bluuebunny/crossref_metadata_2025 huggingface dataset:
JADES Imaging of GN-z11: Revealing the Morphology and Environment of a Luminous Galaxy 430 Myr after the Big Bang
Authors: Tacchella Sandro , Eisenstein Daniel J. , Hainline Kevin , Johnson Benjamin D. , Baker William M. , Helton Jakob M. , Robertson Brant , Suess Katherine A. , Chen Zuyi , Nelson Erica , Puskás Dávid , Sun Fengwu , Alberts Stacey , Egami Eiichi , Hausen Ryan , Rieke George , Rieke Marcia , Shivaei Irene , Williams Christina C. , Willmer Christopher N. A. , Bunker Andrew , Cameron Alex J. , Carniani Stefano , Charlot Stephane , Curti Mirko , Curtis-Lake Emma , Looser Tobias J. , Maiolino Roberto , Maseda Michael V. , Rawle Tim , Rix Hans-Walter , Smit Renske , Übler Hannah , Willott Chris , Witstok Joris , Baum Stefi , Bhatawdekar Rachana , Boyett Kristan , Danhaive A. Lola , de Graaff Anna , Endsley Ryan , Ji Zhiyuan , Lyu Jianwei , Sandles Lester , Saxena Aayush , Scholtz Jan , Topping Michael W. , Whitler Lily
Published: July 2023

We present JWST NIRCam nine-band near-infrared imaging of the luminous z = 10.6 galaxy GN-z11 from the JWST Advanced Deep Extragalactic Survey of the GOODS-N field. We find a spectral energy distribution (SED) entirely consistent with the expected form of a high-redshift galaxy: a clear blue continuum from 1.5 to 4 μm with a complete dropout in F115W. The core of GN-z11 is extremely compact in JWST imaging. We analyze the image with a two-component model, using a point source and a Sérsic profile that fits to a half-light radius of 200 pc and an index n = 0.9. We find a low-surface-brightness haze about 0.″4 to the northeast of the galaxy, which is most likely a foreground object but might be a more extended component of GN-z11. At a spectroscopic redshift of 10.60 (Bunker et al. 2023), the comparison of the NIRCam F410M and F444W images spans the Balmer jump. From population-synthesis modeling, here assuming no light from an active galactic nucleus, we reproduce the SED of GN-z11, finding a stellar mass of ∼109
M
⊙, a star formation rate of ∼20 M
⊙ yr−1, and a young stellar age of ∼20 Myr. Since massive galaxies at high redshift are likely to be highly clustered, we search for faint neighbors of GN-z11, finding nine galaxies out to ∼5 comoving Mpc transverse with photometric redshifts consistent with z = 10.6, and a tenth more tentative dropout only 3″ away. This is consistent with GN-z11 being hosted by a massive dark-matter halo (≈8 × 1010
M
⊙), though lower halo masses cannot be ruled out.
FedSC: A federated learning algorithm based on client-side clustering
Authors: Wang Zhuang , Liu Renting , Xu Jie , Fu Yusheng
Published: July 2023

In traditional centralized machine learning frameworks, the consolidation of all data in a central data center for processing poses significant concerns related to data privacy breaches and data sharing complexities. In contrast, federated learning presents a privacy-preserving paradigm by training models on local devices, thus circumventing the need for data transfer. However, in the case of non-IID (non-independent and identically distributed) data distribution, the performance of federated learning will drop. Addressing this predicament, this study introduces the FedSC algorithm as a remedy. The FedSC algorithm initially partitions clients into clusters based on the distribution of their data types. Within each cluster, clients exhibit comparable local optimal solutions, thus facilitating the aggregation of a superior global model. Moreover, the global model trained by the previous cluster serves as the initial model parameter for subsequent clusters, enabling the incorporation of data contributions from each cluster to foster the development of an enhanced global model. Experimental results corroborate the superiority of the FedSC algorithm over alternative federated learning approaches, particularly in non-IID data distributions, thereby establishing its capacity to achieve heightened accuracy.
Experimental Validation of Vertical Lifting Capabilities of Circling Tethered Fixed Wing UAVs
Authors:   Universite de Sherbrooke, Chapdelaine Bruno , Rancourt David , Ledoux Guillaume
Published: July 2023

The Electric-Powered Reconfigurable Rotor VTOL Concept (EPR2) is a novel type of VTOL aircraft that uses tethered airplanes flying collaboratively along a near circular flight path to lift a payload. The objective of this paper is to experimentally assess the vertical lifting capabilities of a single tethered fixed wing aircraft flying along a circular flight path anchored to the ground using a small-scale testing platform. Results show that the airplane has the ability to lift up to 4 times its emtry weight with off-the-shelf components along an unoptimized flight path. This new concept also requires considerably less power than other conventional VTOL aircraft to lift the same payload, reaching a payload-to-power ratio of 13 grams per Watt. The maximum lifting capability and efficiency are then evaluated using a numerical model of the system in a constrained nonlinear multi-objective optimization function. It is shown that the same airframe with minimal modifications could lift up to 8 times its empty weight at a payload-to-power ratio of 26 grams per Watt.
Flight Dynamics Identification, Maneuverability, and Gust Tolerance of a Robotic Hummingbird in Hover
Authors:   Texas A&M University, Coleman David , Benedict Moble
Published: July 2023

