bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Feasibility of a pMDI-Reduced Production of Wood Fiber Insulation Boards by Means of Kraft Lignin and Ligneous Canola Hulls
Authors: Ostendorf Kolja , Ahrens Christian , Beulshausen Arne , Tene Tayo Jean Lawrence , Euring Markus
Published: March 2021

The thermal insulation of buildings using wood fiber insulation boards (WFIBs) constitutes a positive contribution towards climate change. Thereby, the bonding of wood fibers using mainly petrochemical-based resins such as polymeric diphenylmethane diisocyanate (pMDI) is an important measure to meet required board properties. Still there is a need to reduce or partial substitute the amount of these kinds of resins in favor of a greener product. This study therefore focusses on the feasibility of reducing the amount of pMDI by 50% through the addition of 1% BioPiva 395 or Indulin as two types of softwood Kraft-Lignin and lignin rich canola hulls together with propylene carbonate as a diluent. A panel density of 160 kg/m3 and a thickness of 40 mm was aimed. The curing of these modified pMDI was investigated by using two types of techniques: hot-steam (HS) and innovative hot-air/hot-steam-process (HA/HS). The WFIBs were then tested on their physical-mechanical properties. The equilibrium moisture content (EMC) was determined at two different climates. An exemplary investigation of thermal conductivity was conducted as well. The WFIBs did undergo a further chemically based analysis towards extractives content and elemental (C, N) composition. The results show that it is feasible to produce WFIBs with lower quantities of pMDI resin and added lignin with enhanced physical-mechanical board properties, which were lacking no disadvantages towards thermal conductivity or behavior towards moisture, especially when cured via HA/HS-process.
Current Trends and Perspectives in the Application of Polymeric Materials to Wastewater Treatment
Authors: Coimbra Ricardo N. , Otero Marta
Published: March 2021

Water with the necessary quality is indispensable to the functioning of most of the known life forms, being essential to human health, social and economic development, and ecosystems functioning [...]
Fabrication and Characterization of Chitosan/Cellulose Nanocrystal/Glycerol Bio-Composite Films
Authors: Kusmono Kusmono , Wildan Muhammad Waziz , Lubis Fadhlan Ihsan
Published: March 2021

Cellulose nanocrystal (CNC)-reinforced bio-composite films containing glycerol were produced using the solution casting technique. The influences of the addition of CNC (2, 4, and 8 wt%) and glycerol (10, 20, and 30 wt%) on the properties of the bio-composite films were studied in the present work. The resulting films were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, and thermogravimetry analysis (TGA), and according to their tensile, water absorption, and light transmission behavior. The introduction of 4 wt% CNC into the chitosan film did not affect the thermal stability, but the presence of 20 wt% glycerol reduced the thermal stability. The addition of 4 wt% CNC to the chitosan film increased its tensile strength, tensile modulus, and elongation at break by 206%, 138%, and 277%, respectively. However, adding more than 8 wt% CNC resulted in a drastic reduction in the strength and ductility of the chitosan film. The highest strength and stiffness of the chitosan bio-composite film were attained with 4 wt% CNC and 20 wt% glycerol. The water absorption and light transmission of the chitosan film were reduced dramatically by the presence of both CNC and glycerol.
Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
Authors: Franco Paola , De Marco Iolanda
Published: March 2021

Ophthalmic drugs used for the treatment of various ocular diseases are commonly administered by eye drops. However, due to anatomical and physiological factors, there is a low bioavailability of the active principle. In order to increase the drug residence time on the cornea to adequate levels, therapeutic contact lenses have recently been proposed. The polymeric support that constitutes the contact lens is loaded with the drug; in this way, there is a direct and effective pharmacological action on the target organ, promoting a prolonged release of the active principle. The incorporation of ophthalmic drugs into contact lenses can be performed by different techniques; nowadays, the soaking method is mainly employed. To improve the therapeutic performance of drug-loaded contact lenses, innovative methods have recently been proposed, including the impregnation with supercritical carbon dioxide. This updated review of therapeutic contact lenses production and application provides useful information on the most effective preparation methodologies, recent achievements and future perspectives.
Metal Accumulation Profile of Catharanthus roseus (L.) G.Don and Celosia argentea L. with EDTA Co-Application
Authors: Qurban Muneeba , Mirza Cyrus Raza , Khan Aqib Hassan Ali , Khalifa Walid , Boukendakdji Mustapha , Achour Belkacem , Yousaf Sohail , Nawaz Ismat , Butt Tayyab Ashfaq , Iqbal Mazhar
Published: March 2021

