bluuebunny/crossref_metadata_2025_split huggingface dataset:
NARRATIVAS E PERCEPÇÕES SOBRE A SUSTENTABILIDADE E O BEM VIVER DE AGRICULTORES FAMILIARES NO MATO GROSSO, AMAZÔNIA, BRASIL
Authors: Gervazio Wagner , Bergamasco Sonia Maria Pessoa Pereira , Barrera-Bassols Narciso , Felito Ricardo Adriano , Yamashita Oscar Mitsuo , Roboredo Delmonte 
Published: October 2021

A preocupação com a sustentabilidade e o bem viver está presente no discurso da política de desenvolvimento territorial. No entanto, não se sabe que pesquisa tem sido feita dentro de uma perspectiva participativa para avaliar a sustentabilidade e a boa vida dos agricultores familiares em assentamentos rurais. Assim, o objetivo deste trabalho é avaliar a sustentabilidade e o bem viver do assentamento São Pedro no norte da região amazônica de Mato Grosso (MT), por meio de uma metodologia coletiva e participativa. Para isso, utilizamos técnicas de workshop como brainstorming, dinâmica da teia, gráfico radar e sistema de classificação de semáforos. A técnica de avaliação foi qualitativa, usando narrativas e percepções dos sujeitos locais; e uma quantitativa, utilizando o sistema de classificação de semáforos. Para os temas locais, sustentabilidade se refere a uma sequência, um continuum relacionado à organização, ao treinamento e ao meio ambiente. Os pilares que sustentam a sustentabilidade do assentamento vão desde a produção, passando pela organização, formação, religiosidade, até a conservação. Nesse caso, em termos de sustentabilidade, nove categorias foram avaliadas como fortes e nove como médias. Os sujeitos locais acreditam que seu assentamento é sustentável; além disso, pensam que tal processo ocorre com o tempo, vai e volta e está em movimento (dinâmico).
Not-so-typical typical atrioventricular nodal re-entrant tachycardia in an adolescent
Authors: JS Ang 
Published: October 2021

Dysrhythmias are commonly encountered in the Emergency Department (ED). Timely management and recognition of dysrhythmia in the ED is essential and crucial. Physicians working in the ED should be familiar with atypical presentation of common dysrhythmias. This case report illustrates atrioventricular nodal re-entrant tachycardia (AVNRT) with an unusually slow heart rate in an adolescent.
A 16-year-old male presented to the ED twice for palpitations. His electrocardiograms showed narrow complex tachycardia with absent P waves. Electrophysiology studies confirmed typical slow-fast AVNRT which was treated successfully with radiofrequency ablation of the slow pathway.
Diagnosing rare dysrhythmias or common dysrhythmias which manifest atypically can be challenging for non-cardiologists. Although AVNRT generally occurs with a heart rate of >130 bpm, emergency physicians should be aware that AVNRT can take place with a relatively slower rate in both the elderly and young.
Conservative management of Occult Hemothorax in trauma patients requiring assisted ventilation: An observational descriptive study
Authors: Mahmood Ismail , Ahmed Khalid , Mustafa Fuad , Ahmed Zahoor , Nabir Syed , Strandvik Gustav , El-Menyar Ayman , Peralta Ruben , Rizoli Sandro , Al-Thani Hassan 
Published: October 2021

