bluuebunny/crossref_metadata_2025 huggingface dataset:
Amylolytic enzymes - focus on the alpha-amylases from Archae and plants
Authors: Janeček Štefan
Published: November 2021

Amylolytic enzymes represent a group of starch hydrolases and related enzymes that are active towards the α-glycosidic bonds in starch and related poly- and oligosaccharides. The three best known amylolytic enzymes are α-amylase, β-amylase and glucoamylase that, however, differ from each other by their amino acid sequences, three-dimensional structures, reaction mechanisms and catalytic machineries. In the sequence-based classification of all glycoside hydrolases (GHs) they have therefore been classified into the three independent families: GH13 (α-amylases), GH14 (β-amylases) and GH15 (glucoamylases). Some amylolytic enzymes have been placed to the families GH31 and GH57. The family GH13 together with the families GH70 and GH77 constitutes the clan GH-H, well-known as the α-amylase family. It contains more than 6,000 sequences and covers 30 various enzyme specificities sharing the conserved sequence regions, catalytic TIM-barrel fold, retaining reaction mechanism and catalytic triad. Among the GH13 α-amylases, those produced by plants and archaebacteria exhibit common sequence similarities that distinguish them from the α-amylases of the remaining taxonomic sources. Despite the close evolutionary relatedness between the plant and archaeal α-amylases, there are also specific differences that discriminate them from each other. These specific differences could be used in an effort to reveal the sequence-structural features responsible for the high thermostability of the α-amylases from Archaea.
Influence of alternative substrates on biomass and quality of cedar seedlings
Authors: Agueiro de Carvalho Cleverson , Almeida Andrade Reginaldo , Coelho de Souza Felippe , Silva de Brito Rychaellen , Lopes Teixeira Junior Davair , Matos do Nascimento Matheus , Bezerra da Silva Sandra
Published: November 2021

The production of native species seedlings is essential for the establishment of planted forests or for the recovery of degraded areas. In the nursery stage, the quality of the substrate is crucial for plant growth and development. The objective of this work was to evaluate the influence of alternative substrates, produced from agroforestry residues and decomposed forage grasses, on the biomass input and quality of cedar (Cedrela odorata) seedlings. The experiment was carried out in a greenhouse, located in Rio Branco, Acre, in a completely randomized design, with three treatments, consisting of substrates: brachiaria organic compost (1:1); organic compost combined with crushed brazil nut husk (2:1) and commercial substrate, with ten repetitions. At 90 days after sowing, total, shoot and root dry matter and Dickson's quality index were evaluated. The organic compost from Brachiaria grass favors the accumulation of biomass, improves the quality of cedar seedlings and can replace the commercial substrate in a viable way.
Perfil de sensibilidade antimicrobiana de Escherichia coli e Salmonella isolados de água de coco “in natura” comercializadas no norte-mato-grossense
Authors: Oliveira S. M. P. , Silva B. S. , Homem R. T. , Pena R. H. R , Basseto K. V. , Vieira T. B.
Published: November 2021

A água de coco é um alimento rico em sais minerais, vitaminas, aminoácidos e glicídios. Embora a água de coco seja estéril, o mecanismo de obtenção desse produto pode favorecer à contaminação por microrganismos. Entre os agentes causadores de doenças alimentares, destacam-se as estirpes de Escherichia coli e Salmonella as quais possuem linhagens patogênicas causadoras de gastroenterites em humanos. Além disso, essas bactérias podem apresentar diferentes perfis de resistência a antimicrobianos, sendo considerado um problema de saúde coletiva. Assim, o presente estudo teve como objetivo isolar cepas de E. coli e Salmonella provenientes de 18 amostras de água de coco ‘’in natura’’ comercializada no município de Sinop – Mato Grosso e avaliar o perfil de sensibilidade desses microrganismos frente aos antimicrobianos pela técnica de disco-difusão, comparando os resultados as classificações estabelecidas pelo BrCAST e CLSI. Das 18 amostras, em uma foi isolada E. coli e em outra Salmonella. Foi observado que todas as cepas (5/5) de E. coli foram resistentes a Cefalotina, Norfloxacina e Ciprofloxacina. Dessas cepas, duas ainda apresentaram resistência a Amoxicilina + Ácido Clavulânico e uma para Ampicilina, sendo caracterizadas como multirresistentes a antimicrobianos. Em relação a Salmonella foi isolada uma cepa multirresistente a Ampicilina, Cefalotina e Amoxicilina + Ácido Clavulânico. A presença desses microrganismos em alimentos representa um agravo a saúde pública devido à grande possibilidade de propagação de cepas resistentes, conferindo uma maior dificuldade no tratamento clínico das doenças causadas essas bactérias. Os protocolos BrCAST e CLSI mostraram-se semelhantes, havendo diferença quanto ao comportamento de três cepas de E. coli frente a Ampicilina e a Amoxicilina + Ácido Clavulânico. Uma cepa foi classificada pelo BrCAST como sensível e pelo CLSI com sensibilidade intermediária frente a Ampicilina. As outras duas foram classificadas pelo BrCAST como resistente e pelo CLSI com sensibilidade intermediária em relação a Amoxicilina + Ácido Clavulânico. Esses resultados demonstram que é necessária a continuidade da construção de um padrão brasileiro para que os tratamentos com antimicrobianos seja mais eficaz. Diante do exposto, destaca-se a necessidade de expandir o controle quanto a boas práticas de higiene e manipulação da água de coco a fim de reduzir o risco de saúde do consumidor e diminuir a disseminação de estirpes resistentes
INTERBAND MULTIPHOTON ABSORPTION OF LIGHT IN THE KANE MODEL
Authors: Voxob Rustamovich Rasulov  , Rustam Yavkachovich Rasulov  , Iqboljon Mamirjonovich Eshboltaev  , Mavzurjon Xursandboyevich Qo’chqorov
Published: November 2021

