bluuebunny/crossref_metadata_2025 huggingface dataset:
The Spatiotemporal Changes of Oxygen Consumption Rate and Heat Release Intensity During Coal Spontaneous Combustion
Authors: Jin Yongfei , Yan Li , Liu Yin , Li Chuansheng
Published: September 2021

In order to study the dynamic development law of different regions in the spontaneous combustion process of coal, the spontaneous combustion process of loose coal under constant air volume from normal temperature to 140 °C was tested by using large coal spontaneous combustion simulation test bench, so as to analyze the change law of oxygen consumption rate and heat release intensity in time and space. The results showed that the temperature of the loose coal spontaneous combustion process varies with the height of the coal body at different temperature stages. The high temperature point moved from the upper middle position of the coal body to the air inlet side; the oxygen consumption rate and time of different coal body heights showed indexes Increase, and the rate of oxygen consumption coincided with the migration law of the high temperature point of the coal body height. The coal body exhibited slow and rapid growth in stages around 75 °C; the heat release intensity of the loose coal inlet gradually increased. After the temperature exceeds 75 °C, the heat release intensity of different coal heights gradually increased with time, and the intensity of heat release coincides with the migration law of the high temperature point of the coal body height.
Graph Theory and Matrix Approach for Machinability Enhancement of Cryogenic Treated Cobalt Bonded Tungsten Carbide Inserts
Authors: Karnan Balamurugan , Kuppusamy Arunkarthikeyan
Published: September 2021

Cryogenic treatment is a sustainable manufacturing process preferred to improve the properties of the material. In the present study, the effect of cryo treated tungsten carbide cobalt bonded insert (WC-Co) measured in terms of tool life and surface finish on dry turning on high strength AISI4340 steel at different machine parametric conditions. The observations of Untreated (UT) and Deep Cryo Treated (DCT) inserts were compared. Formation and the distribution of eta phase carbides are verified by Scanning Electron Micrograph (SEM). The DCT insert shows a reduction in 27.27% tool wear with an acceptable level of surface finish. Taguchi's coupled Graph Theory and Matrix Approach (TC-GTMA) is used to predict the optimum machining condition and to substantiate the results the validation experiment is conducted and found satisfactory.
Comprehensive Study of Relative Afferent Pupillary Defect in Kanyakumari Medical College, Tamil Nadu
Authors: R Beena , T.R. Anuradha
Published: September 2021

BACKGROUND Relative afferent pupillary defect (RAPD) or Marcus Gunn pupil is a highly sensitive and significant objective clinical finding in eye examination. It can be detected by swinging flashlight test. Its presence indicates unilateral afferent sensory abnormality or an asymmetric bilateral disease. However, it can be determined even in an unconscious patient, requires no complicated gadgets, relies on clinical observation but can be a manifestation of a myriad of disorders affecting the eye or the brain. The goal of our study was to identify the aetiology of relative afferent pupillary defect and ascertain whether the grade of relative afferent pupillary defect correlated with the visual prognosis. METHODS This was a prospective observational hospital-based study. 25 consecutive patients who presented with a clinical diagnosis of relative afferent pupillary defect to the Ophthalmology Department of Kanyakumari Government Medical College in Tamil Nadu from February 2019 to January 2021 were included in the study. The patients were evaluated based on visual acuity, refraction, colour vision, slit lamp, fundus examination, intra ocular pressure (IOP) measurements & fields. Statistical analysis was done by trial version of statistical package for social sciences (SSPS) software. RESULTS Of the 25 cases analysed, 60 % (15) were male, 36 % (9) were females and 4 % (1) children. An analysis of the aetiology revealed that the optic nerve pathology was the predominant aetiology accounting for 60 % (15) of cases, followed by glaucoma 24 % (6) and retinal pathology in 16 % (4). Glaucoma though a bilateral disease has an asymmetrical presentation which led to RAPD. Grade of RAPD correlated well with the visual prognosis. CONCLUSIONS RAPD is a good and valuable clinical tool for any clinician, it is also a useful guide for assessing the management and response to treatment. KEYWORDS Relative Afferent Pupillary Defect, Optic Neuropathy, Retinal Detachment, Glaucomatous Optic Atrophy
Histopathological Study of Placenta in COVID-19 Positive Mothers in a Tertiary Care Hospital, South Kerala
Authors: Govindan Krishna , Girijakumar Jithesh , Radha Sreekumari , Jayasimham Priyasree , Kunjunny Reshma Pallikara
Published: September 2021

