bluuebunny/crossref_metadata_2025 huggingface dataset:
Emprendimiento académico en universidades del departamento del Atlántico
Authors: Naranjo Gloria María , Sánchez Rojas Damaris
Published: March 2023

Desde su tercera misión las Universidades asumen el compromiso de convertirse en agentes generadores de crecimiento social-económico y del mejoramiento de la calidad de vida en su entorno de influencia, a partir del desarrollo tecnológico y las posteriores transferencias de estas investigaciones y proyectos innovadores al entorno empresarial y la sociedad. Este artículo a parte de un estudio exploratorio-descriptivo, dirigido a una muestra selectiva de investigadores, que han desarrollado acciones de transferencia tecnológica vinculados a Universidades Públicas y Privadas del Departamento del Atlántico, identificó las particularidades del perfil del investigador emprendedor considerando características propias, habilidades, motivaciones y percepción del riesgo, para evidenciar estas condiciones desde una perspectiva personal y el contexto institucional, destacándose una base importante de acciones y motivaciones hacia un contexto del emprendimiento académico en Universidades del Departamento y factores institucionales que cada vez se hacen más propicios para favorecer estos procesos. A partir de las variables descritas y analizadas en la investigación se sugieren tres tipos de estrategias que permitan el desarrollo de este rol. Estas son: Estrategias de fomento; de Promoción y capacitación; y de evaluación.
El uso de las TIC´ s detonador clave del proceso enseñanza/aprendizaje
Authors: Pérez Pérez Isabel , Orozco Gutiérrez Mario , Hidalgo González Ramiro A.
Published: March 2023

Este estudio analiza el uso de las TIC’s en escuelas primarias de Tonalá, Chiapas como detonador clave en el aprendizaje para los alumnos de nivel básico. Con este propósito se elaboró una encuesta semi-estructurada que permitió obtener datos a una muestra de 187 estudiantes, donde un 51.34% son niñas y un 48.66% son niños, el promedio de edad es, 56.68% de 11 años, 26.74% de 12 años, 11.23% de 13 años y el 5.35% restante de 10 años. Concluyendo que existen limitaciones tanto pedagógicas, didácticas, estratégicas y organizacionales en los procesos de enseñanza aprendizaje, por la falta de infraestructura, seguidamente las carencias pedagógicas y didácticas del profesor que les imparte la materia de nuevas tecnologías y no dominan esta herramienta tecnológica, disminuyendo el conocimiento activo en los educandos, incidiendo negativamente en la actitud de los mismos y en la calidad del nuevo modelo educativo 2016. Pero si se mejoran significativamente, las competencias necesarias para la vida diaria afines a la exploración, clasificación y análisis reflexivo de los datos en la Web 2.0. Optimizando las habilidades de expresión oral y la conciencia del educando con respecto al uso de la computadora en el desarrollo sostenible en la educación primaria.
Empresas B: un diagnóstico sobre su aplicabilidad
Authors: Rodríguez – Téllez Fabián , Pacheco - Sánchez Carlos Alberto
Published: March 2023

La investigación abarca una innovadora forma de dar aval a las empresas socialmente responsables mediante el Sistema B una acción estratégica cuya finalidad no es ser solamente “las mejores empresas del mundo sino las mejores para el mundo”. Como problemática principal se definió la escasez de información de las empresas B en la ciudad de Ocaña, esto implica no asegurar el beneficio que la certificación de la misma trae. El propósito de esta investigación fue indagar sobre las posibles causas de la no implementación de empresas B en Ocaña, asimismo, determinar sus prácticas de responsabilidad social y ambiental. La investigación fue cuantitativa y de tipo descriptivo. Se encontraron cero empresas certificadas y un alto porcentaje de desconocimiento sobre el tema de estudio.
ENHANCING INFORMATION ON STAGE AT DIAGNOSIS FOR CHILDHOOD CANCER IN AFRICA
Authors: Liu Biying , Abraham Natasha , Chitsike Inam , couitchere line , Balagadde-Kambugu Joyce , Stévy Nsimba Makouanzi Alda , PONDY ANGELE , Renner Lorna , Parkin Donald Maxwell
Published: March 2023

Background/Purpose Stage at diagnosis is an important metric in
treatment and prognosis of cancer, and also in planning and evaluation
of cancer control. In sub-Saharan Africa (SSA), for the latter, the only
data source is the population-based cancer registry (PBCR). For
childhood cancers, the “Toronto Staging Guidelines” have been
developed to facilitate abstraction of stage by cancer registry
personnel. Although the feasibility of staging using this system has
been shown, there is limited information on the accuracy of staging.
Methods A panel of case records of 6 common childhood cancers
was established. 51 cancer registrars from 20 SSA countries staged these
records, using Tier 1 of the Toronto guidelines. The stage that they
assigned was compared with that decided by two expert clinicians.
Results The registrars assigned the correct stage for 53-83%
of cases (71% overall), with the lowest values for acute lymphocytic
leukaemia (ALL), retinoblastoma and non Hodgkin lymphoma (NHL), and the
highest for osteosarcoma (81%) and Wilms tumour (83%). For ALL and
NHL, many unstageable cases were mis-staged, probably due to confusion
over the rules for dealing with missing data; for the cases with
adequate information, accuracy was 72-73%. Some confusion was observed
over the precise definition of three stage levels of retinoblastomas.
Conclusions A single training in staging resulted in an
accuracy, for solid tumours, that was not much inferior to what has been
observed in high income settings. Nevertheless, some lessons were
learned on how to improve both the guidelines, and the training course.
Hetero-structure Junctionless MOSFET with high-k corner spacer for high-speed and energy-efficient applications
Authors: sarkar angsuman , Mukherjee Mainak , Ghosh Niloy , Debnath Papiya , Chanda Manash
Published: March 2023

