bluuebunny/crossref_metadata_2025 huggingface dataset:
Almacenamientos Pluviales en el Valle de Amealco, México. Vaivenes en la Sustentabilidad
Authors: Hernandez Acela Montes de Oca , Rojas Laura Millán
Published: July 2024

El ser humano interrumpe los flujos de agua, al menos desde la invención de la agricultura y con ayuda de la ingeniería hidráulica impacta severamente en las dinámicas fluviales; a cambio de la oferta por un desarrollo económico. Mientras que los almacenamientos pluviales, frecuentemente, desarticulados de la planificación ambiental, nos instiga a reflexionarlos en términos de territorio y sustentabilidad. De ahí que, elegimos a humedales antrópicos por ser tecnologías tradicionales que concentran suficiente agua pluvial; dando origen a intermitentes paisajes de regadío. Asimismo, sacian la sed de numerosos rebaños y ofertan agua para el uso doméstico. Surgiendo la pregunta ¿Cómo la propuesta de territorio hidrosocial en humedales antrópicos contribuye con los enfoques de sustentabilidad? El objetivo es examinar a los humedales de Amealco de Bonfil, Estado de México como sistemas antrópicos y ecológicos pluviales desde el enfoque de territorios hidrosociales y sustentabilidad. A través de método cualitativo reflejado en trabajo de campo, aunado a la etnografía, se define el espacio de estudio y las interacciones territoriales
Composição e Perfil Sensorial de Biscoito à Base de Pólen Apícola Originário da Caatinga
Authors: Coelho Brenda Karoline Tiburcio , Calixto Francisca Kariny  da Silva , Freitas Rômulo Magno Oliveira de , Sousa Elisabete  Piancó de , Carvalho Luciene  Xavier de Mesquita
Published: July 2024

O pólen apícola vem ganhando mercado como complemento nutricional, e, por ser advindo da apicultura, favorece uma dinâmica sustentável do ponto de vista social e ambiental podendo ser uma alternativa para contornar a insegurança alimentar. Seu uso incentiva a preservação da vegetação nativa, contrapondo a degradação originária de práticas tradicionais de produção de alimentos. É composto por proteínas, carboidratos, lipídios, compostos fenólicos, bioelementos bem como vitaminas, apresentando um excelente perfil nutricional, que pode variar em função da flora apícola de origem. Com o intuito de aumentar sua ingestão diária, o estudo de novos produtos alimentícios enriquecidos torna-se relevante. Portanto, objetivou elaborar e caracterizar um biscoito tipo cookies a base de pólen apícola, coletado em área de Caatinga. A caracterização centesimal do pólen e das quatros formulações de biscoito tipo cookies, elaborados com diferentes concentrações de pólen apícola (a 0%, 4%, 8% e 12%), foi realizada e os biscoitos posteriormente avaliados ainda quanto aos aspectos microbiológicos e sensorial. O pólen apícola apresentou alto teor de proteína, comprovando seu potencial como insumo na fabricação de alimentos. Os biscoitos, a partir do acréscimo de pólen, tiveram um aumento no teor de proteínas e de cinzas e diminuição no teor de carboidratos e fibra bruta. Sensorialmente, todos os parâmetros foram estatisticamente iguais, exceto pela intenção de compra. A aceitabilidade foi evidenciada em todas as fórmulas. Diante dos resultados alcançados, o pólen apícola é um ingrediente que pode melhorar as propriedades nutricionais de cookies, demostrando competência para sua inserção no mercado e comprovando seu papel como alimento sustentável em consonância com os preceitos e objetivos da Agenda 2030.
Ecogeographical Characterization of Passiflora cincinnata Mast. and Passiflora setacea DC. Native to the Central-southern mesoregion of Bahia Passion Fruit Ecogeography in the Central-Southern Mesoregion of Bahia
Authors: Meira Messulan Rodrigues , Silva Thalana Souza Santos , Souza Carolina Gusmão , Cerqueira-Silva Carlos Bernard Moreno
Published: July 2024

Passiflora cincinnata and Passiflora setacea are two native species from the northeastern semiarid region, with wide distribution in the central-southern mesoregion of the Bahia state. These species are recognized for the production of bioflavonoids. However, although they have economic relevance, little is known about ecogeographic, morphological and ecophysiological aspects. Therefore, the goal was to characterize the physiochemical and granulometric attributes of the soil as well as the edaphoclimatic conditions in 12 locations of naturally occurring Passiflora cincinnata and Passiflora setacea in the central-southern mesoregion of Bahia. The results showed environments belonging to the ecotones of the Cerrado, Caatinga and Mata Atlântica biomes. In these phytophysiognomies, the soils varied between cambisol, oxisol and planosol and presented a sandy texture and acidic pH. They also have varied ecogeographic characteristics with altitudes between 481 and 929 meters, precipitation between 478 and 1.644 millimeters and average temperature ranging between 15 and 31 degrees. Sites with average temperatures of up to 28 degrees, altitude between 670 and 860 meters, pH between 4.3 and 5.11, base saturation smaller than 50 and H+Al between 2-5 favor both species. Temperatures up to 31 degrees, pH between 5 and 6, base saturation bigger than 50 and H+Al smaller equal 1.5 favor P. cincinnata. Environments with temperatures of up to 27 degrees, altitudes above 900 meters, average pH of 4.5, average base saturation of 30 and average H+Al of 3, favors P. setacea. Keywords: environmental adaptation; ecogeography; genetic resources; wild passion fruit; sleep passion fruit.
Valparaíso y su Salud: algunas notas para el estudio de la gestión hospitalaria (1906 – 1918)
Authors: Inostroza Aldo Meneses , Alarcón Juan Galea , Sanchez Alessandro Monteverde
Published: July 2024

