bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancement of Drilling Fluid Properties Using Nanoparticles
Authors: Al-Mahdawi Faleh H. M. , Saad Karrar 
Published: July 2023

Nanotechnology has shown a lot of promise in the oil and gas sectors, including nanoparticle-based drilling fluids. This paper aims to explore and assess the influence of various nanoparticles on the performance of drilling fluids to make the drilling operation smooth, cost effective and efficient. In order to achieve this aim, we exam the effect of Multi Wall Carbon Nanotube and Silicon Oxide Nanoparticles as Nanomaterial to prepare drilling fluids samples.
Anew method for mixing of drilling fluids samples using Ultra sonic path principle will be explained. Our result was drilling fluids with nano materials have high degree of stability.
The results of using Multiwall Carbon Nanotube and Silicon Oxide show that MWCNT have an effect on rheological properties more than SiO2 and good thermal conductivity. Also, both nano particles have potential effect on filter loss and stability of mud. The change in density was insignificant which is beneficial for many drilling operations.
Magnetic properties and Structural characterization of nanocrystalline Fe-20%A (Ni, Co and Si) alloys powders synthesized by mechanical alloying process
Authors: YOUNES Abderrahmane , ABADA Abderahim , BOUAMER Amirouche , AMRAOUI Rachid 
Published: July 2023

This study focuses on the preparation and characterization of nanocrystalline Fe-A (Ni, Co, and Si) alloy powders using mechanical alloying technique with Retsch PM 400 high energy planetary ball mill. The evolution of the phases and magnetic properties of the powders are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and vibrating sample magnetometer (VSM) as a function of grinding time. The XRD results indicate that after 20 hours of milling, the FeNi, FeCo, and FeSi phases are completely formed. The lattice deformation of FeSi alloy is 0.7%, and the grain size decreases to 17 nm, 13.5 nm, and 10 nm for FeNi, FeCo, and FeSi, respectively. SEM observations of the powder morphologies at different stages of alloy formation are also conducted. Moreover, elemental maps of Fe, Ni, Co, and Si obtained by EDS experiments confirme the XRD results on the evolution of the alloy formation. Finally, the VSM results showed that the magnetic properties of FeNi, FeCo, and FeSi alloy nanoparticles are influenced by the composition, size, and morphology of the particles. Overall, this study provides valuable insights into the preparation and characterization of nanocrystalline Fe-A (Ni, Co, and Si) alloy powders, which may have potential applications in various fields.
Pedagogo empresarial
Authors: Olivera Junior Ademir Pinto Adorno de , Guilherme Cláudia Cristina Fiorio 
Published: July 2023

Atualmente discute-se no cenário empresarial a importância de suprir a demanda e a manutenção de profissionais qualificados, assim como a formação continuada desses profissionais em serviço. Neste contexto, o profissional da Pedagogia vem ganhando cada vez mais espaço para atuar tanto na seleção quanto no desenvolvimento dos recursos humanos das empresas, uma vez que estas representam um ambiente social propício para o desenvolvimento profissional e de aprendizagens, que devem ocorrer de forma significativa. No entanto, muitas vezes o profissional responsável pelo processo de treinamento e desenvolvimento tem várias atribuições paralelas no departamento de Recursos Humanos, o que impossibilita a definição de funções e atuações coesas. Diante destes fatos, o presente estudo tem como objetivo verificar a rotina do pedagogo empresarial por meio da pesquisa qualitativa, com pesquisa de campo, tendo como instrumento de coleta de dados a aplicação de questionário semiestruturado, o qual busca desvelar as atribuições e ações desse profissional dentro de uma empresa, suas dificuldades, os meio utilizados para a resolução de problemas do cotidiano, e, por fim, contrapor a prática com a teoria pesquisada da área e do tema.
Mindsets matter for every patient and we can all help
Authors: Ring David 
Published: July 2023

