bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation of temperature
fields at gas-laser cutting of high-speed steel
Authors: Barchukov D.A. , Zorenko D.A. , Afanasieva L.E.
Published: August 2023

The results of CAE-modeling of temperature fi elds during gas-laser cutting with nitrogen purge are presented. An
experimental verifi cation of the simulation results on high-speed steel samples is carried out. It is shown that the research
carried out can be useful for optimizing the modes of gas-laser cutting of high-speed steel.
Improving accuracy of roughness parameters
controlreinforced surfaces of machine building parts
Authors: Kravchenko E.G. , Altukhova V.V.
Published: August 2023

The concepts of the accuracy of evaluating the parameters of roughness, an integral part of quality control of products,
are analyzed. Measurements of roughness parameters do not allow obtaining their true values. For this, along with
the obtained measurement result, it is necessary to indicate the measurement error. Uncertainty is investigated, which,
in contrast to the error, has a progressive nature and is used as an assessment of the reliability of measurement results.
By introducing measurement uncertainty into the calibration of a device for measuring roughness, it is possible to increase
the measurement accuracy, and as a result, improve the performance of products. The main provisions of the proposed
study can be taken as the basis for the development of metrological recommendations for factory laboratories.
Design of conveyor nonmixers
Authors: Vasin S.A. , Evseev A.V.
Published: August 2023

The questions of structural synthesis and calculation of the main design and technological characteristics of one of the
variants of the layout of conveyor-type nonmixers intended for the preparation of heterogeneous mixtures, including those
made of tubular long-length components, are considered.
VYGOTSKY’S PERSPECTIVE ON CONCEPT DEVELOPMENT IN THE CHILD AND THE ROLE OF INSTRUCTION IN IT
Authors: Sajani K Narayanan
Published: August 2023

This theoretical paper maps down the process of concept development from Vygotsky’s theory of concept formation, the steps involved in the concept formation and the role of instruction in it. Vygotsky distinguished between lower order thinking and higher order thinking and he classified concepts into everyday concepts and scientific concepts. Scientific concepts are higher order cognitive processes as it is learnt by a child in a mediated process, in contrast to everyday concepts which are learnt through everyday experiences. Moreover, he gave the concept of the zone of proximal development and its role in the development of scientific concepts. This paper provides a detailed description of the process of concept development and the role of instruction in it.
KEYWORDS: Concepts, everyday concepts, scientific concepts, zone of proximal development
MORPHOLOGICAL CHARACTERISTICS OF THE ENDOCRINE FUNCTION OF THE HEART IN COMORBID PATHOLOGY
Authors: Vasyliuk Vasyl M. , Zhurakivska Oksana Ya. , Kondrat Andriy-Ivan V. , Khabchuk Vadym S.
Published: August 2023

Aim: To study the ultrastructural remodeling of atrial myoendocrine cells (AMC) of the atrial myocardium in streptozotocin-induced diabetes (SID) under chronic immobilization stress (CIS).
Materials and methods: 40 sexually mature white male rats (body weight 150-180 g) were included in the study. Four groups were formed: group 1 – animals with comorbid pathology (SID and CIS), group 2 – animals with SID, group 3 – animals with CIS, group 4 – intact animals.
Results: On the 14th day of the development of SID and CIS, an increase in the functional activity of AMC is noted, which is confirmed by hyperplasia and hypertrophy of the protein-synthesizing apparatus, an increase in the volume density of secretory granules (SG), especially diffusing ones, and indicates enhanced release of atrial natriuretic peptide (ANP) from cells during the experiment. On the 56th day of the experiment, in groups 1 and 2 of , destructive changes in AMC were noted, such as vacuolar and balloon dystrophy, colliquative and partial necrosis. At the same time, the functional activity of AMC of different regions of the myocardium significantly. In animals with CIS, the volume density of young and diffusing SG in AMC is decreased.
Conclusions: Therefore, in the early stages of the development of SID and CIS, an increase in the morpho-functional activity of AMC is noted. The long course of SID and its combination with CIS lead to destructive changes in AMC and to decrease in their secretory activity.
CADETS’ MOTIVATION FOR MOTOR ACTIVITY AS AN IMPORTANT FACTOR IN IMPROVING THEIR HEALTH
Authors: Okhrimenko Ivan М. , Tomenko Oleksandr A. , Leonenko Andriy V. , Cherednichenko Serhiy V. , Krasilov Andriy D. , Liakhova Nataliia , Baldetskiy Andriy A.
Published: August 2023

Aim: To investigate cadets’ motivational priorities for physical exercises and sports in the process of their training and the dynamics of their health indicators
Materials and methods: The research was conducted at the National Academy of Internal Affairs in 2018-2022. The research of motivational priorities involved 372 male cadets from the 1st to the 4th instructional years aged 17 to 22. Two groups were formed to investigate the state of cadets’ health: group A (n = 39) included motivated cadets who were additionally engaged in sports, group B (n = 66) was represented by insufficiently motivated cadets who undertook training according to the traditional physical education program and did not additionally engage in physical exercises and sports.
Results: It was found that the motivational priorities of cadets for physical exercises and sports vary depending on the instructional year. Group A cadets showed a significantly better level of health than those from group B, by 2.98 points (p ≤ 0.001) during the 4th instructional year.
Conclusions: A high level of cadets’ health formed in the process of physical exercises and sports during training will contribute to the mastering of the educational program and, in the future, will ensure the effectiveness of their service activities. Therefore, the formation of cadets’ conscious motivation for motor activities during training in order to improve their health is an important task of higher educational institutions
CANNABIDIOL, HOPE OR DISAPPOINTMENT?
Authors: Krakowiak-Liwoch Ewa , Gębka Natalia , Skiera Piotr
Published: August 2023