This paper discusses an endeavor to experimentally identify the flight dynamics of the AVFL Hummingbird, and quantify its maneuverability and gust tolerance using a control theoretic framework. The AVFL hummingbird is a 62gram, truly biomimetic robotic hummingbird developed to understand and characterize hummingbird flight. It has a pair of biologically inspired, aeroelastically tailored wings flapping at 20Hz, and is fully hover capable. Additionally, like its biological counterpart, it utilizes wing kinematic modulation techniques for control and stability. The vehicle states were measured during targeted flight tests from which a linearized, state-space model was derived. The model contained damping aerodynamic coefficients, decoupled longitudinal, lateral and directional dynamics, as well as large control coefficients. The control theoretic framework, which quantifies the maximum controllable states of the system under unit inputs, was utilized to calculate the maximum gusts tolerable by the control system. The results showed exceptional gust tolerant capabilities. The maximum gusts tolerable were (1) longitudinal gust: 21.2 ft/s (6.4 m/s); (2) lateral gust: 17.7 ft/s (5.4 m/s); (3) lateral rotational gust: 149.8 rad/s; and (4) longitudinal rotational gust: 20.5 rad/s. These are much greater than comparable rotary-wing based systems. This study represents the first time the maneuverability and gust tolerance of a hummingbird-like system has been experimentally characterized, and has shown quantitatively the exceptional flight capabilities offered by biomimetic design and control.
Hydrogen Fuel Cell and Battery Hybrid Architecture for Range Extension of Electric VTOL (eVTOL) Aircraft
Authors:   University of Maryland, Ng Wanyi , Patil Mrinalgouda , Datta Anubhav
Published: July 2023

The objective of this paper is to study the impact of combining hydrogen fuel cells with lithium-ion batteries through an ideal power sharing architecture to mitigate the poor range and endurance of battery powered electric vertical takeoff and landing (eVTOL) aircraft. The benefits of combining the two sources is first demonstrated by a conceptual sizing of an electric tiltrotor for an urban air taxi mission of 75 mi cruise and 5 min hover. It is shown that an aircraft of 5000-6000 lb gross weight can carry a practical payload of 500 lb (2-3 seat) with present levels of battery specific energy (150 Wh/kg) if only a battery-fuel cell hybrid powerplant is used, combined in an ideal power sharing manner, as long as high burst C-rate batteries are available (4-10 C) for a limited duration (2.5 min). A powerplant using batteries alone can carry less than half the payload; fuel cells alone can not lift off the ground. The operation of such a parallel system is explained using systematic hardware testing and modeling and simulation. The concepts of unregulated and regulated power sharing architectures are described. A regulated architecture that can implement ideal power sharing is built-up in a step-by-step manner. It is found only two switches and three DC-to-DC converters are necessary, and if placed appropriately, are sufficient to achieve the desired power flow. The power system model is validated with test data and used to gain fundamental understanding of the power sharing architecture.
Jaunt: Design, Build, and Test of an eVTOL Aircraft for Urban Air Mobility
Authors:   Jaunt Air Mobility LLC, Stanzione Kaydon ,   Georgia Institute of Technology, Schrage Daniel ,   PRICE Systems LLC., Sirirojvisuth Apinut
Published: July 2023

Jaunt Air Mobility LLC is developing an all-electric Vertical Take-off and Landing (VTOL) aircraft suitable for Urban Air Mobility (UAM) and On-Demand Mobility (ODM) markets. Salient features of Jaunt include the quietest, safest, and most efficient hovering and cruise flight air vehicle than any other configuration suitable for UAM missions. Jaunt represents a Reduced Rotor Operating Speed Aircraft (ROSA™) with core technologies proven in over 250 hours of successful demonstration flights. Jaunt represents the metamorphosis of the best features available from helicopters and fixed-wing airplanes. ROSA™ technologies offers several innovative features that significantly reduce total noise. These include all-electric powertrain, 75% reduction in main rotor tip speed from hover to cruise flight, scimitar design propellers offering a 60% speed reduction from hover to cruise flight, and a tilting mast which provides efficient management of the resulting thrust vector. Jaunt represents flight-proven aircraft technologies that are superior to existing helicopters which are the gold standard in efficient Vertical Take-off and Landing (VTOL) aircraft.
It takes two to tango: a reply to our MMT critics*
Authors: Drumetz Françoise , Pfister Christian
Published: July 2023

We reply to the critics who contributed the other papers in the same issue of this journal. In the first part of the article, we indicate those remarks addressed to us, which we deem inappropriate to answer. The second part deals with the remarks we find useful to answer, which relate to money, monetary policy and central banking on the one hand, and to fiscal policy on the other hand. The third part recalls remarks we made in our previous publications and that our critics did not wish to consider, whereas this might have helped them in amending their theory. In the fourth part, we conclude that an opportunity to engage in a more fruitful debate may thus have been missed: indeed, it takes two to tango.
Polyphony of Forms in Mexican Cinema: the Author’s Style of Alfonso Cuarón
Authors: Rostotskaya L. V.
Published: July 2023

