bluuebunny/crossref_metadata_2025 huggingface dataset:
EVALUATION OF INFLAMMATORY BIOMARKERS IN CHRONIC KIDNEY DISEASE ASSOCIATED WITH CARDIOVASCULAR DISEASE IN A TERTIARY CARE HOSPITAL OF WEST BENGAL
Authors: Sircar Swagata , Kundu Sourav , Wasif Imam Parvez , Bhakta Santanu
Published: May 2023

Introduction: Factors responsible for cardiovascular disease (CVD) become operational from the early course of CKD and are spread over the entire spectrum of it. The relative risks of cardiovascular events are inversely related to the estimated glomerular ltration rate (eGFR). A patient with CKD is more likely to die from CVD rather than CKD which denotes high burden of CVD in subpopulation and need for early intervention to reduce mortality. Generally in the population, early CKD, atherosclerotic disease is predominant cardiovascular disease but as the CKD progresses the burden of non-atherosclerotic disease increases.Aims:To evaluate relation of Inammatory Biomarkers (IB) in CKD patients with and without ECG and Echocardiography evaluated LVH and IHD with hypokinetic or dyskinetic wall motion with specic ECG changes in KPCMCH. Materials and method: This study was conducted 18 months at KPC medical college and hospital jadavpur, kolkata-72. 100 patients were included in this study. Result: Our study showed that, majority number of patients were Abnormal [64 (87.7%)] in with Echo LVH compared to [16(59.3%)] without Echo LVH it was statistically signicant (p=0.0016) and we also found that, majority number of patients were Abnormal [64(87.7%)] in with Echo LVH compared to [17 (63.0%)] it was statistically signicant (p=0.0272). Conclusion:We concluded that the frequency and types of cardiovascular diseases associated with different stages of CKD, traditional risk factors in CVD associated with various stages of CKD
“ABERRANT PRESENTATION OF SJOGREN'S SYNDROME LEADING TO HYPOKALEMIC PERIODIC PARALYSIS – A CASE REPORT”
Authors: Nagariya Poojan , Jain Kanishk , Kumat Kshitij
Published: May 2023

Tubulointerstitial nephritis (TIN) is the main renal involvement associated with primary Sjögren syndrome (pSS). TIN can manifest as distal renal
tubular acidosis (RTA), nephrogenic diabetes insipidus, proximal tubular dysfunction, and others. We present a 50-year-old female with
hypokalemic paralysis due to distal RTA(dRTA). She received symptomatic treatment and potassium supplementation with a good response. The
evidence suggests that there is an inammatory background and therefore a potential serious affection to these patients, such as hypokalemic
paralysis. For pSS-associated Tubulo-interstitial nephritis, we suggest symptomatic therapy with potassium supplementation and corticosteroids
combination in treatment.
RECONSTRUCTION OF PINK ESTHETICS USING SCALPEL TECHNIQUE : A CASE REPORT
Authors: Malhotra Sakshi
Published: May 2023

Gingival pigmentation in anterior region alongwith high smile line often causes esthetic concern. Twenty-one years old sytemically healthy, nonsmoker female patient was reported in the department with chief complaint of brown gums in front teeth region. Gingival depigmentaion using scalpel technique was planned and patient-based evaluation of statisfaction in terms of esthetics was recorded using visual analogue scale. After one month of surgery patient reported visual analogue score of 10. This study suggests that scalpel technique is simple and effective in terms of achieving acceptable esthetics.
EVALUATION OF THE MOST RELIABLE FORMULA BASED ON RBC INDICES TO DIFFERENTIATE BETWEEN β-THALASSAEMIA TRAIT AND IRON DEFICIENCY ANAEMIA IN TERTIARY CARE TEACHING HOSPITAL - CROSS-SECTIONAL OBSERVATIONAL STUDY
Authors: Raut Punam , Patil Tushar
Published: May 2023