Summary
People seek care when a sensation becomes a symptom (a concern). Levels of discomfort and incapability are associated with feelings of distress or unhealthy misinterpretation. To limit mental health stigma, it is important to emphasise that this is about how the human mind works (mindsets) and not just about mental illness. Experts in mental health and in pathophysiology can work together, each doing their part to optimise mindset.
La evaluación institucional como estrategia de mejoramiento: una mirada sistémica para potenciar la transformación educativa
Authors: Hernández Barbosa Rubinsten 
Published: July 2023

La evaluación es un aspecto central de todas las instituciones educativas que tengan como propósito el mejoramiento continuo, por lo tanto, es parte constitutiva de su gestión. Este artículo reflexiona sobre aspectos claves que deben ser considerados en el proceso evaluativo y aporta una mirada sistémica de lo que implica pensar la evaluación, desde la construcción de una cultura institucional que promueva procesos de reflexión, investigación y acción en el currículo. La evaluación institucional requiere planeación y organización para favorecer la recolección de información confiable, emitir juicios de valor que conlleven a la toma de decisiones pertinentes con los intereses y necesidades de la institución. Se describe la propuesta de un modelo de evaluación institucional producto de la experiencia de los autores en este tipo de procesos, que puede ser una orientación y adaptado a las diferentes instituciones atendiendo a sus necesidades y particularidades.
Territorio, historia e identidad: Sus El Aksa o Sáhara Occidental
Authors: Hernández Ángela 
Published: July 2023

Tras pasar las murallas naturales que constituyen las cordilleras del Atlas y del Anti Atlas las llanuras del Sáhara atlántico constituyen una región periférica de Marruecos. Integrada en la administración marroquí desde 1976, dotada de regímenes fiscales y presupuestos especiales, de privilegios económicos y prebendas a la población autóctona, esta región ha evolucionado, produciéndose cambios importantes en su estructura económica y demográfica debido a la intervención de agentes estatales y privados y al impulso de una política migratoria por parte del estado a causa de la baja densidad de población agravada por los acontecimientos producidos durante el proceso descolonizador. Un territorio periférico en el que la identidad de la población saharaui se vincula a un espacio territorial y se construye a partir de recuerdos y de olvidos.Abstract:After passing the natural walls that form the ridges of the Atlas and the Anti Atlas, the Sahara Atlantic plains constitute a peripheral region of Morocco. This region has evolved integrated into the Moroccan Administration since 1976, with a special tax and budget systems, with economic privileges for the indigenous population, leading to major changes in economic and demographic structure due to the intervention of state and private operators and the empowerment by the state of an immigration policy counteracting the low population density aggravated by the events occurring during the decolonization process. A peripheral area in which the identity of the Sahrawi people is linked to territorial space and created based on memories and oblivion.
Gaya Mengajar Inklusi untuk Meningkatkan Hasil Belajar Gerak Spesifik Servis Bawah Bola Voli Siswa Kelas VII
Authors: Ferawati Ferawati , Mashud Mashud , Warni Herita 
Published: July 2023