In this research work, Hetero-structure Junction-less MOSFET
having a Silicon-Germanium source and high-k inner corner spacer
is proposed and investigated. In this article, we have shown that the
introduction of a high-k dielectric material in the inner corner
spacer and a low-k dielectric material in the rest of the spacer
in the optimally designed device leads to a substantial reduction in
parasitic capacitances, resulting in higher operating speed. It was also
shown that proper doping in the drain-source underlaps regime, can
improve the short channel performance (SCP) of the device by increasing
the effective gate length. The optimally designed proposed device
produces on current (I) ~0.33 mA and
off current (I) ~5.55fA along with
I/I=6.08x10,
Sub-threshold slope (SS)=59.6 mV/decade and drain induced barrier
lowering (DIBL)=82.2 mV/V. This paper also highlights the performance
improvement of the proposed device in terms of both speed and energy
consumption, as compared to that of junctionless Double Gate MOSFET when
implemented as logic gates.
Perspective of patients with First-Episode Psychosis, their relatives, and mental health professionals on the design and usability of an app in clinical practice.
Authors: Domínguez Marta , Sánchez-Balcells Sara , Vila-Badia Regina , Bergadà-Sánchez Esther , Vilaplana Miriam , ochoa susana , Huerta-Ramos Maria Elena , Cacho Nuria Del , Usall Judith , Peláez Trini , Coromina Marta
Published: March 2023

Aims: Therapeutic non-compliance remains the main difficulty for people
with psychotic disorders, standing around 50% in people with
schizophrenia. Lack of treatment adherence, either partial or total, to
medication has economic and clinical consequences. E-health technologies
may be a promising therapeutic tool to improve adherence, with the
subsequent reduction in clinical and economic burden. Incorporating
Information and Communication Technologies (ICT) has improved the
information patients receive and the relationship between health
professionals and patients. Our aims were to know the preferences on how
technologies in mental health treatment should be for use in clinical
practice, and to learn about the opinion and preferences on the use of
technologies in mental health treatment from the perspectives of
patients with FEP, their relatives, and mental health professionals.
Methods: A cross-sectional quantitative study was carried out by experts
in psychosis and technologies. 41 patients with a diagnosis of
first-episode psychosis (FEP), 18 relatives and 49 mental health
professionals were included in the study. Results: An app directed to
people with psychosis would be well received by users if it contains
psychoeducational material, offers reminders for scheduled visits and
treatment and allows online consultations. Conclusions: Co-creating an
app with users, their families and mental health professionals allows
incorporating their preferences to increase its use, improve outpatient
care and creating an app that is viable in clinical practice.
Title：Childhood risk factors influencing adult asthma：a systematic review and meta-analysis
Authors: Liu Bowen , Sun Bingqing , Zhao Ruiheng , Li Yun , Xiang Min , Lin Jiangtao
Published: March 2023

Background：Despite the challenge of associating childhood risk
factors with adult asthma, a systematic synthesis of evidence on the
risk factors is lacking. We performed a systematic review and
meta-analysis of the association between childhood risk factors and
adult asthma. Methods：We systematically searched the PubMed,
EMBASE, Cochrane Library and Web of Science electronic databases from
the inception to our last search date (10 November 2022). The search
strategy included key words for risk childhood risk factors and adult
asthma. The Newcastle-Ottawa scale (NOS) was used to assess the quality
of the included studies. Results: Of 16 eligible articles, 16
domains of childhood risk factors were assessed. Bronchiolitis/wheezing
(pooled adjusted OR=5.02; 95% CI: 2.88-8.75; I
=58%; number of outcomes [N] =8), eczema (pooled
adjusted OR=2.06; 95% CI: 1.44-2.95; I =82%; N=7),
hay fever (pooled adjusted OR=3.31; 95% CI: 2.26-4.85; I
=0%; N=2), AHR (pooled adjusted OR=2.73; 95% CI:
1.52-4.88; I =0%; N=2) and pool lung function
(pooled adjusted OR=2.88; 95% CI: 1.41-5.87; I =0%;
N=2) during childhood increased the risk of adult asthma and no
association were detected for positive reaction of SPT (pooled adjusted
OR=1.42; 95% CI: 0.64-3.17; I =70%; N=2) and adult
asthma risk. There was too little evidence to draw conclusion for
childhood asthma, rhinitis, sleep duration patterns, abuse, early
menarche, overweight, household income, ever-smoking status during
childhood, intense obstructive disease and furry pets at home in
infancy. Conclusion: Childhood bronchiolitis/wheezing, eczema,
hay fever, airway hyperresponsiveness (AHR) and poor lung function were
associated with an increased risk of adult asthma. The identified risk
factors need more interventions timely to achieve the goal of preventing
adult asthma.
Homology Modeling of Carbonic Anhydrase from Dunaliella Viridis
Authors: Azimuddin Syed Muhammad Iqbal
Published: March 2023