Introduction: Hemoglobinopathies are the most common genetic disorders reported worlwide. According to WHO, 5% of the world population is
a carrier for hemoglobin disorders. The aim of the study was to determine the most Aims and objective: reliable formula based on RBC indices for
screening β-Thalassemia Trait (βTT) and iron deciency anaemia (IDA).Materials and Methods: During 1.5 year period, a cross-sectional study
was carried out on 110 diagnosed cases of IDA and βTT of all age groups. All the samples were tested for complete blood count and HPLC study.
Results: The Mentzer index showed good sensitivity, specicity, with Youden's index values of 98.7%, 82.3%, and 81%, respectively. Mentzer
index> Srivastava index> Green and King index> England and Fraser index> Ricerca index> Shine and Lal index. The percentage of Conclusion:
correctly diagnosed patients of ß-TT as well as IDA was the highest with the Mentzer index (87.27%). Cell-count-based parameters and formulas,
particularly the MCV and RBC counts and their related indices (Mentzer index), have good discrimination ability in distinguishing ß-TT from
IDA.
CIRRHOSIS OF LIVER AND INSULIN RESISTANCE- AN OBSERVATIONAL STUDY IN ASSAM
Authors: Baruah Lakee , Rajkakati Rashmi , Das Monigopa , Das Juma , Gupta Pratim
Published: May 2023

Background:- The prevalence rate of Diabetes Mellitus in cirrhosis of liver varies from 35 to 71%. Diabetes developing in such cases is referred to as Hepatogenous Diabetes. Studies on insulin resistance and Cirrhosis of Liver in North-East India is, however, limited. Aims And Objectives- 1) To estimate fasting plasma glucose and fasting Insulin levels in patients with Cirrhosis of Liver. 2) To calculate HOMA-IR in these patients. Materials And Methods- Ahospital-based observational study on 110 non-Diabetic patients having Liver Cirrhosis was undertaken. Cases were divided according to Child Pugh classication into Grade A, B and C. Fasting plasma glucose and fasting Insulin were estimated in VITROS-5600 Autoanalyzer and HOMA-IR was determined for each case. Results-The mean insulin level was 5.8±2.3 in Child Pugh A, 7.5±3.5 in Child Pugh B and 22.2±11.5 in Child Pugh C. The mean HOMA-IR was 1.3±0.6 in Child Pugh A, 1.8±0.9 in Child Pugh B and 5.8±3.5 in Child Pugh C. The difference in Fasting Insulin and HOMA-IR in Child Pugh Grade A, B and C was found to be statistically signicant (p<0.05). Conclusion- It can be concluded that insulin resistance is maximum in cases with Cirrhosis of Liver having highest Child Pugh grading. Follow-up studies may help in demonstrating Insulin Resistance with increasing grade of Liver Cirrhosis.
FUNCTIONAL OUTCOME OF DISPLACED SUPRACONDYLAR HUMERUS FRACTURE IN CHILDREN MANAGED WITH PERCUTANEOUS PINNING - A PROSPECTIVE STUDY
Authors: Ajay B S Rithik , Bommusamy Jayakumar , T Kamalesh , M Antony Abraham , Anand M Gokul
Published: May 2023

Background: The majority of elbow injuries in children are supracondylar fractures of the humerus, accounting for around 60% of all elbow injuries in the rst ten years of life. Associated with complications like compartment syndrome, neurovascular damage, Volksman'sischaemic contracture and malunion. Two lateral pins or a cross pin construction are the most popular options for pinning. As compared to alternative treatment options, closed reduction and percutaneous K-wire xation are the most effective and least invasive. Complications like malunion, loss of reduction and compartment syndrome may arise from treating it conservatively. This research evaluates the functional and radiological results of closed reduction percutaneous K wire treatment for displaced supracondylar humerus fractures in children. Based on Materials and Methods: the inclusion and exclusion criteria from the consecutive sampling, 32 patients were chosen for the research. All patients had percutaneous K wirexation using the usual procedure. 20 children (63%) of them were affected in their rs Results: t decade of life, with a clear male predilection than females. Mayo elbow scoring was 2.5, 6.0 and 3.75 at 6 weeks, 3 months and 6 months. PTI and Cubitus Rectus was noted in 8 and 2 respectively in our study population. Clinical outcomes measured by Flynn criteria was poor in 2 cases, satisfactorily excellent in 28 and satisfactorily good in 2 case. Closed reduction and percutaneous pinning either by crossed conguration or by latera Conclusion: l pinning is the treatment of choice for paediatric supracondylar humerus fractures. Regardless of the conguration, the proper pinning method guarantees a successful result. Closed reduction and percutaneous pinning is a safe, cost-effective, less morbid procedure.
FUNCTIONAL OUTCOME OF SIMULTANEOUS BILATERAL TOTAL HIP ARTHROPLASTY IN TERMS OF ENCOUNTERED COMPLICATIONS
Authors: Singh Rupendra , Kumar Pachori Sachin , Meena Harishankar , Sharma Saksham
Published: May 2023

