bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Compact MIMO Multiband Antenna for Wireless Radio Communication Application
Authors: Anand C.
Published: November 2021

Slot and patch modification for the design of a compact multiband antenna with Multi-Input-Multi-Output (MIMO) functionality is proposed in this paper. At various frequency bands, the antenna performance is obtained by modification and addition of slot and patch shapes in the design of the compact MIMO multiband antenna. Addition of slots or patches is done separately in the already existing multiband antenna designs. Whereas in this work, the addition of slot and patch are combined. Arlon Diclad 880 with a dielectric constant of 2.17 - 2.2 (εr) and height 0.75mm is used for the antenna design. The MIMO multiband antenna with the dimension of 12.5 mm × 7.5 mm is designed. On various millimeter-wave frequency bands ranging from 20 GHz to 40 GHz, the MIMO antenna can function as observed in the results of simulation and evaluation. This work shows that microstrip antennas can be added with slots and patches during their design and development, thereby enabling the antenna to operate under multiple frequency bands.
Three Phase Coil based Optimized Wireless Charging System for Electric Vehicles
Authors: Adam Edriss Eisa Babikir , Sathesh A.
Published: November 2021

With modernization and technology enhancements on a global scale, environmental consciousness has also been increasing in recent days. Various technologies and automobile industries are vandalized with sustainable solutions and green technologies. Transportation via roadways is mostly preferred for distant travel as well, despite the advancements in airways and railways, due to less capital outlay, door to door service possibility in rural areas etc. The conventional fuel vehicles are a huge contributor to environmental pollution. Electric vehicles are an optimal solution to this issue. The lives of the common masses are not impacted largely by the electric vehicles despite their market commercialization since a few decades. It is due to certain challenges associated with the electrical vehicles. A 100% efficient perpetual machine does not exist yet. Predominantly, challenges related to charging, hinders the success of e-vehicles. Frequent charging is required in case of long-distance travel and other scenarios in the existing vehicles. Based on the respective governments, extensive changes are made in the infrastructure to overcome the issues at the charging stations. In this paper, an enhanced wireless charging module for electric vehicles is presented. The use of multiple coils is emphasized for building up energy and transmitting it. The inductive power transfer mechanism and efficiency of the system are improved with the design of a three-phase coil. The mechanism for assessment of the energy consumed in e-vehicles is also discussed.
Peningkatan Kualitas Sumber Daya Manusia Melalui Pelatihan Peranan Humas bagi Anggota Polresta Tangerang
Authors:   Universitas Esa Unggul, Heriyanti Heriyanti , Ummanah Ummanah ,   Universitas Esa Unggul, Tambunan Resman Maharul ,   Universitas Esa Unggul
Published: November 2021

The rapid technology development and information made public (community) being so critical to the policies was taken by the government. This requires police institution to maintain of security guards, public order, enforce the law, provides protection, aegis and service to the community. Public Relations (PR) is an agency which have a duty to understand and evaluate a variety of public opinion in order to help to create harmony between particular agencies with the public. In order to increase quality of human resources in Police Department are required personnel with the ability in resolving problems the happens in society. In resolving these problems, that needed cooperation between police department, college and the community. The contribution of college to police department and the community with conducting the devotion to the community in cooperation Polresta Tangerang. The method in use in devotion community is by providing training of the role of public relations to Polresta Tangerang members through zoom cloud meeting. The role of public relations training aimed at giving public knowledge include similarity in communication, public relations function, basic principles of public relations, the management of the community and management of media relations may be good quality police. The evaluation of the training be concluded that the training that performed capable of increase understanding participants on the role of public relations.
COVID-19 Pandemic and the Rising Gig Economy: An Emerging Perspective
Authors: Joo Bashir Ahmad , Shawl Sana
Published: November 2021

The Gig economy refers to short term jobs, contract or freelance work and flexi timing jobs as opposed to traditional full-time labor, which has witnessed a rapid growth in the last decade across the globe. Digital platforms have largely developed a free market system where independent workers connect with the buyers of the services. The Platform or Gig economy has grown at a much faster pace than ever before from the onset of COVID-19 pandemic. Since the COVID-19 lockdown, the labor market has been affected in a drastic way and a trend towards short-term and temporary jobs has become commonplace. The Economic Survey, 2020-21 highlights the growing importance of Gig economy in India amid the pandemic-induced lockdown which has led to an immense growth in the online retail business. The employers began layoffs and instead engaged freelancers or flexi staff to bring down their overhead costs. Many studies have been conducted now on assessing the impact of the ongoing pandemic on the economy and stock markets, however, very few studies focus on the influence the pandemic had on the Gig economy. The present study attempts to fill this gap by evaluating the impact of COVID-19 on the Gig economy by assessing whether the increase in new COVID-19 cases lead to an increase in the number of gig workers in the Indian economy, or in other words, exerts a significant impact on the Indian gig economy or not.
Influence of Social Media on Student Lifestyle in Metro City
Authors: Oktaviani Dewi
Published: November 2021