The problem of metal-induced toxicity is proliferating with an increase in industrialization and urbanization. The buildup of metals results in severe environmental deterioration and harmful impacts on plant growth. In this study, we investigated the potential of two ornamental plants, Catharanthus roseus (L.) G.Don and Celosia argentea L., to tolerate and accumulate Ni, Cr, Cd, Pb, and Cu. These ornamental plants were grown in Hoagland’s nutrient solution containing metal loads (50 µM and 100 µM) alone and in combination with a synthetic chelator, ethylenediaminetetraacetic acid (EDTA) (2.5 mM). Plant growth and metal tolerance varied in both plant species for Ni, Cr, Cd, Pb, and Cu. C. roseus growth was better in treatments without EDTA, particularly in Ni, Cr, and Pb treatments, and Pb content increased in all parts of the plant. In contrast, Cd content decreased with EDTA addition. In C. argentea, the addition of EDTA resulted in improved plant biomass at both doses of Cu. In contrast, plant biomass reduced significantly in the case of Ni. In C. argentea, without EDTA, root length in Cd and Cu treatments was significantly lower than the control and other treatments. However, the addition of EDTA resulted in improved growth at both doses for Pb and Cu. Metal accumulation in C. argentea enhanced significantly with EDTA addition at both doses of Cu and Cd. Hence, it can be concluded that EDTA addition resulted in improved growth and better metal uptake than treatments without EDTA. Metal accumulation increased with EDTA addition compared to treatments without EDTA, particularly for Pb in C. roseus and Cu and Cd in C. argentea. Based on the present results, C. roseus showed a better ability to phytostabilize Cu, Cd, and Ni, while C. argentea worked better for Ni, Cd, Cu, and Pb.
A New Algorithm for Unique Representation and Isomorphism Detection of Planar Kinematic Chains with Simple and Multiple Joints
Authors: Helal Mahmoud , Hu Jong Wan , Eleashy Hasan
Published: March 2021

In this work, a new algorithm is proposed for a unique representation for simple and multiple joint planar kinematic chains (KCs) having any degree of freedom (DOF). This unique representation of KCs enhances the isomorphism detection during the structural synthesis process of KCs. First, a new concept of joint degree is generated for all joints of a given KC based on joint configuration. Then, a unified loop array (ULA) is obtained for each independent loop. Finally, a unified chain matrix (UCM) is established as a unique representation for a KC. Three examples are presented to illustrate the proposed algorithm procedures and to test its validity. The algorithm is applied to get a UCM for planar KCs having 7–10 links. As a result, a complete atlas database is introduced for 7–10-link non-isomorphic KCs with simple or/and multiple joints and their corresponding unified chain matrix.
Automated Mapping of Transportation Embankments in Fine-Resolution LiDAR DEMs
Authors: Van Nieuwenhuizen Nigel , Lindsay John B. , DeVries Ben
Published: March 2021

Fine-resolution LiDAR DEMs can represent surface features such as road and railway embankments with high fidelity. However, transportation embankments are problematic for several environmental modelling applications, and particularly hydrological modelling. Currently, there are no automated techniques for the identification and removal of embankments from LiDAR DEMs. This paper presents a novel algorithm for identifying embankments in LiDAR DEMs. The algorithm utilizes repositioned transportation network cells as seed points in a region-growing operation. The embankment region grows based on derived morphometric parameters, including road surface width, embankment width, embankment height, and absolute slope. The technique was tested on eight LiDAR DEMs representing subsections of four watersheds in southwestern Ontario, Canada, ranging in size from 16 million cells to 134 million cells. The algorithm achieved a recall greater than or equal to 90% for seven of the eight DEMs, while achieving a Pearson’s phi correlation coefficient greater than 80% for five of the eight DEMs. Therefore, the method has moderate to high accuracy for identifying embankments. The processing times associated with applying the technique to the eight study site DEMs ranged from 1.4 s to 20.3 s, which demonstrates the practicality of using the embankment mapping tool in applications with data set sizes commonly encountered in practice.
2nd Edition of Instrumenting Smart City Applications with Big Sensing and Earth Observatory Data: Tools, Methods and Techniques
Authors: Bitelli Gabriele , Mandanici Emanuele
Published: March 2021

The exponential growth in the volume of Earth observation data and the increasing quality and availability of high-resolution imagery are increasingly making more applications possible in urban environments [...]
“One Event, One City”: Promoting the Loyalty of Marathon Runners to a Host City by Improving Event Service Quality
Authors: Chen Xiaoying , Yim Brian H. , Tuo Ziqing , Zhou Liangjun , Liu Ting , Zhang James J.
Published: March 2021

China has entered into a new developmental phase where the government can promote national fitness, the sports industry, and city tourism, simultaneously. Rapidly becoming the largest single sporting events in China, marathon events help facilitate this integration. However, event organizers tend to focus on winning bids for events instead of improving event services and increasing the loyalty of runners to the host city, which could benefit the city for sustainable development. In this study, the antecedents affecting marathon runner loyalty to the city hosting the annual hallmark event (i.e., destination loyalty) were investigated by studying a sample of 392 repeat runners during a recent HengQin International Marathon (HQ-M). Conducting structural equation modeling (SEM) analyses, the proposed model, integrating event service quality (ESQ), destination image (DI), satisfaction (SAT), and destination loyalty (DLOY), was confirmed. Nine hypothesized paths were identified among these four constructs, including six direct paths and three indirect paths. Meanwhile, mediation effects and serial mediation effects of DI and SAT between ESQ and DLOY were found. Good ESQ, positive DI, and high SAT were found both separately and collectively to enhance DLOY and have important implications for the strategic marketing of sporting events and sustaining city brand image.
Increasing Capacity to Detect Clusters of Rapid HIV Transmission in Varied Populations—United States
Authors: Oster Alexandra M. , Panneer Nivedha , Lyss Sheryl B. , McClung R. Paul , Watson Meg , Saduvala Neeraja , Ocfemia M. Cheryl Bañez , Linley Laurie , Switzer William M. , Wertheim Joel O. , Campbell Ellsworth , Hernandez Angela L. , France Anne Marie
Published: March 2021

