากทั้งสองวงจรด้วยแหล่งจ่ายแรงดัน 2 แหล่งต่ออนุกรมกัน ในเบื้องต้นงานวิจัยนี้จะนำเสนอการวิเคราะห์แรงดันโหมดร่วมของทั้งสองวงจรด้วยอนุกรมฟูริเยร์ หลังจากนั้นจะนำเสนอแนวคิดการมอดูเลตอินเวอร์เตอร์แบบใหม่ที่นำค่าวัฏจักรงานของสวิตช์ในวงจรทบระดับมาพิจารณาร่วมกับของอินเวอร์เตอร์ เพื่อให้เกิดการหักล้างกันเองของแหล่งจ่ายแรงดันโหมดร่วมทั้งสอง แนวคิดดังกล่าวจะประกอบไปด้วย 2 ส่วน ส่วนแรกคือการกลับเฟสกันของสัญญาณคลื่นพาห์ที่ใช้ในการสร้างสัญญาณขับนำสวิตช์ของวงจรทบระดับและอินเวอร์เตอร์เพื่อให้แรงดันโหมดร่วมหักล้างในคาบการสวิตช์เดียวกัน และส่วนที่สองคือการเลือกค่าแรงดันลำดับศูนย์เพื่อสร้างการมอดูเลตอินเวอร์เตอร์แบบ 2 แขนแบบดัดแปลงที่จะเลือกการทำงานระหว่างโหมดการมอดูเลต 2 แขนชนิดเปิดตลอดหรือชนิดปิดตลอด แนวทางการเลือกโหมดการมอดูเลตของอินเวอร์เตอร์ทั้ง 2 ชนิด จะพิจารณาจากผลต่างของแรงดันดันโหมดร่วมระหว่างอินเวอร์เตอร์และวงจรทบระดับ และจะใช้โหมดการมอดูเลต 2 แขนที่ทำให้ผลต่างของแรงดันโหมดร่วมมีค่าน้อยที่สุด ผลการจำลองการทำงานยืนยันความถูกต้องของแนวคิดที่นำเสนอ อีกทั้งผลทดลองยังแสดงถึงความสามารถในการลดทอนแรงดันโหมดร่วมและกระแสรั่วไหลโดยเฉพาะที่องค์ประกอบความถี่การสวิตช์ได้อย่างมีนัยสำคัญ
การสร้างสรรค์ผลงานทางดุริยางคศิลป์: ตับเรื่องกัลยาณมิตร
Authors:   , หนูยี่ ปกรณ์
Published: April 2023

วิทยานิพนธ์นี้มีวัตถุประสงค์เพื่อศึกษาชีวประวัติ ผลงาน และหาอัตลักษณ์ทางดนตรีครูดนตรีบ้านพาทยโกศล 6 ท่าน เพื่อนำไปสู่การสร้างสรรค์ผลงานทางดุริยางคศิลป์: ตับเรื่องกัลยาณมิตร ใช้ระเบียบวิธีวิจัยเชิงคุณภาพและวิจัยเชิงสร้างสรรค์โดยศึกษาข้อมูลเอกสารเรื่องแนวคิด ทฤษฎี เอกสารและงานวิจัยที่เกี่ยวข้อง รวมทั้งการสัมภาษณ์องค์ความรู้จากทายาทบ้านพาทยโกศลและผู้เชี่ยวชาญทางด้านดุริยางคศิลป์ไทย

ผลการวิจัยพบว่าครูดนตรีไทยบ้านพาทยโกศลทั้ง 6 ท่าน เป็นครูดนตรีท่านสำคัญของวงการดนตรีไทยที่สืบทอดวิชาความรู้ดนตรีไทยมาตั้งแต่ต้นกรุงรัตนโกสินทร์ ทั้งยังเข้มงวดระเบียบวิธีบรรเลงและขับร้องอย่างโบราณอย่างเคร่งครัด เรื่องอัตลักษณ์ทางดนตรีทั้ง 6 ท่านมีอัตลักษณ์ส่วนตัวทางดนตรีที่แตกต่างกัน แต่มีอัตลักษณ์ร่วมเดียวกัน ได้แก่ การแบ่งมือทำนองหลัก วิธีการบรรเลง กลวิธีการขับร้อง และวิธีการประพันธ์