El presente artículo, describe y analiza el proceso de la gestión hospitalaria en la ciudad puerto de Valparaíso, entre los años de 1906 a 1918, donde se manifestaron procesos de cambios urbanos importantes, como fue el inicio de un lento proceso de decaimiento y posterior estancamiento. Este estudio se aborda desde la metodología propia del análisis histórico, recogiendo las situaciones complejas a los cuales se vieron enfrentados los actores locales involucrados y las gestiones que estos llevaron a cabo para dar solución a las distintas problemáticas sanitarias de Valparaíso y que repercutieron en sus habitantes y de forma particular en los sectores más empobrecidos.
Traços Funcionais de Plantas Nativas do Bioma Cerrado: Uma Revisão Sistemática
Authors: Santos Leovigildo Aparecido Costa , Silva-Neto Carlos de Melo , Trevisan Adriana Carla Dias
Published: July 2024

O bioma Cerrado abriga mais de 12.000 espécies vegetais nativas, distribuídas em 11 fitofisionomias, incluindo áreas campestres, savânicas e florestais. Essa diversidade de ambientes confere às plantas nativas traços funcionais específicos. Para investigar esses traços funcionais, realizou-se uma pesquisa na base de dados Web of Science, o que resultou no total de 1227 publicações, das quais 482 foram retidas para análise após a aplicação de critérios de filtragem. Foram empregados métodos de cienciometria para a obtenção de métricas de publicação e análise de conteúdo dos artigos. Observou-se que os traços funcionais mais frequentes nas publicações estão relacionados às temáticas como fenologia, fotossíntese, ocorrência de fogo, herbivoria, polinização, área foliar, carbono, capacidade de rebrota, concorrência, adaptações à seca, anatomia vegetal e dispersão de sementes. O número de publicações foi crescente durante o período analisado (1991-2022), principalmente a partir do ano 2011, com ao menos 20 artigos publicados anualmente. Os temas básicos de pesquisa foram Cerrado, mudança climática, ecologia do fogo e déficit hídrico, os temas motores incluíram assuntos relacionados, principalmente, à fotossíntese e mudança climática. Com base nas análises, observa-se que os traços funcionais podem ser classificados em demográficos, fenológicos, fisiológicos, morfológicos, morfofenológicos e morfofisiológicos. Apesar deste estudo ser abrangente, ressalta-se que o número de artigos publicados investigando os traços funcionais de plantas nativas do Cerrado é incipiente, principalmente diante das rápidas alterações de uso e cobertura da terra que ocorrem no bioma e que podem afetar significativamente a flora. São necessários mais estudos para gerar conhecimentos e preencher as lacunas em relação às respostas e adaptações das plantas do bioma às diferentes condições e limitações ambientais, principalmente em um cenário de mudança climática, alterações no uso do solo, fragmentação de habitats, invasão de ambientes naturais por espécies exóticas e contaminação por agroquímicos.
Sleep Disordered Breathing and Exercise in Pulmonary Hypertension
Authors: Singh Navneet , Mullin Christopher J.
Published: July 2024

Exercise intolerance is a common feature of many cardiopulmonary diseases including pulmonary hypertension (PH) and sleep disordered breathing (SDB), which includes obstructive sleep apnea and obesity hypoventilation syndrome. Physiologic abnormalities in both PH and SDB can drive exercise intolerance, and biological mechanisms overlap among the conditions including systemic inflammation, oxidative stress, metabolic dysfunction, and endothelial dysfunction. Despite this understanding, evidence establishing clear causal relationships among PH, SDB, and exercise intolerance is lacking. Data show that treatment of SDB may improve exercise capacity, and exercise training likely improves SDB, although these relationships specifically in PH remain understudied. In this manuscript, we summarize existing data of mechanisms and clinical observations in PH, SDB and exercise and identify gaps and opportunities for future investigation.
Beneficios económicos y ambientales de la semilla certificada de arroz (Oryza sativa) en la costa norte y selva norte del Perú
Authors: Diez Matallana Ramón , Minaya Gutiérrez Carlos , Vásquez Quispe Carolay , Barrientos Ortiz Nicole , Duárez Ruiz Andrea , Cusi Osccorima María , Velarde Swayne Santiago
Published: July 2024

El arroz (Oryza sativa) es un grano que alimenta a más de la mitad de la población mundial, siendo el tercer grano más cultivado en el mundo, después del maíz y trigo. En Perú, 70 mil productores siembran arroz en 417 mil hectáreas; y producen 3,4 millones de toneladas, con un rendimiento promedio nacional de 8,21 toneladas por hectárea. Esta producción se concentra en la costa norte y selva norte: 39,58%, en 50% de la superficie agrícola total de arroz. Por lo tanto, el objetivo fue evaluar los beneficios económicos y ambientales de masificar el uso de semilla certificada de arroz en la costa norte y en la selva norte del Perú. La metodología contempla el uso de información secundaria, para aplicar el modelo de presupuesto parcial, cambio de excedentes económicos y variación del coeficiente de impacto ambiental (EIQ). Los resultados indican que la hipotética adopción de semilla certificada de arroz puede generar un 81,57% de mayor rentabilidad para los productores, además de un beneficio social neto actualizado de S/ 8,455 millones. Asimismo, el impacto ambiental también sería positivo, puesto que el EIQ de la producción de arroz se reduciría en 26,06%. Por tanto, se recomienda investigar el impacto de la semilla certificada en otros cultivos importantes para la economía peruana.
Targeted Therapy for Atopic Dermatitis: A Novel Approach
Authors: Chauhan Mansi , Mazumder Rupa , Rani Anjna , Kumar Arvind , Chaitanya MVNL
Published: July 2024