The spectral dependences of the coefficients of interband three-photon optical transitions for InSb and for some optical transitions are calculated and a numerical analysis of the coefficient of interband three-photon absorption of light is carried out, which taken into account the contribution to the three-photon absorption of optical transitions occurring during the simultaneous absorption of two photons in the Kane model.
Interband three-photon optical transitions in crystals of the InSb and type are classified, and the spectral dependence of some optical transitions is analyzed. The coefficient of linear-circular dichroism of interband three-photon absorption in a crystal in the Kane model is calculated.
KEY WORDS: interband three-photon optical transitions, spectral dependence, crystal.
SHAPING LEADERSHIP COMPETENCES IN SELECTED NATO STATES
Authors: ZIELICHOWSKI Artur , KALICIAK Grzegorz
Published: November 2021

Celem artykułu jest prezentacja rozwiązań do kształtowania kompetencji przywódczych wśród kandydatów na oficerów stosowanych w poszczególnych armiach NATO. Wszystkie uczelnie wojskowe w państwach NATO realizują bardzo zbliżone procedury w zakresie szkolenia bojowego przyszłych oficerów, jednakże stosują różne podejścia w celu kształtowania ich jako przywódców. Kompetencje przywódcze dowódców zawsze odgrywały ważną rolę w zapewnieniu przetrwania armiom i państwom. Wydarzenia w dziejach Polski, jak również innych państw, świadczące o randze kompetencji przywódczych jako determinancie zwycięstwa, są niezmiernie liczne. Dlatego też siły zbrojne podejmują różnego rodzaju działania w celu ich nauczania i doskonalenia wśród swoich kadr dowódczych.
THE SYRIAN IMPASS AND ITS INFLUENCE ON SECURITY IN THE REGION – THE PROBLEMS OF REFUGEES IN THE EUROPEAN UNION
Authors: MOUSSA Suhel , PACER Małgorzata
Published: November 2021

Migracja i uchodźstwo nie są nowymi zjawiskami we współczesnym świecie. Jednak ich skala, a także dynamika wzrosły na przestrzeni ostatnich lat. Kryzys migracyjny przybrał na sile w roku 2015 i stał się przedmiotem większego zainteresowania badaczy z różnych dyscyplin naukowych. Od tego czasu media nieustannie informują o fali „uchodźców” przybywających do brzegów Europy, a w szczególności do Włoch czy przedostających się z Turcji do Grecji i zmierzających w głąb Europy. Ukazują przymusową wędrówkę ludności w poszukiwaniu schronienia przed wojnami czy prześladowaniami na różnym tle. Do tego dochodzą nieporozumienia związane z przyjęciem uchodźców na teren krajów Unii Europejskiej oraz konflikty w krajach sąsiednich wywołane napływem ludności syryjskiej. Celem artykułu jest ocena wpływu sytuacji w Syrii na bezpieczeństwo regionu Bliskiego Wschodu i Europy. W artykule została zastosowana metoda analiza danych zastanych (desk research). Analizie poddane zostały publikacje ekspertów oraz strony internetowe, zarówno w języku arabskim, jak i polskim.
Preliminary Experience of Video Conferences in Pediatrics in Covid-19 Pandemic
Authors: Bittmann Stefan
Published: November 2021

A video conference enables real-time exchange between two or more participants at different locations via audio and video communication. In terms of the visualization of the discussion partners, a videoconference thus differs from a classic telephone conference and expands it to include the visual component. The term videoconferencing system refers to the technological setup or infrastructure behind such a videoconference, the videoconferencing technology. This refers to the hardware and software components that are required to carry out a videoconference technically.
Homologous Use of Umbilical Cord Tissue for Knee Pain
Authors: Timmons Ruben Berrocal
Published: November 2021

Context: Injection with homologously-used umbilical cord tissue allograft has not been adequately studied in patients suffering from knee pain.

Objectives: The goal of this study is to determine if knee pain subjects who received cryopreserved umbilical cord tissue (UCT) injected into knee joints experience less knee pain, better function, decreased physical limitations, and reduction of medications (e.g., opiates, NSAIDs, and acetaminophen) over a 6-month period.

Methods: Prior to initiation of this study, Institutional Review Board (IRB) approval was obtained. Visual Analog Scale (VAS), Western Ontario and McMaster Universities Osteoarthritic Index (WOMAC), and medication usage data were recorded for thirty (30) consenting knee pain subjects receiving UCT at a single site in the United States. Subject profile information was also gathered and utilized to gain further insight into any effects of age, gender, and BMI on pain improvement over time.

Results: Mean resting VAS scores improved from 1.95 to 0.83 over 6 months (p<0.001), while mean VAS scores with activity improved from 6.28 to 2.87 (p<0.001) for the same period. There was no strong evidence of correlation found between gender and VAS scores (resting or with activity). However, there were statistically significant correlations found for both BMI vs. Pre-injection VAS with activity scores (r=0.402, p=.028) and Age vs. Pre-injection VAS with activity scores (r=0.434, p=.017).