Cannabidiol, due to its multidirectional action, raises hope for effective therapy and improvement of the quality of life of patients in many fields of medicine. The aim of the study is to analyze selected scientific publications in terms of the possibility of using cannabinoids in the treatment of common diseases. Currently, intensive research is underway on the use and therapeutic indications of cannabinoids. The research carried out for this study is based on experiments carried out on animals, therefore further, in-depth research is needed that will definitely answer the question in the title of the presented work.
Effectiveness of the barcode certification system in preventing incorrect use of patient immobilization device in radiotherapy
Authors: Saotome Satoko , Matsubayashi Fumiyasu , Yoshioka Minoru , Hashimoto Takeo , Ito Yasushi , Oguchi Masahiko , Yoshioka Yasuo
Published: August 2023

The present study showed that using a barcode system could reduce the improper use of immobilization devices in patient positioning, by reviewing the incident/accident (IA) reports before and after the introduction of the barcode system. A barcode system is an effective tool to eliminate human error, which is essential for patient safety. In our institution, approximately 1700 patients were treated using external irradiation. We introduced a barcode system for patient immobilization devices used in external irradiation of radiation therapy. Radiation therapy cannot be performed until each immobilization device is authenticated by a barcode. The IA reports from 2010 to 2019, before and after the barcode system was introduced, were compared. During this period of time, 271 IA reports were submitted from our department, of which 16 reports concerned with patient setup. Analysis was performed using R, comparing the IA report before and after the barcode system was introduced. The number of the IA reports concerning patient positioning and immobilization decreased from 12 to 4 after the barcode system was introduced. We have also investigated the time efficiency of barcode certification system. The average treatment time per patient was 7 min both before and after the barcode certification was introduced, showing no significant change in time efficiency. In conclusion, an authentication system of patient’s individual therapeutic devices using barcode is a necessary tool to avoid the improper use of immobilization devices, misplacement of bolus, and improper couch shape.
Nuclear magnetic resonance-biochemical correlation toward deep learning of theranosis and precision medicine
Authors: Sharma Rakesh , Trivedi Arvind
Published: August 2023

Efforts have been made to employ the nuclear magnetic resonance (NMR)-biochemical correlation concept or a combination of MR imaging (MRI) and MR spectroscopy (MRS) as an established diagnostic tool for medical practice in clinical settings. Recent reviews and meta-analyses indicate the great possibility of using integrated multimodal multiparametric MRI and MRS for deep learning (DL) of soft-tissue pathophysiology, enabling improved decision-making and disease progression monitoring in precision medicine. Recent guidelines and clinical trials suggest the need for DL of the biophysical and biochemical nature of the brain, breast, prostate, liver, and heart tissue from digital spectromics analysis, along with other molecular imaging modalities. The current opinions, based on recent recommendations, available literature on evidence-based MR spectromics, clinical trials, and meta-analyses on high-resolution MRI and MRS suggest that utilizing MRI and MRS signals as theranostic biomarkers for various soft tissues can demonstrate NMR-biochemical correlation and employ MRI with MRS as adjunct real-time tools, generating robust, and fast tissue digital images with metabolic screening. The integration of DL features can aid in evaluating patient disease diagnosis and therapy within a clinical setting, considering the available medical practices and their limitations.
ОСВІТНІ ВТРАТИ В ДОШКІЛЬНІЙ ОСВІТІ ЯК ПЕРЕДУМОВА ПОДАЛЬШИХ ОСВІТНІХ ВТРАТ
Authors: Сисоєва Світлана Олександрівна , Рейпольська Ольга Дмитрівна
Published: August 2023

Розглядаючи освітні втрати дітей та молоді в умовах воєнного стану, зазвичай не звертають достатньої уваги на втрати в дошкільній освіті, які є підґрунтям усіх подальших освітніх втрат і розвитку людського капіталу суспільства загалом. Серед основних чинників, які зумовили освітні втрати в системі дошкільної освіти України виокремлено: порушення принципу доступності дошкільної освіти; послаблення, а іноді й відсутність, психологічної, медичної, методичної та інформаційної підтримки всіх учасників освітнього процесу; відтік кадрів із закладів дошкільної освіти; відсутність своєчасної підтримки розвитку дитини у сенситивні періоди її життя.
Comparative Study Between Pedicled Latissimusdorsi Flap Reconstruction And Traditional Conservative Breast Surgery in Upper Outer Quadrant Breast Cancer
Authors: Ahmed S. Ahmed  , Hesham S. Mostafa  , Abdel N. M. S. El Naggar  , Abdel H. M. A. Halim Ali  , Mostafa F. Ibrahim
Published: August 2023

Background:Oncoplastic breast surgery (OPS)has developed as an extension of breast conserving surgery (BCS) in an effort to improve esthetic and functional outcome following surgery for breast cancer (BC). This study evaluatedthe benefits of reconstruction using the latissimusdorsi(LD) flap, as compared with local tissue displacement.Methods: This was a comparative non-randomized control study on patients after excision of the malignant mass from the upper outer quadrant BC. The two groups were classified into Group A: reconstruction by local tissues displacement, and Group B: reconstruction by pedicledLD flap.The two techniques were compared regarding history, examination finding, intraoperative and post-operative complications.Results:there was no significant difference between group A and B regarding their age, BMI, distance between tumor, NACandpostoperative complications. Tumor size was larger in group B,there was a significant longer operative time,increased blood loss and longer time to recoveryin group B than group A.Conclusion: OPS with breast reconstruction using the pedicledLD flap accompanied with better intra and postoperative outcomes.
Implementation of Deep Learning based Automated Diagnosis of Glaucoma Using Digital Retinal Fundus Images
Authors: Santhosh S  , D. Veerabhadra Babu  , Dr. Anoop B K
Published: August 2023

