bluuebunny/crossref_metadata_2025 huggingface dataset:
Literature Review: Peranan Media Informasi Kesehatan Dalam Penanganan Kasus KLB (Covid 19)
Authors: Willy Haposan  , Deasy Rosmala Dewi  , Noor Yulia  , Wiwik Viatiningsih
Published: April 2022

The number of deaths due to Covid-19 is increasing from time to time. The industrial era 4.0 is one of the eras of public information disclosure, therefore there are many media that can be used to support communication patterns and activities. This information disclosure will make it easier for citizens to carry out remote control and communication to monitor activities carried out by the government in dealing with this pandemic. This is one form of easy access to public information disclosure supported by information technology media. The purpose of this study was to determine the role of health information media in controlling the COVID-19 outbreak and to find out the most common way the media used to provide health information on Covid-19. This study was designed using a Literature review that examines the Role of Information Media in Handling Covid-19 cases. The results of a study of 8 journals found that health information media had several roles in handling Covid 19. The largest role was the media that played a role in educating the public about the importance of implementing health protocols and social distancing. It can be concluded that the role of the information media in handling the Covid-19 outbreak is very important, because the media are asked to always update data quickly, validly and in real time. The media are also asked to be able to break the chain of spread of Covid-19 by informing the travel ban, recommendations to comply with health protocols and recommendations to comply with social distancing procedures. distancing is the most common way.
Kaitan COVID-19 dengan Risiko Bangkitan Epileptik
Authors: Johanes Stephanie , Wreksoatmodjo Budi Riyanto
Published: April 2022

COVID-19 dapat menyebabkan kegagalan organ tubuh seperti sistem pernapasan, ginjal, hati, dan jantung. Pada beberapa orang juga ditemukan gejala sistem saraf, seperti delirium, confusion, nyeri kepala, vertigo, hemorrhagic stroke dan iskemik, hilangnya sensasi penciuman dan perasa, kejang atau bangkitan epileptik. Bangkitan epileptik pada kasus COVID-19 dapat dikaitkan dengan aktivasi sel glia, kerusakan sawar darah-otak, keadaan hipertermia atau gangguan elektrolit dan gangguan neurotransmiter. Di lain pihak, pengaruh infeksi COVID-19 pada pasien epilepsi masih belum diketahui pasti.

 

COVID-19 can cause organ failure such as the respiratory system, kidneys, liver, and heart. Risks of neurological complications are delirium, stroke, loss of smell dan taste, and convulsion/epileptic seizure. Seizures in COVID-19 may be associated with glial activation, blood-brain barrier disruption, and hyperthermia and/or neurotransmitter dysregulation. On the other hand, the impact of COVID-19 on epileptic patients is yet to be identified. 
Resusitasi Neonatus: Algoritma Terkini
Authors: Imanadhia Ashfahani , Yanika Grevy
Published: April 2022

Sebagian besar bayi baru lahir akan melalui tahapan transisi dari intrauterin ke ekstrauterin dengan lancar atau tanpa distres, namun pada sebagian kecil bayi dibutuhkan bantuan resusitasi lanjutan. Keberhasilan resusitasi membutuhkan kemampuan dan kerjasama tim yang baik. Pemahaman yang baik tentang tahapan pada algoritma, mutlak dikuasai oleh setiap petugas resusitasi.

 

In the majority of newborn, the transition from intrauterine to exrauterine environment goes smoothly without any distress; but in a few cases, further resuscitation is needed. Skills and good teamwork are needed to achieve successful resuscitation. Every personnel involved in resuscitation procedure must thoroughly mastered each step in the algorithm.
Effects of Variable Practice on Kinematics and Accuracy of Throwing in Boys with Developmental Coordination Disorder
Authors: Przysucha Eryk , Klarner Taryn
Published: April 2022

Many children with Developmental Coordination Disorder (DCD) cannot throw, which often prevents them from taking part in age-appropriate activities. The present research examined the degree to which variable practice, embedded in the Motor Schema Theory (Schmidt, 1975), would positively affect movement effectiveness, and coinciding accuracy, as well and parametrization of spatial and temporal aspects of control. Nine boys diagnosed with DCD (M = 10.7 years, SD = 1.0) participated in a pre-test, ten 30 minute training sessions, post-test, and a transfer test. Only pre- and post-tests involved kinematic data collection and measurement of accuracy. The variable practice involved throwing a tennis ball from a distance of 5 meters at 3 different targets (40 cm vs 35 cm vs 25 cm), positioned in three different locations. The transfer test was presented in a new environment with novel conditions. Results reveled improvement in movement effectiveness, at the group level, however when individual data was examined not all participants benefited to the same degree, especially when the transfer test was considered. All participants improved in regards to their accuracy. The changes in the outcome coincided with changes in spatial parametrization at the elbow, but not the shoulder. Also, higher velocity of the ball and angular velocity at the elbow were evident. From the clinical standpoint, the present study highlighted the importance of introducing context relevant variability in the learning program, however the decline in performance in the transfer test indicates that more research is warranted to understand the lasting effects on motor schema. 
Long-Run Stability of Money Demand and Monetary Policy: The Case of South Korea
Authors: Dritsaki Melina , Dritsaki Chaido
Published: April 2022