Penelitian ini bertujuan meningkatkan dan memperbaiki keterampilan servis bawah bolavoli menggunakan gaya mengajar inklusi. Metode pada penelitian ini menggunakan metode Action Research classroom atau disebut juga penelitian tindakan kelas. Rancangan penelitian mengunakan model model Kurt Lewin yang terdiri dari empat tahapan yaitu, perencanaan, pelaksanaan, observasi dan refleksi. Teknik analisis data yang digunakan adalah deskriptif kualitatif dan kuantitatif. Hasil dari penelitian menunjukkan ada peningkatan dalam hasil pembelajaran servis bawah bolavoli dengan menggunakan gaya mengajar inklusi. Subyek penelitian peserta didik kelas VII SMP Negeri 3 Danau Panggang berjumlah 27 peserta didik yang terdiri dari 10 laki-laki dan 17 perempuan. Berdasarkan analisis data menunjukkan hasil pembelajaran servis bawah bolavoli siklus I yaitu 44,44% (12 peserta didik) selanjutnya pada siklus II terlihat peningkatan sebesar 81.48% (22 peserta didik) dinyatakan telah tuntas. Capaian hasil belajar peserta didik saat pembelajaran servis bawah bolavoli secara menyeluruh disiklus I 0 ≤ KKM < 75 dikatakan capaian belajar belum tuntas, kemudian terjadi peningkatan disiklus II mencapai 75 ≥ KKM ≤ 100 capaian belajar dikatakan tuntas belajar, maka capaian hasil keterampilan yang terjadi disiklus II meningkat 62.96% dan penuruan 11.12%. Hasil dari analisis capaian belajar terlihat tuntas hasil belajar servis bawah bolavoli menggunakan gaya mengajar inklusi dari siklus I ke siklus II meningkat belajar baik individual maupun secara keseluruhan.
Peningkatan Kapasitas Antioksidan Akibat Latihan Aerobik Intensitas Sedang
Authors: Yunus Moch , Hapsari Anindya , Umar Umar 
Published: July 2023

Latihan aerobik intensitas sedang diindikasikan mampu meningkatkan kapasitas antioksidan dalam tubuh manusia, yang salah satunya ditandai dengan peningkatan SOD plasma. Penelitian ini bertujuan untuk mengkaji besarnya peningkatan kapasitas antioksidan akibat latihan aerobik intensitas sedang. Penelitian ini merupakan penelitian eksperimental semu dengan pendekatan kuantitatif dan rancangan one group pretest and posttest design. Populasi dalam penelitian ini adalah mahasiswa jurusan Pendidikan Kepelatihan Olahraga Univeristas Negeri Malang. Teknik sampling menggunakan purposive sampling, dengan jumlah sampel sebanyak 20 mahasiswa. Data dikumpulkan dengan mengukur aktivitas SOD plasma darah sebagai indikator kapasitas antioksidan. Pengukuran SOD dilakukan sebelum dan setelah perlakuan latihan aerobik intensitas sedang, dengan frekensi 3 kali perminggu, selama 8 minggu. Data kemudian dianalisis dengan uji-t berpasangan (α=0,05). Hasil penelitian didapatkanrata rata dan standar deviasi aktivitas SOD pretest 21,78±2,60 U/ml dan postest 32,03±1,42 U/ml, terdapat peningkatan rata-rata aktivitas SOD plasma sebesar 23,9% (p=0,023< 0,05). Simpulan penelitian ini terdapat peningkatan kapasitas antioksidan yang signifikan akibat latihan aerobik intensitas sedang
Kepercayaan diri atlet pusat pendidikan dan latihan olahraga pelajar Sumatera Barat
Authors: Akbar Amin , Oktavianus Irfan , Yudi Alex Aldha , Cahyani Firunika Intan , Kurniawan Rizal 
Published: July 2023