BACKGROUND The coronavirus disease 2019 (Covid-19), caused by severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2), is a global public health emergency. Data on the effect of coronavirus disease 2019 in pregnancy is limited to few case series. The purpose of this study was to describe the histopathological findings in the placentas of women with Covid-19 during pregnancy. METHODS Pregnant women with Covid-19 who delivered between August 1, 2020 and May 10, 2021, at Government Medical College, Trivandrum were considered for the study. Handling of specimens were carried out using Indian council of medical research (ICMR) guidelines for Covid-19 specimens. Placentas underwent routine clinical examination and processing. Clinical information was retrieved from the medical records. Histological examination was performed and features classified into maternal vascular malperfusion (MVM) and fetal vascular malperfusion (FVM). RESULTS 50 placentas from patients with severe acute respiratory syndrome coronavirus 2 were examined [33 patients delivered at term, 12 patients were preterm, 4 cases were intrauterine fetal demise and 1 case was medical termination of pregnancy (MTP)]. Patients with risk factors for maternal and fetal vascular malperfusion were excluded. 8 cases showed features of maternal vascular malperfusion and 11 cases showed features of fetal vascular malperfusion. Among intra uterine fetal death (IUFD) cases, 2 cases showed features of vascular malperfusion, 7 cases showed low grade acute inflammatory pathology which needs further studies with a greater number of cases to establish relationship with Covid-19 virus. CONCLUSIONS Covid-19 placentas showed increased rates of maternal and fetal vascular malperfusion. These changes may reflect a hypercoagulable state influencing placental pathology and hence an increased antenatal surveillance for women diagnosed with SARS–CoV-2 infection may be warranted. Further studies with control groups are necessary to determine the reproducibility and significance of these initial findings. KEYWORDS Covid-19, Pregnancy, Maternal Vascular Malperfusion, Fetal Vascular Malperfusion.
Evaluation of Serial 2-D Sonographic Placental Volumetry and Umbilical Arterial Doppler and Their Correlation with Uterine Arterial Doppler in Predicting Adverse Fetomaternal Outcomes – An Observational Study from a Tertiary Care Centre in Pune, India
Authors: Ghosh Samrat , Shah Ankur , Chakraborti Ritwik , Sen Debraj
Published: September 2021

BACKGROUND An important part of human placental development is the extensive modification of maternal vasculature by trophoblasts. Fetal growth retardation (FGR) and preeclampsia (PE) are associated with deficient trophoblastic invasion and modification of the uterine spiral arteries leading to small-caliber vessels of high resistance which impairs placental blood flow, creating a hypoxic environment and subsequent oxidative stress. FGR and pre-eclampsia are important causes of maternal and perinatal morbidity and mortality and it is important to identify such ‘at risk’ pregnancies during routine antenatal care. Ultrasonography (USG) and colour-Doppler are readily available tools that may be used for identifying such ‘at risk’ pregnancies. The purpose of this study was to evaluate the accuracy of 2-D sonographic placental volumetry, umbilical arterial doppler and uterine arterial doppler in predicting adverse fetomaternal outcomes and compare the accuracy of these three tests with each other in terms of sensitivity and specificity. METHODS A total of 100 women were randomly selected from the antenatal clinics, and were subject to serial ultrasounds at 12 - 16 weeks, 20 - 24 weeks, and 28 - 32 weeks. The 2-D sonographic placental volume, umbilical and uterine arterial resistivity index (RI), and pulsatility index (PI) were measured. The pregnancies were followed up till delivery and the measurements were plotted against the actual placental weight and development of FGR and/or pre-eclampsia. RESULTS In pregnancies with FGR or pre-eclampsia, the placental volumes were low, and correspondingly the uterine and umbilical arterial RI and PI were high (increased impedance) as compared to the normal pregnancies. For the prediction of adverse outcomes, a receiver operating curve (ROC) analysis showed that placental volume and umbilical artery RI and PI had high sensitivity in the 1st-trimester, and high specificity in the 2nd-trimester. CONCLUSIONS 2-D sonographic placental volumetry and umbilical arterial Doppler studies may be used as 1st-trimester screening tools to predict adverse fetomaternal outcomes. These patients may be subjected to more intensive follow-up to minimize maternal and perinatal morbidity and mortality. KEYWORDS Doppler Ultrasonography; Fetal Growth Retardation; Placenta; Pre-eclampsia; Umbilical Arteries; Uterine Artery
Clinical Study of Lens–Induced Glaucoma in Elderly Population of Gulbarga
Authors: Sanganal Jyothi N. , K Manish
Published: September 2021

BACKGROUND In developing countries like India, it is essential to spread awareness about cataract and its complications like lens induced glaucoma, uveitis. Lens induced glaucoma (LIG) can lead to irreversible blindness due to secondary optic atrophy. The purpose of this study was to stress on early diagnosis and timely management in preventing blindness due to lens induced glaucoma in patients visiting ESIC Medical College and Hospital, Gulbarga. Karnataka. METHODS This retrospective descriptive type of statistical study was conducted in the Department of Ophthalmology, ESIC Medical College and Hospital, Gulbarga. Karnataka, from March 2018 to March 2021. Intraocular pressure (IOP) and visual acuity was recorded in all patients after through history taking, ocular examination and fundoscopy. After subjecting for exclusion criteria, cases of LIG were confirmed and included in the study. RESULTS In our study we found total 25 cases having LIG, in that 9 were male patients (36 %) and 16 were females (64 %). Phacomorphic glaucoma was recorded in 19 patients (76 %) and phacolytic glaucoma in 5 cases (20 %). Intraocular pressure of 40 - 49 mmHg was recorded in 16 patients (64 %) followed by 30 – 39 mmHg in 5 patients (20 %) and 50 – 59 mmHg in 4 patients (16 %). In our study, 13 patients had visual acuity of counting fingers (CF) 3 meters to 5 meters (52 %) followed by 6/60 to 6/24 (20 %) and hand movements to counting fingers 3 metres in (12 %) and one patient had no perception of light (4 %). All patients underwent cataract surgery with intraocular implantation under local anaesthesia. After 2 weeks of follow up, vision restored was between 6/9 - 6/18 (40 %) in 10 patients followed by 6/18 - 6/60 (28 %) in 7 patients and no improvement in vision in one patient. CONCLUSIONS Glaucoma is one of the causes for irreversible blindness. Though overall prevalence is less than 5 % but gets its one of major contribution from lens induced glaucoma. One good thing about LIG is patient presents early due to loss of vision and pain, so if we intervene with early diagnosis and manage patients, vision can be restored successfully. KEYWORDS LIG, Cataract, IOP, Phacomorphic Glaucoma, Photolytic Glaucoma
The Effect of Educational Intervention on Anxiety and Quality of Life Among Individuals Referring to Healthcare Centers in the Face of COVID-19
Authors: Zahedifar Fariba , Nejatifar Zahra , Rafiei Sima , Hashemi Fariba
Published: September 2021