Sir John Charnley gave the concept of low friction arthroplasty which 1 revolutionized the concept of total hip arthroplasty . Total hip arthroplasty (THA) is among the most successful surgical operations because it relieves pain and restores hip function and mobility for [2],[3] various end-stage degenerative conditions of the hip joint .
A COMPARATIVE STUDY: LISFRANC JOINT INJURIES TREATED WITH PRIMARY ARTHRODESIS VERSUS OPEN REDUCTION INTERNAL FIXATION
Authors: M Antony Abraham , Bommusamy Jayakumar , James Boblee , T Kamalesh , Anand M Gokul
Published: May 2023

Background: Tarsometatarsal joint is a structural complex which allows for effective force transfer and propulsion during gait. Lisfranc joint injuries sometimes can be missed, or delayed treatment may lead to disability with chronic pain and deformity of tarsometatarsal joint. There is a controversy between primary arthrodesis versus open reduction with internal xation as to which is superior treatment with better outcome for these injuries. To compare primary arthrodesis versus open reduction with internal Aim Materials and Method xation for Lisfranc joint injuries. A comparative observational study was conducted from August 2020- October 2022 at AVMC & H, Pondicherry. 21 patients were included in the study. All were followed up for a minimum of 6months. In our study, According AOFAS s Results core we had excellent to good outcome in 90% patients treated with Primary arthrodesis than open reduction internal xation Conclusion In our study, we conclude that in south Indian population, shows that primary arthrodesis has better functional outcome than Open reduction and internal xation for Lisfranc joint injury. Since the sample size is limited and the duration of study is short, further study is need with larger population.
A PROSPECTIVE CLINICAL STUDY OF SERUM BIOMARKERS WITH TREATMENT OUTCOME OF EPITHELIAL OVARIAN CANCER CASES
Authors: Rudra Rima , Mukherjee Amrita , Jha Tulika , Choudhuri Sharmistha
Published: May 2023

Introduction: Ovarian cancer has worst prognosis and high mortality rate due to delayed onset of symptoms and lack of proper screening test that leads to late diagnosis in the advanced stages. Folate and vitamin B12 are involved in one carbon metabolism as cofactor and also has a role in conversion of homocysteine to methionine. Aberration in these processes may amplify carcinogenesis. Objective: To analyse the role of serum level of CA125, Folate, Vitamin B12 & Homocysteine as diagnostic tool in Epithelial Ovarian Cancer. Methods & Materials: 35 diagnosed cases of epithelial ovarian carcinoma were collected from Outpatient and Inpatient Department of Obstetrics & Gynaecology as per Eastern Cooperative Oncology Group performance status. Serum levels of CA125, Folate, Vitamin B12 and Homocysteine were assayed at the time of diagnosis, 3 months and 6 months post treatment. Comparison between pre and post treatment serum levels of parameters were analysed by Graph Pad Prism version 8.4.3. Results: Mean age of developing ovarian cancer is 51± 9 years. Pre-treatment Serum CA125 levels (mean 1021 ± 800.5 units/ml) & Serum Homocysteine levels (mean 11.23 ± 2.164 ng/ml) were signicantly higher than 3 months & 6 months post-treatment serum levels. Pretreatment Serum Folate levels (mean 3.231 ± 1.506 ng/ml) & Serum Vitamin B12 levels (mean 280.6 ± 140.8 ng/ml) were signicantly lower than 3 months & 6 months post-treatment serum levels. Conclusion: The serum levels of selected parameters were signicantly altered in cases of epithelial ovarian cancer & plays an important role in process of carcinogenesis
A STUDY OF ASSOCIATION OF ABO/RH BLOOD GROUPS WITH TYPE 2 DIABETES MELLITUS AND ITS MICROVASCULAR COMPLICATIONS
Authors: Garg Vivek , Tank Parth , Jain Yatharth , Patel Dhruv , Mevada Jigna , Lirani Faraaz
Published: May 2023