Under salt and toxic metal stress condition, genetic make-up and
proteins including some enzymes undergo specific changes to combat the
posed harsh environment. Carbonic anhydrase is ubiquitous enzyme
associated with respiratory disorder and cancerous condition. Strategies
investigated and adopted by microorganisms to cope with hypersaline by
bioinformatics analysis including homology modeling, Zinc metal
interaction prediction, sequence analysis for Carbonic Anhydrase. This
study shows that carbonic anhydrase acquired more acidic residues on its
surface as countermeasure and may form salt bridges with positive ions
in response to hypersaline environment. It also reduced its surface area
and had more polar residues. Zinc metal interaction with Nitrogen of
Histidine residues were almost conserved in the studied and modelled
structure with fewer changes in catalytic region of sequence pattern.
Salt tolerance achieved by foster promising approaches at the genetic
and proteomic level by modifying protein sequence. Surface residues are
exposed to a hypersaline medium and are mainly composed of polar and
acidic residues. The enzyme exists in its compact form and reduces its
surface footprint exposed to outside environment. Beta pleated secondary
structure configuration increases flexibility to counter, ions
disruptive effect.
Enhanced Zinc-Ion Batteries through the Coating of Surface-Functionalized Graphene on the Anode: A Promising Solution for Uniform Zinc plating
Authors: Kim Seoyeong , Ryu Gyeong Hee , An Geon-Hyoung
Published: March 2023

Aqueous zinc-ion batteries (ZIBs) have attracted attention as
large-scale energy storage systems because of their excellent safety,
high capacity, eco-friendliness, and low cost. However, the utilization
of acid electrolytes in ZIBs causes non-uniform dendrite growth at the
anode, which limits their capacity and cycle life. To solve this issue,
an advanced anode with high electrical conductivity and good interfacial
stability is required. In this study, for the first time,
surface-functionalized graphene was used as a protective layer on the
anode surface. The resulting ZIB exhibited superior energy storage
performance and reversibility, with an improved specific capacity of
260.0 mA h g−1 at a current density of 0.3 A g–1, and an excellent
long-term stability and a specific capacity of 139.0 mA h g-1 during 150
cycles at current density of 2.0 A g-1. The proposed method is an easy
and feasible method for addressing the anode issues of ZIBs, thus
providing new opportunities for stable and high-performance ZIBs.
Semantic segmentation algorithm based on transformer In Mobile Edge Computing
Authors: Jia XiBei
Published: March 2023

The semantic segmentation task is a basic task in the field of Mobile
Edge Computing, which requires the classification of each pixel in the
image, which has higher requirements for classification accuracy than
the image classification task. Fine-grained classification tasks
requires more detailed information, in addition to classifying according
to the semantic information and spatial information of each pixel unit
and the surrounding pixels, it is also necessary to distinguish from
adjacent pixels, which is one of the main difficulties of the current
segmentation task. However, high-resolution input images can bring more
detailed information, but they are often accompanied by expensive
computing costs, so smaller resolution images will be put in practical
applications to ensure computing speed. As another task of computer
vision, super-resolution recovery focuses on extracting information from
low-resolution pictures and reasoning into higher-resolution feature
maps. Its recovered detail features contribute to the high-precision
classification of semantic segmentation tasks. Considering the
complementarity of the two tasks, considering the use of transformer as
a feature extractor, the design algorithm realizes semantic segmentation
and super-resolution recovery tasks at the same time, multi-task
learning can ensure that the backbone network obtains more common
high-dimensional information, and then we use the results of
super-resolution recovery branches to guide the semantic segmentation
task to provide more detailed information and finally obtain an
effective improvement on the original baseline.
Cyclic and Torsional Fatigue Resistance of a New Rotary File on a Rotary and Reciprocating Motion.
Authors: Só Gabriel Barcelos , Siocheta Giovana , Calefi Pedro , Alcalde Murilo , Vivan Rodrigo , Duarte Marco Antonio , Só Marcus Vinícius , rosa ricardo
Published: March 2023

Introduction: This study aimed to evaluate the cyclic and
torsional fatigue resistance of a new nickel-titanium (Flat File 25.04)
instrument on continuous and reciprocating motion. Methods:
Sixty instruments of the ProDesign Logic2 25.03 and 25.05 (Easy
Equipamentos Odontológicos, Belo Horizonte, Brazil), and MK Flat File
25.04 (n=20) (MK Life, Porto Alegre, Brazil) were used. For the cyclic
fatigue test, an artificial stainless steel simulated canal with an
angle of 60° and a radius of curvature of 5mm located 5mm from its tip
was used. Torque and angle of rotation at failure of instruments on
torsional fatigue test was based on the ISO 3630-1 protocol, in which
the 3mm tip of each instrument was fixed and connected to an electric
motor and a load cell. The fractured surface of each fragment was
examined by scanning electron microscopy. Data were analyzed using 1-way
analysis of variance and Tukey’s test with a significance level of 5%.
Results: Flat File 25.04 had lower cyclic fatigue in both
kinematics than the Logic instruments (P < .05). Reciprocating
motion improved the cyclic fatigue of the tested instruments (P
< .05). Flat File 25.04 had similar torque to Logic2 25.05 (P
< .05), and both were superior to Logic2 25.03 (P <
.05). The angular deflection values were different for the three tested
instruments (P < .05), in the decreasing order: Logic2 25.03,
25.05, and Flat File 25.04. Conclusion: Flat File presented
acceptable resistance to cyclic and torsional fatigue resistance.
Reciprocating motion improved the cyclic fatigue resistance of the
instruments and can be considered when using programmable motors.
DRUG PROVOCATION TESTS IN CHILDREN: ALL THAT GLITTERS IS NOT GOLD
Authors: Moral Luis , Mori Francesca
Published: March 2023