การสร้างสรรค์ผลงานทางดุริยางคศิลป์: ตับเรื่องกัลยาณมิตร แบ่งการประพันธ์ออกเป็น 3 ส่วนคือ 1. การประพันธ์บทร้อง ใช้ผลการวิจัยส่วนของชีวประวัติและผลงานทางดนตรี ตลอดถึงการสัมภาษณ์จากบุคคลที่เกี่ยวข้องมาประพันธ์ในลักษณะของกลอนสุภาพ 2. การประพันธ์ทำนอง ใช้ผลการวิจัยในส่วนของอัตลักษณ์ทางดนตรีของแต่ละท่านมาเป็นแรงบันดาลใจในการประพันธ์ 3. การประพันธ์ทางขับร้อง ใช้กลวิธีการประพันธ์การขับร้องจากผลการวิจัยการประพันธ์ทางขับร้องเพลงวาของคุณหญิงไพฑูรย์ กิตติวรรณ (ศิลปินแห่งชาติ) มาเป็นแนวทางในการประพันธ์ทางขับร้องทั้ง 6 เพลง นอกจากนี้ยังสอดแทรกอัตลักษณ์ร่วมทางดนตรีของบ้านพาทยโกศล วิธีการขับร้อง และบรรเลงเพื่อให้ได้อรรถรสทางดนตรีตามแนวทางที่บ้านพาทยโกศลสืบทอดไว้จนถึงปัจจุบัน
Acolhimento e receptividade pela mediação da informação
Authors: Prado Marcos Aparecido Rodrigues do
Published: April 2023

Este artigo tem por objetivo apresentar fundamentações que enalteçam a importância referencial da ideia de acolhimento como princípio a ser instituído nas práticas de mediação da informação. Introduz à noção de acolhimento por um conjunto de ponderações que expressa repertórios de elementos teóricos agregando a iminência da receptividade informacional como fator determinante dos processos de mediação da informação. O corpus teórico se utiliza de um amplo espectro bibliográfico de publicações interdisciplinares que garantem respaldo dos aportes delineadosc por densa revisão de literatura. Para o arcabouço metodológico utilizou-se das categorias de análises em que as citações diretas serviram como elementos dialógicos a fim de se garantir integração discursiva repercutida no contexto das fundamentações apresentadas. Tais propósitos sistemáticos delinearam as evidências da demarcação teórica elaborada em narrativas que embasaram os argumentos persuasivos aqui sustentados. Como o alcance desta pesquisa tem escopo de reflexões teóricas, os resultados oferecidos representam elucubrações sobre grupos sociais e as individualidades humanas partindo do respeito às diversidades socioculturais e suas características subjetivas para o desenvolvimento da mediação da informação. Destaca-se ainda a necessidade de outros estudos teóricos e acréscimos de pesquisas exploratórias sobre o tema. Pois, tais esforços colaboram para orientar uma ideia mais consistente de acolhimento que se estrutura pela noção de receptividade das linguagens informacionais convencionadas na mediação e suas contingências substanciais para apropriação da informação.
Ratio Studiorum: bases e fundamentos das ações educativas nos colégios dos jesuítas
Authors: Braga Ana Cláudia Vieira , Silva Maria Abádia da
Published: April 2023

Este artigo tem por objetivo analisar no Ratio Studiorum as bases e fundamentos das ações educativas nos colégios dos jesuítas. Em termos teórico-metodológicos o estudo abriga-se nas cartas jesuíticas e nas referências bibliográficas nas áreas de educação e filosofia priorizando o projeto de colonização portuguesa e a política educacional dos jesuítas para a formação do homem útil e universal e, em seguida percorre o Segundo Discurso e Emilio de Rousseau para compreender como as faculdades perfectibilidade e educabilidade despertam o vir a ser humano e nos torna ser históricos e sociais. Aponta que, nas instituições educativas, o processo de evangelização, conversão e catequização dos jesuítas seguiram as práticas de formação de homem ligado pela fé católica à perfeição divina, mas também atuaram para formar o homem útil, disciplinado e civilizado, instituindo as bases de organização da vida social e escolar brasileira.
Structural Analysis of Building with Diaphragm: A Review
Authors:   Department of Civil Engineering, Sam Global University Bhopal, India., Pandit Ajay , Kodwani Hitesh
Published: April 2023