The current paper aims to investigate the stability of money demand in the case of Korea. Since the economic reforms in Korea faced considerable structural changes, it was difficult to formulate a stable money demand function. The use of unit root and cointegration tests with structural breaks suggest that economic and financial deregulations have influenced the stability of money demand. The cointegration results suggest a cointegration vector in all models, implying a long-run relationship. Furthermore, the estimated long-run equations show that the elasticity of long-run industrial production to real money is positive and very close to one. Finally, the exogeneity test shows a long-run, one-way, causal relationship from industrial production to M1 and a bi-directional causality between M1 and interest rate in both models. In the case of M3, there are long-run, one-way, causal relationships from industrial production and interest rate to M3 in both models.
La política petrolera en el gobierno de la revolución ciudadana: El caso del Campo Sacha
Authors: García-Osorio Nelson Euclides
Published: April 2022

En la primera parte, se realiza un resumen del manejo del petróleo a partir de 1972 hasta la actualidad, así como también se describe la política petrolera aplicada por los gobiernos, desde la administración del doctor Oswaldo Hurtado hasta la administración del señor Guillermo Lasso. En la segunda, se analiza el entorno jurídico en el contexto de los recursos naturales especialmente del petróleo, en el marco de la Ley de Hidrocarburos y de la Constitución de la República del Ecuador. Y en la tercera, se analiza la producción en el Campo Sacha, adjudicada a ORNCEM mediante el contrato de servicios específicos y de acuerdo a sus dos contratos modificatorios. Se concluye con algunas consideraciones que se deben tomar en cuenta y que llaman a la reflexión cuando se proponen y ejecutan contratos cuyo beneficio no es el mejor para el país. Por otro lado, los bosques son grandes “limpiadores” de dióxido de carbono, al ser destruidos se anula su potencial de absorción y, por lo tanto, contribuyen al calentamiento global del planeta por el incremento de gases de efecto invernadero, razón por la cual, se debe contrarrestar la deforestación.
Recaudación de impuestos en Ecuador: 2018 – 2020
Authors: Jácome Sandoval Wilson Eduardo
Published: April 2022

El presente texto tiene como objetivo identificar el valor que en promedio paga un ciudadano del impuesto al valor agregado (IVA) e impuesto a la renta (IR) por cada provincia, para lograr esto empieza analizando los ingresos corrientes del país y la estructura de los principales ingresos tributarios, identifica que los impuestos que más aportan al presupuesto del gobierno central son el impuesto a la renta y el impuesto al valor agregado, el sistema de recolección de dinero para el Estado gira alrededor de estos dos impuestos, continúa con una breve descripción histórica del IR y el IVA, a continuación analiza la composición de ingresos del país en el período 2018 - 2020, al valor de la recaudación de IVA por provincia divide para la proyección de la población, para el mismo año obtiene así el valor promedio, por provincia, que cada habitante pagó de IVA, similar procedimiento se realiza con el IR, identifica las provincias que pagan más, las que pagan menos en términos per cápita, los valores obtenidos sirven de insumo para identificar patrones de conducta que son evidenciados en las conclusiones del estudio. El documento termina con sugerencias de nuevos estudios.
La ética empresarial como fuente de ventaja competitiva. Indicadores de su efecto sobre las organizaciones
Authors: Scavone Graciela , Marchesano Marisa
Published: April 2022

Existe actualmente una tendencia al establecimiento de una relación armoniosa entre las empresas y el entorno en el que desarrollan sus actividades, en las cuales la ética y la responsabilidad social empresaria cobran relevancia. Nuevas estrategias son llevadas a cabo por las organizaciones a fin de dar respuestas a aspectos de sustentabilidad, y a la vez, obtener ventajas competitivas diferenciales. El presente trabajo tiene como objetivo analizar si las empresas que obtienen ventajas competitivas, brindan, a través de revelaciones acerca de su desempeño ético y sustentable, respuestas concretas que permitan a los grupos de interés obtener información clara, oportuna y comparable para un adecuado proceso decisorio. Se consultó bibliografía proveniente de fuentes primarias sobre la temática, procediéndose, asimismo, al análisis de revelaciones relacionadas con el comportamiento ético y responsable, brindadas por empresas que, operando en Argentina, acceden a los mercados de capitales y son socialmente responsables. Se concluye que, la información brindada, contribuye a la toma de decisiones de los lectores interesados en el análisis de un desempeño ético y responsable. Esto genera para las emisoras ventajas competitivas tales como el acceso al capital con menores costos, prestigio, mayor grado de adhesión y colaboración del personal, mejor relación con los grupos de interés clave, entre otros beneficios. Sin embargo, esta información no se puede asegurar que sea completa ni comparable, lo que se estima podría lograrse con la implementación de un marco que regule el desempeño integral de las empresas.
Método de enseñanza-aprendizaje de las competencias socioemocionales y morales. Uso de las TIC en educación superior
Authors: Otero Susana , Crowe María Elisa , Sartuquí Agustín Daniel
Published: April 2022