This article examines some of the distinctive features of the style of Alfonso Cuarón, one of the most prominent filmmakers of our time. A comparison of different periods of his work allows us to draw a conclusion about the diversity of artistic forms of his cinematography, which he himself calls «eclecticism». At the same time, the cultural analysis of the Mexican director’s filmography proves that his creative concept has always been related to the most essential aspects of life, imbued with existential philosophy motives, whereas his ingenious techniques only serve as a tool for their profound comprehension. The inexhaustible arsenal of professional methods and techniques, Cuarón’s commitment to experiment, as well as his insatiable creative passion combined with the author’s constant attention to the most crucial aspects of reality generate an incredible variety of cinema forms, creating a unique artistic structure, which is the author’s style of Alfonso Cuarón’s cinematography.
Sergei Diaghilev in Spain: New Themes, Images, Ballets
Authors: Kryazheva I. A.
Published: July 2023

Spain was a prominent destination on tours of Sergei Diaghilev's Ballets Russes. Numerous visits to this country, spanning the period from the mid-1910s to the mid-1920s, enriched Diaghilev's artistic horizons with new themes and images that resulted in the ballets: «Las Meninas», «The three-cornered hat», «Cuadro Flamenco». The history of the creation and staging of each ballet possesses its own characteristics; in each case, a unique artistic world is conceived, expressed in a modern language, and distinguished by its many facets and complex symbolism. In order to implement his new ideas, Diaghilev appealed to the leading artists of his time, namely Pablo Picasso, Josep Maria Sert, Leonid Myasin, Manuel de Falla, thanks to whose participation a holistic concept of each work arose, based on the unity of musical, plastic, and decorative ideas. The «Spanish» ballets were created during the transition period from naturalistic theatre, dominated by a coherent plot logic and a psychological representation of the characters, to conventional theatrical methods. The character and role of the artistic image change, acquiring widespread symbolic features. Stylization and conventionality become the main techniques when it comes to erecting a new theatrical model. A new image of the Spanish world is formed, breaking ties with the heritage of the romantic era and resorting to cultural archetypes. The ideas of Diaghilev's ballet fit organically into the mainstream of modernist experiments.
Geopolitics and The Role of The Church in Nationalism on Daily Basis in the 21st Century
Authors: Suhartono Fredric Novando , Novalina Martina , Samego Indria , Pasaribu Andri , Salcido Sidney
Published: July 2023

Through empirical knowledge, articles, papers, and a daily basis of field observation, this paper proposes an analysis of the current trend on how people usually have pride and a good sense of nationalism towards their nation. An overall analysis and observation of the grand scheme of things on how geopolitics might affect how people could have pride and a good sense of nationalism would be discussed. A thorough and general descriptive discussion on how to light up the nationalism spirit of those who don’t have pride and a good sense of nationalism would be exposed and applied. The application of discussion would be applied through the role of the church in enhancing and inspiring people in nationalism through the right sense of nationalism in both pride and understanding by following the 21st-century trend of behavior in advanced humanity. Advancing humanity and the right sense of nationalism are the keys to building a better future for a nation.
Initiating Discourse on Toraja Church Economic Theology: Role of Tongkonan in Forming and Developing Economic Theology in Toraja Church
Authors: Pasoloran Oktavianus , Sanderan Rannu , Pasulu Alpius
Published: July 2023

This research intends to initiate and formulate the economic theology of the Toraja Church based on a biblical view, and it is realized that it requires challenging and complex efforts. The field of Economics is vast and significant, and therefore, in the context of the Toraja Church, theology is inclined to aid economists in establishing an ethical, faith-based groundwork for the development of economics. The extensive scope of this inquiry has motivated the Toraja Church to initiate this investigation as a foundation for fostering sustainable research pertinent to the economic realm of Torajan population. This research carries out using a qualitative method. Primary data were collected by means of observations and interviews during various mini-tours and live-ins of field research. Both personal interviews and those in the form of tentative-by-the-run FGD were conducted. To support them, referential data were collected by literature review and documentation from various stakeholders. This study recognizes 1) God's mandate to organize the economy, 2) preferential options for the poor, and 3) economic empowerment as a responsible duty. However, in its fundamentals the Toraja Church should build its economic theology based on Biblical principles, taking consideration of its experience & history and the community’s socio-cultural context.
An SPSS Analysis of The Effects of a Smartphone Game
That Incorporates Learning
Authors: Nirmala Shivram Padmavat
Published: July 2023

A mobile game for smartphones with an educational purpose attempts to amuse players while simultaneously delivering educational information and encouraging the development of skills and expertise. In order to create an exciting and stimulating learning experience, these games work to combine fun and engagement with instructional components. Players can engage in game play elements and challenges inside these games that are intended to promote creativity, problem-solving, and learning. The educational material covers a wide range of academic topics, including maths, science, language study, history, geography, & critical thinking. Mobile learning games' ability to enhance education by actively involving students, promoting knowledge acquisition, and enhancing motivation is the main research emphasis. Research can look at how these games affect learning outcomes, what motivates involvement, how they can be customised, how they can transfer skills, how they can be assessed, and how they affect educational inequalities. Understanding these factors can help educators design evidence-based solutions and successfully integrate game-based learning techniques into classroom settings. For statistical analysis purposes, the software programme known as SPSS, or Statistical Package für Social Sciences, is widely used in a variety of fields, including business, research on markets, healthcare, and the social sciences. The IBM-developed statistical analysis tool SPSS provides a wide range of tools and approaches for managing, preparing, and analysing data. Using the extensive tools and capabilities offered by SPSS, researchers and analysts can successfully carry out tasks like data purification, manipulation of data, and data transformation.
Exploring Technology Competencies of Field-Based Teacher Educators
Authors:   Millersville University of Pennsylvania, Ibrahim Abdulsalami , Dreon, Jr. Oliver ,   Millersville University of Pennsylvania
Published: July 2023