Molecular cluster detection analyzes HIV sequences to identify rapid HIV transmission and inform public health responses. We describe changes in the capability to detect molecular clusters and in geographic variation in transmission dynamics. We examined the reporting completeness of HIV-1 polymerase sequences in quarterly National HIV Surveillance System datasets from December 2015 to December 2019. Priority clusters were identified quarterly. To understand populations recently affected by rapid transmission, we described the transmission risk and race/ethnicity of people in clusters first detected in 2018–2019. During December 2015 to December 2019, national sequence completeness increased from 26% to 45%. Of the 1212 people in the 136 clusters first detected in 2018–2019, 69% were men who have sex with men (MSM) and 11% were people who inject drugs (PWID). State-by-state analysis showed substantial variation in transmission risk and racial/ethnic groups in clusters of rapid transmission. HIV sequence reporting has increased nationwide. Molecular cluster analysis identifies rapid transmission in varied populations and identifies emerging patterns of rapid transmission in specific population groups, such as PWID, who, in 2015–2016, comprised only 1% of people in such molecular clusters. These data can guide efforts to focus, tailor, and scale up prevention and care services for these populations.
How Flood Hazard Maps Improve the Understanding of Ecologically Active Floodplains
Authors: Natho Stephanie
Published: March 2021

Floodplains are threatened ecosystems and are not only ecologically meaningful but also important for humans by creating multiple benefits. Many underlying functions, like nutrient retention, carbon sequestration or water regulation, strongly depend on regular inundation. So far, these are approached on the basis of what are called ‘active floodplains’. Active floodplains, defined as statistically inundated once every 100 years, represent less than 10% of a floodplain’s original size. Still, should this remaining area be considered as one homogenous surface in terms of floodplain function, or are there any alternative approaches to quantify ecologically active floodplains? With the European Flood Hazard Maps, the extent of not only medium floods (T-medium) but also frequent floods (T-frequent) needs to be modelled by all member states of the European Union. For large German rivers, both scenarios were compared to quantify the extent, as well as selected indicators for naturalness derived from inundation. It is assumed that the more naturalness there is, the more inundation and the better the functioning. Real inundation was quantified using measured discharges from relevant gauges over the past 20 years. As a result, land uses indicating strong human impacts changed significantly from T-frequent to T-medium floodplains. Furthermore, the extent, water depth and water volume stored in the T-frequent and T-medium floodplains is significantly different. Even T-frequent floodplains experienced inundation for only half of the considered gauges during the past 20 years. This study gives evidence for considering regulation functions on the basis of ecologically active floodplains, meaning in floodplains with more frequent inundation that T-medium floodplains delineate.
Agro-Waste, a Solution for Rural Electrification? Assessing Biomethane Potential of Agro-Waste in Inhambane Province, Southern Mozambique
Authors: Mabecua Fastudo , Schwede Sebastian , Lucas Carlos , Klintenberg Patrik
Published: March 2021

In this study, we investigated the biomethane potential of cassava peels from the four most common varieties of cassava grown in Inhambane Province in Mozambique, Chinhembue, Cussi, Cizangara and Nhassumbi. Agro-wastes from coconut wood and jambolan wood processing were also analyzed to give a complete analysis of the most significant sources of agro-waste in the province. The macromolecular composition (carbohydrates, lipids and proteins) was determined and used to calculate the theoretical maximum biochemical methane potential (BMP). The results show that cassava fiber and cassava peel, which are considered to be waste, are viable resources for biomethane production. Further, the results show that cassava fiber and cassava peel have a higher biomethane potential compared with sawdust, and are therefore more suitable for biomethane production. A study to investigate the effect of toxic cyanogenic glycosides and lignin on cassava peels, using pre-treatment techniques to enhance biogas yield, should be carried out. An estimate of how much electricity can be generated based on the availability of agro-waste (cassava residues) and the amount of biomethane produced in our laboratory experiment was carried out. The amount of electricity that can be produced is enough to provide a valuable contribution to the production process in small and medium sized enterprises (SMEs) and in the cassava industry, or some other use in the rural setting.
Rastreamento de lesões intraepiteliais anais em mulheres imunocompetentes portadoras de lesão intraepitelial de alto grau e câncer de colo uterino
Authors:   , Brum Vivian de Oliveira Rodrigues
Published: March 2021

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COVID-19’lu Hastalar İçin Mezenkimal Kök Hücre Tedavisi
Authors: DELİBAŞ Özlem
Published: March 2021

Yeni koronavirüs (SARS-CoV-2) enfeksiyonunun neden olduğu COVID-19, Dünya Sağlık Örgütü (WHO) tarafından uluslararası bir halk sağlığı acil durumu olarak belirtilmiştir ve felaket derecesi küresel "pandemi" olarak tanımlanmıştır. COVID-19 tipik olarak ateş ve solunum semptomları ile ilişkilidir. Genellikle ciddi solunum sıkıntısı ve yüksek mortalite oranı taşıyan çoklu organ yetmezliği gelişir. inflamasyon, pulmoner ödem ve aşırı reaktif bir immun tepki hipoksiye, Acute respiratory distress sendromu (ARDS) ve akciğer hasarına yol açabilir. Mezenkimal kök hücreler (MKH'ler) güçlü ve geniş kapsamlı immünomodülatör aktivitelere sahiptir. Çalışmalar, MKH'nin akciğer hasarını önleme, iltihabı azaltma, immun tepkileri azaltma ve alveolar sıvı temizlenmesine yardımcı olduğunu gösterdi. Ayrıca, MKH'ler antimikrobiyal ve ağrıyı azaltan moleküller üretir. İntravenöz yoldan uygulandığında, hücreler doğrudan çoğunlukla sekestrasyon olan akciğerlere gider, bu da akciğer hastalığının tedavisi için büyük bir fayda sağlar. Bu derlemede, MKH kullanarak, hastanın COVID-19'a karşı immünolojik yanıtlarını iyileştirmek için bu yeni yaklaşımı dikkate aldık ve önerilen bu tedavinin yönlerini tartıştık. Şu anda COVID-19 hastalarının tedavisi için onaylanmış MKH temelli yaklaşımlar yoktur, fakat klinik çalışmalar devam etmektedir.
Semi-organic Rice Farming as a Transition Period to Organic Rice Farming
Authors: Heryadi D. Yadi , Rofatin Betty , Noormansyah Zulfikar
Published: March 2021