A proper allergy work-up, based on the gold standard drug provocation
test (DPT), usually rules out suspected drug hypersensitivity in
children. These tests are generally open, given their high efficiency
compared to double-blind placebo-controlled DPTs. Although their
negative predictive value is excellent, no studies have calculated their
positive predictive value, highly dependent on the prevalence of the
disease. Most studies have found a rate of less than 5% to 10% of true
beta-lactam hypersensitivity in children. Given this low prevalence
(pre-test probability), a few false positive results can significantly
reduce the estimated positive predictive value. False positives may
arise from the nocebo effect during the test, including nocebo by proxy,
or from observer bias, which depends on professional expertise and
organizational circumstances. Some studies have found a high rate of
tolerance on a second DPT in children who failed the first, but these
results may be affected by the interval between the two tests, of a year
or more in most cases, reflecting a loss of hypersensitivity over time.
Taking into account the low rate of positive DPTs, with commonly mild
reactions, we suggest confirming non-severe positive DPTs with a second
provocation performed soon after the first, especially in the case of
beta-lactam antibiotics, in order to improve the diagnostic accuracy,
de-label more patients, and achieve a better estimation of true drug
hypersensitivity prevalence.
Fabrication of antibacterial and biomimetic chitosan-based hydrogel embedded with Ag/MXene nanocomposites as photothermal centers for solar steam generation and desalination
Authors: Hao Shuyan , Chen Xintong , Zhao Tingting , Jiang Yanyan , Han Hecheng , Liu Jiurong , Dong Lun , Wang Fenglong
Published: March 2023

Solar-driven interfacial steam generation is considered as a sustainable
and cost-effective approach to produce freshwater from seawater or
sewage, whereas unavoidable microbial contamination and low evaporation
efficiency remain challenges. Herein, we report a high-performance and
antibacterial 3D Ag/MXene@chitosan hydrogel (described as AM/Ch gel)
evaporator through incorporation of two-dimensional (2D) Ag/MXene
composites into three-dimensional (3D) chitosan hydrogel. Thanks to the
synergistic contributions from chitosan hydrogel matrix and Ag/MXene
composites, 3D AM/Ch gel could completely eradicate both E. coli and S.
aureus under simulated solar light irradiation, ensuring the production
of microbial-free drinkable water. Benefiting from the superb
photo-to-thermal conversion behavior and feasible water transportation
in the 3D networks, the prepared AM/Ch gel-based evaporator exhibits
intriguing solar steam generation performances, with evaporation rate
and solar energy utilization efficiency of 3.22 kg m–2 h–1 and 94.9%
under irradiation of 0.2 W cm–2, respectively. As a demonstration, the
quality of collected liquid water evaporated from seawater adopted from
the Yellow Sea, China, well satisfies the requirement for drinking water
from World Health Organization. Moreover, the AM/Ch gel exhibits high
flexibility and chemical stability, excellent dye molecules adsorption
capacity and self-cleaning ability, indicating its promising potential
for durable and sustainable water distillation.
Strong Electron-Transfer in Covalently Integrating Cu(I)-Triazine Frameworks Enabling Benchmark Radionuclide Capture
Authors: Guo Liecheng , Yu Zhiwu , Xia Yongming , Zhang Qingyun , Gong Lele , Zhang Lipeng , Luo Feng
Published: March 2023

Rational construction of strong electron-transfer materials remains a
challenging task. Herein, we show a fundamental design rule for
construction of strong electron-transfer materials through covalently
integrating electron-donoring Cu(I) clusters and electron-withdrawing
triazine monomers together. As expected, the two resultant
Cu(I)-triazine frameworks (Cu-CTFs) showed strong electron transfer up
to 0.46|e| from each Cu(I) metal center to each
adjacent triazine fragment, and the size of triazine monomer was found
to give tunable ability for electron transfer. Accompanied to the
stronger electron transfer is the observation of more narrow bang gap
and good spatial separation of HOMO and LUMO level. This finally leads
to good spatial separation of photo-generated electron-hole pairs and
function units for boosting photocatalytic reduction of uranium under
ambience and no sacrificial agent with ultrahigh removal efficiency up
to 99.7%, and good charge separation of [I+][I5-] for boosting
I2 immobilization under extremely rigorous conditions with benchmark I2
uptake of 0.32 g/g. The results not only have opened up a structural
design principle to access electron-transfer materials, but also solved
several challenging tasks in the field of radionuclide capture and CTFs.
Is infrasound the main driver of evolutionary size growth of some Mammalian taxa? Thoughts on the connection between vertebrate evolution and the long-range communication channels and setting up the communication channel rule
Authors: Bujtor László
Published: March 2023

Tendency of the vertebrates to increase body sizes during evolution is
recognized in the 19th century. Beside the contradictory Cope’s rule,
other ‘rules’ were recognized, however not fully explained the
evolutionary size growth phenomenon. Recently the resource rule offered
a plausible explanation to this, although it left open the rapid
evolutionary size growth of the Mysticeti (Mammalia, Vertebrata). Here,
the rapid and significant evolutionary size growth of Mysticeti and the
odontocete sperm whale is explained by the innovative application of the
long-range communication channels. Regarding all analysed extant species
using infrasound either in aquatic or terrestrial environs for
long-range communication, a correlation between the body size/mass and
maximum propagation of the applied infrasound is recognized. Correlation
of the body sizes of these infrasound generating vertebrate taxa with
the maximum range of audibility reflects the acoustical characteristics
of the applied long-range communication channels. The wider the
audibility in the communication channel is, the greater the body size of
the species using the SOFAR channel for long-range communication. Other,
non-aquatic, terrestrial vertebrate species (African elephants,
cassowary) also present the same phenomenon suggesting that application
of the long-range communication channels may have universal role in
evolutionary size growth among social animals.
Study on mechanical properties and constitutive model of rock-like materials under acid corrosion
Authors: Liu Yongsheng , Liu Wang , Wang Cui
Published: March 2023