Educational interventions are helpful strategies to empower communities encountering the threat of pandemics like Covid-19. This study was carried out to examine the effect of educational intervention on anxiety control and improvement in public quality of life. A quasi-experimental study. The study was conducted among individuals referred to healthcare centers of Qazvin province, Iran, in 2020. Given that Qazvin consists of nine urban healthcare centers, two centers were selected by a simple random selection method. After considering inclusion and exclusion mentioned criteria, 240 individuals were selected to participate in the research and were randomly assigned into two groups of experimental and control. Following the educational intervention, all study variables, including knowledge score, anxiety level, and quality of life, improved significantly in the experimental group compared to the pre-intervention phase (P<0.05). The most significant change was in knowledge score with a nearly large effect size (0.63), presenting an increase of 40.09% from 11.1 to 18.8 exactly after intervention and 12.2 after passing one month from the date of educational intervention; while the quality of life presented a 3.2% increase with a small effect size (0.28). Our findings have implications for the development and implementation of psychological interventions, particularly educational programs. During the outbreak, such strategies can empower the public and diminish the negative emotional effects of the pandemic, helping people to cope with the current situation, and decrease the risk of suffering future psychological disorders.
Morbidity Pattern With Treatment Outcome and Predictors of Mortality of Children Admitted to Pediatric Intensive Care Unit in a Peripheral Medical College in India
Authors: Kumar Dey Pranab , Ghosh Arindam , Hemram Sunil Kumar , Mukherjee Meghna , Annigeri Saba , Nair Anupama
Published: September 2021

To capture lapses in management, active surveillance of pediatric intensive care unit (PICU) admissions should consider as an essential tool to bring a better outcome with available resources, while there is a scarcity of data from comparatively newly set up peripheral PICU in developing countries. An observational record-based cross-sectional study was conducted in a peripheral medical college PICU over one year to evaluate morbidity pattern, outcome, and predictors of mortality. Binomial logistic regression (SPSS version-25) was used for analysis. The confidence interval (CI) of Odd’s ratio was used to report the strength of association between dependent and independent variables. Pneumonia was the major cause of admission (27%), followed by septicemia (25.5%), congenital heart diseases (12.2%), bronchiolitis (6.6%), seizure disorders (8.6%), encephalitis (5%), and meningitis (4%). 51.7% were discharged, 14.6 %were referred, 3.2% were left against medical advice, and 30.4% were expired. Pneumonia (46.44%) was the most common cause of death, followed by sepsis (42.07%), congenital heart disease (15.3%), and bronchiolitis (6.01%). The mean duration of stay in PICU was five days (range 1-31 days). Patients who required ventilation (40%) or Inotropes (55.6%) had increased risk of mortality by 14 and 8 times, respectively. Age below one year, presence of bronchiolitis, pneumonia, ARDS, encephalitis, anemia, sepsis, dyselectrolytemia, and requirement of inotropes or ventilation were statistically significant risk factors for mortality (P<0.05). These predictors of morality will help to identify severe cases, prioritize resources and focus on the preventable methods in the public such as a vaccine, creating awareness about diseases, and proper referral.
“Bodies can be compelled; minds must be turned, since they cannot be compelled”: Preaching as an “Introduction” to Law in the Ecclesiastes of Erasmus of Rotterdam
Authors: Nowakowski Dawid
Published: September 2021

The recent studies on the relations between humanism or humanists and jurisprudence convince that Reneaissance, especially in XVIth century, when the national states began to raise, belonged to the periods of increased interest in the issue of law. Although Erasmus was not a layer, nor he introduced in any of his works a complete theory of law, he maintained close relations with many leading theoreticians of the law and jurists (Alciati, Budé, Cantiuncula, Zasius) and sometimes spoke in the legal discussions of his age. Among hist most important works concerning the matter of law were: Institutio principis Christiani, Ratio seu Methodus verae theologiae, Christiani matrimonii institutio, De interdicto esu carnium and Ecclesiastes. In the paper I’m going to concentrate on this latter work, in which Erasmus discusses the significance of preaching, preacher and widely understood Christian rhetoric. In the Ecclesiastes Erasmus touches the law subject with the special emphasis on historical character of law and relations between the divine law, the law of Christ and the law of Nature. After a short discussion about his understaning of law I will concentrate on the essential differentiation between the letter of law and the spirit of law, and I will point at proposed by Erasmus ways of introduction of law into human life. Erasmus, on the one hand, escaped a rigidity and abstraction of law and, on the other, he neutralised an aspect of the coercion of law. In his solution Erasmus appreciated the political dimension of preaching and acknowledged preacher as a more important guide of the people, than ruler. I’m going to interpret the Erasmian concept of preaching as an rhetorical mean of introduction of law in analogical way to “introduction” proposed by Plato in his Nomoi.
Witold Gombrowicz, pisarz argentyński. Antologia
Authors: Gasparini Pablo , Silvana Mandolessi , Amícola José , Dapía Silvia , Bueno Mónica , Hochman Nicolás , Piglia Ricardo , Saer Juan José , Aira César , Gamerro Carlos
Published: September 2021