Masalah: Atlet yang berada dalam pusat pendidikan dan latihan olahraga pelajar (PPLP) Sumatera Barat sering dihadapkan dengan situasi yang menimbulkan tekanan maupun kecemasan, sehingga dapat mempengaruhi kepercayaan diri seorang atlet. Gangguan internal maupun eksternal yang dialami atlet tersebut dapat menyebabkan menurunnya kepercayaan diri seorang atlet yang berujung pada ketidakmampuan atlet menampilkan performa mereka dan yang akan bermuara pada prestasi atlet. Hal tersebut penting untuk diteliti karena seorang atlet yang memiliki kepercayaan diri yang tinggi mampu mengontrol pikiran negatif yang dapat menganggu performa atlet selama bertanding.
Tujuan: Penelitian ini bertujuan untuk mengetahui kepercayaan diri atlet PPLP Sumbar sehingga menjadi landasan awal untuk tindakan selanjutnya
Metode: Desain penelitian menggunakan pendekatan deskriptif kuantitatif. Instrumen yang digunakan adalah kuesioner yang telah melalui proses validitas dan reliabelitas. Sampel yang digunakan dalam penelitian ini merupakan siswa kelas XII PPLP Sumbar yang berjumlah 30 orang.
Hasil: Hasil dari penelitian menunjukkan bahwa 10 orang atlet memiliki tingkat percaya diri tinggi dengan persentase (33,33 %), 12 orang atlet yang terdiri dari atlet memiliki tingkat percaya diri sedang dengan persentase (40%), dan 8 orang lainnya memiliki tingkat percaya diri yang rendah dengan persentase (26,66%). Adapun rata-rata tingkat percaya diri atlet PPLP Sumbar masuk dalam kategori sedang dengan persentase 70,34%.
Kesimpulan: Kesimpulan peneltian ini menunjukkan bahwa tingkat kepercayaan diri atlet PPLP Sumbar dalam kategori sedang, melalui hasil penelitian ini diharapkan menjadi bahan evaluasi untuk mengetahui mental atlet khususnya masalah kepercayaan diri atlet karena akan berujung pada performa atlet.
ANALISIS KONDISI DRAINASE TERHADAP KEJADIAN BANJIR DI KECAMATAN METRO TIMUR KOTA METRO
Authors: Hasanudin Rival , Rolia Eva , Prawati Eri 
Published: July 2023

Untuk dapat mengetahui seberapa besar debit air hujan yang masuk dalam drainse dan mengatuhi berapa tampungan drainase pada Kecamatan Yosorejo Metro Timur Kota Metro, ada bebrap tahap penelitian yang harus di lakukan dengan cara : survey lokasi untuk mengetahui berapa dimensi saluran dan mencari data stasiun hujan yang ada pada Keluraha Yosorejo Kecamatan Metro Timur Kota Metro, jika sudah mendapatkan data tersebut di lakukan perhitungan yang pertamaperhitungan hidrologi yang bermaksud untuk mengtahui intesitas hujan yang ada pada Kelurahan Yosorejo Kecamatan Metro Timur Kota Metro dan perhitungan drainase yang ada pada Kelurahan Yosorejo untuk mengetahui berapa debit drainase yang ada pada lokasi dan mengetahui seberapa besar debit hujan yang akan masuk pada drainase tersebut. Setelah perhitungan hidrologi dan perhitungan drainse selesai akan di ketahu bahwa intesnitas hujan pada Kelurahan Yosorejo dari analisi perhitungan curah hujan kala hujan 10 tahun bisa di simpulkan bahwa curah hujan tertinggi kala hujan di 10 tahun dengan angka sebesar 49.682 m3 jika dengan jarak waktu perjam terdapat hujan tertinggi pada 9 jam sebesar 19.703 m3 dan dari analisis perhitungan drainase kita mengetahu debit paling besar debit pada drainase ya itu 5.739 m3 dan terkecil adalah 0.0006 di 44 ruas yang ada pada kelurahan Yosorejo Kecamatan Metro Timur Kota Metro
PROBLEMATIC ISSUES IN THE EXECUTION OF PUNISHMENT IN THE FORM OF A BAN ON HOLDING CERTAIN POSITIONS AND ENGAGING IN CERTAIN ACTIVITIES
Authors: Радченко М.Э. 
Published: July 2023