Glaucoma is a prevalent chronic condition that can cause irreversible vision loss. The number of individuals sufferingfrom permanent vision loss as a result of glaucoma is predicted to rise at an alarming rate in the near future. Thereis a lot of study being done on computer-aided diagnosis for glaucoma. The optic cup (OC) and optic disc (OD) aretypically segmented in retinal fundus images to distinguish between glaucomatous and non-glaucomatous instances.However, the OC boundaries are quite non-distinctive; as a result, accurate OC segmentation is extremely difficult,and OD segmentation performance also needs to be improved. To address this issue, we suggest two networks foraccurate glaucoma screening: CNN and RNN-LSTM. We created a CNN-RNN hybrid that extracts not only the spatialinformation in a fundus image but also the temporal features encoded in fundus sequential images. A CNN and acombined CNN and Long Short-Term Memory RNN were trained using 1810 fundus pictures and 295 fundus videos.In differentiating glaucoma from healthy eyes, the combined CNN/RNN model achieved an average F-measure of95.2%. In comparison, the fundamental CNN model only achieved an average F-measure of 78.2%. Both proposednetworks include a separable convolutional link to improve computational efficiency and lower network costs. Theproposed architecture can provide great accuracy even with only a few trainable parameters.
Course Recommendation Application for Admission to University
Authors: A. Haris Norhaidah , Hasim Nurdatillah , Ramlee Adam , Shaari Arif Azhan , Abdul Rahman Fauziah
Published: August 2023

Studying in Higher Education institutions has been the dream of many students who completed their post-secondary schools. This study aims to assist the students in their decision for admission to the program courses offered at Universiti Kuala Lumpur (UniKL). A wide variety of technical program courses are offered on UniKL’s twelve campuses. Every campus institute has specific specialisation program courses. Students who wished to study at UniKL usually would have to search for courses offered on various UniKL campuses. Usually, students could not decide which courses suited their personality and future career path. This study proposes a prototype application that assists and recommends the students with their course selection according to their personality and final examination results. The prototype would let the students take a personality test that allows them to understand their personality and proposes a list of UniKL courses that match their personality and examination results. Therefore, the students would have a clear view of the prospective opportunities the program courses have to offer and the direction of their future careers. The career prediction recommendation would let the students target suitable courses that match their examination results and personality.
Simulación y comparación de controladores PID, Liapunov y redes neuronales artificiales: Abordando el rechazo de perturbaciones en sistemas no lineales a través de modelado computacional
Authors: Saldaña Carlos Alberto , Tumbaco Reyes Alfredo Ramón , Kuonquí Gaínza Franklin Illich , Pasmay Bohórquez Patricia Isabel , Malave Vivar Cecibell Alexandra
Published: August 2023

El control de sistemas complejos se basa en resolver problemas en sistemas no lineales, los cuales generalmente son inestables. Un ejemplo de dicho sistema es el robot de auto equilibrio de dos ruedas, un problema típico en el área de modelado y control de sistemas, y un desafío intrigante para entender y controlar. Este artículo tiene como objetivo observar las diferentes características de tres métodos de control existentes en un sentido general, comenzando con el control clásico utilizando el bien conocido PID, seguido por las matemáticas de las funciones candidatas de Liapunov, y finalmente revisando la contribución de los algoritmos de redes neuronales artificiales (ANN). El control PID, el control de Liapunov y el control de redes neuronales artificiales son tres técnicas de control diferentes que pueden ser utilizadas para rechazar perturbaciones en sistemas no lineales. Cada una de estas técnicas tiene sus propias ventajas y desventajas en términos de su capacidad para rechazar perturbaciones en sistemas no lineales. El control PID es una técnica de control bien establecida que puede utilizarse para controlar una amplia variedad de sistemas, incluidos los sistemas no lineales, pero puede no ser tan efectivo para rechazar perturbaciones en sistemas no lineales, ya que la respuesta del controlador puede no ser lo suficientemente rápida o precisa para compensar las perturbaciones. El control de Liapunov es una técnica de control basada en la teoría matemática de la estabilidad y utiliza una función de Liapunov para garantizar la estabilidad del sistema. El control de redes neuronales artificiales se basa en el aprendizaje automático y utiliza una red neuronal para modelar el comportamiento del sistema y generar una señal de control adecuada. Este artículo realiza una comparación entre estos controladores, dando un paso desde el control clásico hacia algunas de las técnicas de control actuales.
Формули типу Кларка-Окона на просторах регулярних основних і узагальнених функцій в аналізі білого шуму Леві
Authors: Качановський Микола
Published: August 2023

У класичному гауссівському аналізі формулу Кларка-Окона можна записати у вигляді
$$
F=\mathbf{E}{F}+\int\mathbf{E}\big(\partial_t F|_{\mathcal F_t}\big)dW_t,
$$
де функція (випадкова величина) $F$ є квадратично інтегровною за гауссівською мірою та диференційовною за Хідою; $\mathbf{E}$ позначає математичне сподівання; $\mathbf{E}\big(\circ|_{\mathcal F_t}\big)$ -- умовне математичне сподівання відносно повної $\sigma$-алгебри $\mathcal F_t$, породженої вінерівським процесом $W$ до моменту часу $t$; $\partial_{\cdot} F$ -- похідна Хіди $F$; $\int\circ (t)dW_t$ позначає стохастичний інтеграл Іто за вінерівським процесом.
Ця формула має багато застосувань, зокрема, у стохастичному аналізі та у фінансовій математиці.