Niniejsza antologia jest zbiorem tekstów napisanych o Witoldzie Gombrowiczu w Argentynie i ujmujących jego dzieło oraz legendę życia w kontekście tamtejszej tradycji literackiej. W Części krytyków odnajdziemy m.in. studia na temat Gombrowicza jako jednego z odwiedzających Amerykę Południową europejskich intelektualistów, analizę jego travel writings, omówienie relacji łączących go z argentyńskim światem literackim, w szczególności z Jorge Luisem Borgesem oraz Macedoniem Fernándezem, a także opracowanie na temat Gombrowiczowskiej narracji detektywistycznej. Część pisarzy obejmuje klasyczne już teksty najważniejszych współczesnych pisarzy argentyńskich: Ricarda Piglii i Juana José Saera, a także nowsze interpretacje, autorstwa Césara Airy i Carlosa Gamerro. „Antologia jest oryginalnym i istotnym wkładem w rodzimą wiedzę na temat związków Witolda Gombrowicza z Argentyną nie tyle na poziomie życiorysu, co zostało już zbadane przez Ritę Gombrowicz i Klementynę Suchanow, ile na poziomie myśli i tekstów literackich. Autorka antologii dobrała prace argentyńskich badaczy w sposób trafny i aktualny, zachowując jednocześnie pluralizm punktów widzenia i tez interpretacyjnych.” dr hab. Justyna Ziarkowska, prof. UWr
“Del árbol al cuadro”: Un proyecto didáctico STEAM para Educación Primaria
Authors: Villalba Gómez José Víctor , Robles Moral Francisco Javier
Published: September 2021

El proyecto “Del árbol al cuadro” es una innovación educativa interdisciplinar, basado en la enseñanza STEAM. Este proyecto dirigido al último tramo de Educación Primaria, presenta un trabajo interdisciplinar entre las áreas de Ciencias de la Naturaleza y Educación Artística, desarrollando una serie de actividades que tienen un denominador común: conocer el principal paisaje de la comarca Vega Alta del Segura de Murcia (Cieza), y sus posibilidades como fuente de materia papelera. Este proyecto basa su trabajo en la combinación de actividades didácticas de diversas áreas de conocimiento, pero vinculadas con las ciencias y el arte. Dando como resultado una programación de 5 sesiones, desde una salida didáctica hasta una exposición artística, pasando por la recolección de materia prima, creación de la pasta papelera y por la prueba con diversas técnicas pictóricas.
Overview of the Priority 2030 Strategic Academic Leadership Program
Authors: Serebriakov Andrei
Published: September 2021

The development of academic leadership is an important task that has been set for the domestic scientific community. One of the first projects aimed at solving it was the Russian Academic Excellence Project. Although this project did not fully achieve its goals, nevertheless, it introduced Russian universities to world standards and made it possible to create some groundwork for future programs of this kind. The conceptual continuation of the Russian Academic Excellence Project is the new Priority-2030 program. The overview provides basic information about the new program of strategic academic leadership “Priority 2030”. Its goalsand main features are highlighted. The normative documents governing the procedure for the implementation of the Priority-2030 program are presented. Some controversial aspects that could potentially have a negative impact and reduce the positive effects from the implementation of the Priority 2030 program are noted.
Transfer of Students’ Human Capital in the Russian Education System
Authors: Ambarova Polina
Published: September 2021

The article is dedicated to the sociological interpretation of such a phenomenon as human capital transfer in educational communities. The first part reveals the content of the concept of «transfer of students’ human capital», while justifying its application in the study of the educational failure/success of schoolchildren and students. The second part presents a theoretical model of the considered phenomenon through such structural elements as goals, subjects, processes and mechanisms. The third part is devoted to the contradictions in the transfer of human capital within educational communities in Russia. The contradictions between goals and interests of the subjects of education are regarded as the key ones. The final part expands on how significant the concept under consideration is to sociology of education. The results of an interdisciplinary study conducted in 2019–2021 in Sverdlovsk region’s educational facilities (schools, colleges, universities) serve as the empirical foundation for the article. It is shown that transfer of students’ human capital is a kind of capital movement, with its features determined by the social nature of educational activities and interaction. The process under study is associated with such a phenomenon as academic success/failure of students, given that while it unfolds the human capital of schoolchildren and students can either be developed or depleted. The transfer of human capital involves three groups of education subjects — actors, agents and participants who perform certain social roles and possess varying opportunities for regulating this process. The empirical data is interpreted based on the proposed theoretical model, with the results indicating the contradictions of the goals, vectors and results of the transfer of human capital among Russian students.
KARAKTERISTIK FISIKOKIMIA SELAI KULIT BUAH NAGA (Hylocereus polyrhizus) DENGAN PENAMBAHAN VARIASI KONSENTRASI BUAH NANAS (Ananas comosus L.)
Authors: Palupi Pratiwi Jati , Prasetia Retno , Pratama Muh. Doddy , Sriwahyuni Indah
Published: September 2021