Mechanical specimens of rock-like materials were prepared from cement,
gypsum, quartz sand and water. After the specimens were formed, they
were immersed in acid solutions of pH=2 and pH=4 for 60d and 90d
respectively, and uniaxial compression tests were carried out before and
after immersion to obtain mechanical parameters.Quantification of the
extent of degradation of mechanical parameters and introduction of acid
corrosion damage variables.Based on the Lemaitre strain equivalence
principle, the Weibull distribution statistical damage model for
rock-like micro-fractures was combined with a correction for damage
variables that takes into account the effect of residual strength to
derive a damage constitutive model under acid corrosion.The theoretical
damage constitutive curves were compared with the experimental curves to
analyse the applicability of the constitutive equation.The results show
that after corrosion by the acid solution, the initial
compression-density portion of the stress-strain curve of the specimen
becomes longer and the elastic deformation phase becomes shorter,the
elastic modulus, peak stress and residual strength of the specimen all
decrease, and the final strain of the compression-density portion, final
elastic strain, peak strain and residual strength strain values all
increase,the longer the maintenance time and the more acidic the
solution, the more significant the above characteristics are.Comparing
the theoretical and experimental curves, the damage constitutive model,
which includes acid damage and residual strength corrections, agrees
well in the elastic, plastic and post-peak phases.
Minimum inertia estimation of power-electronized power system considering multi-resource frequency response characteristics
Authors: Zhou Xia , Liu Yishi , Dai Jianfeng , (GE) Yi Tang , Zhang Tengfei , Xue Feng
Published: March 2023

With the large-scale grid connection of power electronic power sources,
the power system gradually exhibits the characteristics of ‘low
inertia’, and the indexes of frequency characteristics are getting
closer to the safety critical value, which seriously affects the
frequency safety of the system operation. To quantitatively analyze the
minimum inertia requirement of the power electronic power system under
the condition of multi-resource participation in frequency regulation
(FR) when it is disturbed by active power, based on the improved
frequency response model of the multi-machine system, this paper
proposes a minimum inertia estimation method of the power system
considering the frequency response characteristics. The theoretical
inertia of each FR unit is represented in the form of rotor kinetic
energy, and the calculated inertia of the power system is quantified
based on the Rate of Change of Frequency (RoCoF). The sliding window
technique is used to select the data set with the smallest variance and
obtain the final calculated inertia of the system. The proposed
estimation method takes the initial RoCoF, the maximum frequency
deviation, and the steady-state frequency deviation as the frequency
change constraint indicators, and adds the minimum inertia improvement
measures to reduce the demand for the minimum inertia. Finally, the
PSD-BPA software is used to verify the accuracy of the proposed model.
And based on the improved frequency response model of the multi-machine
system, MATLAB/Simulink is used to verify the proposed minimum inertia
estimation method.
Information Systems Methodologies: A Review
Authors: Osang F.B. , Akoso C.C.
Published: March 2023

information. This work explored the various research methodologies as applied to information system with a focus on application development. Various research methodologies have been extensively discussed with a view to establishing the effects of wrong usage of research method by digging out the importance of the right usage of research methodology. The study reviewed 63 research works highlighting the author, year of research, aim of each research, the method used as well as the result of the finding. The result confirmed that adopting the right method for every research gives accurate results while wrong usage of research methodology leads to false outcome. This has great implications for information system development and sustenance. Keywords: Information Systems, Methodologies, Reviews, Research, Usage, Methods, Outcomes.
Modeling of human mood states from voice using adaptively tuned neuro-fuzzy inference system
Authors: Sahu Biswajeet , Palo Kumar , Chandra Mahesh
Published: March 2023

In this article, an attempt is made to model angry, happy, and neutral human mood states by adaptively tuning the Neuro-fuzzy Inference system for efficient characterization. The algorithm is self-tunable and can provide low-cost and robust solutions to many complex physical world problems. Such analysis can provide crucial inputs to many vivid application domains such as security organization, bio-medical engineering, computer tutors, call centers, banking and finance sectors, criminal investigations, etc. for effective functioning and control. The Surrey Audio-Visual Expressed Emotions (SAVEE) database has been chosen to procure the utterances corresponding to the chosen mood states. Initially, several feature vectors have been extracted that comprise Spectral Rolloff, Spectral Centroid, Spectral flux, Log Energy, Fundamental frequency, Jitter, and Shimmer to develop the desired models. The resultant Adaptive Neuro-Fuzzy Inference (ANFIS) algorithm can distinguish the chosen states based on the simulation models as revealed by the results. Performance measures such as the Root Mean Square Error at the start, convergence, minimal, checking, training, and testing have been investigated to validate the model performances.
Sound analysis to diagnosis inner race bearing damage on induction motors using fast fourier transform
Authors: Karyatanti Iradiratu , Purnomo Firsyaldo , Noersena Ananda , Zulkifli Rafli , Harahab Nuddin , Wibowo Ratno , Budiarto Agus , Wijayanto Ardik
Published: March 2023

The induction motor is a type of electric machine that is widely used for
industrial operations in this modern era. It is an alternating current
electric machine with several advantages, namely cheap, simple construction,
and not requiring excessive maintenance, but has the biggest percentage of
motor fault in the bearings. Therefore, this study aims to identify the
inner race-bearing fault detection system based on sound signal frequency
analysis. The sound signal processing was carried out using the Fast Fourier
Transform (FFT) algorithm to analyze the condition of the inner
race-bearing. The sound signal was used because it does not require direct
contact with the bearing (non-invasive). The fault detection system was
tested with two defects, namely scratched inner race and perforated inner
race bearing. The results gave a successful detection of the condition of
the inner race bearing with a percentage of 81.24%. This showed that the
fault detection system using sound signals with FFT signal processing was
carried out with high accuracy.
Embedded control system for reactive power control in distributed energy resources for voltage regulation in the distributed power system
Authors: Arumugam Vasanth , Kumar Ashok
Published: March 2023