Organic rice farming aims to achieve sustainable agriculture. It considers social, economic and environmental aspects. However, in practice, farmers experience various technical and economic constraints upon converting non-organic agriculture practice to organic rice farming. The alternative method is to implement semi-organic farming as a transitional period. The purpose of this study is to review technical / production and economic aspects of non-organic, semi-organic, and organic farming. It is conducted to determine whether semi-organic farming could be utilized as a transition period to organic rice farming. The study used a survey method on 75 farmers working in non-organic, semi organic, and organic farm in Priangan Timur, West Java Province, Indonesia. Article’s result exhibited that, in terms of technical cultivation / production, the majority of semi-organic farmers had carried out the stages of organic cultivation. It generated higher productivity compared to non-organic farming. However, productivity remained below organic farming. In terms of economical aspect, income per hectare and R / C value are higher than non-organic farming. However, it is below organic farming. Semi-organic farming could be used as a transition to organic farming.
IDENTIFIKASI POLA DISTRIBUSI STRESS COLOUMB PADA GEMPABUMI 2 AGUSTUS 2019 DI TUGU HILIR, INDONESIA
Authors: Mala Umbu Harti , Mohamad Juliany Ningsih , Bernandus Bernandus , Putra Valentinus G. V.
Published: March 2021

Abstrak

Penelitian ini bertujuan untuk mengidentifikasi pola distribusi perubahan stress coulomb yang dapat digunakan untuk melihat gempabumi susulan yang terjadi dalam jarak dan dalam rentang waktu yang dekat. Penelitian ini menggunakan data gempabumi yang terjadi pada 2 agustus 2019 dengan Mw 6,9 di Tugu Hilir, Indonesia, pada koordinat 104,825 BT dan 7,267 LS dengan kedalaman 52,8 km (USGS) memiliki mekanisme fokus (Strike, dip, rake) adalah (201°, 49°, 54°). Data ini kemudian diolah dengan menggunkan software coulomb 3.3 pada matlab. Dari hasil penelitian didapatkan bahwa gempabumi ini gempabumi ini memiliki peningkatan stress coulomb (≤ 1,0 bar) berarah timurlaut-baratdaya dan merupakan daerah gempabumi susulan terjadi. Sedangkan daerah penurunan stress coulomb (≤ -1,0 bar) berarah barat-laut tenggara.

Kata kunci: gempabumi, perubahan stress coulomb, coulomb3.3, USGS, Tugu Hilir.

Abstract

This research aims to Identifed the distribution coulomb stress changed that can be used to seesthe subsequent earthquake that occurs within a short distanceand time span. This research uses earthquake data on 2 August 2019 with Mw 6.9 in Tugu Hilir, Indonesia, at 104.825°E and 7.267°S, with 52.8 km depth (USGS). The focus mechanism (strike, dip, rake) is (201°, 49°, 54°). This data prosessed by using Coulomb 3.3 software in MATLAB. The result found that this main earthquake had an increase coulomb stress changed (≤ 1.0 bar) in the northeast-southwest and was a subsequent earthquake area. Whereas the area of decrese of coulomb stress changed (≤ -1.0 bar) in the northwest-southeast.

 Keywords: earthquake, coulomb stress changed, coulomb 3.3, USGS, Tugu Hilir
Improvement of spatial resolution of medical ultrasound images by constrained least-square method
Authors: Hasegawa Hideyuki , Mozumi Michiya , Omura Masaaki , Nagaoka Ryo
Published: March 2021

Spatial resolution of medical ultrasound images is important for accurate observation of fine structures of living organs. Beamforming is a mandatory process for generation of ultrasonic images, and various adaptive methods have been developed for improvement of the performance of the ultrasonic beamformers. However, beamforming methods require access to ultrasonic echo signals received by individual transducer elements in an ultrasonic probe. In the present study, a method based on the constrained least-square method, which can be applicable to beamformed ultrasonic signals, was developed and evaluated by the phantom experiment. The axial and lateral resolutions evaluated as the widths at half maxima of an echo from a string target were improved from 0.24 mm and 0.59 mm to 0.11 mm and 0.34 mm, respectively, by the proposed method.
Policy, Regulations and Standards in Prognostics and Health Management
Authors: Goebel Kai , Rajamani Ravi
Published: March 2021