Dragon fruit peels (Hylocereus polyrhizus) are generally only considered trash by the public because they are considered useless, even though dragon fruit peels still contain useful nutrients. Dragon fruit skin can be used as food, one of which is a jam. The addition of pineapple fruit variations to dragon fruit peel jam as a flavor enhancer and natural fragrance to reduce the use of sugar in jam and the aroma of pineapple fruit can mask the distinctive aroma of dragon fruit which is less desirable. The purpose of this study was to determine the appropriate concentration variations in the manufacture of dragon fruit peel jam with the addition of pineapple, which consumers liked. This study used a completely randomized design with six (6) treatments and two (2) replications. Dragon fruit peel jams analyzed by chemical tests included moisture content, sugar level, and pH, while organoleptic test included color, texture, taste, aroma, and a total of 30 untrained panelists. Observation data were processed using ANOVA (α = 5%) and further tested using the honest significant difference test (BNJ) (α = 5%). The results showed that the pineapple’s addition to dragon fruit peel jam had a very significant effect on the panelists' preference for aroma and taste, but not significantly different from the color, texture, and chemical characteristics of jam. The N6 treatment (dragon fruit peel 250 g: pineapple fruit 250 g) was the best jam, based on chemical characteristics (pH content of 3.52, moisture content of 18.65%, sugar level of 53.30%) and preferable in organoleptic characteristics (2.97 of color, 2.97 of texture, 2.97 of flavor, 3.00 of taste).

Keywords: agricultural waste, dragon fruit peel, jam, pineapple
KARAKTERISTIK KIMIAWI DAN AKTIVITAS ANTIOKSIDAN DAUN KERSEN (Muntingia calabura) PADA KETINGGIAN WILAYAH YANG BERBEDA
Authors: Rakhmadevi Ade Galuh , 'Azizah Maria , Handayani Anna Mardiana
Published: September 2021

Kersen trees (Muntingia calabura L.) are included in the Elaeocarpaceae family and are mostly used as a protective tree. The kersen leaves were an environmental waste (trash) and still lacks implementation in food processing. This study was aimed to determine the chemical characteristics and antioxidant activity of kersen leaves at different altitudes and their potential as an herbal tea. The difference in the height of the place to grow will be used as a factor to be studied so that this study uses a completely randomized design with a one factor pattern (height the place of growings). Kersen leaves were taken from three districts, namely Jember (83 amsl/above mean sea level), Situbondo (5 amsl), and Bondowoso (255 amsl). The results showed that the chemical characteristics of kersen leaves consisting of moisture content, ash content, fat content, and carbohydrate content were not significantly different between regions, while protein content and antioxidant activity levels were significantly different between regions.

Keywords: antioxidant activities, kersen leaves
KARAKTERISASI KEKERASAN DAN STRUKTUR MIKRO BAJA AISI 410 PADA PROSES TEMPERING DENGAN VARIASI MEDIA PENDINGIN
Authors: Rais Jamaludhin , Sunardi Sunardi , Listijorini Erny
Published: September 2021

In AISI 410 steel, the characteristic changes observed in this study were the value of hardness, and microstructure shape. Material samples heated on temperature 9000C and held for 45 minutes, with cooling medium variation used are water, used oil, and SAE 20W-50 oil. In the process, tempering the material sample returns heated on 3000C and held for 15 minutes, then cooled in the room open. The results showed that the microstructure formed in AISI 410 steel after heat treatment is martensite lath, ferrite and austenite. From the results has been obtained, that the quenching process with a variety of cooling media used and followed by the tempering process can affect the shape of the microstructure of AISI 410 steel, changes that occur are increase in the hardness value of the material. The results showed that the sample quenching water had the highest hardness is 378 HV, followed by quenching of SAE 20W-50 oil and used oil with grades of 377 and 362 HV, respectively. The increase in hardness value occurs due to changes in the micro structure that occur due to the heat treatment process. The increase in the value of hardness that occurred in the material was 143.7%.
Retrospective Study of 114 Free Flaps for Head and Neck Oncological Reconstruction in a Portuguese Tertiary Cancer Center
Authors: Silva Andreia , Caixeirinho Patrícia , Vilares Miguel , Semedo Carina , Martins Mariluz , Zagalo Carlos , Casal Diogo
Published: September 2021