Background: Traumatic hemothorax is a common consequence of blunt chest trauma. A hemothorax that is missed by initial chest X-ray, but diagnosed by computed tomography (CT), is known as an occult hemothorax. The present study aims at investigating the clinical outcomes of conservative management of occult hemothorax in mechanically ventilated trauma patients. Methods: A retrospective study of all adult blunt chest trauma patients with occult hemothorax requiring mechanical ventilation in a level 1 trauma center was conducted (2010- 2017). Data were obtained from the trauma registry and electronic medical records. Patients were categorized into (a) successful conservative treatment group, and (b) tube thoracostomy group. Results: During the study period, 78 blunt chest trauma patients who had occult hemothorax required mechanical ventilation. Occult hemothorax was managed conservatively in 69% of the patients, while 31% underwent tube thoracostomy. The main indication for tube thoracostomy was the progression of hemothorax on follow-up chest radiographs. Comparison between groups showed that pulmonary contusions (59% vs. 83%), bilateral hemothorax (26% vs. 58%) and chest infections (9% vs. 29%) were lower in conservatively treated group (p < 0.05). Length of stays in ICU and hospital were also lower (p < 0.05). Longer duration of mechanical ventilation and maximum PEEP were signiﬁcantly associated with tube thoracostomy. Overall mortality was 12% and was comparable between groups. Conclusion: Mechanically ventilated patients with occult hemothorax following blunt chest trauma can be managed conservatively without tube thoracostomy. Tube thoracostomy can be restricted to patients who had evidence of progression of hemothorax on follow-up or developed respiratory compromise.
‏ الاحتياجات التكنولوجية لتفعيل التعلّم الإلكتروني بناءً على نموذج تقييم احتياجات المدرسة ‏التكنولوجية ‏STNA‏ وعلاقتها بالقابليّة نحوه في مدارس الأونروا
Authors: مهدي حسن 
Published: October 2021

في ظل جائحة كورونا وإعلان حالة الطوارئ، إلتزمت المدارس بشكل عام ومدارس وكالة غوث وتشغيل اللاجئين في استخدام التكنولوجيا الرقمية ‏لتفعيل أهداف التعلم، حيث تم تفعيل التعلم الإلكتروني‏ بأشكال مختلفة وبأدوات مختلفة وقد واجه أصحاب المصلحة العديد من المشكلات التي ‏حتمت علينا كباحثين السعي للكشف عن الاحتياجات التكنولوجية اللازمة لتفعيل التعلم الإلكتروني‏ بناءً على نموذج ‏STNA‏ وعلاقتها بالقابلية نحوه ‏في مدارس الأونروا في غزة، وقد اتبع الباحث المنهج الوصفي الارتباطي، وقد تبنى الباحث مقياس ‏STNA‏ لتحديد الاحتياجات وصمم أداة ‏القابلية نحو التعلم الإلكتروني‏، حيث تم تطبيقها على (85) من المعلمين والمعلمات من مدارس منطقة شرق غزة، وأشارت النتائج إلى: مستوى توافر ‏مجال البيئة الداعمة لاستخدام التكنولوجيا (53.8%)، وبلغ مستوى الحاجة لدى المعلمين لمجال التطوير المهني( 76.2%)، كما أن مستوى تحقق ‏مجال التدريس والتعلم بلغت (63.6%)، وبلغ مستوى توافر مجال تأثير التكنولوجيا (68.3%)، وبلغ مستوى القابلية (74.6%)، كما تبين أنه لا توجد ‏فروق دالة إحصائية في التقديرات التقويمية للمعلمين للاحتياجات التكنولوجية للمدرسة لتفعيل التعلم الإلكتروني‏ والقابلية نحوه تعزى لمتغيرات (نوع ‏الجنس، سنوات الخبرة، المرحلة التدريسية، مستوى المهارة بالحاسوب والانترنت)، ويوجد علاقة طردية قوية ذات دلالة إحصائية بين التقديرات ‏التقويمية للاحتياجات التكنولوجية ومستوى القابلية لدى المعلمين نحو التعلم الإلكتروني‏. ‏
فاعلية التنسيق بين الهـلال الأحمر والمستشفيات الحكوميـة من وجهة نظر العاملين
Authors: صلاح محمد , الاشقر نظام , مسلم علاء , أبو ناموس رائد 
Published: October 2021