Social media is a medium that allows users to do social activities virtually with each other through the internet network. The use of social media is mainly used to show excessive self-existence that affects the perspective, lifestyle, and culture of a nation. Social media for IAIN Metro students is essential not only to get exciting information but also to become a lifestyle. This study aims to determine and describe the influence of social media on the lifestyle of IAIN Metro students. Researchers' research method is a type of field research (field research), qualitative descriptive. The data sources that researchers use are primary data sources and secondary data sources. Primary data sources were obtained from IAIN Metro students. Secondary data sources are obtained from books, the internet, and other literature. Methods of data collection, researchers used interviews, observation, and documentation. The researcher's data analysis method is data reduction, presenting data, and concluding data and verification. The results showed that IAIN Metro students used social media such as Instagram, WhatsApp, and Facebook. Social media has become a lifestyle for IAIN Metro students. The influence of social media on the lifestyle of IAIN Metro students has both positive and negative impacts. Judging from the aspect, the behavior of IAIN Metro students is included in impulsive buying because it is based on a sudden desire for a moment. Islam recommends a fair and balanced pattern of consumption and use of wealth, not being stingy and not being extravagant.
Association Between Body Mass Index, Waist Circumference and Gerd-Q Scores: A Cross-Sectional Study
Authors: Tantoro Aurel Feodora , Alwi Shahab  , Syarif Husin  , Ratna Maila Dewi Anggraini  , Liniyanti D. Oswari
Published: November 2021

The prevalence of GERD has continued to increase in Asian countries in recent decades. The incidence of overweight and obesity continues to increase. Many studies have revealed that obesity in general or abdominal obesity causes a significant increase in the risk of GERD symptoms. The research objective was to determine the relationship between BMI and waist circumference with the incidence of GERD in the adult population of Palembang city.An analytic observational with a cross-sectional design. The population were all adults(≥20 years) of Palembang. The number of samples were 400 people. Data were taken from a self-completed questionnaire, distributed through various social media, then analyzed using logistic regression analysis.Among 400 subjects in the study, there were 81 subjects (20.3%) diagnosed with GERD, 43 subjects (10.8%) were overweight, 79 subjects (19.8%) were obese, and 160 subjects(40%) have had abdominal obesity. There was a significant relationship between obesity and diagnosis of GERD (p=0,001; OR =2,799; CI95% = 1,545-5,069). In contrast, there were no significant relationship between overweight and diagnosis of GERD. There were also no significant relationship between abdominal obesity and diagnosis of GERD. Obesity has a significant association with the diagnosis of GERD, but the absence of an association between overweight and diagnosis of GERD implies that increased BMI is not an independent risk factor in diagnosis of GERD.
Pharmacogenetics of Metformin
Authors: Joneri Alrahman
Published: November 2021

Hyperglycemia is a medical condition in which an increase in glucose levels in the blood exceeds normal limits. Hyperglycemia is one of the typical signs of diabetes mellitus (DM). The World Health Organization (WHO) predicts an increase in the number of people with DM which is a global health threat. Diabetes is the leading cause of kidney failure, and the leading cause of heart disease and stroke, in adults. Metformin, which is a biguanide group, is recommended by the American Diabetes Association (ADA) and the European Association for the Study of Diabetes as the first-line oral therapy for DM and is the most widely used oral medication worldwide. Metformin can also increase peripheral glucose utilization and ultimately decrease the production of fatty acids and triglycerides. Some of the individual differences that underlie the variation in response to metformin.
Application of Wetland-Based Entrepreneurship Orientation and Entrepreneurial Competence to Increase MSME Income in Wetlands
Authors: Anisah Hastin Umi , Isnawati  , Rifqi Novriyandana  , Muchammad Yusup
Published: November 2021

This study aims to determine and analyze the application of wetland-basedentrepreneurial orientation and entrepreneurial competence to increase MSMEincome. With the increase in the income of MSMEs, it is expected to improve thewelfare of MSMEs. Quantitative research method used in this research with PLSanalysis technique. As for the long term, MSME actors, in this case "Nipah Leaf"craftsmen, can have entrepreneurial competence so that they can increase theincome of MSME actors. The expected result is an academic justification for therole of wetland-based entrepreneurial orientation and entrepreneurialcompetence in increasing MSME income. The results of this study are expectedto be a policy consideration taken by the South Kalimantan Regional Governmentas a program to increase MSME income. The results of the research are alsoexpected to be able to advocate for the craftsmen of "Daun Nipah" to have anentrepreneurial orientation based on wetlands and entrepreneurial competence.
Insomnia and Depression - Bidirectional Cause and Effect: A Literature Review
Authors: Febrianto Yohanes
Published: November 2021

Insomnia is a health problem that is very often experienced by patients and can have an impact on the emergence of psychiatric problems, such as depression. On the other hand, patients with depression may develop insomnia during this phase of the illness. This shows that there is a bi-directional relationship that must be described in order to understand the diagnosis and management of the two cases. Through the review of this article, a theoretical review of the relationship between the two in general and theoretical in order to understand each aspect is presented because the management of the two is closely related to each other.
Atopinio dermatito sąsajos su filagrino geno mutacija bei vitaminu D. Literatūros apžvalga
Authors: Briedė Kamilija , Dimgailaitė Rūta , Valiukevičienė Skaidra
Published: November 2021