The way of behaving of built up substantial second opposing casing structures in late tremors all around the world has featured the outcomes of lackluster showing of shaft segment joints.Huge measure of exploration completed to comprehend the mind boggling systems and safe way of behaving of bar section joints has gone into code proposals. The plan of built up substantial designs exclusively relies upon different boundaries like bowing second; shear power and stress prompted in a specific individual from a construction. Variety in the size of these boundaries might modify the whole plan of a specific component.In this paper we are introducing survey of writing connected with examination of designs considering stomach impact. Key Word: Slab, Review, Analysis, Structure, Forces, Stresses.
Implementation Of Mathematics E-Learning For Class IV Students Of MI Al-Azhar Menganti Gresik
Authors: Wanda Hamidah Nur Jannah , Bahrozi Imam
Published: April 2023

Education is the process of changing attitudes and behavior of a person or group of people in an effort to mature human beings through teaching and training efforts. Learning mathematics at this time due to covid-19, learning is very inefficient and cannot meet face-to-face between teachers, students and friends. Therefore, because of the COVID-19 pandemic, students are asked to study at home using e-learning that utilizes social media. This study uses a descriptive qualitative approach with the research subject of the principal, the head of the curriculum, class teachers and fourth grade students. Data collection methods used are observation, interviews and documentation. The data analysis used is the Miles and Huberman model with data reduction techniques, data presentation and conclusion drawing. The results of the research regarding the implementation of e-learning mathematics for class IV MI-Azhar students are the implementation of learning that is carried out without direct face-to-face between teachers and students as well as accessing the internet network and using social media to exchange information and interactions. Among them is by using the WhatsApp application, Google Meet and YouTube.
Parenting As An Effort To Know Character And Stimulate The Development Of Early Childhood Learning
Authors: Fithriyah Ainul , Anas Ma’arif Muhammad , Suprayitno Suprayitno , Maimunah Siti , Citraningrum Anisah
Published: April 2023

Kesamben Kulon Village is one of the villages in Wringinanom District, Gresik Regency, East Java Province. The geographical condition of this village is dominated by rice fields, this causes most of the people to make a living as farmers. The community in this village is faced with several problems, namely the high economic level of the lower middle class and the low level of education. Until now, this village is still faced with problems in the field of education. One of them is the pattern of parents in educating their children which is done self-taught. That is, parents educate their children based on the experience they have gained, not based on educational knowledge. This will have an impact on the success of children in passing their developmental tasks. Educating with this pattern will make children not optimal in their growth and development. This community service program is to provide training to parents regarding how to recognize character and stimulate the development of early childhood learning (Parenting). The service method carried out is divided into three stages, namely, preparation, implementation and evaluation. The benefit generated by this program is that parents will gain knowledge and skills on how to help early childhood children grow and develop according to their potential through appropriate stimulation.
Importance of basic research in the academic training of health science students
Authors: Penissi Alicia
Published: April 2023