Since more distributed energy resources (DER) are being linked to the
electrical grid, the current distributed power system (DPS) is encountering
additional voltage regulation challenges. Traditionally, on-load tap
changers, step voltage regulators, and switched capacitor banks have been
used for voltage regulation in DPS. However, these sources are insufficient
for voltage regulation in current DPS. As a result, reactive power
assistance from a DER unit based on power electronics is intended to adjust
the voltage in the DPS. In terms of flexibility, security, reliability, and
availability, embedded control systems are now being investigated by
researchers for use in power converter-fed DER units. This paper presents a
method for constructing an embedded controller unit based on XynergyXS for
the power converter controller, which includes reactive power regulation in
the DER unit. Furthermore, it proposes dynamic reactive power control in the
DER unit for enhanced DPS voltage regulation. The suggested voltage control
approach is tested in a MATLAB/Simulink model of a practical 85-bus
distributed power system located in the northern Tamilnadu region, India as
well as a modified IEEE 33-bus system. The new control approach investigates
all potential power grid disruptions. The results reveal that the proposed
reactive power control method in DER units enhances network voltage
regulation while reducing the number of switching operations performed by
static voltage regulating units such as on load tap changers and switched
capacitor banks.
Biomarker Changes Associated With Both Dulaglutide and Cardiovascular Events in the REWIND Randomized Controlled Trial: A Nested Case-Control Post Hoc Analysis
Authors: Gerstein Hertzel C. , Lee Shun-Fu , Paré Guillaume , Bethel M. Angelyn , Colhoun Helen M. , Hoover Anastasia , Lakshmanan Mark , Lin Yanzhu , Pirro Valentina , Qian Hui-Rong , Ruotolo Giacomo , Ryden Lars , Wilson Jonathan M. , Duffin Kevin L.
Published: March 2023

OBJECTIVE

The glucagon-like peptide-1 receptor agonist dulaglutide reduced MACE in the Researching Cardiovascular Events with a Weekly Incretin in Diabetes (REWIND) trial. This article expores the relationship of selected biomarkers to both dulaglutide and major adverse cardiovascular events (MACE).

RESEARCH DESIGN AND METHODS

In this post hoc analysis, stored fasting baseline and 2-year plasma samples from 824 REWIND participants with MACE during follow-up and 845 matched non-MACE participants were analyzed for 2-year changes in 19 protein biomarkers. Two-year changes in 135 metabolites were also analyzed in 600 participants with MACE during follow-up and in 601 matched non-MACE participants. Linear and logistic regression models were used to identify proteins that were associated with both dulaglutide treatment and MACE. Similar models were used to identify metabolites that were associated with both dulaglutide treatment and MACE.

RESULTS

Compared with placebo, dulaglutide was associated with a greater reduction or lesser 2-year rise from baseline in N-terminal prohormone of brain natriuretic peptide (NT-proBNP), growth differentiation factor 15 (GDF-15), high-sensitivity C-reactive protein, and a greater 2-year rise in C-peptide. Compared with placebo, dulaglutide was also associated with a greater fall from baseline in 2-hydroxybutyric acid and a greater rise in threonine (P < 0.001). Increases from baseline in two of the proteins (but neither metabolite) were associated with MACE, including NT-proBNP (OR 1.267; 95% CI 1.119, 1.435; P < 0.001) and GDF-15 (OR 1.937; 95% CI 1.424, 2.634; P < 0.001).

CONCLUSIONS

Dulaglutide was associated with a reduced 2-year rise from baseline of NT-proBNP and GDF-15. Higher rises of these biomarkers were also associated with MACE.
Imatinib-induced erythrodermia in a patient with chronic myeloid leukemia
Authors: Oztas P , Erbasi S , Lenk N , Polat M , Han O , Artuz F , Alli N.
Published: March 2023

This article does not have an abstract.
Effective control of rush progression of CD8+ mycosis fungoides with pegylated interferon
Authors: Fujimura T , Okuyama R , Hashimoto A , Watanabe H , Nakagawa S , Tagami H , Aiba S.
Published: March 2023

This article does not have an abstract.
Importance of herpes simplex virus type-1 (HSV-1) in primary genital herpes
Authors: Nieuwenhuis RF , Van Doornum GJ , Mulder PG , Neumann HA , Van der Meijden WI.
Published: March 2023

Herpes simplex virus type 1 (HSV-1) is increasingly reported in primary genital herpes. Its incidence was assessed among Rotterdam sexually transmitted diseases clinic attendees between 1996 and 2001, and demographic and sexual behaviour factors were evaluated. A retrospective record analysis was performed. All herpes diagnoses were based on cell culture techniques. A clinical scoring system was used to select "primary" cases. Demographic and sexual behaviour characteristics were analysed using logistic regression. The clinical scoring system showed 115 cases of primary genital herpes. HSV-1 (n = 60) was found in 52% and HSV-2 (n = 55) in 48% of cases. The multiple logistic regression model showed that HSV-1 was associated with "oro-genital contact" (p < 0.001) and "having a single partner in the last 2 months" (p = 0.054) and that HSV-2 was associated with "a higher number of sexual partners in the last 6 months" (p = 0.085). Our data confirm the growing importance of HSV-1 in primary genital herpes; oro-genital sex is the main risk factor.
Cutaneous Crohn's disease causing deformity of the penis and scrotum
Authors: González-Guerra E , Angulo J , Vargas-Machuca I , Fariña Mdel C , Martín L , Requena L.
Published: March 2023