Mean WOMAC daily activity function scores improved from 44.7 to 18.5 over the same 6 months (p<.001).

Overall, of the patients who used medications at the beginning of the study (18), 77.8% of them reduced or eliminated medication use.

Conclusion: Analysis demonstrates that injection with UCT decreases pain, improves physical function, and allows for less medication use for at least 6 months.
Internet Addiction in Mexican Medical Students and Family Functioning
Authors: Riquelme-Heras Hector
Published: November 2021

Introduction: Internet addiction is a deterioration in the control of the Internet, manifested in various cognitive, behavioral, and physiological symptoms. Internet addiction affects family functioning by generating problems in relationships with family members. The disturbed functioning of the family also makes individuals vulnerable to internet addiction.

Objective: To determine the relationship between family functioning and internet addiction.

Methods: A descriptive, cross-sectional, survey-type observational study was carried out on 358 students of the Faculty of Medicine of the Universidad Autonoma de Nuevo Leon, Mexico. to measure the presence of internet addiction.

Result: A prevalence of 28% for internet addiction was found in medical students.

Conclusions: This research found that following Olson's model, family functioning is not significantly related to internet addiction. The overall prevalence of internet addiction was higher than that found in other countries. Since the family plays an essential role in preventing internet addiction, it should be considered to reduce excessive Internet use.
Primary Salivary Rhabdomyosarcoma in Childhood: A Rare Presentation
Authors: Mbarki Imane
Published: November 2021

Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in childhood. It is originated from embryonic mesenchyma and can arise anywhere in the body. Head and neck location accounts for 35% of all RMC locations. The parotid gland is very rarely affected. Because of this infrequent occurrence and the multiplicity of therapeutic means of management, we report a case a 5-year-old child which was diagnosed as parotid RMS.
The Cardiovascular Events in Metabolic Surgery Compared to the New Classes of Glucose-Lowering Agents in Patients with T2DM
Authors: Shamsi Najla
Published: November 2021

Type 2 Diabetes Mellitus is a prevalent chronic disease with several macrovascular and microvascular complications. Cardiovascular diseases including coronary artery disease and stroke are common macrovascular complication that reduces the quality of life and lead to early mortality. Additionally, they pose enormous socioeconomic burden on the societies and the governments. Therefore, any intervention that reduces the cardiovascular events in patients with diabetes will have positive impact of the patients and the society. Thus, this systematic review aimed to evaluate the cardiovascular events after metabolic surgery in comparison with the new classes of glucose lowering agents in patients with type 2 diabetes mellitus.

The review included 11 randomized controlled trials to both GLP-1 RA and SGLT-2 i groups. It also included 7 metabolic surgery studies, 2 of these are randomized controlled trials and the other 5 are observational studies. These studies were the most relevant studies to the research question. The results revealed different baseline demographic and clinical characteristics between the medication trials and metabolic surgery studies. Moreover, it revealed significant reduction in cardiovascular events in metabolic surgery studies when compared to medication trials. It also showed significant HbA1c and weight reduction in the metabolic surgery group. The remission of diabetes was very high in the metabolic surgery group while none of medication trials accomplished diabetes recovery. However, both medication and surgery groups had adverse events.

In conclusion, the review is consistent with previous literature. It suggests that metabolic surgery is more effective than medical therapy in reducing cardiovascular events. Although this conclusion should be interpreted with caution due to the differences in baseline characteristics between studies. In general, the review recommends younger adult diabetic patients with obesity and history of established cardiovascular diseases to undergo metabolic surgery. Whereas, older patients with history of cardiovascular disease should be advised to take one of the medications that has been proved to reduce cardiovascular events. Future studies that compare metabolic surgery and the new classes of the glucose lowering agents is recommended to confirm the findings in this review.
The Impact of COVID-19 on Implant Dentistry: 13-36 months Follow-up-A case series
Authors: Bollen Curd
Published: November 2021

The actual pandemic caused by the highly virulent SARS-CoV-2 virus has an enormous impact on daily dental services and therefore changed the future approach towards dentistry. The corona virus became a game changer in the environmental, clinical, psychological and economical field [1]. Several new recommendations were introduced to create a safer workplace for both, patients and clinicians.
Why Oral Medicine is an exemplary choice for specialty? A Comprehensive Review
Authors: Sahni Shibani
Published: November 2021

The purpose of this article was to describe a narrative review of the literature for understanding the reasons behind Oral Medicine gaining popularity as a choice for post graduate specialty training. Oral Medicine is the intersection of medicine and dentistry, and the clinicians are responsible for the management of oral mucosal disease, salivary gland dysfunction and oral manifestation of systemic disease, and facial pain in the definition of oral medicine and hence having a wide range of responsibilities. Breadth of knowledge on medically complex patients for example, rheumatologic, cardiovascular, cancer, endocrine, immuno-deficiency patients is required, which makes it an extremely interesting specialty and enables the clinicians to provide interdisciplinary care to the patients. It is important for dental education to foster new techniques in learning and preparing the students for clinical skills prior to patient care. The scope of impact of Oral Medicine has increased over the years, leading to it gaining popularity amongst dentists to take it up as a specialty training. The future direction of the study will be to understand how to enhance the research, clinical practice, and education for Oral Medicine.
Advancing Dental Education by Integrating Teledentistry Teaching and Learning into the Predoc Curriculum
Authors: Sahni Shibani
Published: November 2021