Atopinis dermatitas (AD) – tai lėtinė uždegiminė odos liga, kuriai būdingas stiprus odos niežėjimas, sausumas, ligai paūmėjus, pūslelės, edema bei šašai. Šio straipsnio tikslas – apžvelgti AD, vitamino D ir filagrino mutacijos sąsajas, kurios yra reikšmingos ligos patogenezei. Metodika. Literatūros apžvalga parengta remiantis „PubMed“ duomenų bazės mokslinių straipsnių atranka pagal reikšminius žodžius: atopic dermatitis, filaggrin gene mutation, vitamin D receptors. Naudoti tokie įtraukimo kriterijai: klinikinių tyrimų rezultatų straipsniai, publikacijos anglų kalba, publikacijos ne senesnės nei 10 metų. Rezultatai. Dažniausios FLG mutacijos yra R501X ir 2282del4 ir su jomis nustatyta sąsaja tarp AD ligos eigos sunkumo. Skirtingos FLG geno mutacijos, susijusios su pacientų rase, AD rizikos veiksniais ir asmens odos mikrobiotos savybėmis. Vitaminas D veikia per keratinocitų vitamino D receptorius (VDR). VDR genų (ApaI, BsmI, FokI TaqI) polimorfizmas reguliuoja odos keratinocitų homeostazę ir epidermio barjerinę funkciją. BsmI geno turėjimas padidina riziką susirgti AD. Išvados. Atvejo ir kontrolės tyrimų duomenimis, sergantieji sunkios eigos AD dažniau turi VDR geno polimorfizmą ir FLG mutacijas priklausomai nuo rasės ir aplinkos veiksnių. Apie tai tyrimų rezultatų Baltijos šalyse nėra.
Explosionsschutzkonzepte für magnetgekuppelte Kreiselpumpen
Authors: Beck Matthias , Hesener Ute
Published: November 2021

Im vorliegenden Artikel werden Beispiele für Explosionsschutzkonzepte an magnetgekuppelten Kreiselpumpen unter Berücksichtigung des Betriebskonzeptes entsprechend TRGS 722 vorgestellt. Magnetgekuppelte Kreiselpumpen werden seitens des Herstellers für den Einsatz in explosionsgefährdeten Bereichen als Geräte entsprechend der RL 2014/34/EU in Verkehr gebracht. Die angegebene Gerätekategorie bezieht sich in der Regel auf das Äußere der Pumpe. Das Innere von Kreiselpumpen erfüllt üblicherweise keine Kategorieanforderungen. In der Betriebsanleitung werden daher Randbedingungen für die bestimmungsgemäße Verwendung und den sicheren Betrieb angegeben, so dass bei Beachtung dieser Randbedingungen im Inneren nicht mit dem Auftreten gefährlicher explosionsfähiger Atmosphäre zu rechnen ist. Die Einhaltung dieser Randbedingungen und die Festlegung der dazu ggf. erforderlichen Explosionsschutzmaßnahmen auf der Prozessseite erfolgen im Rahmen der Gefährdungsbeurteilung durch den Arbeitgeber (Nutzer der Pumpe).
Verleihung des deutschen Arbeitsschutzpreises 2021
Authors: Hilse Annika
Published: November 2021

Im Oktober wurde auf der A+A 2021 der deutsche Arbeitsschutzpreis verliehen. Für vielfältige und innovative Ideen zur Umsetzung des Arbeitsschutzes wurden in den Kategorien „strategisch“, „betrieblich“, „kulturell“, „persönlich“ und die Kategorie „Newcomer“ preisgekrönt, ganz unabhängig von Betriebsgröße und Branche. Die Veranstaltung wurde von Spiegel-TV Moderatorin Corinna Lampadius moderiert.
Competencias Digitales de profesionales que inician su carrera universitaria como docentes.
Authors: Machado Infante Erika Coromoto
Published: November 2021

Este estudio trata sobre el uso de las competencias digitales por  profesionales que inician su carrera como docentes universitarios, cursantes del Diplomado de Formación Integral para el Docente de la Universidad Central de Venezuela (Aletheia). Es una investigación cuantitativa, descriptiva, participaron 89 profesores de la novena (2018-2019) y décima cohortes (2019-2020) del diplomado. Los datos fueron recogidos a través de un cuestionario en línea. Su análisis mostró que estos profesionales usan en un nivel básico e intermedio las competencias digitales distribuidas en las áreas de Información y alfabetización informacional, Comunicación y colaboración, Creación de contenido digital, Seguridad y Resolución de problemas de las competencias digitales. Utilizan el correo electrónico como una herramienta frecuente para los procesos de comunicación y manejan las herramientas tecnológicas disponibles en la universidad (Campus Virtual, Biblioteca Virtual y Repositorio Institucional Saber UCV). Con estos resultados se podría sustentar el diseño de un plan de formación y capacitación dirigido a mejorar, actualizar y desarrollar competencias tecnológicas que faciliten la labor docente, optimicen los recursos de la universidad y beneficien a la  población estudiantil. Palabras clave: competencias digitales, docentes universitarios, tecnologías de la información y comunicación, capacitación, formación docente, praxis docente…
La influencia del pensamiento pedagógico socialista de Antonio Gramsci y su concepción de la educación
Authors: SANTOS DIEGO MARLON , DEMIZU FABIANA SILVA BOTTA
Published: November 2021

El tema de este artículo es el estudio de los principios educativos de Antonio Gramsci (1891-1937), cuyo objetivo principal es el análisis de su contribución al proceso educativo. Su teoría se basa en el pensamiento marxista, que considera los orígenes materiales e históricos presentes en la lucha de clases relacionados con una visión antagónica que enfatiza la valorización de la lucha de las luchas de clase proletarias contra la explotación burguesa. Su propuesta educativa es la escuela unitaria, en la que todos tendrían la misma educación y enseñanza, lo que conduciría a los estudiantes a un grado de autonomía y conocimiento, lo que los convertiría en una conciencia histórica y política presente en el mundo del trabajo y la vida social. Al reflexionar sobre las consecuencias del marxismo, Gramsci señala que la sociedad se convierte en un agente de su propia transformación, imponiendo la pregunta hegemónica, un concepto fundamental en su pensamiento. Se concluye que la educación en este proceso se vuelve primordial en la filosofía de Antonio Gramsci, identificando la estructura por la cual se organiza la sociedad, mediando estrategias que facilitan la identificación de los límites y las desigualdades presentes en nuestra sociedad. Por lo tanto, Gramsci relaciona la teoría marxista en la búsqueda de una praxis transformadora, y basa sus ideas en la formación de una sociedad cuyas luchas teóricas y prácticas buscan crear un nuevo pensamiento filosófico y político capaz de favorecer la superación del poder y el poder. dominación del mundo capitalista.
La Enseñanza Secundaria brasileña y la cuestión de la dualidad escolar
Authors: Mendonça Caroline de Lima , Favaro Neide de Almeida Lança Galvão , Semzezem Priscila , Pizoli Rita de Cássia
Published: November 2021