Актуальность данной темы обусловлена тем, что наказание в виде запрета занимать определенные должности и заниматься определенной деятельностью является одним из наиболее применяемых альтернативных наказаний. Однако, как показывает практика, существует ряд проблемных вопросов, возникающих в процессе исполнения данного наказания уголовно-исполнительными инспекциями. В связи с этим, объектом исследования являются нормативные правовые акты, регламентирующие порядок исполнения наказания в виде запрета занимать определенные должности и заниматься определенной деятельностью. Цель работы – обозначение проблемных аспектов, возникающих в практической деятельности уголовно-исполнительных инспекций при исполнении данного вида наказания для дальнейшего совершенствования законодательства.
The relevance of this topic is due to the fact that punishment in the form of a ban on holding certain positions and engaging in certain activities is one of the most widely used alternative punishments. However, there are a number of problematic issues that arise in the process of execution of this punishment by criminal enforcement inspections. In this regard, the object of the study is regulatory legal acts regulating the procedure for the execution of punishment in the form of a ban on holding certain positions and engaging in certain activities. The purpose of the work is to identify problematic aspects that arise in the practice of criminal enforcement inspections in the execution of this type of punishment for further improvement of legislation.
Importance of Carotenoids and Phytoestrogens in Gonad Maturity of Various Types of Fish
Authors: Iskandar  , Saputra Muhamad Erpan , Anna Zuzy 
Published: July 2023

Aims: The purpose of this article is to examine the potential for adding combinations of carotenoids and phytoestrogen in their feed to the maturity of gonads of different kinds of fish. The method of writing used is the library study, with the journal search stages, journal selection, journal analysis, and journal synthesis. Based on the review of several related journals. The presence of carotenoids and of estrogen in the reproductive process of fish is highly profitable. The carotenoid compound, which is a provitamin a, will help in the development of oocytes primarily with the accumulation of vitellogenin and maintaining fatty acids in the oocytes. Meanwhile, the presence of phytogenic that have structures like endogenous estradiol will assist in synthesizing and producing vitellogenin in the liver. So the size of oocytes would accelerate and impact the rapid ripening of the fish. After a maximum Estrogen measure, a full-flesh-based phytoestrogen will act like a hoflavon to give a MIH signal to be received by the surface of oocyte then passes to the cytoplasm to encourage maturation promoting factor (MPF) that causes germinal vesicle breakdown (GVBD) to the fish's egg. The presence of easily obtained carotenoids and phytoestrogen provided potential additives.
Conclusion: The combination of carotenoids and phytoestrogens in feed has the potential to make a considerable contribution to gonadal maturity and reproduction in fish.
Screening for Osteoporosis to Prevent Fractures
Authors: Kahwati Leila C. , Kistler Christine E. , Booth Graham , Sathe Nila , Gordon Rachel D’Amico , Okah Ebiere , Wines Roberta C. , Viswanathan Meera 
Published: January 2025

ImportanceFragility fractures result in significant morbidity.ObjectiveTo review evidence on osteoporosis screening to inform the US Preventive Services Task Force.Data SourcesPubMed, Embase, Cochrane Library, and trial registries through January 9, 2024; references, experts, and literature surveillance through July 31, 2024.Study SelectionRandomized clinical trials (RCTs) and systematic reviews of screening; pharmacotherapy studies for primary osteoporosis; predictive and diagnostic accuracy studies.Data Extraction and SynthesisTwo reviewers assessed titles/abstracts, full-text articles, study quality, and extracted data; when at least 2 similar studies were available, meta-analyses were conducted.Main Outcomes and MeasuresHip, clinical vertebral, major osteoporotic, and total fractures; mortality; harms; accuracy.ResultsThree RCTs and 3 systematic reviews reported benefits of screening in older, higher-risk women. Two RCTs used 2-stage screening: Fracture Risk Assessment Tool estimate with bone mineral density (BMD) testing if risk threshold exceeded. One RCT used BMD plus additional tests. Screening was associated with reduced hip (pooled relative risk [RR], 0.83 [95% CI, 0.73-0.93]; 3 RCTs; 42 009 participants) and major osteoporotic fracture (pooled RR, 0.94 [95% CI, 0.88-0.99]; 3 RCTs; 42 009 participants) compared with usual care. Corresponding absolute risk differences were 5 to 6 fewer fractures per 1000 participants screened. The discriminative accuracy of risk assessment instruments to predict fracture or identify osteoporosis varied by instrument and fracture type; most had an area under the curve between 0.60 and 0.80 to predict major osteoporotic fracture, hip fracture, or both. Calibration outcomes were limited. Compared with placebo, bisphosphonates (pooled RR, 0.67 [95% CI, 0.45-1.00]; 6 RCTs; 12 055 participants) and denosumab (RR, 0.60 [95% CI, 0.37-0.97] from the largest RCT [7808 participants]) were associated with reduced hip fractures. Compared with placebo, no statistically significant associations were observed for adverse events.Conclusions and RelevanceScreening in higher-risk women 65 years or older was associated with a small absolute risk reduction in hip and major fractures compared with usual care. No evidence evaluated screening with BMD alone or screening in men or younger women. Risk assessment instruments, BMD alone, or both have poor to modest discrimination for predicting fracture. Osteoporosis treatment with bisphosphonates or denosumab over several years was associated with fracture reductions and no meaningful increase in adverse events.
Screening for Osteoporosis to Prevent Fractures
Authors:   US Preventive Services Task Force, Nicholson Wanda K. , Silverstein Michael , Wong John B. , Chelmow David , Coker Tumaini Rucker , Davis Esa M. , Jaén Carlos Roberto , Krousel-Wood Marie , Lee Sei , Li Li , Mangione Carol M. , Ogedegbe Gbenga , Rao Goutham , Ruiz John M. , Stevermer James , Tsevat Joel , Underwood Sandra Millon , Wiehe Sarah 
Published: January 2025