In the advancing and changing landscape of dental education, dental curricula should be forward-thinking about the future roles of dental professionals. The need to train future dental providers to be able to facilitate care to underserved areas, and to patients who can’t come in person to a dental office, is becoming significant. Advancing dental education in 21st century with tele-dentistry should be a part of the dental curriculum, as it has been used for over a decade at this point. During the Covid-19 pandemic, tele-dentistry has become a vital method of engagement with patients and has the potential to expand across the country for those who are unable to be seen in person for any number of reasons. The main aim of this effort is to foster development and advancement in tele-dentistry and to help the integration of tele-dental education in teaching and learning. The importance of working on developing ways to teach dentistry to predoctoral students cannot be overlooked, and hence, we have been looking at best practices for integrating tele-dentistry into the dental curriculum.Dental Education should incorporate tele-dental education into predoctoral education, as it facilitates care for underserved populations as well as any other patients who are not able to be seen in person.
Komunikasi Musikal dalam Konser “Musik Untuk Republik”
Authors: Hidayatullah Riyan
Published: November 2021

Konser merupakan istilah untuk pertunjukan musik yang disajikan di depan penggemarnya. Selain berfungsi sebagai sarana interaksi antara musisi dan penikmat musik, konser juga dapat menjadi alat politik tertentu. Penelitian ini menggunakan pendekatan teori komunikasi musikal dan politik. Tujuannya untuk mengidentifikasi makna dibalik pesan-pesan politik dan musikal pada penyelenggaraan konser Musik untuk Republik (MUR) yang diadakan 18-20 oktober 2019 yang lalu. Fitur-fitur dalam aplikasi NVIVO12 digunakan untuk mengidentifikasi kata kunci yang banyak dibicarakan, sentimen, hubungan dan makna dibalik respon masyarakat terhadap MUR, dan mempertajam temuan dan konsep. Sebanyak 14 situs berjenis halaman web dan kanal YouTube diakses untuk mengumpulkan informasi tentang konser MUR dan tanggapan-tanggapannya. Hasil analisis menunjukkan bahwa terdapat komunikasi politik yang ingin disampaikan oleh musisi kepada pemerintah. Pertemuan antara musisi dengan Presiden Jokowi dianalisa sebagai upaya membangun akses ke pemerintahan, membangun kedekatan (proximity), dan kaderisasi musisi di parlemen. Pesan-pesan persatuan juga disampaikan oleh Presiden kepada masyarakat melalui konser MUR. Konser musik MUR juga digunakan sebagai medium untuk memberikan informasi publik.
Analysis of Energy and Exergy of a Two-Circuit Solar Installation with Thermosiphon Circulation
Authors: Kunelbayev M. , Omarov R. , Kurt E. , Omar D.
Published: November 2021

In this paper, a new system is proposed to improve the thermodynamic and economic indicators of solar room heating. The heat pump is integrated with a conventional solar heating system, in which the temperature of the collected heat is reduced by 20 °C to 30 °C to increase the efficiency of solar energy collection. The low-temperature heat collected by the solar collector is increased using a heat pump to generate high-temperature heat for indoor heating in winter and low-pressure process steam for industrial use in other seasons. The results show that the efficiency of the solar collector has increased by 30.50%, its annual effective operating time has reached 2000 hours, which is about four times more than that of a conventional solar heating system. In addition, the parameters of the solar collector area, the volume of the storage tank and the power of the heat pump have been optimized. This work provides a new way to use solar energy more efficiently and economically. Energy analysis shows that with the new flat solar collectors, the average annual values were 2.5 kW, and also high, the COP system in November was 4%.
THE USE OF SPECIALIZED KNOWLEDGE BY OPERATIVES IN THE PROCESS OF MURDERS DETECTION AND INVESTIGATION ON THE TERRITORY OF CORRECTIONAL INSTITUTIONS
Authors: Кияйкин Дмитрий Викторович
Published: November 2021

В статье рассмотрены особенности использования специальных знаний в процессе раскрытия и расследования убийств, совершенных в исправительном учреждении. Обращено внимание на то, что особенностью расследования убийств выступает необходимость привлечения, помимо криминалиста, еще и специалиста в сфере судебной медицины, который констатирует смерть, окажет помощь в осмотре трупа, в обнаружении и фиксации вещественных доказательств биологического происхождения, проведет дополнительные консультации. Автором определено, что собранная специалистом информация, в первую очередь, должна быть проанализирована оперативными работниками для отработки версий произошедшего, установления круга причастных лиц, что и требует их непосредственного участия в осмотре. Аналитическая деятельность не сводится только к изучению предоставленных специалистами сведений, они должны быть согласованы и обобщены с иными имеющимися данными, например, со свидетельскими показаниями. В результате исследования определены меры по эффективному использованию специальных знаний в расследовании преступлений. Кроме того, предложена дополнительная криминалистическая подготовка оперативных работников и следователей для эффективного оперативного сопровождения раскрытия и расследования преступлений, совершаемых на территории исправительных учреждений.