Las reformas educativas brasileñas emprendidas desde la década de 1990, y la más reciente Reforma de la Enseñanza Secundaria, de 2017, requieren análisis críticos que puedan contribuir para aclarar intenciones imbuidas en ese proceso. Tales intenciones no son visibles en su apariencia, y demandan estudios sobre las relaciones sociales capitalistas. Entre las cuestiones educativas que se despegan hoy en día, la dualidad de la Enseñanza Secundaria ha sido un tema que aparece en varias investigaciones en el ámbito de la perspectiva crítica. En ese sentido, este estudio tiene el objetivo de analizar la cuestión de la dualidad en la Enseñanza Secundaria brasileña y en sus políticas educativas, comprendiendo el período de la década de 1990 adelante, considerando su vinculación con la sociabilidad del capital. Se trata de una investigación bibliográfica y cualitativa, anclada en marco teórico-metodológico del materialismo histórico. En síntesis, el estudio demostró que la dualidad escolar solamente tiene sentido se dirigida para la desigualdad social estructurante en las relaciones capitalistas, reflejada en las reformas educativas y en la Enseñanza Secundaria, pues que es producto de la organización social que tiene como matriz la propiedad privada.
KÜRYEREL (GLOKAL) LİDERLİK: EĞİTİM BAĞLAMINDA SİSTEMATİK BİR ALANYAZIN TARAMASI
Authors: KORKMAZ Celalettin
Published: November 2021

Günümüz yönetim anlayışında gelişim ve değişmeler ile yenilikleri örgütlerine kanalize edebilen, bu değişim sürecini görebilen liderlere gereksinim duyulmaktadır. Bu açıdan önemini hiç yitirmeyen liderlik kavramı üzerine çalışmalar süreğen olup küreselleşen dünyada günümüz eğitim liderliği bağlamında glokal liderlik önem kazanmaktadır. Glokal “Küryerel” kavramı, “küresel düşünüp yerel hareket etmek” anlamında olup yöneticilerin küryerel davranabilme özelliği “glokal liderlik” kavramı ile anlam kazanmaktadır. Glokal bir eğitim liderliği için eğitim kurumlarının dünyaya açılması gereklidir. Küresel gelişmeler, eğitimde yerel anlayışı etkilerken, yerel gelişmeler, küresel eğitim araştırmalarına katkıda bulunur. Eğitim yöneticileri bulundukları çağın gereklilikleri doğrultusunda değişikliklere uyum sağlayarak kendilerini yenilemeli ve liderlik özellikleri göstermelidirler. Liderlik bir etkileme süreci olarak amaçlara ulaşmayı gerektirir.
OKUL MÜDÜRLERİNİN DEMOKRATİK TUTUMLARININ ÖĞRETMENLERİN ÖRGÜTSEL GÜVEN ALGILARI İLE İLİŞKİSİ
Authors: GÜNDÜZ Yüksel , SARAÇ Günay
Published: November 2021

Bu çalışmada okul müdürlerinin demokratik tutumları ile öğretmenlerin örgütsel güven algıları arasındaki ilişkinin tespit edilmesi amaçlanmıştır. Araştırma, ilişkisel tarama modeli ile gerçekleştirilmiştir. 2017–2018 öğretim yılında Artvin merkez, Hopa ve Arhavi ilçelerindeki okullarda çalışan 1043 öğretmen çalışmanın evrenini; örneklemini ise evrenden seçkisiz örneklem yoluyla belirlenmiş 439 öğretmen oluşturmaktadır. Araştırmanın verilerini toplamak için Demokratik Tutum Ölçeği ve Örgütsel Güven Ölçeği kullanılmıştır. Öğretmenler okul müdürlerinin “çoğu zaman” demokratik tutum sergilediklerini belirtmişlerdir. Öğretmenlerin algılarına göre örgütsel güven düzeyi ölçek genelinde ve tüm boyutlarda ‘‘çoğunlukla’’ düzeyindedir. Demokratik tutum değişkeni, örgütsel güven toplam puanları ve meslektaşlara güven, paydaşlara güven, yöneticiye güven boyutları ile pozitif yönde yüksek düzeyde anlamlı bir ilişki vermektedir. Okul müdürlerinin demokratik tutumları öğretmenlerin örgütsel güven algılarının anlamlı bir yordayıcısıdır.
Acupuncture and related therapies for carpal tunnel syndrome: A protocol for systematic review and Bayesian network meta-analysis
Authors:   Department of Neurobiology and Acupuncture Research, the Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province., Bian Zhiyuan , Yu Jie , Tu Mingqi , Liao Binjun , Huang Jingmei , Jiang Yongliang , Fang Jianqiao
Published: November 2021