Atopic Dermatitis is a chronic, inflammatory, and widespread skin disease with heterogeneous manifestations having a significant influence on the lives of youngsters and adults. Atopic Dermatitis prevalence is higher in african-american children compared with european american children and it is mainly caused by the interaction between various factors such as genetics, skin barrier dysfunction, and immune abnormalities. Despite various available treatment options for atopic dermatitis, they often fall short in addressing the root cause, prompting patients to seek more effective and enduring solutions. To combat these shortcomings, researchers are focusing on the development of targeted therapy. The development of targeted treatment options involves the utilization of a range of biologic agents designed to pinpoint specific components and regulators of inflammatory pathways associated with allergic and inflammatory conditions. Phytochemicals viz. alkaloids, phenols, carotenoids, and organo-sulfurs have been utilized in traditional medicine for centuries which contribute to increased efficacy while minimizing adverse effects. The objective of this review is to provide information regarding the epidemiology, pathophysiology, and evolving landscape of targeted therapy for atopic dermatitis, encompassing both biologics and phytochemicals.
The Landscape of microRNAs in Bone Tumor: A Comprehensive Review in Recent Studies
Authors: Raoufinia Ramin , Afrasiabi Parisa , Dehghanpour Amir , Memarpour Sara , Hosseinian Sayyed Hadi Sayyed , Saburi Ehsan , Naghipoor Karim , Rezaei Samaneh , Haghmoradi Meisam , Keyhanvar Neda , Rostami Mehdi , Fakoor Farhad , Kazemi Mohammadali Izadpanah , Moghbeli Meysam , Rahimi Hamid Reza
Published: July 2024

:

Cancer, the second greatest cause of mortality worldwide, frequently causes bone metastases
in patients with advanced-stage carcinomas such as prostate, breast, and lung cancer. The
existence of these metastases contributes to the occurrence of skeletal-related events (SREs),
which are defined by excessive pain, pathological fractures, hypercalcemia, and spinal cord compression.
These injurious incidents leave uncomfortably in each of the cancer patient’s life quality.
Primary bone cancers, including osteosarcoma (OS), chondrosarcoma (CS), and Ewing's sarcoma
(ES), have unclear origins. MicroRNA (miRNA) expression patterns have been changed in
primary bone cancers such as OS, CS, and ES, indicating a role in tumor development, invasion,
metastasis, and treatment response. These miRNAs are persistent in circulation and exhibit distinct
patterns in many forms of bone tumors, making them potential biomarkers for early detection
and treatment of such diseases. Given their crucial regulatory functions in various biological processes
and conditions, including cancer, this study aims to look at miRNAs' activities and possible
contributions to bone malignancies, focusing on OS, CS, and ES. In conclusion, miRNAs are
valuable tools for diagnosing, monitoring, and predicting OS, CS, and ES outcomes. Further research
is required to fully comprehend the intricate involvement of miRNAs in these bone cancers
and to develop effective miRNA-based treatments.
The Role of Induced Pluripotent Stem Cells in the Treatment of Stroke
Authors: Darban Yasaman Mehdizadeh , Askari Hamid , Ghasemi-Kasman Maryam , Yavarpour-Bali Hanie , Dehpanah Amirabbas , Gholizade Parnia , Nosratiyan Nasrin
Published: July 2024

:

Stroke is a neurological disorder with high disability and mortality rates. Almost 80% of
stroke cases are ischemic stroke, and the remaining are hemorrhagic stroke. The only approved treatment for ischemic stroke is thrombolysis and/or thrombectomy. However, these treatments cannot sufficiently relieve the disease outcome, and many patients remain disabled even after effective thrombolysis. Therefore, rehabilitative therapies are necessary to induce remodeling in the brain. Currently,
stem cell transplantation, especially via the use of induced pluripotent stem cells (iPSCs), is considered a promising alternative therapy for stimulating neurogenesis and brain remodeling. iPSCs are
generated from somatic cells by specific transcription factors. The biological functions of iPSCs are
similar to those of embryonic stem cells (ESCs), including immunomodulation, reduced cerebral blood
flow, cerebral edema, and autophagy. Although iPSC therapy plays a promising role in both hemorrhagic and ischemic stroke, its application is associated with certain limitations. Tumor formation,
immune rejection, stem cell survival, and migration are some concerns associated with stem cell therapy. Therefore, cell-free therapy as an alternative method can overcome these limitations. This study
reviews the therapeutic application of iPSCs in stroke models and the underlying mechanisms and
constraints of these cells. Moreover, cell-free therapy using exosomes, apoptotic bodies, and microvesicles as alternative treatments is discussed.
Multimodal Biometric Authentication Using Watermarking
Authors: S. Shargunam , R. Mallika Pandeeswari , R. Ravi , E. Praywin Samson , M. Samuel , Sharon Preethi
Published: July 2024