Drawing on a sample of 124 cooperating teachers in four school districts, this study examined the Teacher Educator Technology Competencies (TETCs) of field-based teacher educators. While the study showed no significant differences in the TETCs possessed by participating cooperating teachers, it offers important considerations and implications for continuing research.
Teacher Candidtates Working with Digital Technologies to Support Multilingual Students in Asset-Based Ways
Authors:   University of North Florida, Lynch Megan E. , Bose Frances Nebus ,   The Pennsylvania State University, Lee May ,   The Pennsylvania State University
Published: July 2023

This article demonstrates how the digital technologies of video recordings and webcams in a virtual learning after school program made it possible for teacher candidates to practice and reflect on asset-based pedagogies for multilingual students. Implications to engage teacher candidates in asset-based pedagogies in virtual science and engineering programming are discussed. The authors invite teacher educators to consider how the potentials of video recordings and webcams can be extended to other content areas and in-person teaching.
The Introduction of Global Collaboration to Pre-Service Teachers: Training Future Global Change-Agents
Authors:   Saint Vincent College, Sams Aaron , Jones Lee Kenneth ,   St Johnsbury Academy Korea, Smith Walter ,   Texas Tech University
Published: July 2023

By participating in global projects, students learn to communicate, asynchronously or synchronously, through digital tools and media. The project in this article paired pre-service teachers in the United States with primary students, ages 8 to 10, in South Korea. The intent was to expose pre-service teachers to global collaboration projects, and to give them experience with the challenges that come with global collaboration so they can later support their own students in such endeavors. The project was evaluated through an open-ended survey for pre-service teachers (N=19) and results were coded according to the constructs of TPACK (technology, pedagogy, and content knowledge). Results showed that the most impactful aspects of the project were in the pedagogy and technology constructs. Surveys showed mostly positive (n=9) and mixed experiences (n=8) for pre-service teachers. Negative experiences were largely related to challenges with asynchronous collaboration. Future recommendations include developing companion lessons to precede this project, training teachers and students in techniques, expectations, and norms during non-face-to-face collaboration.
Proposed Strategy to Increase the Number of Digi Users from Customers of Pt Bank Pembangunan Daerah Jawa Barat Dan Banten, Tbk.
Authors:   School of Business Management, Institut Teknologi Bandung, Putra Gibraldi Radifan Pramana , Belgiawan Prawira Fajararindra ,   School of Business Management, Institut Teknologi Bandung
Published: July 2023

PT Bank Pembangunan Daerah Jawa Barat dan Banten, Tbk (BJB) is one of the largest regional development banks in Indonesia. One of the banking services offered by BJB is DIGI. DIGI is a mobile banking service provided by BJB for customers to access banking services provided by BJB through cell phones. Based on BJB’s annual report for 2022, the number of DIGI users in 2022 reached 849 thousand users. Even so, this number is still far away when compared to the number of accounts from BJB’s third party funds which reached 5.2 million in 2022. If we compare the number of DIGI users with the number of accounts from third party funds, the number of DIGI users is only 14.97 percent of the number of accounts from BJB’s third party funds. The purpose of this research is to increase the number of BJB customers who use DIGI. In this paper the author uses a mix method by mixing qualitative methods in the form of interviews with 10 customers and the BJB digital banking team and quantitative methods by distributing questionnaires to 230 BJB customers via google form. Smart PLS 3 is used to process data and test hypotheses that have been built based on the results of interviews and questionnaires from customers. The methods and hypotheses built in this study are based on the Unified Theory of Acceptance and Use of Technology proposed by Viswanath Venkatesh in 2003. Based on the results of the study, it was found that Performance Expectations and Effort Expectations affect a person’s intention to use DIGI. This study also found that Facilitating Conditions and customer intentions affect the likelihood of customers to apply DIGI in reality. Based on these findings and some internal and external analysis of the company, the author provides several strategies that can help BJB to increase the number of customers using DIGI using SWOT and TOWS tools. The strategies offered in this paper are building QRIS-based financial services in the DIGI application, collaborating with various e-commerce platforms by providing special payment services, building DIGI account activation services via mobile phones, and providing education to customers regarding the services and benefits of using DIGI.
Extraction and Native PAGE Separation of Phycobiliproteins from Some Cyanobacteria Collected from Their Natural Habitats
Authors:   Assistant Professor, Department of Botany, Sri Shankar College, Sasaram, A Constituent Unit of VKSU, Ara (Bihar), India, Shrivastava Dr. Alpana
Published: July 2023