El método de enseñanza-aprendizaje de competencias socioemocionales y morales se ve interpelado a ofrecer nuevas respuestas, en virtud de las últimas investigaciones, y de la experiencia innovadora en la práctica educativa universitaria por aislamiento físico necesario como medio de prevención del COVID-19. El objetivo fue aplicar el método de enseñanza-aprendizaje de las competencias socioemocionales y morales, en el entorno virtual, a los estudiantes de la carrera de Psicología de la Facultad de Psicología y Psicopedagogía, USAL, registrando aciertos y limitaciones. La fundamentación teórica se enmarca en el aporte fenomenológico-hermenéutico (Husserl, 1954; Heidegger, 1970; Waldenfels, 1997). En lo pedagógico-didáctico se basa en la Ratio Studiorum y las teorías psicopedagógicas actuales mediadas por la tecnología. Se trata de un estudio exploratorio, descriptivo-interpretativo, de diseño fenomenológico hermenéutico. El instrumento utilizado fue la entrevista de carácter estructurado administrada a los estudiantes, que se desempeñaron como usuarios de TIC en educación durante el período de cuarentena por COVID-19. A modo de conclusión, si bien ha predominado en principio el temor, la ansiedad, incertidumbre sin embargo coinciden en haber podido regular dichas emociones en el proceso y finalmente disfrutar del mismo. Las preocupaciones previas en torno a la pérdida del contacto presencial en la construcción del conocimiento y el seguimiento del aprendizaje se han visto compensadas con la utilización de la presencia virtual sincrónica. También han coincidido en una mayor organización en la enseñanza-aprendizaje y la sistematización con respecto a las clases, material y evaluación de los mismos.
Cerium-tricalcium phosphate coating for 316L stainless steel in simulated human fluid: Experimental, biological, theoretical, and electrochemical investigations
Authors: Abdulaah Hiba A. , Al-Ghaban Ahmed M. , Anaee Rana A. , Khadom Anees A. , Kadhim Mustafa M.
Published: April 2022

Tricalcium phosphate (TCP) has many advantages in biomedical applications especially in teeth and bones, and therefore many researches focused on enhancing the properties of this material by different methods. Because of importance of the cerium in repairing the performance of cells in human body, this work aims to substitute the cerium in TCP structure to give better properties. Coating of Ce/TCP on SS 316L was applied by radio frequency (RF) sputtering technique. This coating was characterized by XRD, FESEM/EDS with EDS mapping, AFM, and electrochemical analysis. These techniques confirm the presence of Ce with TCP in deposited layer and the SEM gave more compact layer with higher roughness and lower average diameter. EDS mapping shows the presence of suggested metal ions in the coating. Theoretical study by DFM was done to illustrate the substitution of Ce in the lattice structure and stable sites for accommodation. Electrochemical studies showed that presence of the coating layer improves corrosion resistance with 91% protection efficiency.
Eddies and the Distribution of Eddy Kinetic Energy in the Arctic Ocean
Authors:   Alfred Wegener Institute, von Appen Wilken-Jon , Baumann Till , Janout Markus , Koldunov Nikolay , Lenn Yueng-Djern , Pickart Robert , Scott Robert , Wang Qiang
Published: April 2022

Mesoscale eddies are important to many aspects of the dynamics of the Arctic Ocean. Among others, they maintain the halocline and interact with the Atlantic Water circumpolar boundary current through lateral eddy fluxes and shelf-basin exchanges. Mesoscale eddies are also important for transporting biological material and for modifying sea ice distribution. Here, we review what is known about eddies and their impacts in the Arctic Ocean in the context of rapid climate change. Eddy kinetic energy (EKE) is a proxy for mesoscale variability in the ocean due to eddies. We present the first quantification of EKE from moored observations across the entire Arctic Ocean and compare those results to output from an eddy resolving numerical model. We show that EKE is largest in the northern Nordic Seas/Fram Strait and it is also elevated along the shelf break of the Arctic Circumpolar Boundary Current, especially in the Beaufort Sea. In the central basins, EKE is 100–1,000 times lower. Generally, EKE is stronger when sea ice concentration is low versus times of dense ice cover. As sea ice declines, we anticipate that areas in the Arctic Ocean where conditions typical of the North Atlantic and North Pacific prevail will increase. We conclude that the future Arctic Ocean will feature more energetic mesoscale variability.
Comparative Analysis of Major Stock Markets in Relation to Global Financial Crises: Evidence from 2000 to the COVID-19 Pandemic
Authors: Jun Doobae , Kim Jinsu , Kim Gwangil
Published: April 2022

We analyze the impact of financial crises on major stock markets from 2000 to the COVID-19 pandemic using Fourier series. Analyzing the behaviors of the spectra obtained from monthly returns of their indices, we identify three global financial crises from 2000 to 2015, with different characteristics. In addition, applying Z-test and the color-contour plotting method to monthly propagations of the spectra of major frequencies from the monthly returns of each index, we analyze the developments in each market around the crises by comparing patterns in the color-contour plots. Using recent status analysis, we identify an instability around 2016 close to a real crisis; starting in 2020, the markets, which had already recovered from this instability have generated abnormal signals of an approaching crisis. Applying Z-test and color-contour plotting to monthly propagations from the recent status, we show that recent developments in major markets might be more serious than those occurring around previous financial crises.
Empowering the Community to Identify and Prioritize Neighborhood Development Needs: A Qualitative Study
Authors: Malekafzali Hosein , Shojaei Parisa , Zare Abdollahi Salime , Lotfi Mohammad Hasan
Published: April 2022