Review question / Objective: We aim to compare the efficacy and safety of different acupuncture and related therapies for carpal tunnel syndrome (CTS) using systematic review and network meta-analysis (NMA). Condition being studied: CTS is a symptomatic condition caused by compression of the median nerve within the carpal tunnel. Patients with CTS typically report paresthesia or pain in distribution of median nerve distal to the wrist. Diverse non-surgical treatments and surgical decompression have been used in the management of CTS. Acupuncture, a prominent component of traditional Chinese medicine (TCM), has also been practiced when treating CTS as a complementary therapy. However, the relative treatment effects of different acupuncture methods for CTS are unclear.
High Mass-Ratio Binary Population in Open Clusters: Segregation of Early Type Binaries and an Increasing Binary Fraction with Mass
Authors: Jadhav Vikrant V. , Roy Kaustubh , Joshi Naman , Subramaniam Annapurni
Published: November 2021

Binary stars play a vital role in astrophysical research, as a good fraction of stars are in binaries. Binary fraction (BF) is known to change with stellar mass in the Galactic field, but such studies in clusters require binary identification and membership information. Here, we estimate the total and spectral-type high-mass-ratio (HMR) BF (f
0.6) in 23 open clusters using unresolved binaries in color–magnitude diagrams using Gaia DR2 data. We introduce the segregation index (




) parameter to trace mass segregation of HMR (total and mass) binaries and the reference population. This study finds that in open clusters, (1) HMR BF for the mass range 0.4–3.6 M
⊙ (early M to late B-type stars) has a range of 0.12–0.38 with a peak at 0.12–0.20; (2) older clusters have a relatively higher HMR BF; (3) the mass-ratio distribution is unlikely to be a flat distribution and BF (total) ∼(1.5–2.5) × f
0.6; (4) a decreasing BF (total) from late B to K-type stars, in agreement with the Galactic field stars; (5) older clusters show radial segregation of HMR binaries; (6) B-type and A–F type HMR binaries show radial segregation in some young clusters suggesting a primordial origin. This study will constrain the initial conditions and identify the major mechanisms that regulate binary formation in clusters. Primordial segregation of HMR binaries could result from massive clumps spatially segregated in the collapse phase of the molecular cloud.
A Uniform Search for Nearby Planetary Companions to Hot Jupiters in TESS Data Reveals Hot Jupiters Are Still Lonely
Authors: Hord Benjamin J. , Colón Knicole D. , Kostov Veselin , Galgano Brianna , Ricker George R. , Vanderspek Roland , Seager S. , Winn Joshua N. , Jenkins Jon M. , Barclay Thomas , Caldwell Douglas A. , Essack Zahra , Fausnaugh Michael , Guerrero Natalia M. , Wohler Bill
Published: November 2021

We present the results of a uniform search for additional planets around all stars with confirmed hot Jupiters observed by the Transiting Exoplanet Survey Satellite (TESS) in its Cycle 1 survey of the southern ecliptic hemisphere. Our search comprises 184 total planetary systems with confirmed hot Jupiters with R

p
> 8 R
⊕ and orbital period <10 days. The Transit Least Squares algorithm was utilized to search for periodic signals that may have been missed by other planet search pipelines. While we recovered 169 of these confirmed hot Jupiters, our search yielded no new statistically validated planetary candidates in the parameter space searched (P < 14 days). A lack of planet candidates nearby hot Jupiters in the TESS data supports results from previous transit searches of each individual system, now down to the photometric precision of TESS. This is consistent with expectations from a high-eccentricity migration formation scenario, but additional formation indicators are needed for definitive confirmation. We injected transit signals into the light curves of the hot Jupiter sample to probe the pipeline’s sensitivity to the target parameter space, finding a dependence proportional to

R

p

2.32

P

−
0.88

for planets within 0.3 ≤ R

p
≤ 4 R
⊕ and 1 ≤ P ≤ 14 days. A statistical analysis accounting for this sensitivity provides a median and 90% confidence interval of

7.3

−
7.3

+
15.2

%

for the rate of hot Jupiters with nearby companions in this target parameter space. This study demonstrates how TESS uniquely enables comprehensive searches for nearby planetary companions to nearly all the known hot Jupiters.
Merger Histories and Environments of Dwarf AGN in IllustrisTNG
Authors: Kristensen Mikkel Theiss , Pimbblet Kevin A. , Gibson Brad K. , Penny Samantha J. , Koudmani Sophie
Published: November 2021

The relationship between active galactic nuclei (AGN) activity and environment has been long discussed, but it is unclear if these relations extend into the dwarf galaxy mass regime—in part due to the limits in both observations and simulations. We aim to investigate if the merger histories and environments are significantly different between AGN and non-AGN dwarf galaxies in cosmological simulations, which may be indicative of the importance of these for AGN activity in dwarf galaxies, and whether these results are in line with observations. Using the IllustrisTNG flagship TNG100-1 run, 6771 dwarf galaxies are found with 3863 (∼57%) having some level of AGN activity. In order to quantify environment, two measures are used: (1) the distance to a galaxy’s 10th nearest neighbor at six redshifts and (2) the time since last merger for three different minimum merger mass ratios. A similar analysis is run on TNG50-1 and Illustris-1 to test for the robustness of the findings. Both measures yield significantly different distributions between AGN and non-AGN galaxies; more non-AGN than AGN galaxies have long term residence in dense environments, while recent (≤4 Gyr) minor mergers are more common for intermediate AGN activity. While no statements are made about the micro or macrophysics from these results, it is nevertheless indicative of a non-negligible role of mergers and environments.
The uGMRT Observations of Three New Gigahertz-peaked Spectra Pulsars
Authors: Rożko K. , Basu R. , Kijak J. , Lewandowski W.
Published: November 2021