Phycobiliproteins are a group of coloured proteins present in cyanobacteria and algae. They can be divided into three types based on their absorption spectra. These are phycocyanin, phycoerythrin and allophycocyanin. These pigment proteins are used as potential natural colorant in chewing gums, candies, soft drinks, dairy products and cosmetics like lipstick and eyeliners. They are also extensively commercialized for fluorescent applications in clinical immunological analysis. The phycobiliproteins from cyanobacteria have also been reported to have ant-cancerous, anti-inflammatory and antioxidant properties. In view of the increasing demand of these fluorescent pigments, it becomes important to find new species of cyanobacteria and exploit them for their phycobiliprotein content. In present work some commonly available cyanobacteria were collected from their natural habitats and analysed for their phycobiliprotein content. The extraction of phycobiliprotein was done in phosphate buffer and quantitative analysis of the pigment components was done. The study showed that all the cyanobacteria are the potential source of phycocyanin whereas phycoerythrin is significantly present in species of Lyngbya and Oscillatoria. The phycobiliprotein components were separated on Native PAGE which can be partially purified by electroelution. The percentage loss of phycobiliprotein content in stored cyanobacterial biomass for two months showed that phycoerythrin was more stable in Lyngbya and Oscillatoria as compared to the phycocyanin. The species of Scytonema showed good amount of phycocyanin content whereas allophycocyanin was significantly present and was stable in Aulosira sp.
The Role of Economic Resilience of Tourism Families during the Pandemic Covid-19
Authors:   Faculty of Economic and Business, Udayana University, Indonesia, Widiana I Nyoman Wahyu , Saskara Ida Ayu Nyoman ,   Faculty of Economic and Business, Udayana University, Indonesia, Urmila Dewi Made Heny ,   Faculty of Economic and Business, Udayana University, Indonesia, Yasa I.G.W. Murjana ,   Faculty of Economic and Business, Udayana University, Indonesia
Published: July 2023

The pandemic Covid-19 had an impact on the entire economy in Indonesia, one of which is the Province of Bali with the advantages of tourism destinations which have now experienced a decline in tourists due to the Covid-19 pandemic with the policy of closing international airports, adjusting regions and policies not to travel between regions. The tourism sector is the sector most affected by the pandemic Covid-19, an estimated 75 million jobs in the tourism sector have experienced shocks and the tourism industry is at risk of losing turnover of more than 2.1 trillion dollars. Domestic tourist visits have also decreased, Indonesian people are reluctant to travel, because they are worried about the impact of the co-19 pandemic. The pandemic Covid- 19 pandemic had a major impact on all aspects of life, especially the tourism sector due to difficulties in travel, cancellation of major events and reluctance to travel internationally and domestically. The economic resilience of tourism actors in Badung Regency, Bali Province has now become a serious problem, which only relies on one big sector, namely tourism. Badung Regency, Bali Province only relies on foreign visits, so that when the international airport is closed, people working in the tourism sector experience a decrease in economic resilience, starting from decreased income to several tourist attractions and tourism businesses in Badung Regency, Bali Province being closed. The research technique used is the literature review method, which uses various related scientific journals, especially those that discuss economic resilience during the pandemic Covid-19, to collect the information needed for research. The findings of this study indicate that the role of family resilience in tourism actors during a pandemic supports the survival of tourism actors. Economic resilience relates to the maintained ability of the economy to recover from the effects of adverse shocks. Surviving the downturn is not enough. Efforts are needed to find out the strategies used to overcome the impact of these shocks.
Behavioural Teratogenic Effect of Cimetidine on the Offspring’s of Albino Rats
Authors:   Department of Zoology, Faculty of Science, Adamawa State University, University, Mubi, Nigeria, A. Elihu, , T Benjamin, ,   Department of Zoology, Faculty of Science, Adamawa State University, University, Mubi, Nigeria, I Toma, ,   Department of Biochemistry, Faculty of Science, Adamawa State University, Mubi, Nigeria
Published: July 2023

The aim of this research was to determine the Behovioural teratogenic effects of cimetidine on the offspring’s of Albino Rats. It was designed to test if cimetidine will have effect on offspring born to mothers who took cimetidine during gestation period. Sample of this study comprises of 3 pregnant albino rats which were randomly assigned into three (3) groups, grove A B and C. group A is the control group that did not receive any treatment while group B and C were the experimental group that received the experimental treatment. The experimental group B was given 2ml of cimetidine injection with cannula two times daily i.e.in the morning and in the evening. The experimental group C was given 2ml of cimetidine injection with a cannula daily i.e. 2ml of cimetidine injection in the morning and in the evening throughout their gestation period. 19 pups littered by the 3 female albino rats of both the control group and experimental groups were also used as the subject in the study. Three hypothesis were formulated and tested in this study, Hypothesis one was there will be a significant difference between the offspring’s of albino rats who were injected with cimetidine to those born to mothers who were not injected with cimetidine on a T-maze test. This was confirmed [DF (2,9)=33.96,P<.01]. Hypothesis two, was that offspring’s of albino rats who were injected with cimetidine during gestation will significantly perform low on the performance ability test (classical maze test) than those born to mother who were not injected was also tasted and confirmed [DF (2,9)=14/15, P<. 01]. The third hypothesis was that offspring’s born to albino rats who were injected with cimetidine during gestation will have a significant low birth weight than those offspring’s of mother who were not injected with cimetidine during gestation [DF (2,9) = 13.02, P< .01]. Data was analyzed using one way analysis of variance (ANOVA). We conclude that cimetidine intake during pregnancy will have effects on the memory, performance ability and birth weight of children. We therefore recommend that women who used cimetidine should stay away from it’s uses during pregnancy, because it is a teratogenic agent and could cause harm or impairment to their offspring’s.
Relación entre rendimiento académico y uso de aula invertida: casos clínicos y revisión de artículos médicos
Authors: Llanes Castillo Arturo , Cervantes López Miriam , Cruz Casados Jaime , Colmenares Díaz Ricardo
Published: July 2023