Dear Editor:
I have been pleasantly impressed by the initiative to include as a topic of consideration, in the Interamerican Journal of Health Sciences, the importance of basic research in the academic training of health sciences students.
There is no doubt that the construction of knowledge in the medical sciences is a complex process in continuous transformation, which is born and develops from the basic sciences. The creation of new knowledge at this level is carried out through scientific research, which is why the participation of students in basic research constitutes an optimal instance of training for their subsequent and gradual integration into clinical, epidemiological or technological research projects.
Basic research initiates health science students in learning a range of skills and new knowledge that stimulates critical thinking, curiosity and creativity. It is a powerful formative process, as creative inspiration for clinical and technological application arises from basic research. Basic science training enables the transfer of appropriately trained talent to the field of technology and the clinic. The most successful entrepreneurial initiatives of recent times have originated in basic research work that has matured in universities and research centres, both public and private. Basic science is necessary for the progress of a country and there is every reason to promote the formation of professionals with training in basic research, starting from the student stage at university. This is something that many of us value, for which we have fought and continue to fight.
In relation to the above, it is also necessary for medical science degrees to consider revising their curricular designs. The inclusion of research activity in the curriculum should be organised systematically, taking into account the degree of mastery of the scientific method by the students and their object of work, in order to contribute to the formation of a scientific attitude during their studies, which favours the development of new cognitive interests and motivation for research. Research is considered to be "the highest expression of the ability that a student must master in any kind of educational process". Therefore, student scientific activity should be a determining factor in the scientific-technical and comprehensive education of university students.
It has been shown that health science students who start early in basic research are later very productive in the clinical and scientific field, as well as in the field of public health, demonstrating strong skills to generate, share, publish and apply new knowledge in health
The neuroanatomical bases of pedophilia and the importance of distinguishing genuine vs. acquired types: A systematic review
Authors: Joyal Christian C.
Published: April 2023

Neurological cases of child sexual abuse (acquired pedophilia) are sometimes used as evidence for the neuroanatomical bases of pedophilia. However, these cases seem to represent a more general syndrome of impulsivity or hypersexuality than a true modification of sexual interests. Therefore, acquired pedophilia may not be adequate to investigate the neurological correlates of pedophilia. The main goal of this study was to systematically review cases of acquired pedophilia to explore the possibility that they are more closely associated with generalized behavioral impulsivity or hyperactivity than a late onset sexual interest toward children. Following the Preferred Reporting Items for SysteMAtic reviews (PRISMA) guidelines, 64 cases of acquired pedophilia were identified. All but one were men. As expected, the mean age of onset for acquired pedophilic behaviors was higher than 50-year-old (M = 52.8-y.-o., SD = 15.6), most cases committed various additional sexual and nonsexual impulsive acts, and only a minority (19%) showed premorbid pedophilic interests. Brain damage mostly involved basal fronto-temporal regions associated with sexual, but also impulsive behaviors. It is concluded that acquired pedophilia should not be used as evidence for the neurological bases of genuine pedophilia. Psychiatric diagnoses of pedophilic disorder would also benefit from adding an exclusion criterion based on neurological etiology. Future investigations are required to determine why acquired pedophilia is almost exclusively observed in men.
Qualidade fisiológica de sementes de soja produzidas sob sombreamento
Authors: Cigel Camila , Souza Clovis Arruda de , Kandler Rodrigo , Silva Elijanara Raissa , Coelho Cileide Maria Medeiros
Published: April 2023

A baixa intensidade luminosa reduz a produção de fotoassimilados pelas plantas e consequentemente o acúmulo de reservas nas sementes. Objetivou-se avaliar a qualidade fisiológica de sementes de soja produzidas sob sombreamento iniciado em diferentes estádios fenológicos da cultura. O experimento foi conduzido em casa de vegetação, no CAV/UDESC, durante a safra 2018/2019, em delineamento inteiramente casualizado, com nove tratamentos e 10 repetições. Os tratamentos foram constituídos por nove lotes de sementes, sendo oito obtidos de plantas submetidas a sombreamento contínuo de 70%, iniciado em diferentes estádios fenológicos: estádio V6 (Dia Juliano 07); R1 (DJ 14); R2 (DJ 21); R3 (DJ 28); R4 (DJ 35); R5 (DJ 42); início de R6 (DJ 49); final de R6 (DJ 56), e um lote de sementes produzidas sem sombreamento (testemunha). Cada repetição foi composta por um vaso contendo uma planta de soja. Avaliou-se o potencial de germinação e vigor das sementes produzidas. A germinação de sementes de soja foi maior no lote de sementes oriundas de plantas sombreadas a partir do estádio R4 (35 DJ), com 98%, mas, os demais lotes apresentaram percentuais acima de 87%. O vigor no teste de envelhecimento acelerado foi inferior para o lote obtido de plantas sombreadas a partir de V6, com 43%. Já a massa seca de plântulas apresentou redução de 7,0 a 13,3% em relação à testemunha, quando o sombreamento foi imposto entre R3 e R6. Concluiu-se que o sombreamento contínuo de 70% em soja promoveu maior germinação de sementes quando imposto a partir do estádio R4, porém, o vigor foi afetado de maneira dependente do estádio que o sombreamento iniciou e do teste utilizado.
Desenvolvimento inicial de Euterpe oleracea Mart. em função de recipientes usados na produção de mudas
Authors: Ramos Filho Fabiano Luis de Sousa , Bandeira Neto Nazaro Cavalcante , Pantoja Cezar Dias , Nascimento Walnice Maria Oliveira do , Souza Olavo Tavares de
Published: April 2023