Using the Giant Metrewave Radio Telescope, we report the detailed spectral measurements over a wide frequency range of three pulsars (J1741−3016, J1757−2223, and J1845−0743), which allow us to identify them as new gigahertz-peaked spectra pulsars. Our results indicate that their spectra show turnovers at the frequencies of 620 MHz, 640 MHz, and 650 MHz, respectively. Our analysis proves that wideband observations improve estimations of spectral nature using a free–free thermal absorption model, and thus allow for a more accurate approximation of the maximum energy in the spectrum. While there is no evidence as yet that these objects are associated with a supernova remnant or pulsar wind nebula, they will make good targets when looking for interesting environments in the future, or when conducting more sensitive sky surveys.
The Harmonic Component of the Millihertz Quasi-periodic Oscillations in 4U 1636–53
Authors: Fei Zhenyan , Lyu Ming , Méndez Mariano , Altamirano D. , Zhang Guobao , Mancuso G. C. , Xiang Fu-Yuan , Yang X. J.
Published: November 2021

We studied the harmonics of the millihertz quasi-periodic oscillations (mHz QPOs) in the neutron star low-mass X-ray binary 4U 1636–53 using the Rossi X-ray Timing Explorer observations. We detected the harmonics of the mHz QPOs in 73 data intervals, with most of them in the transitional spectra state. We found that the ratio between the rms amplitude of the harmonic and that of the fundamental remains constant in a wide range of the fundamental frequency. More importantly, we studied, for the first time, the rms amplitude of the harmonics versus energy in 4U 1636–53 in the 2–5 keV range. We found that the rms amplitude of both the harmonic and the fundamental shows a decreasing trend as the energy increases, which is different from the behaviors reported in QPOs in certain black hole systems. Furthermore, our results suggest that not all observations with mHz QPOs have the harmonic component, although the reason behind this is still unclear.
A Novel Framework for Modeling Weakly Lensing Shear Using Kinematics and Imaging at Moderate Redshift
Authors: DiGiorgio Brian , Bundy Kevin , Westfall Kyle B. , Leauthaud Alexie , Stark David
Published: November 2021

Kinematic weak lensing describes the distortion of a galaxy’s projected velocity field due to lensing shear, an effect recently reported for the first time by Gurri et al. based on a sample of 18 galaxies at z ∼ 0.1. In this paper, we develop a new formalism that combines the shape information from imaging surveys with the kinematic information from resolved spectroscopy to better constrain the lensing distortion of source galaxies and to potentially address systematic errors that affect conventional weak-lensing analyses. Using a Bayesian forward model applied to mock galaxy observations, we model distortions in the source galaxy’s velocity field simultaneously with the apparent shear-induced offset between the kinematic and photometric major axes. We show that this combination dramatically reduces the statistical uncertainty on the inferred shear, yielding statistical error gains of a factor of 2–6 compared to kinematics alone. While we have not accounted for errors from intrinsic kinematic irregularities, our approach opens kinematic lensing studies to higher redshifts where resolved spectroscopy is more challenging. For example, we show that ground-based integral-field spectroscopy of background galaxies at z ∼ 0.7 can deliver gravitational shear measurements with signal-to-noise ratio of ∼1 per source galaxy at 1 arcminute separations from a galaxy cluster at z ∼ 0.3. This suggests that even modest samples observed with existing instruments could deliver improved galaxy cluster mass measurements and well-sampled probes of their halo mass profiles to large radii.
A new cryptic arboreal species of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from the uplands of western Thailand
Authors: Grismer L. Lee , Suwannapoom Chatmongkon , Pawangkhanant Parinya , Nazarov Roman A. , Yushchenko Platon V. , Naiduangchan Mali , Le Minh Duc , Luu Vinh Quang , Poyarkov Nikolay A.
Published: November 2021

The first integrative taxonomic analysis of the Cyrtodactylus brevipalmatus group of Southeast Asia recovered two newly discovered populations from the Tenasserim Mountains in Suan Phueng District, Ratchaburi Province, Thailand as a new species described here as C. rukhadeva sp. nov. Based on 1397 base pairs of the mitochondrial gene NADH dehydrogenase subunit 2 (ND2), C. rukhadeva sp. nov. is the well-supported sister species to a clade containing three undescribed species, C. ngati, and C. cf. interdigitalis with a large uncorrected pairwise sequence divergence from other species in the brevipalmatus group ranging from 15.4–22.1%. Cyrtodactylus elok and C. brevipalmatus are recovered as poorly supported sister species and the well-supported sister lineage to the remainder of the brevipalmatus group. Cyrtodactylus rukhadeva sp. nov. is putatively diagnosable on the basis of a number of meristic characters and easily separated from the remaining species of the brevipalmatus group by a number of discrete morphological characters as well as its statistically significant wide separation in multivariate morphospace. The discovery of C. rukhadeva sp. nov. continues to underscore the unrealized herpetological diversity in the upland forests of the Tenasserim Mountains and that additional field work will undoubtedly result in the discovery of additional new species.
Un réexamen de la dynamique de pauvreté au Niger : une approche par les échelles d’équivalence
Authors: Hamadou Daouda Youssoufou
Published: November 2021