The primary goal of this study is to provide a robust validation for biometric
systems. When compared to unimodal biometrics, which use just one biometric feature,
such as a unique finger print, facial feature, or palm print, multimodal validation
provides a higher level of confirmation. In this paper, we use an individual's distinctive
fingerprint as a watermark that is installed in the desired locations of the facial image
of that individual that is captured with the aid of using a camera. This is accomplished
by using a technique known as the Discrete Wavelet Transform (DWT). Between
unwatermarked and watermarked face images, there is a significant serious level of
visual relationship. Peak Signal-to-Noise Ratio (PSNR) and Mean Squared Error
(MSE) procedures have been compared to and evaluated by the proposed watermarking
strategy. 
Underwater AUV Localization with Optimal Cardinal Selection Using Dynamic Positioning Parameters
Authors: A. Prashanth N. , Venkatareddy Prasanth
Published: July 2024

Today, underwater communication has become a hot issue in research on
both undersea and deep-sea navigation, as well as in autonomous underwater vehicle
management, and acoustic communication has been accounted for due to its flexibility
and lower degree of attenuation. However, owing to influencing elements such as
channel time changing circumstances, bandwidth measurements, longer propagations
delay and the greatest degree of Doppler spread, pressure conditions, and salinity level,
establishing acoustic communication in real-time is much more difficult.

 With a new monitoring era of global physical entities, a new agent-based multipath
routing protocol has been proposed in this work including underwater sensor nodes and
underwater gateways with an autonomous underwater vehicle (AUV). The clustering
head in the impacted region of sensor nodes will gather and aggregate data using
mobile agent-initiated routing algorithms for identifying numerous pathways, as well as
parameters including hope counting, delay propagation, nodal energy, and channel
quality. In this paper, an agent-based dynamic AUV traversal method is developed for
increasing the network's dependability and connection while reorienting the AUV's
movement direction.
Comparative Modelling and Binding Compatibility of Bi-Functional Proteins in Microcystis aeruginosa
Authors: Anandaram Harishchander
Published: July 2024

The objective of the study was to identify a potential inhibitor for
Bifunctional Protein in Microcystisaeruginosa. The in silico modeling of the protein
using the “TBM” module of “Galaxy Seok Lab” extended the execution of virtual
screening using MTi open screen. Finally, the protein-ligand interaction was studied
using LIGPLOT software for “Bifunctional Protein” in “Microcystis aeruginosa.” The
virtual screening revealed 7176 compounds from the drug library, and the “best fit”
screening resulted in 1500 compounds. Among the 1500 compounds, the molecule
MK-3207 showed a better affinity towards the bifunctional Protein with -11.3Kcal/mol
binding energy.
Economic Consideration of an Off-Grid Hybrid Power Generation System using Renewable Energy Technologies: Case Study of an Institutional Area in the State of Rajasthan
Authors: Doda Devendra Kumar
Published: July 2024

The focal point of this study is to recreate and plan a hybrid system
consisting of a solar photovoltaic, a battery and a diesel generator and optimize the
configuration into an off-grid hybrid structure to meet the electricity demand of an
institutional area situated in Jaipur, Rajasthan, India. Various configurations have
different specifications obtained to meet the load demand based on input parameters
which are obtained from a pilot survey and the main survey a particular location.
Various costing parameters such as per unit of cost and net present cost are estimated
with the condition of meeting the maximum load demand. The HOMER (Hybrid
Optimization Model for Electric Renewable) software is used for different simulation
processes and finally it is found that solar PV-battery-diesel generator hybrid system is
an economical system to meet the electricity demand in which the cost of energy is
obtained as ₹ 13.83 and Net Present Cost is ₹ 9.78M with initial capital and operating
costs of ₹ 4.20M and ₹ 646,319 per year, respectively. The diesel fuel cost is obtained
as ₹ 5,09,288 per year. Meanwhile, the electricity produced and consumption are also
estimated as 1,09,040 kWh/year and 81,939 kWh/year, respectively, with an unmet
load of 1.77% only.
High-Performance Mixed Signal VLSI Design For Multimode Demodulator
Authors: Kabilan R. , Gabrie J. Zahariya , R. Ravi , Austin M. Philip
Published: July 2024

A mixed signal quadrature demodulator was suggested in this study. In 90
nm CMOS technology, to get the desired frequency range, a quadrature VCO is
employed. The fast speed is achieved with a three-bit ADC. Unused ADC construction
components have been removed to conserve energy and space. Outputs obtained are
used to meet the power needed in the mixed signal demodulator designed for multigigabit applications. QVCO, baseband AGC, frequency synthesizers, and IQ mixers,
are all part of the demodulator. This displays the highest level of integration while
using the least amount of electricity. To sample the symbols at optimal SNR, the
baseband modem included a mixed signal timing recovery loop based on the Gardner
timing error detector. 
Pre Placement 3D Floor planning of 3D Modules Using Vertical Constraints For 3D IC'S
Authors: Gabrie J. Zahariya , R. Ravi , Kabilan R. , Austin M. Philip
Published: July 2024