O açaizeiro (Euterpe oleracea Mart.) é uma espécie natural das áreas de várzea da região amazônica, sendo o estado do Pará como o maior centro de dispersão natural dessa palmeira. Grande parte de sua produção provém do extrativismo e possui potencial de incremento da produção de frutos ao projetar o cenário para o avanço do cultivo da espécie para a terra firme, mas necessita estar enquadrado nos padrões de mercado, portanto, deve-se ocorrer o aperfeiçoamento das técnicas de produção de mudas. Assim, o trabalho teve como objetivo avaliar o desenvolvimento inicial em plantas de açaizeiro, produzidas em recipientes com diferentes volumes e substratos, durante 360 dias em campo. O ensaio foi realizado no campo experimental da Embrapa Amazônia Oriental, em Belém, PA. Foram utilizadas mudas de açaizeiro da cultivar BRS Pará, produzidas em dois tipos de substratos (comercial e o convencional). Para a produção de mudas foram usados os seguintes tipos de recipientes: saco de plástico com as dimensões de 18 x 24 cm (1900 cm³), a qual é recomendada para a produção de mudas de açaizeiro e outras fruteiras e tubetes com volumes de 280, 175 e 95 cm³. O experimento foi instalado no delineamento experimental em blocos inteiramente casualizados, utilizando-se quatro repetições e cinco plantas por parcela. As avaliações em campo ocorreram a cada 60 dias após o plantio. As variáveis mensuradas foram: altura da planta, diâmetro do coleto e número de folhas. Observou-se que os tratamentos em saco de polietileno houve maior desenvolvimento nas variáveis analisadas, independente do substrato usado. Verificou-se que não houve diferença significativa entre os tratamentos resultantes de mudas produzidas em tubete. Portanto, conclui-se que as plantas de E. oleracea Mart, da cultivar BRS Pará, apresentaram maior desenvolvimento inicial quando oriundas de mudas produzidas em sacos de polietileno em relação aos demais recipientes.
Crescimento, severidade de oídio e produtividade do feijão-vagem em resposta a diferentes fontes de potássio
Authors: Gaion Lucas Aparecido , Menezes Davi Cristian Del Hoyo , Reis Aline Dell Passo , Tonini Mariana Mota , Nascimento Nilton Carlos Gonçalves , Repetti Cláudia Sampaio Fonseca
Published: April 2023