The article discusses the features of the use of specialized knowledge in the process of detection and investigation murders committed in a correctional institution. Attention is drawn to the fact that a feature of the investigation of murders is the need to attract, in addition to the necessary criminologist, also a specialist in the field of forensic medicine, who implements such tasks as: direct ascertaining of death, assistance in examining the corpse, including the detection and fixation of material evidence of biological origins and additional consultations. The authors determined that the information collected by a specialist, first of all, should be analyzed by operatives for its use, working out versions of what happened, establishing the circle of persons involved, which just requires their direct participation in the examination, and not as only fixing the work of specialists. Analytical activity is not limited only to the study of the information provided by specialists, they must be coordinated and summarized with other available data, such as testimony. As a result of the study, measures were identified for the effective use of specialized knowledge in the investigation of crimes. Besides, additional criminological training of the operatives and investigators for effective support in detection and investigation of crimes committed on the territory of the correctional establishments is offered.
THE SPECIFIC OF HIERARCHICAL COLLISIONS RESOLUTION IN RUSSIAN LAW
Authors: Макарова Наталья Алексеевна
Published: November 2021

Статья посвящена рассмотрению особенностей и формулированию практических рекомендаций по разрешению иерархических юридических коллизий в российском праве. Автор статьи предлагает трактовать иерархическую (субординационную) юридическую коллизию расширительно: не только как противоречие между двумя или более нормативно-правовыми актами, но и как возможное противоречие между правовыми актами разных типов, включая правоприменительные (индивидуальные) и интерпретационные акты. Подчеркивается, что базовым правилом разрешения любой иерархической юридической коллизии должно быть правило юридической силы. В то же время в настоящий момент в российском праве нормы, определяющие данное понятие, а равно устанавливающие четкие механизмы преодоления юридических коллизий, включая иерархические, отсутствуют. Под юридической силой предлагается понимать особое свойство правовых актов, благодаря наличию которого данные акты формируют иерархию, и нижестоящие акты вышестоящим противоречить не могут. Выдвигается тезис о том, что не типичные иерархические коллизии в праве (коллизии между нормативно-правовым актом, с одной стороны, и правоприменительным или интерпретационным актом, с другой, а равно несколькими правоприменительными и (или) интерпретационными актами между собой) как разновидность иерархической юридической коллизии должны разрешаться с обязательным использованием правила юридической силы. То есть акты нормативного толкования и правоприменения должны быть приравнены по юридической силе к интерпретируемым и применяемым актам. Именно такой путь позволит избежать остановок в работе механизма реализации права, которых, как известно, современное правовое государство позволить себе не может.

The article is devoted to the consideration of the features and the development of practical recommendations for resolving hierarchical legal collisions in Russian law. The author of the article proposes to interpret the hierarchical legal collision broadly, not only as a contradiction between regulatory legal acts, but also as a possible contradiction between legal acts of different types. It is emphasized that the basic rule for resolving any hierarchical legal collision should be the rule of legal force. However, at the moment in Russian law there are no norms defining this concept, as well as establishing clear mechanisms for overcoming legal conflicts, including hierarchical ones. It is proposed to understand legal force as a special property of legal acts, due to the presence of which these acts form a hierarchy, and lower-level acts cannot contradict higher-level ones. The thesis is put forward that non-typical hierarchical collisions in law should also be resolved with the obligatory use of the rule of legal force. This means that the acts of normative interpretation and law enforcement should be equated in legal force with the interpreted and applied acts. This is the way to avoid stoppages in the work of the mechanism for the implementation of the law, which, as you know, the modern constitutional state cannot afford.
Roboter unterstützen Logistikprozesse
Authors: Balser Andrea
Published: November 2021

Ein Seecontainer beinhaltet – je nach Größe – zwischen 20 und 30 Tonnen Ladung. Sie zu entladen ist, vor allem bei losem Inhalt, ist ein logistischer, zeitlicher und physischer Kraftakt. Hier können intelligente Robotersysteme unterstützen und die Prozesse der Logistikunternehmen optimieren. SEW-Eurodrive liefert dafür die passende Antriebs- und Automatisierungstechnik und trägt zum weltweiten Service bei.
Thermal Behavior Assessment of Natural Stone Buildings in the Semi-Arid Climate
Authors: Djedouani Racha , Gherzouli Lazhar , Elçi Hakan
Published: November 2021

This paper aims to assess the effects of harsh climatic conditions’ interactions with natural stone on thermal inertia properties and the thermal performance of ancient residential buildings. As the type of stone differs, its thermo-physical components differ; therefore, its interactions with environmental factors vary. For this purpose, an experimental measurement was conducted on many buildings with different orientations in a semi-arid climate and validated by a simulation performed by the “EnergyPlus 9.3” software. Results showed that the important outdoor temperature gap between day and night influences the natural stone thermos-physical properties used in construction. The stone components affected by the thermal shock effect weathering are eroded over time, then saturated with water, and affect the thermal conductivity coefficient of stone; however, this directly changes the indoor thermal comfort and performance of buildings. Additionally, the high indoor relative humidity percentage and the absence of natural ventilation have an important influence on the ambient temperature values recorded. This paper discusses the experimental measurement results compared to the simulation results.

KEYWORDS
Thermal performance, building envelope, thermal inertia, limestone, Tébessa, Algeria
Asymmetric Encryption Method Proposed for Arabic Letters Using Artificial Neural Networks
Authors: Kafarnawi Mohammad
Published: November 2021

Asymmetric encryption algorithms suffer the problem of high execution time. This paper presents a proposed methodology to perform encryption and decryption of messages written in Arabic, using artificial intelligence represented by artificial neural networks based on the RSA algorithm. The method is based on dividing the message into partial messages. The arrays of weights and biases in the neural network layers are considered the encryption or decryption key, according to their function. All steps of the proposed method and how it works were shown and used in the MATLAB environment to design a system for encrypting and decrypting messages written in Arabic. The results proved the effectiveness of the proposed methodology and its superiority over the RSA algorithm in terms of execution time for both encryption and decryption. The encryption time in the proposed algorithm is close to the time of decryption, unlike what it was in the RSA algorithm, where the encryption time was relatively much greater than the decryption time. The proposed method was tested on four text files of 50KB, 100KB, 150KB, and 200KB, over two hundred iterations. The average improvement in execution time was 1,330ms and 4,497.5ms for encoding and decoding, respectively.