This article does not have an abstract.
Apocrine hidrocystoma on the finger
Authors: Numata Y , Okuyama R , Sasai S , Aiba S.
Published: March 2023

This article does not have an abstract.
Micromachining of SiO2 single crystal wafer using femtosecond laser
Authors: Wang You , Mumtaz Farhan , Dai Yutang
Published: March 2023

Silicon dioxide (SiO2), a new type of inorganic nonmetallic material, has been widely used in people's livelihood and military industry. For silicon dioxide-based applications, ultra-precision micromachining is a crucial component that impacts the performance of the finished products. This research reports the precise micromachining of silicon dioxide wafers by femtosecond laser. A prediction model for groove processing size is developed, and an experiment is carried out to investigate the silicon dioxide groove processing technology. The effects of processing parameters that include laser power, scanning speed, scanning repetitions, and defocus amount on the processed properties of grooves, the heat affected zone, and processed roughness are discussed. The variable defocus processing method is proposed, which can effectively improve the inclination angle of the groove wall and the quality of the machined groove. Moreover, scanning electron microscopy is used to analyze the groove morphology, allowing for the improvement of surface quality and processing parameter optimization.
Two-temperature molecular dynamics simulation study of copper thin film irradiation with femtosecond and picosecond laser pulses
Authors: Protim Hazarika Manash , Tripathi Ajay , Nath Chakraborty Somendra
Published: March 2023

Metal targets irradiated with laser pulses have a wide range of applications in thin film preparation, nanomaterial synthesis, bio-medical imaging, and metal ablation. Here, using two-temperature model based molecular dynamics simulation, we investigate laser mediated ablation in copper. Ablation of the film starts with the formation of voids within it. This void forming mechanism at low laser fluences (≤100 mJ/cm2) is studied using both picosecond and femtosecond pulses. At the same fluence, shorter laser pulse transfers more energy to the atoms generating temperatures greater than the melting temperature of the crystal. This increases the kinetic energy of the atoms and they start vibrating with different velocities. If these vibrations cross a threshold of 5 Å per picosecond (500 m/s), voids and faults start appearing in the system. At the same fluence, higher concentration of voids are also created at a faster rate with the femtosecond pulse.
ОБМЕЖЕННЯ НІТРАТНОГО ЕЛЕКТРОЛІТУ МІДНЕННЯ ДЛЯ ШВИДКІСНОГО ЕЛЕКТРОХІМІЧНОГО 3D-ДРУКУ
Authors: Ущаповський Дмитро , Воробйова Вікторія , Плівак Олександр , Мотронюк Тетяна , Васильєв Георгій
Published: March 2023

Проведено випробування локального електроосадження металічної міді з нітратного електроліту з метою визначення можливості застосування цього електроліту в технології електрохімічного 3D-друку. Осадження проводили з використанням платинового нерозчинного анода, розміщеного в поліпропіленовому капілярі діаметром 4 мм. Електроформували об’єкти у формі циліндра висотою 100 мкм та 500 мкм за різної густини струму в стаціонарному та імпульсному режимах. Експериментально осаджені зразки аналізували із застосуванням 3D-профілометрії, порівнювали профіль поверхні з комп’ютерною моделлю та бажаним профілем покриття. Встановлено, що найвища точність друку досягається при густині струму осадження 20 А/дм2 при товщині осаду до 100 мкм. Збільшення товщини осаду, густини струму осадження та застосування імпульсного режиму призводять до зниження точності електроформування та компактності осаду через появу дифузійних обмежень і утворення дендритів. Таким чином, нітратний електроліт дозволяє проводити якісне локальне електроосадження об’єктів з міді висотою до 100 мкм при густині струму до 20 А/дм2.
МОДЕЛЬ ГВИНТОВОГО ЛІНІЙНОГО П’ЄЗОЕЛЕКТРИЧНОГО ДВИГУНА
Authors: Філімонов Сегрій , Бачеріков Дмитро
Published: March 2023

Тема рідких добрив в Україні це тренд останніх кількох років. Внесення рідких мінеральних добрив замість гранульованих під час сівби набуває популярності серед українських сільгосп-виробників. Ця технологія особливо актуальна, на думку експертів, у регіонах із дефіцитом вологи, а також у тих господарствах, де практикується ресурсозберігаюче землеробство. Багато виробників сільгосптехніки сьогодні йдуть шляхом модернізації існуючих моделей ґрунтообробних та посівних машин додатковим обладнанням для внесення рідких добрив. Оснащення передбачає встановлення на раму агрегату спеціальних ємностей для робочого розчину. При цьому, до кожного сошника підводяться широкі шланги, які за допомогою насосів пода-ють добрива. Таким чином, внесення рідких добрив відбувається разом з висівом насіння, за рахунок спеціальних дозаторів. В роботі запропоновано та виготовлено нову конструкцію дозатора з п’єзокерамічним двигуном. У дослідному зразку використовується нове технічне рішення стосовно регулювання норми виливу. Розроблено еквівалентну електричну модель гвинтового лінійного п’єзоелектричного двигуна на основі методу електромеханічних аналогій, яка дозволить швидше розробити схему керування (драйвера). За допомогою розробленої еквівалентної електричної моделі гвинтового лінійного п’єзоелектричного двигуна отримано амплітудно-частотні характеристики біморфних п’єзоелементів двигуна при збудженні одного біморфного п’єзоелемента. Отримані дані показали, що зменшився вплив коливання одного біморфного п’єзоелемента на інші за рахунок зменшення ребер жорсткості. Результати досліджень можуть бути використані при проєктуванні дозаторів для виливу рідких добрив з п’єзокерамічним двигуном.
ІМІТАЦІЙНА МОДЕЛЬ СИСТЕМИ ПЕРЕДАВАННЯ ІНФОРМАЦІЇ З НЕРОЗДІЛЬНИМ ФАКТОРІАЛЬНИМ КОДУВАННЯМ ДАНИХ У СЕРЕДОВИЩІ SIMULINK
Authors: Фауре Еміль , Скуцький Артем , Лавданський Артем
Published: March 2023