Hoy en día las necesidades de la sociedad respecto a la formación de profesionistas se encuentran en proceso continuo de cambio y bajo un acelerado avance tecnológico, siendo prioritario cambiar el modelo tradicional de enseñanza por uno basado en las necesidades de aprendizaje de los estudiantes por lo que el modelo de aula invertida se utiliza para favorecer dicho aprendizaje utilizando trabajo coordinado por docentes y alumnos. El objetivo de este trabajo es determinar el impacto de la metodología utilizada en el rendimiento académico de los estudiantes. Es un estudio descriptivo y cuasiexperimental aplicado a 63 estudiantes de segundo año de la licenciatura de médico cirujano de la Facultad de Medicina de Tampico de la Universidad Autónoma de Tamaulipas. Los resultados muestran que el grupo donde se utilizó el aula invertida con exposición de casos clínicos obtuvo mayor rendimiento académico. Como conclusión tenemos que el aula invertida en conjunto con la exposición de casos clínicos es un modelo que permite mejorar el rendimiento académico de los estudiantes, así como lograr los objetivos de aprendizaje de la asignatura.
Factores claves del emprendimiento social como agente de desarrollo en los gobiernos municipales
Authors: Romay Vega Jhonathan , González Pertúz Blanca
Published: July 2023

La presente investigación tiene como propósito analizar los factores claves del emprendimiento social como agente de desarrollo en los gobiernos municipales. Se fundamenta teóricamente en los postulados de: Morales (2013), Irizar (2018) Fournier (2011), Garcia-Escarré (2016), Zhao & Rauch (2012), Hidalgo (2014), Laborde y Veiga (2014), Almagro, 2013), Cantillo-Campo et al. (2021), Constitución de la República Bolivariana de Venezuela (1999), Ley Orgánica de los Consejos Comunales (2009), Ley Orgánica del Poder Público Municipal, (2010), entre otros. Metodológicamente, se desarrolló bajo el paradigma post positivista, siendo de tipo explicativa, de campo, empleándose el diseño No experimental y transversal en donde la población está representada por 345 consejos comunales y comunas de Maracaibo. Siendo la muestra, 25 para la población, se diseño un cuestionario escala Likert validados por expertos y con alta confiabilidad. Los resultados revelan que es pésima la puesta en práctica de los factores claves del emprendimiento social como agente de desarrollo porque no se impulsa con excelencia y eficacia la cultura emprendedora, formación y financiamiento. la cultura emprendedora es un proceso de creación de un nuevo proyecto basado en una innovación, dentro de una empresa establecida para promover el beneficio de la organización y realzar a la compañía a una posición competitiva.
Remittances to Mexico. Macroeconomic and microeconomic uses
Authors: Luna Víctor Isidro , López Vega Rafael
Published: July 2023

This article discusses the macroeconomic and microeconomic characteristics of Mexican remittances from 2003 to the present day. To study the macroeconomic relevance of remittances, we use the Bank of Mexico (Banxico) balance of payments from a heterodox viewpoint, and to study microeconomic relevance, we rely on the survey of international migration at the north border (EMIF Norte) regarding the flow of inland migrants coming from the United States (Procedentes de Estados Unidos-Terrestres, PEUAT). Macroeconomically, remittances are a stable flow of foreign change. They have blocked the existence of an unsustainable current account deficit and prevented crises and exchange rate depreciations. Microeconomically, remittances are national purchasing power, and they serve to increase private consumption in very important areas such as food and clothing, and health care and to reflect demographic characteristics of the remittances’ senders, such as the type of migrant who sends remittances (resident or nonresident), the sex of the migrant, and the main factors that drive remittances sent by Mexican people who are residents on US soil. This article does not fully show interconnections between the macroeconomic and microeconomics uses of remittances, nor does it stress the discrepancy between the balance of payments and national surveys in accounting for familiar remittances. Rather, we underline that a combination of sources such as the national accounts and national surveys must be carried out to understand the effects of remittances from macroeconomic and microeconomic viewpoints.
Percepciones sobre el turismo accesible. Caso: Isla Cozumel, México
Authors: Coronado Paola Hau , Segrado Pavón Romano , Bojórquez Vargas Alma
Published: July 2023

El objetivo de la investigación fue revelar la percepción social de Cozumel con respecto a la accesibilidad de los servicios turísticos para personas con discapacidad. El método fue cuantitativo y descriptivo aplicado en el ámbito turístico; se utilizó una encuesta con respuestas tipo Likert y la prueba U de Mann-Whitney. A través de los resultados se determinó que falta adaptar y ampliar la infraestructura, los servidores turísticos no están capacitados en este segmento y se requiere concientización social. Esto permite brindar herramientas útiles para evaluar las políticas públicas de accesibilidad universal.
Auditoría financiera y su relación con la auditoría operativa
Authors: Alegre Brítez Miguel , Kwan Chung Chap
Published: July 2023