Introduction: The Portuguese experience in microsurgical reconstruction of the head and neck after oncological surgery is scantly described. The primary aim of this study was to characterize the use of microvascular reconstruction after head and neck tumor resection in a Portuguese tertiary oncological centerMaterial and Methods: The authors retrospectively evaluated 114 microvascular free flap procedures performed for head and neck reconstruction after oncological resection in a department of Head and Neck Surgery of a Portuguese tertiary oncological center. Patients were operated on from January 2012 to May 2018. Data on patient demographic features, tumour characteristics, perioperative complications, postoperative aesthetic and functional results, survival time and time to recurrence were extracted.Results: Most tumours mandating microsurgical reconstruction were mucosal squamous cell carcinomas (85%) and were located in the oral region (95.6%). Around 45% of the patients had a T4a tumour and 30% a T2 tumour. Cervical metastases were present in 45.6% of the cases. The radial forearm flap and the fibular flap were the most commonly used microsurgical reconstructive options (58% and 41%, respectively). More than 80% of patients had no post-operative complications. Partial necrosis of the flap occurred in 6.1% of patients, while total flap necrosis occurred in 3.5% of cases. Aesthetic and functional results were considered at least satisfactory in all patients in which the flaps survived.Conclusion: Microvascular reconstruction seems like a reliable treatment option in head and neck oncological surgery at our institution.
Oficinas de criatividade em matemática
Authors: Costa Ildenice Lima , Silva Alessandra Lisboa da , Gontijo Cleyton Hércules
Published: September 2021

A pesquisa “Ativando o pensamento crítico e criativo das crianças em matemática” realizada em Brasília – DF, trata de uma intervenção com estudantes dos anos iniciais do ensino fundamental de uma escola pública, para estimular o pensamento crítico e criativo, bem como analisar os efeitos do uso de técnicas de criatividade no rendimento escolar, na motivação e na criatividade em matemática. Foram realizadas oito “Oficinas de Criatividade em Matemática" nas quais os estudantes foram instigados a criar estratégias para solucionar problemas matemáticos, conforme as competências e habilidades previstas na Base Nacional Comum Curricular (BNCC). Os resultados mostraram a viabilidade das oficinas para motivar os estudantes nas tarefas matemáticas e promover aprendizagens significativas. Com as oficinas, podemos diversificar as avaliações e estratégias metodológicas de ensino, de modo a possibilitar o desenvolvimento do potencial crítico e criativo dos estudantes e auxiliar a prática docente.
Uma visão política-administrativa e morfológica dos balneários Esplanada e Campo Bom do Município de Jaguaruna, SC
Authors: Becker Cintia , Barboza Eduardo Guimarães , Martins Eduardo Marques
Published: September 2021

Historicamente, a urbanização litorânea se deu de forma desordenada e desplanejada causando grande pressão sobre os ambientes naturais. Com a finalidade de planejar o espaço e organizar os atores, surge a Gestão Costeira Integrada; alternativa que permite a avaliação e organização dos conflitos. O presente trabalho foi realizado na região centro-sul do Município de Jaguaruna/SC, nos balneários Esplanada e Campo Bom. Com o objetivo de entender o panorama do atual estado da região em relação ao Gerenciamento Costeiro Integrado, utilizou-se o Decálogo como ferramenta de identificação. Paralelamente, foi realizado um mapeamento do uso da terra, a fim de avaliar a ocupação urbana. Para entender o comportamento evolutivo da barreira costeira e identificar a origem dos corpos hídricos da região foram utilizados dados geofísicos obtidos com um Georadar (GPR). Os resultados mostraram que a expansão urbana ocorre em um litoral com padrão de empilhamento estratigráfico progradacional. Constatou-se, ainda, que a pouca eficácia e as dificuldades para a implementação de políticas e ações relacionadas à gestão costeira na esfera local decorrem de condições administrativas insuficientes, além da falta de recursos, tanto técnico quanto financeiros, para a implementação de projetos de melhoria das condições socioambientais da zona costeira.
Evolução das bases teóricas e metodológicas para identificação das mudanças, oscilações e pulsações climáticas
Authors: Rubira Felipe Gomes , Perez Filho Archimedes
Published: September 2021

O desenvolvimento deste artigo surge em razão da distinção conceitual entre três grandes grupos de eventos climáticos baseados na durabilidade e ciclicidade temporal de determinada tendência dos fenômenos atmosféricos: mudanças climáticas, oscilações climáticas e pulsações climáticas. Assim, objetiva evidenciar cronologicamente a evolução de algumas bases teóricas-metodológicas responsáveis pela identificação de episódios paleoclimáticos vinculados aos conceitos estabelecidos. A análise foi conduzida de modo a destacar as primeiras constatações de eventos glaciais e interglaciais (mudanças climáticas), abordando antigas nomenclaturas e técnicas de identificação pautadas em datações relativas. A posteriori são promovidas discussões sobre a revolução dos isótopos cosmogênicos, responsável pelo aperfeiçoamento do reconhecimento das mudanças climáticas e primeiras identificações de oscilações climáticas. Trata-se especificamente dos estudos das razões de isótopos de oxigênio (16O, 18O) em foraminíferos de leitos marinhos, bem como das novas nomenclaturas desenvolvidas. Por fim, são abordadas discussões teóricas que evidenciam subsídios metodológicos das Geociências para identificação de pulsos climáticos de curta duração, ocorridos em escala de tempo recente da natureza a partir de distintos métodos de datação aplicados em inúmeros proxies/registros existentes. Verifica-se aperfeiçoamento da identificação de eventos paleoclimáticos de diferentes durabilidades e ciclicidades temporais, condizente com refinamentos metodológicos impulsionados por avanços tecnológicos inerentes às Ciências da Terra.
Emprego de segmentação multiresolucional no mapeamento digital de formas de relevo
Authors: Bortolini Willian , Da Silveira Claudinei Taborda
Published: September 2021