Background: The present study aimed to empower the community to identify and prioritize the needs for the health development of the Eskan neighborhood in Yazd province, Iran. Methods: This community-based participatory research (CBPR) was conducted in the Eskan neighborhood, Yazd. The project ‘neighborhood health improvement plan (Tabasom)’ was conducted, which included five steps (i.e., area identification, organization, empowerment, needs assessment and prioritization, and intervention and action). In the present paper, two steps, namely empowerment and needs assessment, are described. Results: The results revealed 10 high-priority problems in the Eskan neighborhood. The first problem with the highest priority was associated with waste management. Conclusions: According to the findings, empowering and educating individuals to detect the neighborhood problems led to the better identification of the problems, resulting in the further development of the neighborhood and the provision of more effective solutions by the authorities with the community participation.
Help Wanted. Really?
Authors: Hubbartt William S. ,   After Dinner Conversation
Published: April 2022

Can machine learning and AI truly evaluate a person and determine if they are suited for a potential position? In this work of philosophical short story fiction, Cindy is a recent college graduate struggling to find her first job. She has been sending her resume out for months without any luck when her brother, Jordan, explains to her that her resume is missing important buzz words that initial computer screening programs look for. She edits her resume and she starts to get job interests. Her first interview, however, is not with a person, but is a video call with a humanoid AI program. She doesn’t think the interview went well. Jordan expresses his frustration the how technology is changing and decides, in retaliation, to write a job application bot to send out resumes and counter the job hiring bots that are screening applicants.
On Good Authority
Authors: Worrell Peri Dwyer ,   After Dinner Conversation
Published: April 2022

How do you weigh the rights of the individual against the needs of the general population? In this work of philosophical short fiction, a zombie virus has ravaged the planet for over 30 years. While generations have been wiped out. Dr. Vivian Totter has developed a vaccine for the zombie infection and is being escorted to a nearby compound to accept an award for her world changing work. She is taken in an miliary vehicle across opens lands still infested with zombies. Their first overnight stop is in a city that causes her to find out that her mother was mentally disabled, raped, and later killed by zombies. With this revelation fresh in her mind she heads to her final destination, only to be confronted by members of the general population who assert the vaccination is killing a percentage of all those being forced to take it.
Læreres forståelser af bidrag til elevers dannelse i undervisning med litteraturlæremidler på mellemtrinnet
Authors: Oksbjerg Marianne
Published: April 2022

ResuméNyere forskning peger på, at didaktiske litteraturlæremidler spiller en central rolle for læreres undervisningspraksis i skolens danskfag. Der mangler imidlertid forskning i, hvilke forestillinger dansklærere har om elevers dannelse i undervisning, hvor didaktiske læremidler inddrages. I artiklen belyses dette område gennem analyser af interviews med fire lærere, som underviser på mellemtrinnet. For to af lærernes vedkommende peger resultaterne på, at deres egen forståelse af undervisningens dannelsesbidrag på centrale områder afviger fra den forståelse, der implicit ligger i det valgte læremiddel. Et resultat er desuden, at lærerne ikke selv ser denne diskrepans.

Abstract (UK)Recent research indicates that didactical learning resources play an essential role in teachers practice in literature teaching in primary education, but research focusing on teachers understanding of students Bildung when they involve didactical learning resources in classroom teaching is rarely seen. This article analyzes interviews with four teachers who are involving didactical learning resources in literature teaching for grade 5 and 6. The interviews show that two of the teachers tend to understand students Bildung in a significantly different way than the understanding represented in the learning resources. Furthermore, it is notable that the teachers themselves are not aware of this discrepancy.
Secondary bone grafting for alveolar clefts: surgical timing, graft materials, and evaluation methods
Authors: Kim Junhyung , Jeong Woonhyeok
Published: April 2022

Alveolar cleft belongs to the spectrum of cleft lip and/or palate, affecting 75% of cleft lip/palate patients. The goals of alveolar cleft treatment are stabilizing the maxillary arch, separating the nasal and oral cavities, and providing bony support for both erupting teeth and the nasal base via the piriform aperture. Secondary alveolar bone grafting is a well-established treatment option for alveolar cleft. Secondary alveolar bone grafting is performed during the period of mixed dentition using autologous bone from various donor sites. There are several issues relevant to maximizing the success of secondary alveolar bone grafting, including the surgical timing, graft material, and surgical technique. In this study, we reviewed issues related to surgical timing, graft materials, and evaluation methods in secondary alveolar bone grafting.Abbreviations: ABG, alveolar bone grafting; CBCT, cone-beam computed tomography; DBM, demineralized bone matrix; GPP, gingivoperiosteoplasty; rhBMP, recombinant human bone morphogenetic protein; 2D, two dimensional; 3D, three dimensional
Eros and Modernity: Georg Simmel on Love
Authors: Oakes Guy
Published: April 2022

The text below was originally published under the name “Eros and Modernity: Simmel on Love” in: The Sociology of Emotions: Original Essays and Research Paper. Franks, D.D. and E. Doyle McCarthy (ed.). Greenwich, CT: JAI press, 1989, pp. 229-247. In the words of its author, the text was written at a time when he was intensely engaged with Simmel, working on his philosophy of history and his hermeneutics. Today, Guy Oakes revisits this text and allows Simmel Studies Journal to republish it for this special issue on love. The text explores in its first part the defining characteristics of erotic love according to Simmel: individuality, reciprocity, immediacy and radicalism. In the second part he concentrates on modernity and how it has had an impact on love relationships.
Loving the Stranger: Mixed Couples and Mixed Emotions
Authors: King-O’Riain Rebecca Chiyoko
Published: April 2022