La auditoría financiera se desarrolló como un nuevo concepto y herramienta para el control interno tal cual lo entendemos hoy. La auditoría financiera y la auditoría operativa poseen relación con el control de costos, la administración del capital y los registros contables, como una base para la toma de decisiones. El objetivo general del trabajo fue analizar la relación entre la auditoría financiera y la auditoría operativa. Se realizaron entrevistas a siete (7) expertos en auditoría financiera y operativa de Paraguay y el instrumento de recolección de datos tuvo ocho (8) preguntas abiertas cualitativas; el procesamiento de datos se hizo con el programa cualitativo aquad. Los principales resultados fueron: a) la conceptualización armónica entre la auditoría financiera y su relación con la auditoría operativa, y b) la auditoría financiera es una herramienta del control interno utilizada por los administradores para ser aplicada en forma separada o conjunta con otros métodos de auditoría operativa.
Liderazgo en las organizaciones virtuales: descubriendo hallazgos
Authors: Navarrete Fonseca Mario , Pazmiño Cano Gloria , Garófalo Untuña Viviana , Baraja Mena Wilson
Published: July 2023

Las organizaciones están constantemente cambiando debido al mercado que cada vez es más agresivo y demanda nuevas necesidades, es por ello que el liderazgo es parte esencial para descubrir estrategias y herramientas para ser competitivos en esta era virtual donde la mayor parte de transacciones se desarrolla a través de plataformas y medios digitales. Además, conlleva que se revise constructos teóricos para la identificación de que liderazgo requieren estas empresas virtuales. La finalidad del estudio es exponer la importancia del liderazgo en las organizaciones virtuales para la generación de una base teórica potente. La metodología fue una revisión teórica a través de un análisis de discurso, ello consistió en la revisión de varios artículos científicos para determinar los factores estudiados y los constructos teóricos generados en cada investigación. El liderazgo en las organizaciones virtuales es especial, pues sino maneja competencias tecnológicas y la capacidad de llegar a motivar a las personas no será capaz de ejercer o dirigir una empresa de este estilo, pues demanda mucho el estudio de la conducta del ser humano para plantear estrategias, herramientas y prácticas que procuren la eficiencia de la organización y generen competitividad en el mercado.
Gambaran Tingkat Stress Kerja Perawat Intensive Di Rumah Sakit Santa Elisabeth Medan
Authors: Sembiirng Friska , Rante Rupang Ernita
Published: July 2023

Perawat intensive mempunyai perbedaan mendasar dengan peran perawat di ruang perawatan lainnya yaoti harus memiliki pengetahuan dan keahlian khusus dalam menangani kondisi pasien kritis serta menilai keadaan pasien yang cenderung fluktuatif. Penelitian ini bertujuan untuk mengetahui gambaran tingkat stress kerja perawat intensive. Jenis rancangan penelitian ini adalah deskriptif survei pada 56 responden dengan pengambilan total sampling. Populasi dalam penelitian ini adalah semua perawat intensive di RS Santa Elisabeth Medan sejumlah 56 orang dan tehnik pemgambilan sampel adalah total sampling dan instrumen untuk mengukur tingkat stres sampel adalah kuesioner DASS  (Depression Anxiety Stress Scales). Hasil penelitian karakteristik responden menunjukkan jenis kelamin mayoritas perempuan (83,3%), sebagian besar usia dewasa awal (63,3%),tingkat pendidikan sebagian besar D III Keperawatan (68,3%), mayoritas sudah menikah (80%), lama bekerja >10 tahun (50%) dengan sebagian besar tingkat stress sedang (60,7) Penelitian ini memberikan informasi tingkat stress perawat yang bekerja di ruang intensive dengan berbagai kondisi pasien sehingga di rekomendasikan agar perawat intensive dapat mengikuti pendidikan dan pelatihan untuk mengantisipasi stressor
EFEKTIVITAS PENANGANAN KASUS KEKERASAN TERHADAP PEREMPUAN DAN ANAK OLEH DINAS PEMBERDAYAAN PEREMPUAN DAN PERLINDUNGAN ANAK KOTA SORONG
Authors: Rahmi Aulia , Kitaby A. Magfirah Ummul
Published: July 2023

Violence is an act or threat to oneself, a group of people or society or individuals that causes death, loss, psychology, trauma or deprivation of rights. Cases of violence against women and children are nothing new. There is a lot of violence against women and children that often happens around us. Cases of violence against women and children are increasing every year. The change of Sorong City to become the Capital City of Southwest Papua Province had a major influence on cases of violence against women and children in Sorong City, with an increase in population, the number of cases of violence also increased.