KEYWORDS
Data protection, decryption, execution time, security, RSA algorithm, performance
A Novel Design of Continuous Culture for In Vitro Formation of Gallstones by Salmonella Typhi
Authors: Al-Sanjary Sahira , Al-Rawi Amera
Published: November 2021

The current research focused on detecting the role of Salmonella typhi (S. typhi) in the formation of gallbladder stones in the laboratory following isolation and diagnosis of S. typhi from bile samples of patients suffering from gallstone. Locally and for the first time, a novel continuous culture was designed, and Brilliant Green Bile Broth (BGBB) was used by adding 60% cholesterol and 20% Calcium Carbonate (CaCO3) to form the gallstone nucleation. The continuous culture was inoculated with 1% S. typhi then incubated in optimal conditions for 20 days. After 14 days of incubation, results revealed the formation of spherical aggregations with various sizes in the test flask compared to the control flask. Moreover, an increase in the size of the stone formed was observed after 20 days of incubation. The morphology of cholesterol and Calcium Carbonate crystals were studied using light, fluorescent and scanning electron microscopes, and the functional groups were diagnosed using the Fourier transform infrared spectrometry (FTIR) technique.

KEYWORDS
Biliary microbiota, model Bile, polysaccharide production
Der Freiraum des Unbestimmten: Digitalisierung in utopisch-dystopischen Texten der deutschen Gegenwartsliteratur
Authors: MÜLLER Katharina Maria
Published: November 2021

Utopisch-dystopische Romane der deutschen Gegenwartsliteratur widmen sich vermehrt dem The-ma Digitalisierung und damit verbundenen Themenkomplexe, Fragestellungen, Hoffnungen und Befürchtungen. Besondere Relevanz kommt dabei der Bewertung und Kategorisierung von Indivi-duen auf Basis von Datenanalysen zu, welche das Leben der Figuren bis ins kleinste Detail lenken und prägen. Die vorliegende Arbeit widmet sich zunächst der Frage, wie die Texte soziale Kategori-sierungs- und Bewertungsmechanismen innerhalb digitalisierter Gesellschaften darstellen und in-wiefern sich hier grundlegende kritische Kommentierungen herauslesen lassen. Zudem soll analy-siert werden, inwiefern die Texte diese sozialen Positionierungen auch räumlich realisieren, ausge-hend von der These, dass die Texte raumsemantische Strukturen nutzen, um Gefahrenpotenziale für die Freiheit und Entfaltungsmöglichkeiten des Einzelnen herauszustellen. Als theoretische Basis fungieren dabei Michel Foucaults Theorie der Gouvernementalität, sowie die von Gilles Deleuze und Felix Guattari entwickelte Theorie des glatten und gekerbten Raumes. Literarische Beispiele sind den Romanen Qualityland (2017) von Marc-Uwe Kling, Die Hochhausspringerin (2018) von Julia von Lucadou und Technophoria (2020) von Niklas Maak entnommen.
El Deporte Inclusivo como Alternativa de Vida para los Jóvenes con Discapacidad
Authors: Garavito-Campillo Erica Tatiana , Fernando-Kerguelen Jesús
Published: November 2021

A diario encontramos que cada persona tiene unas barreras, pero no límites. La discapacidad se hace evidente cuando se ponen barreras y estas a su vez restringen la participación de las personas en todos los contextos, cuando esta se presenta en los jóvenes esta pasa a un segundo plano debido a que estos son más fuertes, hacen de ella una aliada. En la presente investigación se reflexionó sobre las limitaciones físicas que han tenido algunos jóvenes. El estudio evidencio los procesos inclusivos que actualmente se están dando en el ámbito del deporte adaptado, resaltando las diferentes historias de vida de jóvenes con discapacidad. Se realizó una búsqueda de documentos y trabajos que giran en torno al término de la inclusión, lo cual, genero una investigación cualitativa que tuvo como objetivo analizar cómo el deporte inclusivo fortalece las historias de vida de jóvenes con discapacidad en el departamento de Córdoba. La población estuvo representada por 14 jóvenes con discapacidad intelectual, auditiva y física, se eligió una muestra de 7 jóvenes que practican deporte adaptado. Luego, se realizó la observación directa y entrevista semiestructurada para la elaboración de los relatos de historias de vida. Por último, el análisis nos llegó a comprender que la práctica del deporte adaptado contribuye a mejorar la calidad de vida dándole sentido a lo que hacen, fortaleciéndose cada vez más como persona.
Potenciar la Competencia Argumentativa en Ciencias Naturales Mediante una Estrategia Pedagógica
Authors: González-Lancheros Luz Mily , Soto-Tovar Alirio , Londoño-Terwes William Enrique
Published: November 2021