O Brasil tem enfrentado sérios problemas com o abastecimento de fertilizantes potássicos nos últimos anos. Isso tem causado a elevação dos preços e até mesmo escassez do principal fertilizante potássico utilizado pelos produtores, o cloreto de potássio. Por isso, o objetivo do presente trabalho foi avaliar um silicato de potássio nacional (K6) como fonte alternativa ao uso do cloreto de potássio para a cultura do feijão-vagem. Para tanto, sementes de feijão-vagem cv. Macarrão Rasteiro foram semeadas a campo em espaçamento de 0,50 x 0,20 m. Empregou-se o delineamento em blocos ao acaso com quatro tratamentos e cinco repetições. Os tratamentos foram constituídos da seguinte maneira: (i) testemunha – sem adubação potássica; (ii) cloreto de potássio; (iii) silicato de potássio – K6; (iv) 50% cloreto de potássio + 50% K6. Os fertilizantes foram aplicados no momento da semeadura e as doses determinadas com base na análise de solo e nas recomendações para a cultura. Foi realizada avaliação de altura de plantas, massa fresca e seca da parte aérea, massa fresca e seca de vagens, estimativa de produtividade e ocorrência de oídio, através de notas de severidade. Verificou-se que não houve influência da adubação potássica sobre o crescimento das plantas. De maneira geral, a produtividade de vagens apresentou baixa influência da adubação. Entretanto, a produtividade total de vagens foi maior em plantas adubadas com K6 em comparação a plantas adubadas com cloreto de potássio. A aplicação de K6 também contribuiu para a redução da severidade de oídio. Dessa forma, nós concluímos que o K6 é uma fonte de potássio viável em substituição ao cloreto de potássio para o feijão-vagem.
Hematological parameters in endurance horses pre and post 120 km race
Authors: Vlaeva Radka , Sabev Sasho , Ivanova Zhanina
Published: April 2023

The endurance discipline has the shortest history in Bulgaria compared with other disciplines of equestrian sports. Endurance competitions are held over distances from 40 km to 160 km. The present study focused on the effect of exercise on horses over a distance of 120 km. Changes in the following hematological parameters were investigated: Leukocytes (WBC, g/l); Erythrocytes (RBC, T/l); Platelets (PLT, g/l); Hemoglobin (Hb, g/l); Hematocrit (HCT,%); Mean corpuscular volume (MCV, fl); Mean corpuscular hemoglobin (MCH, pg); Mean cell hemoglobin concentration (MCHC, g/l), Leukogram (Eos; Bas; Neu; Lym; Mon,%) as well as some electrolytes and hormone concentration. The study aimed to establish the changes in these indicators' values before and after the competition. Analysis of the haemogram showed a significant increase in the mean values ​​of 4 of the indicators under study. No significant differences were established in MCV, MCH and MCHC. A decrease was found in the number of Lym, Eos, and Mon and a significant increase in Neu after the competition. The concentration of electrolytes (Ca, Na and K) in the blood serum decreased, and the levels of CK and LDH significantly increased.
Determinação dos extrativos totais e teor de celulose da madeira de Ipê submetida ao processo de modificação térmica
Authors: Candaten Luana , Mangini Tauana de Souza , Trevisan Rômulo , Bairros Paulo Roberto da Silva
Published: April 2023

A demanda de produtos oriundos da madeira vem se expandindo, por conta disso, há a necessidade de estudos relacionados à qualidade e aplicação desses materiais. Com isso, a presente pesquisa teve como objetivo avaliar o teor de extrativos e de celulose da madeira de Ipê submetida ao processo de modificação térmica. Para realização do estudo foram abatidos quatro indivíduos de Handroanthus chrysotrichus (Mart. ex DC.) Mattos, com 11 anos de idade. Posteriormente, confeccionaram-se amostras de 2,5 x 2,5 x 41 cm, as quais foram acondicionadas em estufa com circulação de ar forçada, nas temperaturas de 120, 150, 180 e 210 ºC, por um período de 4 h. Em seguida, porções aleatórias dos corpos de prova foram seccionadas e trituradas em moinho de facas, e então, peneiradas na fração de 40/60 mesh, para a realização dos ensaios químicos de teor de extrativos totais e teor de celulose. Os dados foram processados e submetidos ao teste de médias de Tukey, utilizando o software R. Os resultados das propriedades químicas estudadas indicaram variações de acordo com as temperaturas, não apresentando uma tendência de estabilização entre os tratamentos aplicados. Uma relação entre o comportamento dessas propriedades com as demais características tecnológicas dos trabalhos disponíveis na literatura foi observada. De modo geral, são recomendados mais estudos acerca das propriedades químicas da madeira dessa espécie associados a aplicação de altas temperaturas.