Cet article utilise la méthode des échelles d’équivalence pour corriger les estimations officielles de la pauvreté au Niger issues des données d’enquête de ménages. L’effet des échelles d’équivalence a été de rehausser les niveaux de pauvreté, malgré la tendance à la baisse de la dynamique de la pauvreté entre 2011 et 2014. Les tests de dominance stochastique réalisés confirment cette tendance. Par ailleurs, les résultats montrent que les taux de pauvreté sont très sensibles aux variations des dépenses de consommation dans les zones agroécologiques. Les bonnes récoltes peuvent entraîner une réduction rapide de la pauvreté, tandis que les récoltes médiocres et les chocs exogènes ont un impact négatif sur le bien-être. La volatilité du secteur agricole et l’exposition des ménages aux chocs constituent ainsi des déterminants majeurs des changements de la pauvreté. Enfin, les ménages dirigés par des femmes présentent une forte vulnérabilité tant sur le marché du travail que dans la gestion des familles dont elles ont la charge. Cette situation appelle l’attention des pouvoirs publics de mieux intégrer l’aspect genre dans la lutte contre la pauvreté, en renforçant notamment leur capacité d’accès aux ressources financières et institutionnelles. Codes JEL: I31, I32, R12, O55.
Supervision et Développement du Pouvoir d’Agir des Personnes et des Collectivités
Authors: Defert Fabienne , Giroux Alain
Published: November 2021

Les auteurs abordent leurs expériences et réflexions de superviseurs sous l’angle du Développement du Pouvoir d’Agir des Personnes et des Collectivités et présentent leur mise en pratique de la supervision dans des contextes différents, celui du Québec et celui de l’Europe. Ils partagent la même posture celle de passeur afin de favoriser l’émergence de professionnels réflexifs.
Européanisation, désengagement ou déseuropéanisation ?
Authors: Piquet Agathe
Published: November 2021

À partir d’une étude de cas sur la coopération policière, cet article met en lumière la complexité des trajectoires post-Brexit des politiques publiques britanniques et ce faisant contribue au renouvellement en cours de l’agenda de recherche sur l’européanisation. Alors que les discours politiques et les arguments de campagne mobilisés en faveur du départ britannique laissaient supposer un éloignement clair de l’Union européenne voire un démantèlement de l’action publique préalablement européanisée, cette contribution permet de saisir les (non-)changements induits par le Brexit dans certains secteurs d’action publique. En nous fondant sur une série d’entretiens et une analyse documentaire, nous démontrons que cet événement sans précédent ne serait pas nécessairement synonyme de discontinuité ou de changement, ce que les concepts de déseuropéanisation et de désengagement visent à saisir. Nous explorons dans cette contribution le poids joué par les dynamiques préexistantes d’européanisation (non seulement leur degré, mais également leurs modalités, leur nature multidirectionnelle en particulier) dans le maintien d’ajustements mutuels entre l’Union européenne et le Royaume-Uni.
Étudier les interactions entre robots et acteurs sociaux
Authors: Rosental Claude
Published: November 2021

Cet article propose plusieurs pistes de recherche pour explorer un phénomène massif : la prolifération des interactions humains-robots dans les sociétés industrielles. La première consiste à étudier la diversité des rapports et des mises en rapport entre humains et robots, qui ne se réduisent pas en général à des « coopérations ». La deuxième a trait au cadre d’analyse. L’adoption d’une échelle temporelle d’observation longue est suggérée, ainsi que l’étude d’interactions avec des acteurs sociaux à part entière, qu’il s’agisse d’individus ou de groupes, plutôt qu’avec des « humains » ou des « sujets » interchangeables. Enfin, les liens parfois ténus ou réducteurs des robots avec la catégorie « intelligence artificielle » impliquent de trouver d’autres entrées pour analyser ces interactions, telles que l’exploration des rapports des acteurs sociaux avec des agents conversationnels.
Vers une couverture sanitaire universelle au Sénégal
Authors: Awawda Sameera , Ventelou Bruno , Abu-Zaineh Mohammad
Published: November 2021

Cette étude a pour objectif d’évaluer différents scénarios de financement de la couverture sanitaire universelle (CSU) au Sénégal. La méthode de micro-simulation utilisée permet d’examiner l’impact des modes de financement de la CSU sur les consommations des ménages ainsi que sur les recettes et les dépenses publiques. Les résultats montrent que l’expansion de la CSU à l’ensemble de la population associée à une réduction des coûts directs des soins augmenterait l’accès aux services de santé des ménages. La démarche méthodologique proposée ici permet de calculer le coût financier pour couvrir l’ensemble de la population et les services de soins de santé, et donc d’évaluer ex-ante la faisabilité des politiques publiques visant à favoriser la mise en œuvre d’une CSU.
L’avènement de la couverture sanitaire universelle dans la gouvernance globale
Authors: Fillol Amandine , Gautier Lara , Ridde Valéry
Published: November 2021

Le contexte de la santé mondiale est propice au processus de co-production des connaissances scientifiques et d’un ordre social et économique du fait de la proximité des différents acteurs (recherche, politique, expertise). Ils sont encouragés à se rapprocher afin de produire des connaissances pour l’action et favoriser les politiques informées par les données probantes. Cela donne lieu à une organisation « centre-périphéries » qui favorise la diffusion d’idées d’un centre économiquement intégré à des périphéries dépendantes de ce centre. Ainsi, nous voyons à travers la fabrique de la couverture sanitaire universelle que sous couvert d’un objectif considéré comme dépolitisé et technocratique pour atteindre la justice sociale, ce sont des considérations marchandes de la santé qui sont véhiculées.
Dynamic transitions for the S-K-T competition system
Authors: Liu Ruikuan , Zhang Dongpei
Published: November 2021