As the field of PHM matures, it needs to be aware of the regulations, policies, and standards that will both impose boundaries as well as provide guidance for operations. All three - regulations, policies, and standards - provide information on how to design or operate something, but with different degrees of enforceability. Policies include both public policies as well as organizational policies. Operators may be required to adhere to public policies(say, an environmental policy which provides guidance for the pollution prevention act (the latter is a US law)) whereas organisational often reflect policies that come out of strategic considerations within private organizations (such as maintenance policies). Regulations (such as aeronautics or nuclear energy) typically impose binding rules of engagement and are imposed by regulatory bodies that are responsible for a particular field. Standards, in contrast, are community-consensus guidelines that are meant to provide benefit to the community by describing best practices. Adoption of such guidelines is entirely voluntary but may provide benefits by not having to reinvent the wheel and for finding common ground amongst other adopters. Awareness of both guidelines and barriers will enable practitioners in adopting best practices within the legal constraints. This paper provides an overview of the current regulations, policies, and standards in the field of Prognostics and Health Management.
The concept of implementation of the state information policy and ensuring information security of Ukraine (in the conditions of the conflict with the Russian Federation)
Authors: Voitko O. , Onishchuk V.
Published: March 2021

The events analysis since the beginning of the aggravation of relations between Ukraine and Russia evidences about the inefficiency of information policy, incoordination of activity of different subjects of ensuring the information security of the state, the weak presence of Ukraine in the world information space etc. At the same time, the problems of ensuring the information security of the state and realization of effective set of counter-propaganda measures, realization of information policy, aimed at consolidating Ukrainian society and the international community for the purpose of suppression of armed aggression are identified by the higher military-political governance of Ukraine as the most priority. Various internal and external factors negatively affect at the ability of Ukraine to adequately respond to challenges and risks in the military sphere. The insufficient and unprofessional efforts of Ukraine’s state authorities in the field of counteraction to the Russian Federation’s propaganda and information-psychological operations are the most important ones. That’s why there’s necessity of development the system of opinions and determination of the plan of the higher military-political governance’s of Ukraine actions regarding the implementation of state information policy and providing of information security of Ukraine and legislative definition of a conceptual document. Besides the importance of this fact consist in that after the restoration of the territorial integrity of Ukraine the main aims of military policy will be prevention the emergence of new armed conflicts, systematic strengthen the state's defense capability and increasing the role and authority of Ukraine in the international area.
Implementasi Pembelajaran Jarak Jauh (PPJ) dalam Meningkatkan Kemandirian Belajar Siswa
Authors: Rozi Fathor , Lana Indria Firdausi
Published: March 2021

This study aims to describe the independence of Distance Learning learning in Madrasah Ibtidiyah students Nurul Iman Sindet Lami Besuk Probolinggo during the Covid-19 pandemic. This research uses a qualitative approach with case studies. The research method used is qualitative through observation, in-depth interviews, and field observations. The results showed that the application of learning using WAG (WhatsApp Group) as an online learning model in madrasah ibtidaiyah has the same steps for each teacher at Madrasah Ibtidaiyah Nurul Iman class VI by utilizing the menu on the WAG (WhatsApp Group), namely: video, voice, discussion, and demonstration. The implication of distance learning in madrasas is the best solution for all teachers in carrying out learning and is very conducive to the Covid-19 pandemic.
Simulation-based Data Augmentation for the Quality Inspection of Structural Adhesive with Deep Learning
Authors: Peres Ricardo , Guedes Magno , Miranda Fábio , Barata José
Published: March 2021

The advent of Industry 4.0 has shown the tremendous transformative potential of combining artificial intelligence, cyber-physical systems and Internet of Things concepts in industrial settings. Despite this, data availability is still a major roadblock for the successful adoption of data-driven solutions, particularly concerning deep learning approaches in manufacturing. Specifically in the quality control domain, annotated defect data can often be costly, time-consuming and inefficient to obtain, potentially compromising the viability of deep learning approaches due to data scarcity. In this context, we propose a novel method for generating annotated synthetic training data for automated quality inspections of structural adhesive applications, validated in an industrial cell for automotive parts. Our approach greatly reduces the cost of training deep learning models for this task, while simultaneously improving their performance in a scarce manufacturing data context with imbalanced training sets by 3.1% (mAP@0.50). Additional results can be seen at https://git.io/Jtc4b.
The Productivity of Vocational Schools: The Role of Efficiency, Fairness, Transparency, and Accountability of Financial Management
Authors: Mappadang Agoestina , - Khusaini
Published: March 2021

In the last decade, vocational education quality is one of the productivity measurements. To measure productivity were internal and external efficiency, the quality of graduates, financial management, and effectivity. This study aims to examine and analyzed the effect of the principles of efficiency, fairness, transparency, and accountability in financial management on vocational school productivity simultaneously or partially. The sampling technique used was a census. Data collection methods using questionnaires. Data analysis methods using logistic regression analysis. The results of this study could be concluded that teachers' perceptions of school productivity were good, but they're still needs to be an improvement in school policies in keeping schools productive and even increasing. The results both partially and simultaneous were the application of the principle of transparency and accountability proven to contribute significantly to increasing school productivity. Whereas the principle of efficiency and fairness didn’t significantly contribute to increasing the productivity of vocational schools in Business and Management in Tangerang Municipality. While simultaneously, the application of the principles of efficiency, fairness, transparency, and accountability in school financial management contributed to creating school productivity. The implication of this research was useful for improving the quality and productivity of vocational schools in Tangerang Municipality.
РОЗРАХУНОК ДОЦІЛЬНОГО ОБСЯГУ АВТОМАТИЧНОГО ЧАСТОТНОГО РОЗВАНТАЖЕННЯ І ЙОГО РОЗМІЩЕННЯ В ЕНЕРГОСИСТЕМІ З РОЗПОДІЛЕНИМИ ДЖЕРЕЛАМИ ЕЛЕКТРИЧНОЇ ЕНЕРГІЇ
Authors: Литвинчук В.А. , Каплін М.І. , Кармазін О.О.
Published: March 2021