Cases of violence against women and children come in various forms of violence. Ranging from physical and psychological violence, domestic violence, neglect, harassment to trafficking in persons. Cases of violence against women and children may occur in the social environment, including the family environment, the workplace, to educational institutions.
USO DE GEOTECNOLOGIAS COMO FERRAMENTA PARA DELIMITAÇÃO E MONITORAMENTO DAS ÁREAS DE PRESERVAÇÃO PERMANENTE DO MUNICÍPIO DE BONITO - MS
Authors: Aranda Lucas Candido Rodrigues , Santos Noé Barroso dos , Dourado Camila da Silva
Published: July 2023

As áreas de preservação permanente (APPs) têm um papel fundamental na manutenção da biodiversidade e na qualidade ambiental dos recursos naturais. A aplicação das técnicas de geoprocessamento para identificação e zoneamento das APPs, e para determinação aptidão do uso das terras possibilita uma melhor fiscalização e planejamento do uso racional dos recursos água e solo. Diante disto, o objetivo deste trabalho é identificar e delimitar e monitorar as áreas de preservação permanente de cursos d'água, bem como, a mudança do uso da terra da Bacia Hidrográfica do município de Bonito - MS, com vistas a sua ocupação racional e identificação de possíveis áreas de conflito do uso do solo e água. Para isto, foram utilizados dados de imagens orbitais, bases cartográficas, e edafoclimáticas, para gerar o mapeamento específico das APPs de cursos d´água, por meio de técnicas de geoprocessamento. Os resultados obtidos permitiram identificar e espacializar as áreas de preservação permanente, bem como os diferentes usos do solo para o período 1985 e 2020.
A study on virulence determinants and antimicrobial resistance among Enterococci isolates
Authors: Rajan Reena , Dhandapani Karthikeyan
Published: July 2023

Introduction and Aim: Presence of virulence factors may cause increased persistence of Enterococci in the healthcare environment, increase ability to colonise inpatients and thereby result in the transmission of infection. The present study was performed to detect the presence of virulence traits among the clinical strains of Enterococci and to determine its association between virulence factors   and susceptibility to various antibiotics.
 
Materials and Methods: Clinical isolates of Enterococci were identified to species level by conventional method and Vitek 2 automated method and subjected to antibiotic susceptibility testing using disk diffusion and Minimum Inhibitory Concentration (MIC) method. Presence of hemolysin, gelatinase and biofilm was detected by phenotypic method.
 
Results: Out of 708 isolates from urine 39 (5.51%) Enterococcus faecalis, and 3 isolates each of Enterococcus faecium (0.42 %) and Enterococcus durans (0.42 %) were biofilm producers. Beta hemolysin production was detected in 342 (48.30%) E. faecalis obtained from urine and 9/48 (18.75 %) from pus. Out of the isolates studied, 9/774 (1.16 %) isolates were found to be positive for beta-hemolysin production, gelatinase and biofilm production. All the 9 (100.00 %) isolates were resistant to penicillin, high level gentamicin, ciprofloxacin and levofloxacin.
 
Conclusion: Virulence factors described in Enterococci enable these organisms to colonise patient tissue, increase resistance to antimicrobial agents and aggravate infection outcome.
Herpes simplex virus: A case report and review of literature
Authors: Shetty Mamatha , Sara John Deepa , Durgapal Surabhi , Shetty Urvashi
Published: July 2023

Herpes simplex virus (HSV) is a double-stranded DNA virus that exists in two forms- HSV 1 and HSV 2. Oral herpetic lesions are typically caused by HSV-1. In the oral cavity, they are known to cause painful lesions that most commonly involve gingiva, palate, and buccal mucosa. Since it is a contagious infection and has the potential to cause complications in the host, timely diagnosis and management are important. Therefore, dental professionals must be aware of clinical presentation and appropriate diagnostic and management measures. The following case report discusses a case of Herpes Simplex Virus in a 33-year-old, systemically healthy female patient, who reported to the dental OPD with oral symptoms. The clinical features, investigations, diagnosis, and management of the condition have been elaborated in the review.
Promising catheters to reduce hospital-acquired urinary tract infections
Authors: Renukaprasad Abhijnya K. , Suman Ethel , Jeppu Udayalaxmi , Paul S. Harsha
Published: July 2023

Introduction and Aim: Hospital-acquired infection with multidrug-resistant bacteria following urinary catheter use in hospitalized patients is mainly due to the biofilm-forming ability of these bacteria. It becomes essential to look at the other options of treatment of such urinary tract infections (UTI) and one such option has been the use of bacteriophages. The study aimed to compare the biofilms formed by uropathogenic Escherichia coli on three different types of urinary catheters in the presence of crude coliphage and sub-inhibitory concentration of ciprofloxacin.
 
Materials and Methods:  It was an Institution based experimental study. A total of 10 red rubber (latex) catheter pieces, 10 Foley (PVC) catheter pieces and 10 silicone Foley catheter pieces were used for the study. Crude coliphage suspension was prepared from sewage samples taken from the sewage treatment plant.  Biofilm production by ten uropathogenic E. coli isolates on these catheters was determined by Kolter and O’Toole’s method with certain modifications. Biofilm assay was repeated with conditions using crude bacteriophage and sub-inhibitory concentration.  An electron micrograph of the catheter pieces was taken to visualize the biofilm formed. P value of 0.05 was considered statistically significant.
 
Results: It was observed that, in the presence of crude bacteriophage there was a significant reduction in the biofilm formation on all three catheters (p 0.05). Also, there was a significant reduction in biofilm production in the presence of sub-inhibitory concentration of ciprofloxacin on silicone Foley’s catheter (p=0.001) but not on red rubber catheter or PVC Foley’s catheter (p 0.05). It was also observed that in some of the isolates the colony counts increased following the addition of ciprofloxacin in case of PVC Foley catheters.
 
Conclusion: Bacteriophage-coated catheters may be the gateway to overcoming the hurdle of multidrug-resistant catheter-associated urinary tract infection.