В цій статті ми узагальнюємо формулу Кларка-Окона на простори регулярних основних і узагальнених функцій в аналізі білого шуму Леві.
Точніше, ми отримуємо різні формули типу Кларка-Окона на вищезгаданих просторах, вивчаємо властивості підінтегральних функцій у цих формулах, встановлюємо умови, за яких формула типу Кларка-Окона приймає класичний вигляд, тощо.
Зокрема, ми показуємо, що обмежувальна умова диференційовності за Хідою для випадкової величини не є суттєвою.
S-type Stars: Line List for the A2Π–X2Σ+ Band System of LaO
Authors: Bernath P. F. , Dodangodage R. , Liévin J.
Published: August 2023

LaO bands are found in the spectra of cool S-type stars. The bands of the A2Π–X2Σ+ transition with

v
′
≤
3

and v″ ≤ 4 are rotationally analyzed, providing spectroscopic constants for the A2Π state. Line strengths are calculated using an ab initio transition dipole moment function, and radiative lifetimes for the A2Π state have also been computed. A line list for the A2Π–X2Σ+ transition of LaO is provided and can be used to determine LaO stellar abundances.
SES Dashboard: A linked data platform to manage data on Southern Elephant Seals
Authors: Zárate Marcos , Eder Elena , Delrieux Claudio , Lewis Mirtha , Nuñez Gustavo , Ceballos Dario
Published: August 2023

In this paper we present SES Dashboard, a linked data platform developed to manage information of Southern Elephant Seals (Mirounga leonina Linnaeus, 1758) from Península Valdés colony (Patagonia, Argentina), collected over more than two decades of research. Southern elephant seals spend most of their time foraging at sea, alternating with two short and highly synchronized haul-outs ashore for breeding and molting. On land, the distribution of the colony extends along ≈350 km, while at sea individuals travel thousands of kilometers The information recorded is mainly based on georeferenced data from censuses, bioregisters (trajectories at sea and hydrographic profiles), and bibliography based on the above data.

SES Dashboard was released in 2021 and published following the principles of Linked Open Data to improve its visibility, to make it shareable, extensible and easily reusable through a SPARQL endpoint.
A morphology-based revision and phylogenetic analysis of the Pterostichus macrogenys species group (Coleoptera, Carabidae) and implications for differentiation of the species group
Authors: Sasakawa Kôji , Mitsuduka Yoshiji
Published: August 2023

The Pterostichus macrogenys species group is an endemic subterranean Japanese carabid clade that provides intriguing material for studying morphological differentiation, speciation and interspecific relationships. However, its diversity remains not fully explored. We investigated specimens from northern Tohoku District, an area where knowledge of this species group is notably limited. Our research led to the description of three new species: P. namahagesp. nov., P. kamurosanussp. nov. and P. atsumidakensissp. nov. We also updated distribution records for three known species: P. asahinus Habu & Baba, 1960; P. kitakamisanus Sasakawa, 2005; and P. chokaisanus Sasakawa, 2009. This report includes both the expanded distribution ranges of the known species and the discovery of a new sympatric species pair (P. chokaisanus and P. asahinus). We conducted a morphological phylogenetic analysis of all but one species, for which no male specimens were available, accounting for a total of 42 species within the group. The resulting phylogenetic tree implies that the initial differentiation of this species group originated on the Sea of Japan side, in the northern part of their current distribution, followed by dispersion to other areas and subsequent differentiation. Additionally, our findings indicate that sympatric species of varying body sizes are distantly related phylogenetically. These insights into the differentiation process align with regional distribution patterns of species-level diversity and sympatric sites.
Expanded description of Hemiphyllodactylus hongkongensis (Squamata, Gekkonidae)
Authors: Li Xiang-Yi , Lin Shi-Shi , Zeng Zhao-Chi , Sun Yan-Jun , Wang Jian
Published: August 2023

The expanded description of Hemiphyllodactylus hongkongensis Sung, Lee, NG, Zhang & Yang, 2018 is provided based on four newly collected specimens from eastern Guangdong Province, China, which is beyond its previously known range. The new collection also fills the distribution gap of the genus Hemiphyllodactylus in the region. Due to the absence of sufficient data, we recommend Hemiphyllodactylus hongkongensis be listed as Data Deficient (DD) in the IUCN conservation status categorization.
Diagnosis and management of acute colonic diverticulitis: results of a survey among Korean gastroenterologists
Authors: Lee Jae Gon , Park Yong Eun , Chang Ji Young , Song Hyun Joo , Kim Duk Hwan , Yang Young Joo , Kim Byung Chang , Lee Shin Hee , You Myung-Won , Kim Seong-Eun
Published: August 2023