This paper brings together two of the key theoretical concepts attributed to Georg Simmel – the notion of the ‘stranger’ (the person who is not indigenous to a social context and perpetually seen as possibly not belonging) and ‘love’ as socially constructed which has the potential to turn an individual love into a notion of ‘super individual couplehood’ unifying two individuals and transforming them in the process. Based on in-depth qualitative interviews with 35 people in ‘mixed’ couples, this paper examines how loving the stranger is constructed, maintained and challenged across cultures, languages, races, and nationalities.
Love and Marriage in Georg Simmel’s Work. A Nineteenth-Century Post-Romantic?
Authors: Rodríguez Morales Zeyda
Published: April 2022

The main purpose of this text is to address two crucial aspects of Georg Simmel's work: the originality of his sociological approach, as well as his conception of love feelings. To undertake this task, I will take as a frame of reference a fundamental cultural construction of his time, romantic love. I will try to show that although some of Simmel's ideas about love can be seen as a product of the prevailing mentality, others do not fit with this imaginary, and in my opinion, they are avant-garde and post-romantic because they freely propose different parameters to think, feel and engage into amorous relationships.
The Correlation between Solidification Rates, Microstructure Integrity and Tensile Plastic Behaviour in 4.2 wt.% Silicon Strengthened Ductile Iron
Authors: Angella Giuliano , Taloni Marcello , Donnini Riccardo , Zanardi Franco
Published: April 2022

High Silicon Strengthened Ductile Iron (HSiSDI) with 4.2 wt.% of silicon was produced in Y-blocks with different thicknesses to investigate the effects of the solidification rate on microstructure integrity and tensile mechanical properties. With decreasing solidification rates, the graphite degeneracy with the appearance of chunky graphite became more significant at the highest silicon contents, so chemical ordering and graphite degeneracy seemed to be qualitative explanations of tensile property degradation. However, a deeper analysis of the relationship between solidification rate, microstructure and tensile properties was realized through an innovative approach based on the Matrix Assessment Diagram (MAD), where the parameters of Voce equation resulting from best-fitting the experimental tensile flow curves of a significant number of HSiSDI samples, were plotted. For 3.5 wt.% silicon content, the MAD analysis indicated that the microstructure was sound for any solidification rate, while for 4.5 wt.% the microstructure was sound only for the fastest solidification rates. For 4.2 wt.% silicon content the MAD analysis pointed out that the tensile plastic behaviour and the microstructure integrity was in between the 3.5 and 4.5 wt.% silicon contents, representing a composition threshold where the reliable microstructures were only found with the fastest solidification rates, while considerable variability was found for the slowest ones. Support to the MAD analysis results was given from microstructure observations.
Mechanical stimulation promotes enthesis injury repair by mobilizing Prrx1+ cells via ciliary TGF-β signaling
Authors: Xiao Han , Zhang Tao , Li Changjun , Cao Yong , Wang Linfeng , Chen Huabin , Li Shengcan , Guan Changbiao , Hu Jianzhong , Chen Di , Chen Can , Lu Hongbin
Published: April 2022

Proper mechanical stimulation can improve rotator cuff enthesis injury repair. However, the underlying mechanism of mechanical stimulation promoting injury repair is still unknown. In this study, we found that Prrx1+ cell was essential for murine rotator cuff enthesis development identified by single-cell RNA sequence and involved in the injury repair. Proper mechanical stimulation could promote the migration of Prrx1+ cells to enhance enthesis injury repair. Meantime, TGF-β signaling and primary cilia played an essential role in mediating mechanical stimulation signaling transmission. Proper mechanical stimulation enhanced the release of active TGF-β1 to promote migration of Prrx1+ cells. Inhibition of TGF-β signaling eliminated the stimulatory effect of mechanical stimulation on Prrx1+ cell migration and enthesis injury repair. In addition, knockdown of Pallidin to inhibit TGF-βR2 translocation to the primary cilia or deletion of Ift88 in Prrx1+ cells also restrained the mechanics-induced Prrx1+ cells migration. These findings suggested that mechanical stimulation could increase the release of active TGF-β1 and enhance the mobilization of Prrx1+ cells to promote enthesis injury repair via ciliary TGF-β signaling.
Drosulfakinin signaling modulates female sexual receptivity in Drosophila
Authors: Wang Tao , Jing Biyang , Deng Bowen , Shi Kai , Li Jing , Ma Baoxu , Wu Fengming , Zhou Chuan
Published: April 2022

Female sexual behavior as an innate behavior is of prominent biological importance for survival and reproduction. However, molecular and circuit mechanisms underlying female sexual behavior is not well understood. Here, we identify the Cholecystokinin-like peptide Drosulfakinin (DSK) to promote female sexual behavior in Drosophila. Loss of DSK function reduces female receptivity while overexpressing DSK enhances female receptivity. We identify two pairs of Dsk-expressing neurons in the central brain to promote female receptivity. We find that the DSK peptide acts through one of its receptors, CCKLR-17D3, to modulate female receptivity. Manipulation of CCKLR-17D3 and its expressing neurons alters female receptivity. We further reveal that the two pairs of Dsk-expressing neurons receive input signal from pC1 neurons that integrate sex-related cues and mating status. These results demonstrate how a neuropeptide pathway interacts with a central neural node in the female sex circuitry to modulate sexual receptivity.
Recent Developments Concerning the Right to Silence and Privilege Against Self-Incrimination Under the Charter of Fundamental Rights of the EU – A Critical Reflection on Case C-481/19 DB v Consob
Authors: de Vries Aart
Published: April 2022