As técnicas geomorfométricas, baseadas na análise orientada a objeto e que empregam o algoritmo de segmentação multiresolucional, apresentam potencialidade de aplicação no mapeamento digital do relevo. O artigo teve como objetivo demonstrar a classificação semiautomatizada de padrões de formas de relevo com o emprego de segmentação multiresolucional. Foram calculados de um MDT os parâmetros: declividade, relevo sombreado, índice de posição topográfico, amplitude altimétrica, média da declividade e média do índice de densidade de rupturas de declive, seguido da execução de seis etapas de segmentação e classificação: a primeira classificou as planícies fluviais; as duas próximas classificaram as áreas por nível de dissecação (baixa, média e alta) e as demais classificaram os padrões pertencentes a cada níveis. Os resultados obtidos foram doze padrões de formas de relevo: 1) planícies fluviais, 2) colinas, 3) colinas onduladas, 4) morrotes do tipo I, 5) morrotes do tipo II, 6) morros do tipo I, 7) morros do tipo II, 8) morros declivosos do tipo I, 9) morros declivosos do tipo II, 10) morros declivosos do tipo III, 11) morros elevados do tipo I e 12) morros elevados do tipo II, que apresentaram acerto de 77%, verificados a partir de 155 observações realizadas em campo.
Why do large rivers tend to form multichannel? A field study in the Upper Paraná River
Authors: Stevaux José Cândido , Gon Priscila Panzarini , Leli Isabel Terezinha , Fujita Rafaela Harumi
Published: September 2021

Anastomosed rivers include a diverse group of fluvial forms with multiple and interconnected alluvial channels. They occur in a wide range of climates and reliefs and constitute the typical pattern of the mega rivers (Qm> 17,000 m3s-1). Several authors have assumed that the development of an anabranching formation is the mechanism by which a channel maintains its maximum efficiency. However, this has only been tested by mathematical studies. In this study, we confirm this theory in a 58-km anabranching reach of the Upper Paraná River, through a hydraulic and bathymetric survey of 14 cross-sections. We conclude that where the slope can'tincrease, the channel reduces its w:d ratio, thereby maintaining its efficiency in the wider sections, according to the specific stream power equation (ω=ρgQs/w). The channel width and alluvial plain width are controlled by allochthonous factors (tectonic lineaments and bank composition). Although the nodal sections have the greatestefficiency, we confirmed that flow efficiency is maintained at a constant level of bedload transport and specific stream power along the anabranching reach.
Efeitos marinho e fluvial na dinâmica dos ambientes inundáveis do Estuário Superior do Rio Pará, Norte do Brasil
Authors: Rodrigues Ribeiro Samuel , Célio Valadão Roberto
Published: September 2021

Nas regiões litorâneas os ambientes inundáveis ocorrem no baixo curso dos rios e de seus afluentes, onde o ciclo diário de inundação comandado por marés resulta em condições hidrodinâmicas de considerável complexidade. Na costa norte do Brasil, na adjacência do Sistema Tocantins-Maratauíra (STM), estuário do Rio Pará, os ambientes inundáveis reúnem características físicas que incluem uma geografia insular de retaguarda continental, intensa descarga fluvial e um regime de marés com amplitude de até 6 m. A fim de compreender como os ambientes inundáveis desse estuário são afetados por marés, este trabalho se apoia em abordagem multi-proxy (hidrodinâmica, topografia, vegetação, morfologia e cobertura sedimentar superficial) para a delimitação do estuário do rio Pará em zonas e para a investigação dos ambientes inundáveis do STM, relacionando-os à zona estuarina correspondente. Baseado nos resultados alcançados, três ambientes inundáveis e um não inundável foram reconhecidos. Esses ambientes integram o Estuário Superior do Rio Pará e têm seu ciclo de inundação regido por mesomarés. Por outro lado, devido à alta descarga fluvial, a paisagem ecológica é constituída essencialmente por ecossistemas de água doce. Os resultados revelam que os ambientes mais suscetíveis à inundação se situam no intervalo entre 0 e 3 m e representam 39% do complexo insular. Paradoxalmente, a maior ocorrência destes ambientes inundáveis é no setor sul (40,6%), direcionado ao continente, realçando a natureza dinâmica e mais instável desse setor em relação ao setor norte (21,1%), direcionado ao mar. As evidências mostram ainda que a maré representa uma das principais forçantes indutoras da hidrodinâmica local, tornando os cursos integrados à rede de drenagem do STM compatíveis com a designação de rios de maré. Os resultados proveem melhor compreensão acerca da morfodinâmica da paisagem moderna e, ao mesmo tempo, expõem sua vulnerabilidade, tendo em vista sua ocupação humana.
An investigation of employee empowerment as an organisational culture in the South African public sector
Authors: Mbangeleli Noluthando , Ojugbele Hammed Olabode
Published: September 2021