Система автоматичного частотного розвантаження (АЧР) є одним із основних засобів, який широко застосовується в енергосистемах для стримування швидкого падіння частоти. Система АЧР здатна за мілісекунди відключити частину споживачів, а за секунди – зупинити падіння частоти в районах енергосистеми, які утворилися в результаті каскадної аварії з відключення ліній і генераторів. Для підтримки тимчасового балансу активної потужності в аварійних ситуаціях в енергосистемі повинна бути передбачена кількість навантаження на відключення.
Тому національні оператори систем передачі або мережа операторів систем передачі електроенергії встановлюють так званий загальний обсяг розвантаження. Найчастіше в стандартах та нормативних документах енергосистем цей показник розраховують для загального пікового попиту і рекомендують розмістити в енергосистемі рівномірним географічним способом. Такий спосіб розміщення загального обсягу розвантаження не враховує структуру електромережі, добової та сезонної зміни потужностей генерації і споживання, незважаючи на те, що стандарти, нормативні документи вимагають це враховувати. В роботі запропоновано математичну модель і спосіб визначення загального обсягу розвантаження системи АЧР і його розміщення в мережі енергосистеми з урахуванням розподілених (у вузлах споживачів) відновлюваних джерел енергії, ймовірних варіантів аварійного поділу енергосистеми, вимог міжнародних стандартів та нормативних документів, що регулюють функціонування систем протиаварійного захисту в галузі електроенергетики. Модель являє собою задачу цілочисельного (бінарного) лінійного програмування, що здійснює вибір оптимального за критерієм категорійності набору пристроїв АЧР, які розміщені у наперед заданих вузлах енергосистеми і спрацювання яких забезпечує баланс потужності в аварійних районах її поділу. Електричні параметри усталених режимів, а також ефективність оптимального обсягу і розподілу розвантаження в мережі визначаються і перевіряються (верифікуються) у серії апріорних та апостеріорних розрахунків на точних математичних моделях, визнаних у світовій практиці програмних продуктів електроенергетики. Отриманий таким чином розподіл обсягів розвантаження підвищує імовірність балансування якнайбільшої кількості аварійних районів енергосистеми за умови задоволення вимог щодо частотно-часової зони відповідних перехідних процесів. Бібл. 9, табл. 3, рис. 2.
ВПЛИВ ПАРАМЕТРІВ СИСТЕМИ АКУМУЛЮВАННЯ ЕЛЕКТРОЕНЕРГІЇ НА БАЛАНСУВАННЯ КОМБІНОВАНОЇ ЕНЕРГОСИСТЕМИ
Authors: Кузнєцов М.П. , Мельник О.А , Смертюк В.М.
Published: March 2021

Метою даної роботи є дослідження впливу таких параметрів системи акумулювання електроенергії, як ємність та швидкодія, на стан балансу потужностей в комбінованій енергосистемі. Особливістю комбінованої локальної системи є значні градієнти поточної потужності, обумовлені змінною природою вітрових і сонячних електростанцій. Система акумулювання енергії має максимально збалансувати генерацію та споживання електроенергії, зменшити втрати можливої надлишкової енергії чи її дефіцит. Об’єкт дослідження – гібридні електроенергетичні системи, які мають властивості локальної мережі. Елементами системи є вітрові та сонячні електростанції та засоби акумулювання енергії, здатні реагувати на швидкі зміни потужності. Методом дослідження є математичне моделювання випадкових процесів споживання та генерації енергії, яке дозволяє аналізувати поточне балансування потужностей та отримувати інтегральні характеристики стану акумулювання і повторного використання енергії. Моделювання режимів роботи сонячних і вітрових електростанцій основане на статистичних даних про погодні фактори, а балансування потужності можна розглядати як суперпозицію випадкових процесів генерації та споживання. Особливістю дослідження є одночасне врахування швидких змін потужності вітрових і сонячних електростанцій, можливостей накопичення незбалансованої енергії та реального стану зарядки акумуляторів. Аналітичне дослідження потребує точного визначення характеристик розподілу ймовірності для кількох випадкових процесів, тому використано адаптивну імітаційну модель з можливістю варіації вхідних параметрів. Застосована модель енергобалансу дозволяє імітувати процес акумулювання енергії та розрахувати поточні й кумулятивні показники. В результаті дослідження встановлено вплив ємності та швидкодії акумуляторів на енергетичну ефективність системи. Визначено області чутливості енергетичного балансу, коли швидкість зарядки акумуляторів стає меншою за швидкість поточних змін вітрової та сонячної потужності. Порівнюються різні конфігурації енергосистеми за джерелами енергії, при цьому враховуються географічні відмінності й сезонні кліматичні особливості.  Бібл. 16, табл. 3, рис. 4.
AUTOMATIC FISH GRILLER BASED ON TEMPERATURE CONTROLLER
Authors: Rochman Sagita , Mukodah Roib
Published: March 2021