ImportanceOsteoporotic fractures are associated with psychological distress, subsequent fractures, loss of independence, reduced ability to perform activities of daily living, and death.ObjectiveThe US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the evidence on the benefits and harms of screening for osteoporosis to prevent fractures in adults 40 years or older with no known diagnosis of osteoporosis or history of fragility fracture.PopulationAdults 40 years or older without known osteoporosis or history of fragility fractures.Evidence AssessmentThe USPSTF concludes with moderate certainty that screening for osteoporosis to prevent osteoporotic fractures in women 65 years or older has moderate net benefit. The USPSTF concludes with moderate certainty that screening for osteoporosis to prevent osteoporotic fractures in postmenopausal women younger than 65 years at increased risk has moderate net benefit. The USPSTF concludes that the evidence is insufficient and the balance of benefits and harms for screening for osteoporosis to prevent osteoporotic fractures in men cannot be determined.RecommendationThe USPSTF recommends screening for osteoporosis to prevent osteoporotic fractures in women 65 years or older. (B recommendation) The USPSTF recommends screening for osteoporosis to prevent osteoporotic fractures in postmenopausal women younger than 65 years who are at increased risk for an osteoporotic fracture as estimated by clinical risk assessment. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for osteoporosis to prevent osteoporotic fractures in men. (I statement)
Respiratory Tract Cultures
Authors: Alby Kevin , Smedberg Jason R. , Lindsay Diane S. J. , Ricci Maria L. , Yarbrough Melanie L. , Burnham Carey‐Ann D. , Leber Amy L. , Bateman Allen C. , Gonzalez Mark D. , Pence Morgan A. 
Published: January 2025

Abstract

Specimens from the upper respiratory tract (throat specimens, nasopharyngeal swabs, and nasal discharges) can be easily obtained but are contaminated with resident microbiota. Infections of the lower respiratory tract are the sixth leading cause of mortality in the United States, with 2 to 3 million cases per year, resulting in 500,000 hospitalizations. The purpose of the culture of respiratory secretions from cystic fibrosis (CF) patients is to isolate organisms associated with CF pulmonary disease so that appropriate interventions may be taken. Tympanocentesis and culture of the middle ear fluid are valuable tools for definitive diagnosis, guiding therapy, and evaluating treatment failures. In many laboratories in areas of low endemicity, culture‐based testing specifically for
Corynebacterium diphtheriae
has been discontinued due to the lack of requests and limitations in media shelf life.