هدفت الدراسة إلى تقييم فاعلية التنسيق الإداري بين دائرة الإسعاف والطوارئ في جمعية الهـلال الأحمر الفلسطيني والمستشفيات الحكوميـة في مدينة غزة وشمال قطاع غزة، وأثرها على جـودة الخدمات الصحيـة المقدمة للمرضى بقطاع غزة. وقد استخدم الباحثون المنهج الوصفي والمنهج التحليلي للبيانات التي تم تجميعها من الاستبيان المحكم، وقد بلغ عدد الاستبانات الموزعة على كل مجتمع الدراسة (167)، وتم استرداد (152) استبانة بنسبة استجابة قدرها (91%)، وتم تحليل البيانات باستخدام برنامج التحليل الاحصائي SPSS"". وقد أظهرت نتائج الدراسة أن التنسيق الإداري حصل على وزن نسبي (58.83%)، كما جاء مستوى التنسيق بين المؤسسات بوزن نسبي (59.17%)، تلى ذلك طبيعـة التنسيق في المرتبـة الثانية بوزن نسبي (58.45%.) كما حصلت جـودة الخدمات الصحيـة المقدمة للمرضى في المؤسسات الصحية على وزن نسبي (69.57%)، كذلك وجود علاقة ارتباط موجبة بين فاعلية التنسيق الإداري وجـودة الخدمات الصحيـة لدى المـرضى في قطاع غزة. وكانت أهم توصيات الدراسة: إعداد خطة متكاملة للتنسيق الإداري بين وزارة الصحة وجمعية الهلال الأحمر الفلسطيني لضبط عملية التنسيق ومستوياتها، وإعداد سياسات تمويلية واضحة لدعم مخرجات الاجتماعات التنسيقية بين المستشفيات الحكوميـة وبين جمعية الهلال الأحمر.
мodern trends the use of hemp products
Authors: Кабунина И.В. 
Published: October 2021

Конопля содержит огромный потенциал в виде экологичного природного ресурса и активно становится частью нашей повседневной жизни. Законодательно разрешенные к культивированию в России сорта посевной конопли отличаются отсутствием наркотически значимых концентраций активных соединений и улучшенными биологическими характеристиками, позволяющими использовать семена, стебли и зеленую часть растения в различных сферах народного хозяйства. Конопля посевная востребована в пищевой и легкой промышленности, строительной индустрии, агропромышленном комплексе и многих других отраслях производства. Произведенные из конопли продукты экологически безопасны, легко разлагаются микроорганизмами. Благодаря огромному народно-хозяйственному значению, распространению экологических трендов, а также повышению ценности легковозобновляемых сырьевых ресурсов конопля посевная является перспективной сельскохозяйственной культурой.
Cannabis contains a huge potential in the form of an eco-friendly natural resource and is actively becoming a part of our daily life. Legally permitted for cultivation in Russia, varieties of seeded cannabis are distinguished by the absence of narcotic concentrations of active compounds and improved biological characteristics that allow the use of seeds, stems and the green part of the plant in various spheres of the national economy. Seed hemp is in demand in the food and light industry, the construction industry, the agro-industrial complex and many other industries. Products made from hemp are environmentally safe, easily decomposed by microorganisms. Due to the huge national economic significance, the spread of environmental trends, as well as the increase in the value of easily renewable raw materials, seed hemp is a promising agricultural crop.
Social Culture And Economic Development In The Batak Angkola Community In Padang Lawas Utara
Authors: Siregar Enni Sari 
Published: October 2021

Economic development is an effort to reduce poverty in order to achieve prosperity through increased income. Economic development can be influenced by economic, social and environmental factors. This study aims to identify the socio-cultural relationship with economic development through a literature study with the object of the Batak Angkola community in North Padang Lawas district. The results of the study indicate that in theory the socio-cultural environment has a relationship with economic development. The socio-cultural environment includes traditional ceremonies such as birth customs, marriage customs and death customs. In addition, poverty, human resources and capital formation are also related to the success of economic development. This local wisdom is still ongoing today because the Batak Angkola people adhere to the philosophy of Hamoraon, Hasangapon, Hagabeon
Mercury Content on Mangrove Roots and Telescopium telescopium in Kao Bay, North Halmahera
Authors: Moh. Fauzan Jafar Moh. Fauzan Jafar , Pertiwi Reni Tyas Asrining 
Published: October 2021