The automatic fish grill is a tool that is very helpful for food vendors who are processed in a roasting manner. For now, conventional automatic grills that are already on the market have very expensive prices so that many traders still use manual fish grills which are less efficient in the process of doing them. The purpose of making this automatic fish grill design is to help human work to save more time and energy. The automatic fish roasting box is designed with heat absorbers in each layer, equipped with two racks, each measuring 50cm and also equipped with 2 250 watt heaters. From the test results using different types of carp with different weights, it shows that the automatic fish grill works well and gets a 100% percentage result with evenly cooked fish. The economical level of automatic fish grill has a good value, the whole design of automatic fish grill uses good quality materials and materials. For now, automatic roasters on the market have very expensive prices, this difference in price has made many traders not take full advantage of the technology. Because of this problem, researchers created an automatic fish grill based on a temperature controller, which is targeted at an inexpensive price, but can still be used safely and with maximum results. Thus, using a temperature controller-based automatic fish grill design can help simplify work to make it more efficient and safer.
AVALIAÇÃO POSTURAL EM APANHADORES DE AÇAÍ DO MUNICIPIO DE PONTA DE PEDRAS
Authors: Ferreira Tereza Cristina dos Reis , Sassim Paulo Vitor de Souza , Santos Gleidiane Lorrana Sales dos , Santos Antônio Gabriel Pantoja Silva , Lima Márcio Jordan Santos , Cruz Eliane Veiga da , Uchoa Carlos Henrique Gomes , Gabriel Danilo Gouveia , Pinto Denise da Silva , Boulhosa Fabiano José da Silva
Published: March 2021

Objetivo: Comparar as alterações posturais dos apanhadores de açaí residentes do município de Ponta de Pedras. Método: Foram avaliados 51 apanhadores de açaí do município de ponta de pedras, onde foi analisado com auxílio de um simetógrafo as seguintes variáveis: cabeça, ATM, ombros, coluna cervical, dorsal, lombar, quadril, joelhos e pés, no eixo frontal, sagital e horizontal. Resultado: Foram analisadas a prevalência das seguintes alterações posturais; cabeça inclinada à direita 57%, cervical desalinhada 49%, ombros elevados 31%, escoliose torácica 39%, lordose 43%, desnivelamento à direita 49% e anteversão da pelve 65%, joelhos em varo 32% e pés normais 49%. Conclusão: A quantidade de horas e o tempo de trabalho dos apanhadores de açaí levam os mesmos possuir alterações posturais.
Berger Type Deformed Sasaki Metric and Harmonicity on the Cotangent Bundle
Authors: Zagane Abderrahim
Published: March 2021

In this paper, we introduce the Berger type deformed Sasaki metric on the cotangent bundle $T^{\ast}M$ over an anti-paraKähler manifold $(M, \varphi, g)$. We establish a necessary and sufficient conditions under which a covector field is harmonic with respect to the Berger type deformed Sasaki metric. We also construct some examples of harmonic vector fields. we also study the harmonicity of a map between a Riemannian manifold and a cotangent bundle of another Riemannian manifold and vice versa.
Remarks on Scalar Curvature and Concircular Field Equation
Authors: Sharma Ramesh , Deshmukh Sharief
Published: March 2021

We show that the scalar curvature of a Riemannian manifold $M$ is constant if it satisfies (i) the concircular field equation and $M$ is compact, (ii) the special concircular field equation. Finally, we show that, if a complete connected Riemannian manifold admits a concircular non-isometric vector field leaving the scalar curvature invariant, and the conformal function is special concircular, then the scalar curvature is a constant.
The Effect of Using Smart Board on Improving Ninth Grade Female Students’ English Writing Skills In Southern Al-Mazar Directorate Education
Authors: Tarawneh Rafah
Published: March 2021

This research aimed at investigating the Effect of Using Smart Boards on Improving Ninth Grade Female Students English Writing Skills in Southern Al-Mazar Directorate of Education during the first semester 2017-2018.The researcher designed a written pre-test and a post-test to test the students’ skills in writing. The sample of the study comprised (67) female students who were selected purposefully. The 1st group of (31) students was taught by using the Smart Boards from Mu’tah basic school for girls. The 2nd section of (36) students was taught by using the conventional method from Al-Mazar basic school. The two groups were similar in their age, their previous learning, their achievement in general and achievement in English language. To answer the questions of the research, a pre and post-test were designed to examine students` skills in writing where the validity and reliability of the study instrument (pre-post test) were verified.The findings of the study indicated that there were statistically significant differences at (??0.05) after applying Smart board learning method and conventional learning method in favor of Smartboard. Based on the results of the research , several recommendations were suggested. First, there is a need to apply Smartboard learning method in the educational process in the Jordanian schools. Secondly, there is a need to train teachers in how to use Smart boards and facilitate their application in the educational process.
Problems and threats to the Caucasus forest ecosystems on the example of Castanea sativa
Authors: Beridze Berika , Dering Monika
Published: March 2021

The Caucasus ecoregion is located between the Black and the Caspian Sea and extends from southern Russia, throughout Turkey, Georgia, Armenia, Azerbaijan up to Iran. The prominent feature of the region is high biodiversity and endemism. The outstanding biological richness made the Caucasus one of the 36 global hotspots of biodiversity. The Caucasian forest is concentrated mainly in Georgia, where the most diverse forest ecosystems are found. In the Colchis forest, Tertiary relicts are present and this area formed glacial refugium for flora and fauna. However, the region and its wildlife are now under threat. Uncontrolled logging, urban and agricultural development, and climate changes bring about the great risk for many species and unique plant assemblages. The massive decline of Castanea sativa (sweet chestnut) exemplifies the problems of the alien parasite invasions and ineffective forest management and nature conservation. Biodiversity of the Caucasus is being lost at an alarming rate that calls for urgent action and intensification of investigations aiming at better understanding of the evolutionary history of the region.
Vegetation inventory, mapping, and characterization report, Saguaro National Park: Volume III, type descriptions
Authors: Galvin Jeff , Studd Sarah
Published: March 2021