Background/Aims: Some management strategies for acute colonic diverticulitis remain controversial in Korean real-world practice because their clinical features differ from those in the West. This study aimed to investigate the opinions of Korean physicians regarding the diagnosis and treatment of acute diverticulitis.Methods: A web-based survey was conducted among gastroenterologists specializing on treating lower gastrointestinal disorders. The questionnaires concerned overall management strategies for colonic diverticulitis, including diagnosis, treatment, and follow-up.Results: In total, 209 gastroenterologists responded to the survey. Less than one-fourth of the respondents (23.6%) answered that left-sided colonic diverticulitis is more likely to be complicated than right-sided colonic diverticulitis. Most respondents agreed that immunocompromised patients with diverticulitis have worse clinical outcomes than immunocompetent patients (71.3%). Computed tomography was the most preferred tool for diagnosing diverticulitis (93.9%). Approximately 89% of the respondents answered that they believed antibiotic treatment is necessary to treat acute uncomplicated diverticulitis. Most respondents (92.6%) agreed that emergency surgery is not required for diverticulitis with an abscess or microperforation without panperitonitis. Further, 94.7% of the respondents agreed that colon cancer screening is necessary in patients aged ≥ 50 years with diverticulitis after they have recovered from acute illness. Many respondents (71.4%) agreed that surgery for recurrent diverticulitis should be individualized.Conclusions: Opinions regarding management strategies for colonic diverticulitis among Korean gastroenterologists were well agreed upon in some areas but did not agree well in other areas. Evidence-based guidelines that meet the practical needs of the Korean population should be developed.
Eco-friendly fungicide based on chitosan and pecan nut oil: development and evaluation in anthracnose control
Authors: Giacomini Gabriela Xavier , Nachtigal Glaucia de Figueiredo , Martins Carlos Roberto , Hirdes Adriane Roedel , Valgas Ricardo Alexandre , Santos Aline Joana Rolina Wohlmuth Alves dos
Published: August 2023

Industrial processing of pecan nuts results in edible oil – with fractions of fatty acids, polyphenols and phytosterols - that may be used for managing phytopathogens. Besides, chitosan may interfere with pathogen development directly and/or activate mechanisms of defense in plant tissues. This study aimed at developing a novel, natural and eco-friendly fungicide based on pecan nut oil immobilized in chitosan and at evaluating its activity against Colletotrichum gloeosporioides, an agent of anthracnose in guava trees and other fruit trees. Changes in the immobilized material exhibited at bands were identified by infrared spectroscopy. Additionally, micrographs by scanning electron microscopy (SEM) showed efficient changes in the immobilized material, by comparison with the polymer chitosan. Decreases in Colletotrichum gloeosporioides sporulation in vitro were 37% in the case of pecan nut oil immobilized in chitosan (IO) and 39% in the case of non-immobilized pecan nut oil (NIO). These results are positive because this fungus produces a large number of spores which may disseminate and survive on surfaces of plant tissues infected by anthracnose. Immobilization of pecan oil in chitosan showed benefits in the synthesis of a novel, stable and eco-friendly material which may be applied to guava trees to control anthracnose.
Production components of agroindustrial interest of sugarcane varieties under subsurface drip irrigation in semiarid conditions
Authors: Simões Welson Lima , Oliveira Cíntia Patrícia Martins de , Oliveira Anderson Ramos de , Faria Glaucia Amorim , Guimarães Miguel Julio Machado , Tardin Flavio Dessaune , Silva Jucicléia Soares da
Published: August 2023

The identification of promising commercial varieties for irrigated crops in semiarid conditions based on characters of interest to sugarcane agro-industries is important, considering the search for high sugarcane yields to obtain sustainable crops. Thus, the objective of this work was to evaluate production components of agroindustrial interest of different sugarcane varieties grown under subsurface drip irrigation in the Semiarid region of Brazil, during two crop cycles. A randomized block experimental design was used, in an 8×2 factorial arrangement (varieties and cycles) with three replications. The sugarcane juice quality, sugar yield, and culm yield were evaluated in each cycle. Gross sugar percentage, sugarcane culm yield, juice apparent sucrose content, and juice purity were affected by the crop cycles. Soluble solids content presented strong significant correlation with most variables of agroindustrial interest. The path coefficient analysis showed that juice apparent sucrose content was the explanatory character with higher direct effect on soluble solids and that this variable presented high indirect effects on most explanatory variables. The sugarcane varieties RB72454 and Q124 are recommended for production managements with drip irrigation under semiarid conditions. Soluble solids content can be used as an alternative for direct selection of varieties with higher sugar yields in different cycles.
Predation rate of dragonfly (Odonata: Libellulidae) on tilapia (Oreochromis niloticus Linnaeus 1758) and the availability of alternative preys (Insecta: Diptera: Chironomidae) to increase fish survival
Authors: Fortunato Murilo Henrique Tank , Mendes Humberto Fonseca , Hayashi Carmino , Faria Lincoln Rodrigues de , Melo Caroline Lopes de , Ananias Imaculada de Morais Carvalho
Published: August 2023

The objective of this work was to evaluate the predation rates of two genera of Odonata Miathyria Kirby, 1889 and Erythemis Hagen, 1861 in post-larviculture of tilapia with and without availability of Chironomidae. For that, 3 experiments were carried out, the first to analyze which size scale of these two genera would be more efficient in the predation of tilapia and the other 2 experiments with the selected size scales, to analyze the predation rates on tilapia with different Odonata densities, with and without availability of the aquatic insect Chironomidae. For statistical analysis of the data, an analysis of variance (ANOVA) was applied with the Duncan test searching for the means in all experiments. In experiments 2 and 3 a linear regression model was also applied. In experiment 1, there were significant differences between treatments, and in the phase with Miathyria the predation of tilapia post-larvae was higher among odonates that corresponded to the size scale from 7.1 to 9.9 mm and therefore the scale was also selected for the next experiments. For Erythemis, the consumption of tilapia was higher in the size scale between 12.1 to 14,2 mm. In the following experiments, there were significant differences between treatments. With the increase in Odonata densities the predation of the fish was greater. With the availability of Chironomidae, the consumption of tilapia post-larvae decreased. The consumption of Chironomidae was higher than the consumption of fish in experiment 3. Miathyria proved to be more efficient than Erythemis in predation and the use of Chironomidae can be a sustainable alternative for post-larvae predation control on fish farms.
Usefulness of HbA1C in differentiating Gestational Diabetes Mellitus and preexisting Diabetes Mellitus in the early stages of pregnancy
Authors: Kandauda I. C. , Tennakoon S. , Gunathilake T. , Hansamali B. G. T.
Published: August 2023