This project focuses on wire length reduction throughout the 3D floor layout
stage. The 3D cell layout stage is part of the floor planning process. Previously, it was
expected that the entire module would be placed on a single device layer. They don't
consider how a module's cells may be dispersed across many device levels to reduce
the cable length. Each of the device layers is assigned to one of the cells that make up a
module (a 2D module is converted into a 3D module). To place cells in three
dimensions, several constraints are used. The placement aware constraints are a set of
constraints that determine whether a 2D module may be turned into a 3D module. The
vertical alignment of identical submodules owing to the same planar placement
requirement is referred to as vertical constraint. The size of the solution will be reduced
as a result of this. A 3D floor design module packing method is proposed by the author.
Calculating the wire length and taking into consideration the feasibility requirement, a
smaller solution area is used to arrange the 3D cells in an initial set of floor layouts.
After finding the best floor design, the modules are packed using a packing algorithm,
and the technique is finished. A placement aware 3D floor design method is the name
of the approach, which is developed in C++ and operates on Fedora Linux.
IoT-Based Automatic Irrigation System
Authors: M. Raja , Nithish N. M. , B. Saravana Shankar , D. Sadhurwanth
Published: July 2024

Agriculture is one of the backbones of our Indian economy. India is
primarily an agricultural country. It plays an important role in the development of our
nation. This project proposes an automatic irrigation system, because it maintains the
moisture content present in the soil by automatic irrigation system. This setup uses a
capacitive soil moisture sensor v1.2 that measures the exact amount of soil moisture. It
monitors soil properties such as temperature, humidity, soil moisture, and motor status.
These parameters are measured using a soil moisture sensor, a DHT11 sensor, which is
controlled by a NodeMCU that acts both as a microprocessor and as a server. It is
possible to remotely control many farm operations from any part of the world through
IoT.
Role of Indian Spices in the Management of Emerging Viral Infections
Authors: Singh Anuradha
Published: July 2024

The viral pandemic, with both emerging and re-emerging characteristics, has
had a significant impact on human lives worldwide. This pandemic has resulted in
substantial morbidity and mortality due to its rapid and widespread transmission among
the general population. Unfortunately, the lack of effective antiviral treatments has
further complicated the situation, making it challenging to control and manage the
disease effectively. The ideal method for safeguarding against viral infections is to be
immune. India's indigenous systems of medicine, with its rich array of phyto-therapies
and natural remedies, have attracted the global community's interest. As a result, people
all around the world are turning to and rekindling their interest in immune-boosting
traditional remedies. Spices, with their significant therapeutic potential and excellent
safety profiles, are currently being extensively studied as herbal drugs and immuneenhancing home remedies against infectious diseases. The first part of this chapter
discusses the need for new antiviral drugs, especially in light of the recent pandemic.
The second part reviews the extensive scientific evidence on the immune-boosting
effects of many Indian spices, as well as their potential to fight viral infections. It also
discusses their safety and toxicity profiles.
ANALYZING THE PROPERTIES OF A COMPOSITE OF PCL-GRAPHITE BY THE INJECTION MOLDING
Authors: Setyarini Putu Hadi , Fariqi Ikhwan Hafiz , Sonief Achmad As’ad
Published: July 2024

Coral reefs are vulnerable to several natural phenomena such as ocean warming, acidification, coral diseases, and plastic pollution. In order to tackle these problems, scientists are now working on the development of biocomposites utilizing biodegradable polymers such as polycaprolactone (PCL). Graphite can be used in conjunction with PCL to enhance its characteristics. The work is centered around conducting water absorption experiments on a composite material consisting of PCL and graphite. The investigation employs PCL granular and graphite powdered materials. The materials undergo heating, crushing, and weighing processes to ascertain weight ratios. Next, the mixture is shaped into specimens. The product's shape and distribution of chemical constituents are analyzed using water absorption, hydrophobicity, FTIR, and SEM testing. The findings indicate that the water absorption diminishes as the concentration of graphite powder increases. An alloy containing 10% graphite had the highest water absorption rate. The hydrophobicity test assesses the ability of a specimen's surface to repel water by introducing NaCl droplets and observing droplet production. The contact angle value exhibits a direct correlation with the increase in graphite content. The FTIR study indicates that there are no changes in the functional groups, resulting in a limited connection between the PCL matrix and the graphite filler. The temperature during the injection molding process affects the microstructure of the polymer. Lower temperatures lead to reduced crystallization, whereas higher temperatures result in denser molecular groupings. Graphite is a highly suitable choice for use as a filler in a PCL matrix because of its layered structure, large surface area, and excellent capacity to effectively fill voids within the matrix.
MODIFICATION OF WOVEN DENDROCALAMUS ASPER IN COMPOSITE APPLICATIONS
Authors: Raharjo Rudianto , Darmadi Djarot Bangun , Gapsari Femiana , Setyarini Putu Hadi , Alamsyah Fikrul Akbar
Published: July 2024

The aim of this study is to examine the influence of immersing Petung Bamboo in a NaOH solution on the tensile strength (TS) of composites containing an epoxy matrix. Petung Bamboo Webbing was given 0%, 3%, 6% and 9%, soaking treatment. The Composite utilised in this investigation was fabricated by the Vacuum Assisted Resin Infusion technique. Tensile testing of composites is conducted according to the ASTM D638-1 standard. The findings indicated a positive correlation between the concentration of NaOH immersion and the adhesion between the woven surface of Petung Bamboo and the matrix. Consequently, the TS of the Composite was enhanced. However, increasing the concentrations beyond a certain point leads to more degradation of the lignin and cellulose in the fibers, resulting in a loss in the strength of the composite. The Petung Bamboo woven reinforced Composite achieved the highest TS of 136.06 MPa after being treated with a 6% NaOH immersion. This was followed by a 3% NaOH immersion treatment resulting in a TS of 106.04 MPa. Without any NaOH immersion treatment, the composite had a TS of 97.31 MPa. The lowest TS of the composite was observed after a 9% NaOH immersion treatment, measuring 90.79 MPa. The Petung Bamboo wicker-reinforced composite with NaOH immersion treatment showed higher fiber pullout and fiber-matrix debonding failures, while higher NaOH treatment concentration reduced these failures.
Incidencia de la pandemia de COVID-19 en el narcotráfico y su violencia asociada en Colombia
Authors: Guerrero-Sierra Hugo Fernando , Wilches-Tinjacá Jaime Andrés , Atehortúa-Santamaría Rodrigo
Published: July 2024