The process of extracting gold using mercury (Hg) carried out by Nusa Halmahera Minerals industries (PT. NHM) as well as by the community of illegal gold mining or gold mining without a permit (PETI) that occurs in the mining area of ​​Halmahera Island can have a negative impact on the aquatic environment. This study aims to determine the mercury absorption in mangrove roots of Rhizopora sp and Telescopium telescopium at two different stations. Sampling of mangrove roots was repeated 3 times for each station. Differences in the accumulation of heavy metals Hg in the roots of Rhizophora sp were analyzed using the T-test. The study showed that the concentration of mercury in the roots of Rhizophora sp ranged from 0.016 – 0.026 mg/kg and there were differences in root absorption between Rhizopora sp at station 1 of the Tabobo River mangrove near the PETI disposal and station 2 at the mining industry waste disposal. The concentration of mercury in Telescopium telescopium ranged from 0.08 - 0.15 mg/kg. It is indicates that Telescopium telescopium in Kao Teluk has been contaminated with mercury but is still below the threshold of the quality standard that has been set.
A aprendizagem na educação infantil através do lúdico
Authors: Feitosa Francenilde da Silva , Feitosa Neidiara da Silva , Feitosa Júnior Francisco Rubens 
Published: October 2021

O presente trabalho analisar a importância do lúdico na educação infantil e sua importância no processo de ensino e aprendizagem. A pesquisa retrata o lúdico e a caracterização do docente, por meio da perspectiva educacional, trazendo conceitos sobre seu papel sob a visão de diferentes autores. Para isso utilizou-se a abordagem qualitativa descritiva, por meio de uma pesquisa bibliográfica. Concluir-se que é preciso que o docente permita que através de jogos e brincadeira as crianças demonstre suas necessidades e habilidades, e aprendam os mais diversos aspectos do conhecimento, em uma atividade espontânea e imaginaria, enfatizando que jogos e brincadeiras são essenciais para o desenvolvimento da criança. Neste contexto ressalta-se que o ensino é construído pela criança e o docente que cria situações que gera confiança para que a criança construa seu próprio conhecimento. Assim, a criança aprende enquanto brinca e ocorre à descoberta de si mesmo e do outro, além de desenvolver e construir sua realidade, tanto pessoal quanto social, por meio das brincadeiras, registrando sua capacidade social com o auxílio principalmente do docente. Portanto, é preciso que na brincadeira as crianças recriam e estabilizam aquilo que sabem sobre os mais diversos aspectos do conhecimento, porque o brincar é importante e influência o seu desenvolvimento.
Mobile Phone Usage on Change of Athletes Sleep Behaviour because of COVID-19 Pandemic Lockdown in India
Authors: Vinu W. , Panbilnathan Aranga. 
Published: October 2021

Many researchers during several decades have proved that sleep is a key factor for enhancing performance in sports. Henceforth, this study is to investigate the impact of a mobile phone on changes in athletes sleep behaviour because of COVID-19 lockdown in India. For which, the survey conducted among 550 sports persons representing various Universities (300 male/250 female) across various states of India using simple random sampling technique, and Sleep Quality Assessment (PSQ: Pittsburgh Sleep Quality Index) was used to find out the level of sleep disturbance in athletes. The composed data were analysed using a percentile. The results of this study showed that the mobile phone usage during COVID-19 lockdown in India out of 550 athletes’ data was collected in which 6.4 ⸓ of athletes with a score of 4 in the scale were not distracted due to COVID-19 lock down they underwent regular sleeping schedule there was no change in their circadian rhythm, 40.4 ⸓ of athletes with a score of 6 which means there was a high level of distraction in sleep due to COVID-19 lock down and 23⸓ of the athletes suffered a very high level of sleep destruction during COVID-19 lock down. Which showed a changed sleep behaviour of sports persons.
Conclusion and Recommendations: Lack of exercise during COVID-19 lockdown changed the sleep behaviour in athletes. Which made an addiction towards mobile phone usage. This study concludes that regular exercise enhances sleep and also keeps athletes from over usage of mobile phones.
On the Inability of Wind and Solar Electric Generation to Power Modern Civilization
Authors: Manheimer Wallace 
Published: October 2021