Las competencias argumentativas forman parte de las competencias consideradas como relevantes en educación. Dentro de las ocho competencias básicas propuestas por la Comisión Europea se contempla la de aprender a aprender, es decir, que los estudiantes sean conscientes de cómo se aprende y de cómo aprender. El objetivo principal de esta investigación fue evidenciar la competencia argumentativa de estudiantes de grado séptimo en el área de ciencias naturales, mediante una estrategia pedagógica diseñada como herramienta en Moodle en una institución de Bogotá (Colombia). El enfoque que se utilizó es mixto (cuantitativo-cualitativo). La muestra de estudio es intencional, con 25 participantes, entre los 12 y 13 años de ambos géneros, masculino y femenino con estrato socioeconómico heterogéneo 2 y 3. El instrumento que se utilizó fue una encuesta como herramienta de recolección de datos, donde se permitió reconocer algunas competencias en los estudiantes en relación con las habilidades, conocimientos y actitudes hacia el área de ciencias naturales. La investigación permitió concluir que los estudiantes reconocieron la importancia de trabajar con las Tecnologías de la Información y la Comunicación (TIC), pues les permite ser más autónomos en su quehacer en la escuela, manteniéndolos más activos en el proceso de argumentación en ciencias naturales, identificando el apoyarse en tecnología para potenciar aquellas competencias en las cuales tienen algún grado de dificultad para ellos.
A RESEARCH ON VOCATIONAL EDUCATION AND YACHT BUILDING SECTOR IN BODRUM
Authors: ÇOLAK Mehmet , ÇETİN Tahsin , ÜNALDI Serdar
Published: November 2021

Yacht and boat manufacturing industry is a sector that has a great added value, can provide employment and has a high export rate. This industry machinery, iron-steel, wood, paint, chemistry, electricity-electronics, textile, decoration, rubber-plastic etc. It is an industry branch that produces as a result of combining the products of many industrial branches in shipyards and receives service from various service sectors. In the world rankings, Turkey has shown a steady rise since 2007, especially in the construction of superyachts (24 m and above), and continued to be the third in total length in 2010 - 2017. Educational institutions that train personnel for the yacht building sector in our country are only at the level of vocational high schools. Students who graduate after high school cannot continue an education on yacht building, which is a continuation of high school education in vocational college or faculty programs. The results and suggestions to come out of this study are very important in order to maintain the success of the sector in the international platform and to move it to better points. Attention will be drawn to the training on Yacht Building and opinions will be taken about the necessity of the training, its problems and the dimension of the university. Within the scope of the study, the
INVESTIGATION OF MECHANICAL PROPERTIES OF PIPES WITH BUTT CURVED LAP JOINTS SUBJECTED TO TORSION
Authors: YETKİN Cüneyt , ÇİTİL Şerif , İhsan KAYA Ali
Published: November 2021

In this study, the mechanical properties of steel pipe joints bonded with an acrylic adhesive under torsion were investigated by considering different overlap lengths and curvilinear radii. For this purpose, St-37 galvanized steel pipes with ØD = 21.3 mm outer and Ød = 15.9 mm inner diameters were modeled in three dimensions by creating 8, 10, 12 mm overlapping lengths in male and female form and 30, 40 and 50 mm curvilinear radii on the forehead regions. Numerical analyzes of the created models were performed in the ANSYS Workbench program, and samples with an overlap length of 10 mm were prepared on the CNC (Computer Numerical Control) bench to verify the numerical analysis. The prepared male and female specimens were joined using an acrylic-based DP810 structural adhesive resistant to humid environments, curable at room temperature, and validation experiments were carried out. After the study, obtained numerical and experimental data showed that pipe lap joints subjected to torsional moment with the same lap length but different curvilinear radius have been observed to vary significantly in the amount of load they carry. In addition, as the overlap length increased, the amount of load they carried increased. Also, in this study was compared by performing stress analyzes according to the overlap length and radii of curvature.
Reinvestigation of the Multiepoch Direct Detections of HD 88133 b and Upsilon Andromedae b
Authors: Buzard Cam , Piskorz Danielle , Lockwood Alexandra C. , Blake Geoffrey , Barman Travis S. , Benneke Björn , Bender Chad F. , Carr John S.
Published: November 2021

We reanalyze the multiepoch direct detections of HD 88133 b and ups And b that were published in Piskorz et al. (2016) and Piskorz et al. (2017), respectively. Using simulations to attempt to reproduce the detections, we find that with the six and seven L-band Keck/NIRSPEC epochs analyzed in the original works, the planets would not have been detectable unless they had unreasonably large radii. HD88133 and ups And both have fairly large stellar radii, which contributed to the difficulty in detecting the planets. We take this opportunity to consider how these planets may have been detectable with the small number of epochs originally presented by running simulations both with the upgraded NIRSPEC instrument and with near-zero primary velocities, as recommended by Buzard et al. (2021). While seven L-band NIRSPEC2.0 epochs with near-zero primary velocities would have allowed a strong (10.8σ) detection of ups And b, many more than six L-band epochs would have been required for a strong detection of HD88133b, which could be due in part to both this system’s large stellar radius and low stellar temperature. This work stresses the importance of careful analytic procedures and the usefulness of simulations in understanding the expected sensitivity of high-resolution spectroscopic data.
The Magnetic Mechanism for Hotspot Reversals in Hot Jupiter Atmospheres
Authors: Hindle A. W. , Bushby P. J. , Rogers T. M.
Published: November 2021