Introduction: Diabetes mellitus in pregnancy can cause several complications for the mother and the neonate if left untreated. This study identifies the proportion of undiagnosed pre-existing diabetic pregnant women and the necessity of doing an HbA1C test in the first trimester for its diagnosis.Methodology: Pregnant women in the first trimester without a history of hypertensive disorders, Diabetes Mellitus in their previous pregnancies were recruited for the studies. Then blood samples were withdrawn from them to perform OGTT and the HbA1C test on booking visit (8-12 weeks of gestation). The results were used to diagnose and find the proportions of pregnant women with pre-existing diabetes mellitus and gestational diabetes mellitus.Results: The HbA1C test was done for 428 pregnant women and among them, 25 (5.8%) had levels above ≥ 48 mmol/mol (6.5%) and were diagnosed with pre-existing diabetes. Of the 428 pregnant women, only 267 attended the OGTT. Among the 267 pregnant women, 15 had HbA1C levels equal to or more than 6.5% and they were identified to have pre-existing diabetes. Pregnant women diagnosed with gestational diabetes were 34 and the HbA1C of these women was <6.5%. However, the 15 pregnant women who were diagnosed with preexisting diabetes were not identified with gestational diabetes from the OGTT.Conclusion: HbA1C can be used as a useful tool for screening pre-existing diabetes during pregnancy. Due to the high prevalence of pregnant women with pre-existing diabetes (5.8%) found in this study, it can be recommended to perform a HbA1C test at the booking visit to identify high-risk, pregnant women.
Ảnh hưởng của các yếu tố giáo dục khởi nghiệp và niềm tin vào năng lực bản thân đến ý định khởi nghiệp của sinh viên ngành du lịch
Authors: Hà Trịnh Thị
Published: August 2023

Mục đích của nghiên cứu này nhằm kiểm tra sự tác động của yếu tố giáo dục khởi nghiệp và niềm tin vào năng lực bản thân đến ý định khởi nghiệp thông qua tư duy khởi nghiệp và thái độ khởi nghiệp của sinh viên ngành du lịch tại Thành phố Đà Lạt. Nghiên cứu tập trung vào năm (05) nhân tố với tám (08) giả thuyết, ứng dụng mô hình cấu trúc tuyến tính (PLS-SEM) để kiểm tra mối quan hệ giữa các nhân tố. Phương pháp thu thập dữ liệu sơ cấp được thực hiện thông qua việc điều tra khảo sát sinh viên ngành du lịch tại hai trường đại học trên địa bàn Thành phố Đà Lạt bằng hình thức trực tuyến, kết quả thu về 216 phiếu hợp lệ. Sau khi xử lý và phân tích dữ liệu bằng phần mềm Smart PLS 3.0, kết quả nghiên cứu cho thấy sáu giả thuyết được chấp nhận. Điều này khẳng định rằng ý định khởi nghiệp của sinh viên ngành du lịch chịu sự tác động của niềm tin vào năng lực bản thân, thái độ khởi nghiệp và tư duy khởi nghiệp. Yếu tố thái độ khởi nghiệp cũng là trung gian trong mối quan hệ giữa niềm tin vào năng lực bản thân và ý định khởi nghiệp.
AS CONSEQUÊNCIAS JURÍDICAS DA CONTAMINAÇÃO GENÉTICA DE CULTIVARES EM FACE DA PROTEÇÃO À INTEGRIDADE DO PATRIMÔNIO GENÉTICO
Authors: Stefanello Matheus
Published: August 2023

O presente trabalho científico objetiva analisar as consequências jurídicas da contaminação genética entre cultivares, fenômeno caracterizado pelo fluxo gênico entre plantas geneticamente modificadas e convencionais, examinando-a em face das disposições constitucionais relativas ao direito ao meio ambiente ecologicamente equilibrado e ao dever de preservação da integridade do patrimônio genético nacional. Uma vez encontrado o gene modificado em sua produção, o agricultor de culturas não-OGM depara-se com prejuízos, estando obrigado a custear o direito de uso de uma tecnologia que não escolheu, além de não poder manter as sementes para a próxima safra. Lado outro, a Constituição Federal estabeleceu como dever do Estado a proteção à integridade do patrimônio genético, associada a aplicação dos princípios constitucionais da precaução e do poluidor-pagador, bem como da legislação de biossegurança. Em vista das disposições constitucionais, por meio do método indutivo de abordagem, afirma-se que as consequências jurídicas enfrentadas pelo produtor vítima da contaminação não são compatíveis com a ordem constitucional. Mostra-se viável pleitear reparação civil pelos danos havidos, seja em face do vizinho que não tomou as devidas precauções, da empresa que desenvolveu tecnologia capaz de dispersar-se sem medida eficaz de contenção, ou, ainda, do próprio Estado que concedeu autorização à OGM sem estudos apropriados ou em contrariedade aos estudos apresentados.
Jogo de luta e perseguição - um contexto de socialização da agressividade?
Authors: Veiga Guida
Published: August 2023