The Sonoran Desert Network (SODN) conducted a vegetation mapping and characterization effort at the two districts of Saguaro National Park from 2010 to 2018. This project was completed under the National Park Service (NPS) Vegetation Mapping Inventory, which aims to complete baseline mapping and classification inventories at more than 270 NPS units. The vegetation map data were collected to provide park managers with a digital map product that meets national standards of spatial and thematic accuracy, while also placing the vegetation into a regional and national context. A total of 97 distinct vegetation communities were described: 83 exclusively at the Rincon Mountain District, 9 exclusively at the Tucson Mountain District, and 5 occurring in both districts. These communities ranged from low-elevation creosote (Larrea tridentata) shrub-lands spanning broad alluvial fans to mountaintop Douglas fir (Pseudotsuga menziesii) forests on the slopes of Rincon Peak. All 97 communities were described at the association level, each with detailed narratives including lists of species found in each association, their abundance, landscape features, and overall community structural characteristics. Only 15 of the 97 vegetation types were existing “accepted” types within the NVC. The others are newly de-scribed and specific to Saguaro National Park (and will be proposed for formal status within the NVC). This document is Volume III of three volumes comprising the Saguaro National Park Vegetation Mapping Inventory. This volume provides full type descriptions of the 97 associations identified and mapped during the project, and detailed in Volume I. Volume II provides abridged versions of these full descriptions, briefly describing the floristic and structural characteristics of the vegetation and showing representative photos of associations, their distribution, and an example of the satellite imagery for one polygon.
Características sociodemográficas, percepción sobre las habilidades de estudio y rendimiento académico en estudiantes de primer año de carreras de la Facultad Ciencias de la Salud
Authors: Sandoval Zúñiga María Soledad
Published: March 2021

El propósito del estudio fue establecer la relación entre las características sociodemográficas de estudiantes universitarios de primer año y el rendimiento académico para pesquisar a candidatos a reprobación. Mediante metodología cuantitativa, no experimental-transversal, un alcance descriptivo y correlacional y una muestra de 376 estudiantes, se demostró que existe una correlación entre los promedios de asignaturas con variables como edad, jornada laboral, tenencia y número de hijos, estudios previos y el gusto por leer y estudiar, junto con la facilidad para el estudio. Se concluye que los estudiantes con mayores responsabilidades familiares y laborales y mayor experiencia académica presentan mejores calificaciones.
PENGARUH KEPEMIMPINAN KEPALA SEKOLAH DAN KOMPETENSI GURU TERHADAP PRESTASI KERJA GURU
Authors: Rahmad Ilmi Noor
Published: March 2021

The work performance of a teacher today is an inseparable part of our world of education. Currently, being a quality teacher has become an absolute requirement. There are many factors that influence the creation of teacher performance in the school organizations. Some of them are related is principal leadership and teacher performance role. The research aim of this research is to note how the relationship between principal leadership and teacher competence partially and can be influenced teacher performance at SMP Widya Nusantara, Bekasi, West Java. This research method is through a quantitative approach with a questionnaire obtained from 30 respondents. The research result shows that there is a positive and significant relationship between principal leadership and teacher performance. This matter can be observed from t value (5,291) > t table (1,703), then Ho unaccepted and H1 accepted. There is also positive and significant relationship between teacher competence with teacher performance. This matter can be observed from t value (8,307) > t table (1,703), then Ho unaccepted and H2 accepted. From this calculation significant coefficient multiple correlation test obtainable F value = 17,482 > F table at the error level (a) 1% = 7,677. Therefore, it can be concluded that the correlation coefficient between principal leadership and teacher competence is in accordance with teacher performance is significant. It means Ho unaccepted and H3 accepted, in the sense is principal leadership (X1) and teacher competence (X2) is in accordance positively related and significant to performance teacher variable (Y) at SMP Widya Nusantara. Whereas, Correlation Coefficient Value (r) as big as 0,751 means is 75,1% of principle leadership and teacher competence are related to teacher performance at SMP Widya Nusantara, whereas the rest as big as 24,9% related to other factors that unobserved by the researcher.
Ativação do paciente com diagnóstico de doença renal crônica: uma revisão integrativa
Authors: Raimundo-Leone Denise Rocha , De Paula-Silva Arison Cristian , Silva-de Aguiar Aline
Published: March 2021

Objetivo: Estabelecer a medida de ativação de pacientes com doença renal crônica e seus fatores associados. Metodologia: Revisão integrativa de literatura realizada nas seguintes bases de dados: Pubmed, Lilacs, Scielo, Scopus, Science Direct e Insignia Health. Foram utilizados os descritores: Patient Activation, Nephrology, Kidney e Renal Insufficiency, Chronic e seus correspondentes em português e espanhol e os operadores booleanos AND e OR. Não foi utilizado filtro de data para as buscas. Nove manuscritos compuseram a amostra final desta revisão. Resultados: A média do escore de ativação variou entre 51±10 e 65,02±16 pontos, com o predomínio de pessoas com alta ativação (níveis 3 e 4). A ativação do paciente foi associada a múltiplas variáveis, entre elas a idade, condição socioeconômica, escolaridade e carga de sintomas. Conclusões: Conhecer o nível de ativação dos pacientes e os fatores associados a ele direciona a atuação do profissional de saúde para obtenção e/ou manutenção da alta ativação.