Роботу присвячено розробці та дослідженню імітаційної моделі системи передавання інформації з нероздільним факторіальним кодуванням даних у середовищі Simulink. Модель у передавачі реалізує формування перестановки, кодування її символів двійковим рівномірним кодом і передавання отриманої послідовності двійковим симетричним каналом зв’язку з незалежними бітовими помилками. Приймач реалізує зворотне перетворення двійкового повідомлення в символьне. У процесі симуляції фіксується кількість правильно прийнятих і пошкоджених помилкою інформаційних повідомлень. Крім того, виконується підрахунок випадків не виявленої приймачем помилки в отриманому повідомленні. Розроблено структуру імітаційної моделі, описано етапи створення та налаштування моделі в середовищі Simulink. Отримана імітаційна модель дозволяє проводити експерименти з дослідження завадостійкості факторіального кодування даних у каналах зв’язку різної якості.
PECULIARITIES OF SOOT DEPOSITION, TEARING OF CLOTHING AND HUMAN BODY SIMULATOR DURING SHOOTINGS FROM «FORT 12R» AND «AE 790G1» PISTOLS
Authors: Kuslii Yuri Yuriі , Shevchuk Yurii , Fomin Oleksandr , Adamchuk Oksana , Konopelniuk Oleksandr
Published: March 2023

The study of macroscopic features of the clothing damage or the damage to the human body, the presence of additional factors of a shot on it – is one of the basic methods of analysis used in medical forensics. The appearance of new types of firearms requires the appropriate conduct of experimental research in order to update the theoretical database of experts.

The purpose of the work to investigate the features of soot deposition, tearing of clothing and a human body simulator when using «FORT 12R» and «AE 790G1» pistols.

Material and methods. For the study, 120 gelatin blocks were used, which later remained bare or were covered with one of the fabrics: cotton, denim or leatherette. After that, shots were fired from close range, 25 and 50 cm using «FORT 12R» and «AE 790G1» pistols, with subsequent analysis of macroscopic soot deposition around the entrance firing hole and the number of ruptures in clothing or a human body simulator, if the shot was fired at a bare block.

Results. When analyzing soot deposition, it was reliably established (p<0.0070) or a tendency (p=0.0763, only for leatherette) towards its macroscopic detection when shots were fired at close range in all studied groups of bare blocks and blocks covered with clothing when shots were fired from a distance of 25 cm and the absence of the soot when fired from a distance of 50 cm when fired from both pistols. When comparing the data on the number of ruptures between the «Fort 12R» and «AE 790G1» pistols, reliably (p<0.01-0.05) higher values were found when firing with the «AE 790G1» from a close distance into blocks covered with cotton and denim fabric, when shot from 25 cm into the blocks covered with cotton fabric and a slight tendency (p=0.095) to higher values when shot with the «AE 790G1» from a close distance into the blocks covered with leatherette.

Conclusions. When using the «FORT 12R» and «AE 790G1» pistols, practically no differences in soot deposition was found, however, when analyzing the number of ruptures in clothing and the human body simulator, higher values were found when using the «AE 790G1» pistol.
CHARACTERISTICS OF INJURIES TO DRIVERS AND PASSENGERS IN THE CABIN OF B-CLASS CARS IN AN ANGLE COLLISION
Authors: Zozulia Vitalii
Published: March 2023

The article presents the features of damage to the driver and passenger in the cabin of a B-class car during an angle collision.

The cases of road accidents from 2008 to 2021 in the Zhytomyr, Rivne, and Volyn regions of Ukraine were analyzed. Cases of angle (right and left) collisions with fatal consequences for the driver and the passenger in the front seat of B-class cars were considered in automobile trauma. General scientific and special methods were used: system-structural analysis, observation, comparison, description. In addition, a forensic examination of the injuries was carried out. Statistical analysis included primary processing of data by methods of descriptive statistics and testing of the null hypothesis by the method of multifactorial analysis.

The results. A frequency analysis of received injuries was carried out. In the case of a left side collision in the passenger compartment of a B-class car, the drivers suffered injuries to the front of the body, often injuries to the soft tissues of the left leg. It is noteworthy that the soft tissues of the right hand were not injured in the left side collision. Passengers of B-class cars had frontal torso injuries in the case of a left angle collision, as did the drivers. Also common patterns were the absence of damage to the body from behind, rupture of the symphysis, and pelvic fractures on both sides.

Conclusion. In the case of fatal injury in the cabin of B-class cars in the case of a right-side collision, the drivers had numerous injuries to the back and front of the body. The injuries in the car interior differed in the presence of soft tissue damage to all four limbs, but bone fractures of both the upper and lower limbs were localized exclusively on the right. As with the left and right lateral impact, there was no fracture of the pelvic bones on both the left and the right side with preservation of the integrity of the pubic symphysis.

For drivers with fatal injuries in the cabin of B-class cars in the case of a right-side collision, multiple injuries of the thoracic and abdominal organs and the retroperitoneal space were observed: injuries to the right and left kidneys, lacerations of the liver, lacerations of the right and left lungs.