O jogo constitui uma parte significativa da infância, assumindo um papel determinante para o desenvolvimento saudável e adaptativo da criança. Como acontece noutras espécies, brincar com os pais, os irmãos e os amigos cria um ambiente positivo, estimulante e facilitador para a prática de habilidades que são essenciais a curto e a longo prazo. Existem diferentes formas de jogo, que têm sido associadas a diferentes funções desenvolvimentais. O jogo de luta e perseguição é o tipo de jogo mais frequente e mais estudado nas espécies animais, contudo, no que diz respeito ao desenvolvimento da criança, os estudos são mais escassos e nem sempre consensuais relativamente à função adaptativa desta forma de jogo. Este artigo pretende focar o papel do jogo de luta e perseguição na socialização da agressividade ao longo do desenvolvimento da criança, apresentando quer as perspetivas favoráveis a este tipo de jogo como contexto privilegiado para o desenvolvimento da capacidade de regulação emocional, quer as perspetivas que associam esta forma de jogo à agressividade.
Desenvolvimento tecnológico de formas farmacêuticas orais sólidas de libertação prolongada do fármaco alprazolam
Authors: Melo Andreia , Neves Cláudia , Barros Filipa , Pereira Sarah , Ribeiro Maximiano , Coutinho Paula , Araújo André
Published: August 2023

O alprazolam é uma benzodiazepina pertencente ao subgrupo dos ansiolíticos, sedativos e hipnóticos, que constitui o subgrupo dos psicofármacos com maiores níveis de utilização ao longo dos últimos anos. Atua no sistema nervoso central e é utilizado principalmente no tratamento de distúrbios de ansiedade e ataques de pânico, que são patologias que requerem a toma contínua dos mesmos. Trata-se de uma benzodiazepina de curta duração de ação e é geralmente prescrita até quatro doses diárias para o tratamento da ansiedade e mais de quatro para o tratamento de ataques de pânico. Este esquema posológico pode dificultar o próprio tratamento, devido ao incumprimento da terapêutica instituída, e à própria estabilidade do doente. Neste contexto, as formas farmacêuticas de libertação modificada podem ser uma grande valia. Existem dois tipos de formas farmacêuticas orais sólidas de libertação do alprazolam, a de libertação imediata e a de libertação modificada, sendo que as primeiras são desenvolvidas para libertar o fármaco rapidamente, sendo empregues recursos que favorecem os processos de libertação e dissolução do fármaco. Em contrapartida, as formas de libertação modificada são concebidas para se atingir um efeito terapêutico prolongado por libertação continuada do fármaco por um período de tempo prolongado após a administração de uma única dose de fármaco. Esta investigação visa explorar a conceção das formas farmacêuticas orais sólidas (comprimidos) de libertação prolongada contendo alprazolam, tendo por base a análise dos diferentes excipientes que as constituem, comparativamente com as formas farmacêuticas de libertação imediata, que estão disponíveis comercialmente, bem como explorar as tecnologias empregues para a sua obtenção. Constatou-se que a hidroxipropilmetilcelulose (ou hipromelose) é o excipiente comum e exclusivo das formas farmacêuticas de libertação prolongada. Trata‐se de um polímero hidrófilo resistente à desintegração que, depois de hidratar, intumesce, formando uma camada gelificante à superfície do comprimido que vai funcionar como barreira, controlando, desta forma, a penetração da água e a velocidade de libertação do fármaco. Desta forma, o método empregue prendeu-se com a modificação da forma farmacêutica em si e neste âmbito, os sistemas matriciais hidrófilos têm sido vastamente utilizados em sistemas de entrega controlada de fármaco por via oral.
A criatividade, a contemporaneidade e o universo infantil: pensar e construir musicalmente
Authors: Porto Susana , León Francisco
Published: August 2023

Indo ao encontro de hodiernas abordagens metodológicas e de uma visão holística sobre a criação e a construção da arte, apresenta-se, neste artigo, a 3.ª fase de uma investigação-ação onde se pretendeu desenvolver estratégias que facilitem a inclusão da música erudita contemporânea na educação musical da criança, com confiança e de modo exequível, por parte de futuros educadores e professores generalistas (estudantes da Escola Superior de Educação e Ciências Sociais do Instituto Politécnico de Portalegre). Deste modo, procedeu-se à implementação de atividades de reflexão, criação e construção musical - dirigidas a crianças da Educação Pré-Escolar e do 1.º Ciclo do Ensino Básico - de acordo com as conclusões obtidas na 2.ª fase da investigação e tendo por base os métodos educacionais de Schafer (1998) e Paynter (1972). Intentando-se desenvolver o ouvido da criança e a criatividade musical, as propostas de trabalho implementadas nesta fase de estudo - supervisionadas e apoiadas pela investigadora - assentam em projetos cujos objetivos primordiais se fundamentam na experimentação/exploração sonora, no pensar sobre o som e na criação musical por meio de sequências sonoras.
Associação entre a obstipação int estinal, hábitos alimentares e estilo de vida
Authors: Martins Márcia , Fernandes António , Almeida-de-Souza Juliana
Published: August 2023