Este artículo analiza la incidencia de la pandemia de COVID-19 en el narcotráfico y su capacidad de ejercer violencia sobre el territorio. Para eso, hace un análisis estadístico que cruza información sobre producción de hoja de coca en tres distritos cocaleros (enclaves) y sobre circuitos de violencia selectiva (masacres) en dichas zonas, durante los periodos 2017-2019 y 2020. Los resultados evidencian que el narcotráfico logró adaptarse a la pandemia y fortalecer su capacidad de violencia y control social en los tres distritos cocaleros. Esto también lleva a considerar la capacidad de las organizaciones criminales para adaptarse a situaciones de emergencia social, económica y política.
Impacto de la inseguridad y la participación ciudadana sobre la satisfacción con la democracia
Authors: Alvarado-Mendoza Arturo
Published: July 2024

Este artículo analiza cómo la inseguridad y la participación ciudadana afectan la satisfacción democrática, la confianza en las instituciones y el estado de derecho. En primer lugar, se revisa la literatura sobre los determinantes de la satisfacción con un régimen democrático, según la cual la criminalidad afecta la percepción de seguridad, la evaluación y la confianza en el gobierno, el respeto a la ley y el apoyo al régimen, componentes esenciales de un régimen democrático. Luego se presentan los resultados de una encuesta aleatoria realizada en el Centro Histórico de la Ciudad de México en 2022. Los resultados indican que cuando la ciudadanía percibe una menor presencia del crimen y tiene una mayor confianza en las autoridades, especialmente en la policía, su satisfacción con el gobierno y el régimen democrático aumenta.
Estrategias de supervivencia y cohesión vecinal ante la COVID-19 en Nezahualcóyotl y Centro Histórico
Authors: Martínez-Sánchez Julio César
Published: July 2024

La pandemia en 2020 planteó diversos desafíos para los hogares mexicanos, sobre todos aquellos donde alguno de sus miembros tuvo la enfermedad. Este artículo analiza las estrategias de supervivencia que desarrollaron los hogares y las comunidades que habitan en el Centro Histórico de la Ciudad de México y el municipio de Nezahualcóyotl. Se definieron tres variables para analizar dichas estrategias: la cohesión social, la intervención de los vecinos en acciones colectivas y la participación comunitaria. Usando los datos recolectados por la encuesta “Empoderamiento ciudadano para mejorar la seguridad pública y el estado de derecho en la Ciudad de México”, junto con modelos econométricos, se evidenció que ambas comunidades destacaron por su cohesión y participación vecinal. En Nezahualcóyotl, la familia y las relaciones vecinales fueron esenciales, mientras que en el Centro Histórico prevaleció la solidaridad entre vecinos.
Cost Evaluation of the Ontario Virtual Urgent Care Pilot Program: Population-Based, Matched Cohort Study
Authors: Tarride Jean-Eric , Hall Justin N , Mondoux Shawn , Dainty Katie N , McCarron Joy , Paterson J Michael , Plumptre Lesley , Borgundvaag Emily , Ovens Howard , McLeod Shelley L
Published: July 2024

Background

In 2020, the Ministry of Health (MoH) in Ontario, Canada, introduced a virtual urgent care (VUC) pilot program to provide alternative access to urgent care services and reduce the need for in-person emergency department (ED) visits for patients with low acuity health concerns.

Objective

This study aims to compare the 30-day costs associated with VUC and in-person ED encounters from an MoH perspective.

Methods

Using administrative data from Ontario (the most populous province of Canada), a population-based, matched cohort study of Ontarians who used VUC services from December 2020 to September 2021 was conducted. As it was expected that VUC and in-person ED users would be different, two cohorts of VUC users were defined: (1) those who were promptly referred to an ED by a VUC provider and subsequently presented to an ED within 72 hours (these patients were matched to in-person ED users with any discharge disposition) and (2) those seen by a VUC provider with no referral to an in-person ED (these patients were matched to patients who presented in-person to the ED and were discharged home by the ED physician). Bootstrap techniques were used to compare the 30-day mean costs of VUC (operational costs to set up the VUC program plus health care expenditures) versus in-person ED care (health care expenditures) from an MoH perspective. All costs are expressed in Canadian dollars (a currency exchange rate of CAD $1=US $0.76 is applicable).