In February 2021, the Grand Chamber of the Court of Justice gave its highly anticipated ruling in Case C-481/19 DB v Consob. In its judgement, the Court recognised that the natural person who risks self-incrimination has the right to remain silent during proceedings which can lead to
the imposition of administrative penalties of a criminal nature. The Court of Justice did not adhere to its 'own' approach concerning the right to silence of undertakings in competition matters as established in Case C-374/87 Orkem v Commission, but aligned its judgement with the case-law
of the European Court of Human Rights instead. Although Case C-481/19 DB v Consob constitutes an important ruling which provides much needed clarity on scope of the right to silence of natural persons under the Charter, some important aspects of the right to silence and self-incrimination
remain unaddressed and new questions surface.
COVID-19 Pandemic and Social Fractures in Nigeria: Challenge to Public Policy Framing
Authors: Oladeinde Olusegun
Published: April 2022

In response to coronavirus disease 2019 (COVID-19) Pandemic, the first primary and immediate response of countries all over the world, including Nigeria, has been to introduce series of protocol, including lockdown ( and its “relaxation”), and other public heath guidelines on the large section of the population and business activities, as attempts to reduce the spread of the pandemic. However, implicated in the lockdown protocols has also been “irreparable damage” on the people, and their socio-economic activities; unleashing twin problems of deprivation and anxiety, for people in Sub-Sahara Africa (SSA). The paper analyses and provides a critical understanding of current dimensions and implications of COVID-19 pandemic on the lives and livelihood of a particular category of Nigerian population refers to as vulnerable group. It evaluates the current policy response and intervention programs of public authority in Nigeria, in mitigating the impact of the crisis. Evidence continue to show that strict lockdown directives not only affect social life of the people, but more significantly, with dire consequences on their livelihood.
Embedding Social Process Analysis into Employment Relations Understanding: Theoretical Insights and Conceptual Underpinning
Authors: Oladeinde Olusegun
Published: April 2022

The concept of social process is further explicated in this paper as a route to further understand employment relations system; in its comparative perspectives and analysis. The paper argues that analysis of employment relations needs to focus on context i.e. specifics, and cross national patterns of cultural/social process trajectories, in the explanation of institutional structures and characteristics that influence the dynamics and functions of a variety of employment relations systems. Review of extant literature on employment relations system calls for a re-cast, and embedding of social process into employment relations analysis. Such nuanced perspective seeks to adequately explain national employment relations institutions and their outcomes in historicity and context. Integrating cultural/social process nuances into our understanding, significantly explains all the dimensions embedded in a national employment relations system.
Isolation of Cercospora canescens and Management of Cercospora Leaf Spot (Cercospora canescens) of Mothbean through Botanicals
Authors: Kumar Rakesh , Meena A. K. , Kumar Vikash , Singh Jasveer
Published: April 2022

The pathogen was isolated from diseased leaves of mothbean on potato dextrose agar by standard tissue isolation method and pathogenicity was proved following Koch's postulates. On the basis of morphological studies like mycelium was whitish to brownish, hyaline and acircular, straight to variously curved, multiseptate (2-16) many celled, thread like conidia and cultural studies the pathogen was identified as Cercospora canescens Ellis and Martin. Among eight botanicals tested at three concentrations (5, 10 and 15%) under in vitro condition against C. canescens, neem seed kernel extract was found most effective and inhibiting mycelial growth (58.00%) at 15% concentration followed by tulsi leaf extract (52.96%) and neem leaf extract (44.68%) also found effective. Least mycelial growth inhibition of C. canescens was obtained in turmeric extract (27.31%) and giloy (25.31%) extract at 15% concentration.
Cattle Manure Alters the Soil Nutritional Status and Soybean Yield (Glycine max L. Merr.)
Authors: Ribeiro Evandro Alves , Teixeira Igor Ricardo Barbosa , Sousa Allan Sales de , Luz João Henrique Silva da , Brito Lucas Eduardo Morais , Nunes Bruno Henrique Di Napoli , Silva Heloisa Donizete da , Farias David Ingsson Oliveira Andrade de , Cardeal Indira Rayanne Pires , Oliveira Regina da Silva , Silva Calebe Oliveira Crispim da , Silva Rubens Ribeiro da
Published: April 2022

Soybean is one of the most important crops globally, despite significant numbers the crop in the Cerrado biome presents low natural fertility with a higher demand for fertilization. Seeking to improve the production of culture by reducing costs there is the possibility of using organic waste, which can be a very advantageous and interesting option when well used. The objective of this work was to evaluate the physiological, nutritional, and productive aspects of soybean crops grown with cattle manure associated with chemical fertilizers. The experimental design was in randomized blocks with eight replications (4 for destructive analyses and 4 for grain harvesting). The treatments were composed of 5 doses of cattle manure (0.0, 2.5, 5.0, 10.0, and 20.0 t ha-1) and control treatment (Control) without fertilization, without the use of manure and mineral fertilizer. The cattle manure provided a positive increase in the increase of levels of Ca, Mg, M.O, P, K, Fe, Zn and in the characteristics of plant height, stem diameter, soybean node number, dry weight of shoot, Falker chlorophyll index, root length and dry weight of root. The dose of 20.0 t ha-1 was the best response dose for soil nutritional conditioning for both physical and chemical characteristics, with an average increase of 68.26% in a comparison with only the use of conventional mineral fertilization.
Simulation of Effect of Diffusion Layer and Other Structural Parameters on the Performance of Hydrogen fuel Cell
Authors: Zhao Siwei , Wu Jiakai , Wang Minghao
Published: April 2022

Aims: Gas diffusion layer (GDL), catalytic layer (CL) and proton exchange membrane (PEM) are important components of hydrogen fuel cell (HFC). In this paper, the thickness of the diffusion layer, the catalytic layer and the proton exchange membrane of the hydrogen fuel cell are mainly simulated and analyzed, and the structural parameters with relatively good performance of the hydrogen fuel cell are obtained.