This paper is concerned with dynamical transition for biological competition system modeled by the S-K-T equations. We study the dynamical behaviour of the S-K-T equations with two different boundary conditions. For the system under non-homogeneous Dirichlet boundary condition, we show that the system undergoes a mixed dynamic transition from the homogeneous state to steady state solutions when the bifurcation parameter cross the critical surface. For the system with Neumann boundary condition, we prove that the system undergoes a mixed dynamic transition, a jump transition and a continuous transition when the bifurcation parameter cross the critical number. Finally, two examples are provided to validate the effectiveness of the theoretical results.
Quadratic variation, models, applications and lessons
Authors: Madan Dilip B. , Wang King
Published: November 2021

Time changes of Brownian motion impose restrictive jump structures in the motion of asset prices. Quadratic variations also depart from time changes. Quadratic variation options are observed to have a nonlinear exposure to risk neutral skewness. Joint Laplace Fourier transforms for quadratic variation and the stock are developed. They are used to study the multiple of the cap strike over the variance swap quote attaining a given percentage price reduction for the capped variance swap. Market prices for out-of-the-money options on variance are observed to be above those delivered by the calibrated models. Bootstrapped data and simulated paths spaces are used to study the multiple of the dynamic hedge return desired by a quadratic variation contract. It is observed that the optimized hedge multiple in the bootstrapped data is near unity. Furthermore, more generally, it is exposures to negative cubic variations in path spaces that raise variance swap prices, lower hedge multiples, increase residual risk charges and gaps to the log contract hedge. A case can be made for both, the physical process being closer to a continuous time change of Brownian motion, while simultaneously risk neutrally this may not be the case. It is recognized that in the context of discrete time there are no issues related to equivalence of probabilities.
Information sharing in two-tier supply chains considering cost reduction effort and information leakage
Authors: Li Xiaomei , Liu Renjing , Hu Zhongquan , Dong Jiamin
Published: November 2021

This study investigates information sharing in two-tier supply chai-ns considering cost reduction effort and information leakage, with either upstream competition (system SC) or downstream competition (system RC). Results show that in system SC without information leakage, the retailer shares information with one supplier when suppliers are efficient in cost reduction, shares information with neither supplier when suppliers are inefficient in cost reduction, and shares information with two suppliers when suppliers are intermediate in cost reduction efficiency. nformation leakage won't affect the information sharing decisions of the retailer. In system RC with or without information leakage, both retailers share information with the supplier when the supplier is efficient in cost reduction and neither retailer shares information with the supplier when the supplier is inefficient in cost reduction. However, the threshold of cost reduction efficiency without information leakage is always lower than that with information leakage, which demonstrates that it is less likely for retailers to share information with information leakage. What's more, the two retailers choose the same information sharing strategies without information leakage but the opposite information sharing strategies with information leakage when the cost reduction efficiency is intermediate.
Magnetic confinement for the 2D axisymmetric relativistic Vlasov-Maxwell system in an annulus
Authors: Jang Jin Woo , Strain Robert M. , Wong Tak Kwong
Published: November 2021

Although the nuclear fusion process has received a great deal of attention in recent years, the amount of mathematical analysis that supports the stability of the system seems to be relatively insufficient. This paper deals with the mathematical analysis of the magnetic confinement of the plasma via kinetic equations. We prove the global wellposedness of the Vlasov-Maxwell system in a two-dimensional annulus when a huge (but finite-in-time) external magnetic potential is imposed near the boundary. We assume that the solution is axisymmetric. The authors hope that this work is a step towards a more generalized work on the three-dimensional Tokamak structure. The highlight of this work is the physical assumptions on the external magnetic potential well which remains finite within a finite time interval and from that, we prove that the plasma never touches the boundary. In addition, we provide a sufficient condition on the magnitude of the external magnetic potential to guarantee that the plasma is confined in an annulus of the desired thickness which is slightly larger than the initial support. Our method uses the cylindrical coordinate forms of the Vlasov-Maxwell system.
Coefficient functionals for a class of bounded turning functions related to modified sigmoid function
Authors: Khan Muhammad Ghaffar ,   Institute of Numerical Sciences, Kohat university of science and technology, Kohat, Pakistan, Cho Nak Eun , Shaba Timilehin Gideon , Ahmad Bakhtiar , Mashwani Wali Khan ,   Department of Applied Mathematics, Pukyong National University Busan 48513, Korea,   Department of Mathematics, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria,   Govt. Degree College Mardan, Mardan 23200, Pakistan
Published: November 2021

The main objective of the present article is to define the class of bounded turning functions associated with modified sigmoid function. Also we investigate and determine sharp results for the estimates of four initial coefficients, Fekete-Szegö functional, the second-order Hankel determinant, Zalcman conjucture and Krushkal inequality. Furthermore, we evaluate bounds of the third and fourth-order Hankel determinants for the class and for the 2-fold and 3-fold symmetric functions.
Tres diseños de medallas del pintor portugués Vieira Lusitano en la colección del Museo del Prado
Authors: Diez del Corral Corredoira Pilar
Published: November 2021

En la colección de dibujos dieciochescos del Museo Nacional del Prado se conservan tres sanguinas de reducidas dimensiones que representan diseños del anverso de tres medallas conmemorativas. Las tres piezas fueron catalogadas en su día como anónimas y datadas de forma general en siglo XVIII. El objetivo del presente artículo es establecer la autoría de estos folios a través de su estudio y comparación con otras piezas conservadas en colecciones portuguesas, al tiempo que se profundiza en la relación de su autor con su formación temprana dibujando glíptica romana. Asimismo, se propondrá una interpretación y datación de las sanguinas en el contexto de la producción como dibujante y grabador de su artífice, que no es otro que Francisco de Matos (1699-1783), más conocido como Vieira Lusitano.