This paper examines how employee empowerment impacted the South African public sector. A qualitative research approach was utilised based on the narratives and stories of seven employees operating in the Eastern Cape Province of South Africa from the Department of Economic Development, Environmental Affair Tourism (DEDEAT) and East London Industrial Development Zone (ELIDZ) gathered through the use of in-depth interviews. It was found that the concept of empowerment has not been fully institutionalised in the Public sector. The research suggests strategies that managers can adopt to assist instutionalise Employee empowerment in the Public sector. This study extends and advances the literature on employee empowerment and more particularly psychological empowerment. The study found employee empowerment to be a vital tool to improve service delivery in the Public sector. However, it was found that more personalised approaches like delegation and mentorship can be institutionalised for psychological empowerment purposes. In general, the findings indicated that Employee empowerment has a positive influence on organisational performance and service delivery.
Motivation and loyalty of Indonesian medical tourists toward Malaysian health services
Authors: Morissan Morissan , Guan Gan Gerald Goh
Published: September 2021

This study aims to find out which factors, between the word of mouth (WoM) or marketing promotion programs (MPP), drive motivation (push and pull); to explore the influence of travel motivation toward satisfaction, and to investigate the satisfaction effect of medical tourists with loyalty. This study used a survey method by distributing questionnaires to medical tourists from Indonesia (N = 152) who have visited hospitals in Malaysia for medical care at least once. Data analysis was carried out using several statistical procedures. Firstly, a multivariate test was conducted to find out whether there is a statistically significant difference in the push and pull motives based on the influencers. Second, multiple linear regression is performed to find out the influence of push and pull variables on satisfaction. Finally, a simple linear regression is calculated to find out the influence of satisfaction on loyalty. The findings show that there is a statistically significant difference in the push and pull motives based on the influencers (WoM or MPP). The effect size of both push and pull is almost equal. The relationship between push or pull and satisfaction is also statistically significant as 41.3% of the variance in the satisfaction is explained by the push and 51.8% by pull factors. Finally, satisfaction is a significant predictor for loyalty while 90.2% of the variance in loyalty is explained by satisfaction.
The mediating role of task-technology fit (TTF) in the effect of knowledge sharing intention on job satisfaction and employee performance
Authors: Tri Kurniawati Desi , Ikhram W M Abdi Dzil , Yuana Pusvita
Published: September 2021

Public service offices are currently required to provide services effectively and efficiently. Therefore, technology plays a role in helping employees to be able to finish the job. The use of technology makes employees able to achieve high satisfaction and productivity. To be able to take advantage of existing technology, a collaboration between employees is needed through knowledge sharing. This study focuses on the context of the role of task-technology fit in mediating the relationship of knowledge sharing intention to employee satisfaction and performance. This is explanatory research was conducted through a  survey of  412 employees of the State Treasury Service Office (KPPN) in the East Java Province. The structural Equation Model (SEM) approach was used and 214 questionnaires were processed with WarpPLS. The results of this study indicate that knowledge sharing, intention affects task-technology fit (TTF) and task-technology fit (TTF) also has a significant effect on employee satisfaction and performance.
The effect of auditors’ competence and moral reasoning towards audit quality with audit time budget as moderating
Authors: Sari Selly Puspita , Sudarma Made , Andayani Wuryan
Published: September 2021

This study aims to examine the effect of auditors’ competence and moral reasoning towards audit quality with audit time budget as moderating. This research is important because the users of financial statements give confidence to the auditors in providing information in the form of reports and opinions on the audits carried out. So that the resulting audit quality must meet the provisions of auditing standards. High audit quality will produce reliable financial reports as a basis for decision-making. The quality of this audit will be maintained if the auditor has adequate competence and follows the audit procedures that have been determined. The data collection technique used in this study was a questionnaire. The population used is all internal auditors of the Malang City Inspectorate and Batu City in East Java, as many as 50 auditors. The sampling method used in this study is the saturated sample method. The saturated sample method is a sampling technique when all members of the population are used as samples. Technical analysis in this study uses Moderated Regression Analysis (MRA). This study shows that competence and moral reasoning significantly improve audit quality. The more competent an auditor is, the more quality the audit will produce. In addition, the higher the moral reasoning possessed by an auditor, the better the quality of the audit produced. In this study, the audit time budget cannot moderate the effect of competence towards audit quality. While the audit time budget can moderate the effect of moral reasoning towards audit quality.
Leadership and organizational distress: Review of literature
Authors: Ahmed Eltigani Mohamed Ali
Published: September 2021

The financial system in any country plays a critical role in facilitating payment and providing policy and performance anchors to the economy. Therefore, systemic financial distress manifests in industry-level financial distress by front-hitting the financial system first. Financial organizations’ failure triggers a domino effect on the whole ecosystem, and therefore financial institutions enjoy various layers of protection when their operations show signs of distress. Several financial industry players worldwide have experienced financial distress in one form or another during episodes of systemic crisis such as the 2008 international financial crisis. Although the distress might not have necessarily led to bankruptcy or liquidation in some cases, it left several questions unanswered, particularly with respect to a leadership role, ecosystem contingencies, and the recovery mechanism. This study scanned recent extant literature on organizational financial distress and identified essential gaps for future research. The study provided a holistic review of antecedents, outcomes, and intra-industry characteristics of financial distress. The study found that the leadership role as an orchestrative agent in an organizational ecosystem has not been adequately addressed in the extant literature. The study contributes to the literature by clarifying leadership aspects of systemic financial distress by placing leadership within the core of the financial ecosystem before, during, and after distress. Outcomes and recommendations for future research are proposed.