There is a societal push to replace fossil and nuclear fuel, which currently generate ~ 85% of the world’s electric power, with wind and solar powered generation of electricity. However, there are significant physical, economic, reliability, and environmental barriers to this replacement. This paper discusses them and concludes that for the foreseeable future, we are stuck with the more conventional sources if we want civilization for the masses to survive.
Programmable Tactile Feedback Patterns for Cognitive Assistance by Flexible Electret Actuators
Authors: Jiang Tao , Qiu Wenying , Li Zhaoyang , Ye Xing , Liu Yuhan , Li Yushi , Wang Xiaohao , Zhong Junwen , Qian Xiang , Lin Liwei 
Published: October 2021

AbstractAdvanced tactile feedback systems are important tools in the field of human–machine interfaces. In this work, an airflow‐assisted corona charging process is utilized to charge films made of electret material for the construction of a sandwich‐structured flexible actuator system. With a voltage as low as 20 V, this flexible actuator can stimulate skin sensations for basic tactile feedback functions. Under a driving voltage of 200 V, the system can generate an output force of ≈55 mN, which is larger than that of the output force by cellphones under the vibration mode. Utilizing these prototype flexible electret actuators array, programmable patterns of tactile sensations can be generated on human skin according to both vibrational intensities and spatial positions. Thus, two demonstrations of human–machine interface are illustrated based on the proposed device: 1) A tactile‐assisted navigation prototype with programmable commands; and 2) a tactile‐based braille prototype constructed via a 6‐pixels actuator array to generate designated patterns for assisting human–machine communications. As such, this system prototype has potential for applications in cognitive assistance via tactile feedbacks.
Highly Selective and Sensitive Detection of Volatile Sulfur Compounds by Ionically Conductive Metal‐Organic Frameworks
Authors: Li Li , Zhang Shiqi , Lu Yang , Zhang Junyao , Zhang Xuan , Wang Ruizhi , Huang Jia 
Published: October 2021

AbstractHigh selectivity to specific analyte is essential for chemical sensors but difficult to achieve. For most chemical sensors, although the response to the target analyte can be more significant than interference analytes, they still show obvious responses to the interference analytes. Here, highly selective chemical sensors are developed with negligible responses to other interference vapors. Instead of the widely investigated electronically conductive metal–organic frameworks (EC‐MOFs), ionically conductive MOFs (IC‐MOFs) are used as the sensing materials, and the unique interaction between the ion charge carrier and the analyte is utilized to achieve high sensing selectivity. Through the modulation of the metal nodes (Cu, Co, Ni, Zn, Mg) and organic ligands (H2TCPP, H2THPP, H4BTEC), sensor arrays based on a set of IC‐MOFs are fabricated and achieve highly selective detection toward volatile sulfur compounds (VSCs). H2S and CH3SH can be selectively detected at concentrations down to 1 ppb and 1 ppm, respectively. The facile preparation and low cost endow the device with disposability. These results suggest new approaches for the development of highly selective chemical sensors.
Interface‐Mediated Twinning‐Induced Plasticity in a Fine Hexagonal Microstructure Generated by Additive Manufacturing
Authors: Barriobero‐Vila Pere , Vallejos Juan Manuel , Gussone Joachim , Haubrich Jan , Kelm Klemens , Stark Andreas , Schell Norbert , Requena Guillermo 
Published: October 2021

AbstractThe grain size is a determinant microstructural feature to enable the activation of deformation twinning in hexagonal close‐packed (hcp) metals. Although deformation twinning is one of the most effective mechanisms for improving the strength–ductility trade‐off of structural alloys, its activation is reduced with decreasing grain size. This work reports the discovery of the activation of deformation twinning in a fine‐grained hcp microstructure by introducing ductile body‐centered cubic (bcc) nano‐layer interfaces. The fast solidification and cooling conditions of laser‐based additive manufacturing are exploited to obtain a fine microstructure that, coupled with an intensified intrinsic heat treatment, permits to generate the bcc nano‐layers. In situ high‐energy synchrotron X‐ray diffraction allows tracking the activation and evolution of mechanical twinning in real‐time. The findings obtained show the potential of ductile nano‐layering for the novel design of hcp damage tolerant materials with improved life spans.
A Novel Porous Ti‐Squarate as Efficient Photocatalyst in the Overall Water Splitting Reaction under Simulated Sunlight Irradiation
Authors: Salcedo‐Abraira Pablo , Babaryk Artem A. , Montero‐Lanzuela Eva , Contreras‐Almengor Oscar R. , Cabrero‐Antonino María , Grape Erik Svensson , Willhammar Tom , Navalón Sergio , Elkäim Erik , García Hermenegildo , Horcajada Patricia 
Published: October 2021