Results

We matched 2129 patients who presented to an ED within 72 hours of VUC referral and 14,179 patients seen by a VUC provider without a referral to an ED. Our matched populations represented 99% (2129/2150) of eligible VUC patients referred to the ED by their VUC provider and 98% (14,179/14,498) of eligible VUC patients not referred to the ED by their VUC provider. Compared to matched in-person ED patients, 30-day costs per patient were significantly higher for the cohort of VUC patients who presented to an ED within 72 hours of VUC referral ($2805 vs $2299; difference of $506, 95% CI $139-$885) and significantly lower for the VUC cohort of patients who did not require ED referral ($907 vs $1270; difference of $362, 95% CI 284-$446). Overall, the absolute 30-day costs associated with the 2 VUC cohorts were $18.9 million (ie, $6.0 million + $12.9 million) versus $22.9 million ($4.9 million + $18.0 million) for the 2 in-person ED cohorts.

Conclusions

This costing evaluation supports the use of VUC as most complaints were addressed without referral to ED. Future research should evaluate targeted applications of VUC (eg, VUC models led by nurse practitioners or physician assistants with support from ED physicians) to inform future resource allocation and policy decisions.
The Use of Telepsychiatry Services in Emergency Settings: Scoping Review
Authors: Shalev Ligat , Eitan Renana , Rose Adam J
Published: July 2024

Background

Telepsychiatry (TP), a live video meeting, has been implemented in many contexts and settings. It has a distinct advantage in the psychiatric emergency department (ED) setting, as it expedites expert assessments for psychiatric patients. However, limited knowledge exits for TP’s effectiveness in the ED setting, as well as the process of implementing TP in this setting.

Objective

This scoping review aimed to review the existing evidence for the administrative and clinical outcomes for TP in the ED setting and to identify the barriers and facilitators to implementing TP in this setting.

Methods

The scoping review was conducted according to the guidelines for the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews). Three electronic databases were examined: PubMed, Embase, and Web of Science. The databases were searched from January 2013 to April 2023 for papers and their bibliography. A total of 2816 potentially relevant papers were retrieved from the initial search. Studies were screened and selected independently by 2 authors.

Results

A total of 11 articles were included. Ten papers reported on administrative and clinical outcomes of TP use in the ED setting and 1 on the barriers and facilitators of its implementation. TP is used in urban and rural areas and for settings with and with no on-site psychiatric services. Evidence shows that TP reduced waiting time for psychiatric evaluation, but in some studies, it was associated with prolonged total length of stay in the ED compared with in-person evaluation. Findings indicate lower admission rates in patients assessed with TP in the ED. Limited data were reported for TP costs, its use for involuntary commitment evaluations, and its use for particular subgroups of patients (eg, those with a particular diagnosis). A single paper examined TP implementation process in the ED, which explored the barriers and facilitators for implementation among patients and staff in a rural setting.

Conclusions

Based on the extant studies, TP seems to be generally feasible and acceptable to key stakeholders. However, this review detected a gap in the literature regarding TP’s effectiveness and implementation process in the ED setting. Specific attention should be paid to the examination of this service for specific groups of patients, as well as its use to enable assessments for possible involuntary commitment.
Developing Human Resources in the Era of Digital Transformation in Vietnam: Current Status and Solutions
Authors: Trung Nguyen Duc
Published: July 2024

Digital transformation is becoming an inevitable and powerful trend across all sectors of socio-economic life, contributing to the enhancement of business efficiency, government management, and the quality of life for the public. High-quality human resources with digital skills and adaptability to new technologies are crucial to the success of digital transformation. However, Vietnam is currently facing numerous challenges in developing IT human resources. This paper examines the current state of human resources in Vietnam’s digital transformation, discusses the solutions that have been and are being implemented, and proposes specific steps to develop high-quality human resources. The policies and training programs from the government, enterprises, and educational institutions are analyzed and evaluated. Finally, the paper provides recommendations on policies and long-term strategies to improve the quality and quantity of IT human resources, ensuring that Vietnam can seize opportunities from the Fourth Industrial Revolution.
Evaluation of iQiyi Financial Pressure Based on Entropy Weight -TOPSIS Method
Authors: Xu Yuwen
Published: July 2024

Financial pressure refers to the behavioral pressure formed by internal and external factors acting on the financial activities of enterprises, which is the pressure that enterprises must bear in the actual production and management activities. This paper takes iQiyi Company as a case, selects financial statement data from 2019 to 2023, selects indicators from five dimensions of solvency, operating capacity, profitability, development capacity and cash flow capacity, and makes a comprehensive evaluation of its financial pressure by combining entropy weight-TOPSIS evaluation system. The results showed that iQiyi's financial situation continued to deteriorate from 2019 to 2021, began to improve in 2022, and 2023 was the best financial situation and faced the least financial pressure. In the end, it provides suggestions on how to prevent and control financial pressure of iQiyi, and provides reference for other Internet video enterprises in China to evaluate and prevent financial pressure.
Family or Non-Family Ownership Type Impact, in the enterprise risk management: a contingency perspective
Authors: Silva Michael de Alencar , Silva Marcia Zanievicz da
Published: July 2024

The growing research interest on family businesses motivated this study, which aimed to assess the family control impact in the relationship between contingency variables and Enterprise Risk Management (ERM), and its influence on organizational performance. ERMI was quantified based on the index proposed by Gordon et al (2009). The results show that, although the literature substantially relates the use of risk management, to non-family firms, family firms that have higher risk management index, also have an effect on performance. This may suggest that family ownership type positively influences ERM use, consequently influences in a higher market performance. The results of this study contribute to literature and organizational studies on ownership type impact in the relationship between ERM and contingency variables, by confirming the inferences that family firms that have higher ERMI, present better market performance.
Advancements in Coordination Chemistry and Trends in the Chemical Industry: Applications and Implications
Authors: Ebenezer Dr. N. Stanley
Published: July 2024