Magnetically driven hotspot variations (which are tied to atmospheric wind variations) in hot Jupiters are studied using nonlinear numerical simulations of a shallow-water magnetohydrodynamic (SWMHD) system and a linear analysis of equatorial SWMHD waves. In hydrodynamic models, mid-to-high-latitude geostrophic circulations are known to cause a net west-to-east equatorial thermal energy transfer, which drives hotspot offsets eastward. We find that a strong toroidal magnetic field can obstruct these energy transporting circulations. This results in winds aligning with the magnetic field and generates westward Lorentz force accelerations in hotspot regions, ultimately causing westward hotspot offsets. In the subsequent linear analysis we find that this reversal mechanism has an equatorial wave analogy in terms of the planetary-scale equatorial magneto-Rossby waves. We compare our findings to three-dimensional MHD simulations, both quantitatively and qualitatively, identifying the link between the mechanics of magnetically driven hotspot and wind reversals. We use the developed theory to identify physically motivated reversal criteria, which can be used to place constraints on the magnetic fields of ultra-hot Jupiters with observed westward hotspots.
Forced Linear Shear Flows with Rotation: Rotating Couette–Poiseuille Flow, Its Stability, and Astrophysical Implications
Authors: Ghosh Subham , Mukhopadhyay Banibrata
Published: November 2021

We explore the effect of forcing on the linear shear flow or plane Couette flow, which is also the background flow in the very small region of the Keplerian accretion disk. We show that depending on the strength of forcing and boundary conditions suitable for the systems under consideration, the background plane shear flow, and hence the accretion disk velocity profile, is modified into parabolic flow, which is a plane Poiseuille flow or Couette–Poiseuille flow, depending on the frame of reference. In the presence of rotation, the plane Poiseuille flow becomes unstable at a smaller Reynolds number under pure vertical as well as three-dimensional perturbations. Hence, while rotation stabilizes the plane Couette flow, the same destabilizes the plane Poiseuille flow faster and hence the forced local accretion disk. Depending on the various factors, when the local linear shear flow becomes a Poiseuille flow in the shearing box due to the presence of extra force, the flow becomes unstable even for Keplerian rotation, and hence turbulence will ensue. This helps to resolve the long-standing problem of subcritical transition to turbulence in hydrodynamic accretion disks and the laboratory plane Couette flow.
A Catalog of Host Galaxies for WISE-selected AGN: Connecting Host Properties with Nuclear Activity and Identifying Contaminants
Authors: Barrows R. Scott , Comerford Julia M. , Stern Daniel , Assef Roberto J.
Published: November 2021

We present a catalog of physical properties for galaxies hosting active galactic nuclei (AGN) detected by the Wide-field Infrared Survey Explorer (WISE). By fitting broadband spectral energy distributions of sources in the WISE AGN Catalog with empirical galaxy and AGN templates, we derive photometric redshifts, AGN bolometric luminosities, measures of AGN obscuration, host galaxy stellar masses, and host galaxy star formation rates (SFRs) for 695,273 WISE AGN. The wide-area nature of this catalog significantly augments the known number of obscured AGN out to redshifts z ∼ 3 and will be useful for studies focused on AGN or their host galaxy physical properties. We first show that the most likely non-AGN contaminants are galaxies at redshifts z = 0.2–0.3, with relatively blue W1–W2 colors, and with high specific SFRs for which the dust continuum emission is elevated in the W2 filter. Toward increasingly lower redshifts, WISE AGN host galaxies have systematically lower specific SFRs relative to those of normal star-forming galaxies, likely due to decreased cold gas fractions and the time delay between global star formation and AGN triggering. Finally, WISE AGN obscuration is not strongly correlated with AGN bolometric luminosity but shows a significant negative correlation with the Eddington ratio. This result is consistent with a version of the receding torus model in which the obscuring material is located within the supermassive black hole gravitational sphere of influence and the dust inner radius increases due to radiation pressure.
Characterizing Extreme Emission-line Galaxies. I. A Four-zone Ionization Model for Very High-ionization Emission*
Authors: Berg Danielle A. , Chisholm John , Erb Dawn K. , Skillman Evan D. , Pogge Richard W. , Olivier Grace M.
Published: November 2021

Stellar population models produce radiation fields that ionize oxygen up to O+2, defining the limit of standard H ii region models (<54.9 eV). Yet, some extreme emission-line galaxies, or EELGs, have surprisingly strong emission originating from much higher ionization potentials. We present UV HST/COS and optical LBT/MODS spectra of two nearby EELGs that have very high-ionization emission lines (e.g., He ii
λλ1640,4686 C iv
λλ1548,1550, [Fe v]λ4227, [Ar iv]λλ4711,4740). We define a four-zone ionization model that is augmented by a very high-ionization zone, as characterized by He+2 (>54.4 eV). The four-zone model has little to no effect on the measured total nebular abundances, but does change the interpretation of other EELG properties: we measure steeper central ionization gradients; higher volume-averaged ionization parameters; and higher central T

e
, n

e
, and log U values. Traditional three-zone estimates of the ionization parameter can underestimate the average log U by up to 0.5 dex. Additionally, we find a model-independent dichotomy in the abundance patterns, where the α/H abundances are consistent but N/H, C/H, and Fe/H are relatively deficient, suggesting these EELGs are α/Fe-enriched by more than three times. However, there still is a high-energy ionizing photon production problem (HEIP3). Even for such α/Fe enrichment and very high log U s, photoionization models cannot reproduce the very high-ionization emission lines observed in EELGs.