AbstractA new porous titanium(IV) squarate metal–organic framework (MOF), denoted as IEF‐11, having a never reported titanium secondary building unit, is successfully synthesized and fully characterized. IEF‐11 not only exhibits a permanent porosity but also an outstanding chemical stability. Further, as a consequence of combining the photoactive Ti(IV) and the electroactive squarate, IEF‐11 presents relevant optoelectronic properties, applied here to the photocatalytic overall water splitting reaction. Remarkably, IEF‐11 as a photocatalyst is able to produce record H2 amounts for MOF‐based materials under simulated sunlight (up to 672 µmol gcatalyst in 22 h) without any activity loss during at least 10 d.
Highly Sensitive Strain Sensor from Topological‐Structure Modulated Dielectric Elastic Nanocomposites
Authors: Fan Youjun , Shen Zhonghui , Zhou Xinchen , Dan Zhenkang , Zhou Le , Ren Weibin , Tang Tongxiang , Bao Shanyong , Nan Cewen , Shen Yang 
Published: October 2021

AbstractFlexible strain sensors are critical to several potential intelligent applications, such as human–machine interfaces, soft robotics, human motion detection, and safety monitoring of components. Stretchable functional materials are important components of strain sensors, and they are still a major challenge for high‐performance strain sensors. Herein, a novel strategy of designing and optimizing a flexible strain sensor by developing topological structure modulated high dielectric elastic nanocomposite is demonstrated. The topological structure produces synergistic effects of space charge enhancement and local electric field modulation, and it gives rise to an ultrahigh dielectric permittivity (113.4, at 1 kHz) and excellent comprehensive electromechanical performance for the dielectric elastic nanocomposite. An interdigital capacitive strain sensor is prepared based on the topological structured elastic dielectric nanocomposite, and it possesses positive capacitance response with strain, which breaks through disadvantages of negative sensitivity and narrow linear range for conventional interdigital strain sensors. The strain sensor achieves high signal‐to‐noise ratio, high positive capacitance response sensitivity of 5.7 pF %–1, and wide linear range (strain from 0.1% to 100%). The high permittivity elastic nanocomposite is capable to fabricate integrated microsensor array, making conditions for detecting local strain of convoluted surfaces and motion states of flexible actuators.
Mechanically Interlocked Polymer Electrolyte with Built‐In Fast Molecular Shuttles for All‐Solid‐State Lithium Batteries
Authors: Seo Jiae , Lee Gwang‐Hee , Hur Joon , Sung Myeong‐Chang , Seo Ji‐Hun , Kim Dong‐Wan 
Published: October 2021

AbstractThe mobility of molecular shuttles inside a mechanically interlocked polymer (MIP) can improve the ionic conductivity and electron transport capacity of a solid polymer electrolyte (SPE) and maintain a mechanically tough structure. The polyrotaxane‐based MIP electrolyte with a necklace‐like molecular structure exhibits high ionic conductivity (σ = 5.93 × 10−3 S cm−1 at 25 °C and 1.44 × 10−2 S cm−1 at 60 °C), a high Li+ ion transference number (t+ = 0.71), and high electrochemical oxidation stability (≈4.7 V vs Li+/Li). When SPEs are used in Li‐based batteries, a high Coulombic efficiency (≥98.5%), an excellent rate capability, and fast charging (≥2C) can be achieved using a “built‐in molecular shuttle” design.