Place and Duration of Study: North China University of Water Resources and Electric Power, Zhengzhou, Henan Province, between November 2021 and March 2022.

Methodology: Fuel cell models with different diffusion layers, catalytic layers and proton exchange membrane thicknesses were established by ANSYS, and simulated and analyzed them in the PEMFC module in Fluent, comparing the temperature distribution, water distribution and current density distribution of HFC with diffusion layer thickness, catalytic layer thickness and proton exchange membrane thickness, and comparing the structural parameters with relatively good performance of hydrogen fuel cells.

Conclusion: The results show that the thicker the diffusion layer is, the more unfavorable the product water is discharged, which hinders the diffusion of oxygen and reduces the performance of fuel cell; The larger the thickness of the catalytic layer, the higher the current density and the better the performance of the hydrogen fuel cell; The larger the thickness of proton exchange membrane, the negative effect on the diffusion of reactive gas, the lower the reaction efficiency and current density of fuel cell, and the lower the performance of fuel cell.
Frequency of Multiple Canals in Mandibular Premolars and its Correlation with Other Anatomical Variants (C Shaped Canals in Mandibular Second Molars): A Retrospective and Cross-sectional Study
Authors: Keerthana T. , Ramesh Sindhu
Published: April 2022

Introduction: Recognition of variations in molar root morphology is critically important for dental procedures such as root canal treatment and apical surgery. Usage of CBCT enables systemic evaluation of teeth including the number of roots and canals, location of roots, etc. The aim of this study was to determine the frequency of multiple canals in mandibular first and second premolars and to evaluate correlations between other anatomical variants using Cone beam computed tomography (CBCT).

Methodology: The protocol of this retrospective, cross-sectional study was approved by the Ethics Committee of Saveetha Dental Hospital, Chennai, India. Images of mandibular premolars were obtained from patients who had undergone CBCT scanning at the hospital between January 2018 and November 2020.Cross-sectional images in the axial, coronal, and sagittal planes were reconstructed using GALILEOS ComfortPLUS ( Sirona 3D)is an advanced CBCT that provides seamless workflow integration. Serial axial, coronal and sagittal-plane CBCT images were closely examined at 1.0-mm intervals from the canal orifice to the apex.

Results: Using SPSS software (ver. 21; SPSS, Inc., Chicago, IL, USA), chi-squared test was performed for analyses of different parameters involved. Various anatomical variants such as distolingual roots of first molars, C shaped canals of second molars are highly correlated with different canal configurations of mandibular premolars.

Conclusion: This retrospective study showed that different configurations of mandibular premolars canals was significantly correlated with the presence of Distolingual root (DLRs) in first molars, and C shaped canals in second molars. Understanding and identifying  anatomical variants is important in comprehensive success of endodontic treatment.
Performance Improvement of Underground Pipe Line Foundation Using Recycled Materials
Authors: Kim Seongkyum , Lee Kwanho
Published: April 2022

According to the Seoul City survey, about 84% of the occurrence of ground subsidence was the main cause of damage to the sewer pipe, and it was related to the aging of the sewage pipe foundation and the sewage pipe itself. To reduce the damage, a combination of field-assembled recycled plastic foundation and a fluid backfill material was applied. The bearing capacity, settlement, and pipe safety factor were evaluated for comparison with the existing crushed stone foundation and concrete foundation. The change in settlement was relatively small, according to the type of backfill used in the analysis. As for the support method used when selecting the foundation for the sewage pipe for a rigid pipe, it was found that applying a fixed type rather than a free type improved the safety of the pipe. The field-fabricated recycled plastic foundation has less material rigidity than the concrete foundation, but to compensate for this, applying the fluid backfill using 2% to 4% cement had the effect of increasing adhesion and enhancing the strength of the backfilling material, thus increasing the safety of the installed pipe.
Combined Experimental and DFT Study on 2D MoSe2 toward Low Infrared Emissivity
Authors: Wu Wei , Tong Liping , Zhou Han , Fan Tongxiang
Published: April 2022

Low infrared emissivity materials play a key role in thermal camouflage or retardation. Among these, fillers can be easily shaped into various flexible forms and normally provide an omnidirectional and polarization‐insensitive emissivity. However, conventional fillers suffer from drawbacks of full‐waveband ultrahigh reflectivity, unsatisfactory thermal camouflage performances, or poor chemical/thermal stabilities. Herein, 2D MoSe2 is discovered as a new semiconductor with intrinsic low infrared emissivity after first‐principle density functional theory calculation and experimental demonstration on eight types of two‐dimensional materials (2DMs). Mechanisms of electron–photon reflection and phonon–photon absorption for the low infrared emissivity are proposed. A two‐step microwave‐assisted amination process is developed to exfoliate the nanosheets and obtain a desired low infrared emissivity. The as‐obtained chitosan modified MoSe2 (CS@MoSe2) has an ultrahigh spectral reflectivity of 78%–86% in 8–14 µm, and its resin‐based coating still exhibits a low infrared emissivity of 0.32 and shows a dramatic reduction in radiation temperature of 28 °C for a hot object at 70 °C. Besides, CS@MoSe2 can endure a high temperature of 220 °C and is demonstrated with a long‐term thermal camouflage efficiency in hot environments. This work will guide 2DMs selection and preparation toward desired infrared radiation properties to satisfy numerous applications.
Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution
Authors: Zhang Tao , Liu Yipu , Yu Jie , Ye Qitong , Yang Liang , Li Yue , Fan Hong Jin
Published: April 2022