A obstipação intestinal é definida como dificuldade em defecar e é considerada um fator de risco para o cancro cólon retal. Pode estar associada com o estilo de vida, nomeadamente, com hábitos alimentares, stresse, atividade física e hábitos tabágicos. Por isso, desenvolveu-se um estudo transversal, com o objetivo de estudar a associação entre a obstipação intestinal e o estilo de vida numa amostra não probabilística de 341 estudantes de uma universidade do centro de Portugal. A recolha de dados foi feita a partir de um questionário autoaplicado, que incluiu os critérios de Roma III para o diagnóstico da obstipação intestinal, a escala PSS-10 para avaliar o stresse, o IPAQ para avaliar o nível de atividade física, o QFA para avaliar os hábitos alimentares e, ainda, questões específicas acerca do peso e estatura, hábitos tabágicos e consumo de laxantes. Para estudar a correlação entre a obstipação e o estilo de vida utilizou-se o teste de Spearman. Observou-se que, quanto maior o stresse, maior era o número de sintomas de obstipação intestinal e, quanto menor o IMC, idade, consumos de água, fibra dietética e hortícolas, maior era o número de sintomas de obstipação. Conclui-se, por isso, que o estilo de vida pode ter um papel relevante na prevenção da obstipação intestinal.
Oportunidades de mercado para a implementação de ações eco inovadoras: da análise ao desenvolvimento de um modelo de negócio.
Authors: Sánchez-Planelles Joaquín , Segarra-Oña Marival
Published: August 2023

As empresas tomaram consciência do meio ambiente e tentaram reduzir o seu impacto ambiental há décadas, quando os governos implementaram medidas de proteção ambiental através da legislação ambiental. A atitude das empresas relativamente ao meio ambiente mudou drasticamente. Atualmente, atender apenas às normas ambientais não é suficiente, as empresas têm que procurar ser sustentáveis. O acesso à informação faz com que os clientes se preocupem com o impacto ambiental de produtos e serviços que utilizam. Isto origina a criação de modelos de negócios disruptivos, que têm a sustentabilidade como seu negócio principal (e.g. economia circular). Este trabalho identifica os problemas ambientais de empresas, como solucionam estes problemas, e analisa ainda novas tendências comerciais que buscam soluções para problemas ambientais ainda pendentes. Para obter esta análise, foi feita uma pesquisa sobre as ações de empresas atuais com respeito ao meio ambiente e como empresas e negócios novos podem prevenir a degradação ambiental. Os resultados indicam como esses novos modelos de negócios disruptivos e novas práticas comerciais podem levar a uma redução na degradação ambiental através da integração da sustentabilidade em empresas existentes e a integração com novas empresas que têm como principal objetivo melhorar a qualidade do meio ambiente.
Treinamento de força e destreinamento em mulheres con mastectomia sobreviventes do cancro da mama
Authors: Camberos Nestor , Romero Ena , Horta Mario , Tánori Manuel , Paz José
Published: August 2023

A incidencia do cancro da mama tem aumentado, ao mesmo tempo que se reduz a mortalidade, e as sobreviventes têm muitas vezes sequelas, como diminuição da mobilidade e força ou dor no ombro. O exercício de força tem sido recomendado nos últimos anos a esses pacientes. Pouco se sabe sobre os efeitos diferenciados em resposta ao treino e destreino do lado operado e do lado não operado. Participaram 31 sobreviventes de cancro de mama, com 56,9 ± 9,7 anos, 5,7 ± 4,7 anos após o tratamento cirúrgico e 74% com linfadenectomia. Reali[1]zaram 24 sessões em 12 semanas de treino. Em cada sessão foram feitas 3 séries x 12-10-12 repetições, entre 40-65% de 1RM. A força máxima foi avaliada antes, após 12 semanas de treino e após 12 sema[1]nas de destreino. Foi obtido um ganho na força máxima nas aberturas em máquina bilateral de 23,8 ± 17,7; na abertura esquerda de 56,3 ± 28,8 e na direita de 45,4 ± 17,5; o destreino produziu uma diminuição de 1,6 ± 14,3 e 3,9 ± 17,9, respetivamente. Não houve diferença entre o ganho do braço do lado operado e o lado não operado. O treino produz melhorias significativas na força máxima e estas são mantidas com pouca perda durante o destreino. O ganho é semelhante tanto na extremidade do lado afetado pelo cancro quanto pela do lado não afetado.
Avaliação da intensidade de esforço durante aulas de grupo: uma comparação entre as modalidades de step coreografado e step atlético
Authors: Simão Ana , Vaz Claudia , Jorge Bernardete , Vila-Chã Carolina
Published: August 2023

Este estudo teve como objetivo avaliar e comparar a intensidade de esforço em duas aulas de step [coreografado (SC) e atlético (SA)]. As 8 participantes da amostra (género feminino, 21,3±1,1 anos) foram submetidas a duas sessões de 45 minutos, com o step a 15cm de altura e cadência musical de 132bpm, com um intervalo de 48h entre sessões. A intensidade de esforço foi avaliada através da monitorização da frequência cardíaca (FC). Foi calculada a FC reserva e determinadas as zonas de intensidade (ACSM, 2011). Foi ainda avaliada a perceção subjetiva de esforço (PSE – escala de Borg). A FC média nas aulas de SC e SA foi de 157±18,3bpm e 158,1±7,1bpm, respetivamente, traduzida numa intensidade média de 69,2±13,5 (SC) e 69,7±6,2 (SA) da FC Reserva, sem diferenças significativas entre as duas vertentes de step (p>0,73). Contudo, na aula de SA as participantes passaram 70±8,8% (p>0,05) do tempo em atividade vigorosa enquanto no SC passaram 50±10,3% (p>0,05). Não foram encontradas diferenças significativas relativamente ao tempo despendido noutras zonas de treino, entre modalidades. Na aula de SA (16,67 ± 1), a PSE foi significativamente superior à aula de SC (15,44 ± 0,73). Ambas as modalidades permitem praticar exercício físico de intensidade moderada a vigorosa, concordando com as recomendações do ACSM (2011).