Abstract: Metal foams offer a compelling combination of properties, including low density, sound absorption, high compressive strength, and stiffness. This project focuses on the damping behavior of aluminum foams for applications in automobiles and various industries. Aluminum foams excel in being lightweight, exhibiting high compressive strength, and offering excellent stiffness. However, their wear resistance is a limitation. To address this and enhance durability, a diamond-like carbon (DLC) coating is applied to the surface. The complex geometry and surface of aluminum foams pose a challenge for the coating process. Therefore, the project employs the well-established cataphoretic deposition technique, an electro-chemical process. This research investigates the potential of carbon-coated aluminum foam for vibration mitigation in automobiles and industrial applications by analyzing its damping properties and improved wear resistance through the DLC coating
Predicting Student Success and Tailoring Learning Experiences: An Exploration of LSTMs and Causal Analysis
Authors: Sharma Nidhi
Published: July 2024

Abstract: This paper explores the potential of machine learning to predict student success and personalize the learning experience. The research focuses on using Long Short-Term Memory (LSTM) networks and causal analysis to achieve these objectives. A comprehensive student dataset from Kaggle was employed in this study, and various machine-learning algorithms, including Logistic Regression, Decision Tree, Random Forest, and K-Nearest Neighbors, were systematically compared and evaluated. Logistic Regression emerged as the most effective model for predicting student success based on specific data characteristics. Beyond prediction, the paper delves into the application of causal analysis to identify factors influencing student performance. Understanding these factors enables the development of a system that recommends personalized learning interventions tailored to individual student needs. The potential benefits of this approach for students, educators, and society are significant, providing a pathway to more effective and personalized education. The paper also addresses the importance of responsible data practices and ethical considerations in the implementation of such technologies.
Innovative Die Component Manufacturing by Using Lost Wax Casting and 3D Printing Processes
Authors: Sivasatyanand Marukurthi
Published: July 2024

Abstract: The project focuses on crafting a casting die for designing the micro jet nozzle of an aircraft engine. The manufacturing of the casting die involves various steps outlined in the procedure. Regular stone material, categorized under ceramic parts, is utilized for constructing the casting die. The primary objective of this project is to integrate additive manufacturing into the production of automobile parts and the construction of mechanical components. We are going to fabricate d casting die by using different material other than regular casting material which is more accurate. This project involves 3Dprinting technology and SLA printing technologies.
Developing fun e-modules for engaging English learning in primary school
Authors: Muzammil Lasim , Purnawati Maria , Andy A. , Arifani Finda Hikmah
Published: July 2024

Teaching material modules in English for primary school can be easily obtained as it is already included in the digital era. However, finding appropriate ones for the instructional process for learners whose internet connection is difficult remains low. Therefore, this research aims to produce a valid and feasible English E-module as a learning medium. The ADDIE approach is used, which stands for analysis, design, development, implementation, and evaluation. The study tested validity by material, media, and language validators to determine the quality of the media developed. The results of this study are that the overall average validation of material is 77.2%, media validation is 78.5%, and language validation gets 87.5% with the "Excellent" category. Next, to determine the feasibility of the English E-module researchers analyzed English teachers and students of grade 5A. Results obtained from English teachers got 81.5% and from 5A students got 88.4% with the "Excellent" category. The English E-module as the learning media developed has been valid and feasible. Thus, English teachers for primary school and EFL learners may take advantage to make use of the module. Other researchers should add more skills such as listening by providing audio files and using different levels for the next study.
Strategic Sentiments: The European Commission’s Social Media Response to the Russia-Ukraine Crisis
Authors: Tasente Tanase , Butacu Maria , Rus Mihaela
Published: July 2024

The use of online platforms by the European Commission, particularly during the Russia-Ukraine crisis in the context of the digital age, offers informative insights about current crisis communication. Between February 1 and October 26, 2022, this study analysed the Commission’s activities on the primary platforms, Facebook and Twitter. To carry out this analysis, the study used RStudio and the SentimentAnalysis package within R. The Blake & Mouton’s Grid was additionally employed as a reference point to extract the strategic dimensions. The data revealed distinct usage patterns by the Commission: Twitter acted as a channel for quick and immediate updates, making use of its real-time communication capabilities, while Facebook was used for more detailed conversations with a wider audience. Regarding sentiment, most of the Commission’s communications had a neutral or positive tone. Nevertheless, there were cases where certain critical issues prompted the Commission to take definite positions, providing insight into their strategic intent and priorities. To summarise, the European Commission’s online communication during the relevant period showed an informed and platform-specific methodology. Through comprehending and improving the platforms' functionalities and audience preferences, the Commission established a communication structure that can be utilised as a model for entities that intend to simplify their digital interaction procedures, particularly in the event of a crisis.
¿Por qué comunicar y apropiarse de las ciencias? Respuestas desde la extensión universitaria
Authors: Legaria Juan Ignacio
Published: July 2024

“Compartir las ciencias. Comunicación y apropiación de conocimientos en la extensión universitaria” nos invita a pensar el lugar de la comunicación pública de las ciencias (CPC) y Apropiación Social del Conocimiento (ASC) en las prácticas de la extensión universitaria. Mediante un estudio de caso -Universidad Nacional de Entre Ríos-, recorre diferentes devenires históricos de la CPC, de la ASC y de las distintas concepciones de la extensión universitaria en América Latina.