Strain in layered transition‐metal dichalcogenides (TMDs) is a type of effective approach to enhance the catalytic performance by activating their inert basal plane. However, compared with traditional uniaxial strain, the influence of biaxial strain and the TMD layer number on the local electronic configuration remains unexplored. Herein, via a new in situ self‐vulcanization strategy, biaxially strained MoS2 nanoshells in the form of a single‐crystalline Ni3S2@MoS2 core–shell heterostructure are realized, where the MoS2 layer is precisely controlled between the 1 and 5 layers. In particular, an electrode with the bilayer MoS2 nanoshells shows a remarkable hydrogen evolution reaction activity with a small overpotential of 78.1 mV at 10 mA cm‐2, and negligible activity degradation after durability testing. Density functional theory calculations reveal the contribution of the optimized biaxial strain together with the induced sulfur vacancies and identify the origin of superior catalytic sites in these biaxially strained MoS2 nanoshells. This work highlights the importance of the atomic‐scale layer number and multiaxial strain in unlocking the potential of 2D TMD electrocatalysts.
Transparent Phosphor Thin Films Based on Rare‐Earth‐Doped Garnets: Building Blocks for Versatile Persistent Luminescence Materials
Authors: Castaing Victor , Lozano Gabriel , Míguez Hernán
Published: April 2022

Afterglow properties of persistent phosphors are attracting a great deal of attention in the fields of bioimaging, sensing, labeling, safety, or security. Complex garnet oxides, especially those doped with Ce3+ and Cr3+, are particularly relevant to this end since their persistent luminescence can be tuned through matrix composition and activated by visible light, in contrast to the vast majority of persistent phosphors that require UV excitation. Most extended preparation routes yield micrometer‐sized phosphors that display strong light scattering, which limits their versatility and applicability. Herein, nanostructured garnet oxide‐based thin films that are transparent and feature persistent luminescence properties are demonstrated. Following a sol–gel route and after high temperature annealing, few hundred nanometre‐thick Y3Al2Ga3O12:Ce3+,Cr3+ transparent films showing efficient green emission and afterglow are attained. Gd3Al2Ga3O12:Ce3+,Cr3+ transparent thin films displaying yellow afterglow with distinct persistent kinetics are demonstrated, to prove the generality of the approach herein proposed. Its versatility is further demonstrated by developing layered phosphors with time‐dependent chromaticity due to the unique persistent emission color – upon blue light excitation – and kinetics of each layer forming the stack. The results pave an avenue toward nanodevices and multifunctional coatings in which afterglow offers hitherto unexplored properties.
Synthesis of β‐Keto Sulfoxides via Copper(II)‐Catalyzed Aerobic Oxidation
Authors: Xiong Guowei , Huang Liangfeng , Gong Zhang , Wang Can , Chen Yunfeng
Published: April 2022

A copper‐catalyzed cross‐dehydrogenative coupling (CDC) reaction between aromatic aldehydes and DMSO was developed, which afforded β‐keto sulfoxides in 73–92% yields. The reaction process involved base‐promoted DMSO addition to aldehydes, and copper‐catalyzed aerobic oxidation. Furthermore, the aromatic alcohols which could be oxidized to aldehydes are also suitable substrates for this catalytic system.

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Sponge‐Like Nickel Carbonate of High Porosity and Carbonate Vacancy for High‐Performance CO2 Photoreduction
Authors: Yang Bixia , Zheng Yanting , Wen Yonglin , Zhang Tingshi , Lin Mingxiong , Yan Jiawei , Zhuang Zanyong , Yu Yan
Published: April 2022

As most of the fossil carbon on earth is stored in an oxidized state as carbonate minerals, exploration of metal carbonate catalyst for selective CO2 reduction can open appealing access to boost the CO2 capture and storage. However, carbonate is commonly regarded as a poor matrix to host photocatalytic active species, and current literature has few reports of carbonate‐based photocatalytic material. Herein, a hierarchically porous catalyst that features ≈5 nm deficient NiCO3 nanoparticles embedded in sponge‐like high‐magnesium calcite is disclosed. In the photocatalytic CO2 reduction reaction, the as‐prepared catalyst of low Ni content attains a high CO production rate of 10 565 µmol g−1 h−1 and a high selectivity of 94% relative to H2 evolution, a performance that surpasses many other state‐of‐the‐art nickel‐based catalysts. Experiments and theoretical calculations reveal that the carbonate vacancy of NiCO3 strengthens the adsorption and activation of CO2 more significantly than the corresponding oxygen vacancy of NiO. The inert CO2 molecule becomes highly deformed on the surface of NiCO3 which can be readily activated to the key intermediate CO2·− for the photoreduction reaction. The present findings add to the existing knowledge of advanced catalysis using defect materials and demonstrate an intriguing and rare case of highly performing carbonate‐based catalyst.