Diabetes mellitus (DM) is a chronic disease with an estimated 537 million people having diabetes worldwide with Type 2 Diabetes Mellitus making up about 90% of the cases. It is the fastest growing non communicable disease in the world. Its pathophysiology is linked to multiple genetic and environmental causes. Long term uncontrolled diabetes can cause many micro and macro vascular complications. Microvascular complications like neuropathy, retinopathy and nephropathy are linked more closely to control of blood sugar levels. ABO blood groups are polymorphic, inherited, antigenic substances found on the surface of red blood cells in addition to other tissues. Specic ABO blood groups are found to have predisposition for some specic diseases such as gastric and duodenal ulcer and some vascular diseases. In this study we aim to study the correlation between the incidence and various microvascular complications of diabetes with specic ABO blood groups.
ACUTE MESENTERIC ISCHEMIA WITH BOWEL GANGRENE:CASE SERIES IN A TERTIARY CARE CENTRE
Authors: Acharya Bidyapati , Ethiraj Suraj , Ranjan Samal Sumit
Published: May 2023

Introduction: Acute Mesenteric ischemia (AMI) is a worrisome clinical condition leading to end stage irreversible bowel necrosis. Inspite of
advances in medical eld, it continues to remain a diagnostic challenge for surgeons leading to delay in diagnosis and high mortality. In this series
we present 8 cases of AMI with bowel gangrene treated surgically with an aim to describe its presentation and various management strategies at our institution. This prospective series of patients operated for acute mesenteri Methodology: c ischemia with bowel gangrene was conducted in a tertiary care hospital in Eastern India from January 2021 to August 2022. All patients presenting to the emergency department with abdominal pain, features of obstruction with or without peritonitis operated with a pre operative diagnosis of acute mesenteric ischemia conrmed radiologically were taken for the study. This series comprised of 8 patients, of which 5 (62.5%) were Results: male and 3 (37.5%) were female. The mean age of patients was 58.5 ± 8.9 years with a range from 45 to 75 years. The most consistent presenting feature was abdominal pain (100%) followed by vomiting (50%) and distension (50%). Four (50%) of patients had a pre-existing cardiac illness. The mean length of hospital stay was 7.6 ± 3.87 days. Post operative complication occurred in 4 patients. The mortality rate in our series was 37.5%. AMI is a life threatening vascular Conclusion: emergency with high mortality and morbidity. Most present in a delayed stage where irreversible bowel ischemia has set in requiring emergency laparotomy. High index of clinical suspicion is required for early diagnosis and prompt effective treatment to prevent disastrous consequences.
ROLE OF DIFFERENT TERRAIN BALANCE TRAINING AND BOSU BALL TRAINING TO IMPROVE BALANCE IN PARKINSON'S PATIENTS: A NARRATIVE REVIEW STUDY.
Authors: Kanwar Simran , Thomas Annie
Published: May 2023

Background: Parkinson's disease (PD) is a long-term neurodegenerative disease of the central nervous system. It largely affects the motor system. The highlighted symptoms are bradykinesia, resting tremors, or rigidity. It occurs after the age of 50 years targeting 1 to 2 people per 1000 at any time. The prevalence rate escalates with age and targets 1% of the population above 60 years. The time-tested etiology says that PD is caused by a loss of nerve cells in the brain causing dopamine levels to drop, and exceed the symptoms. Owing to aging, muscular weakness and postural instability with progressing disease, gait and balance problems are experienced in the patients. The outcome measures used to assess the balance are Berg Balance Scale, Functional Reach Test, and Timed Up and Go Test. Recent past years have seen advances in both the denition of Parkinson's Disease (PD) and the assessment of outcomes after different interventions. Objective: To discover the effectiveness of different terrain gait training and bosu ball training to improve balance in Parkinson's patients. Method: A extensive search on PubMed, Google Scholar, Pedro, and Cochrane library using keywords such as epidemiology of Parkinson's disease, balance training, bosu ball training, different terrain gait training, gait training in Parkinson's patients, and rebound exercises for balance, all were included. Results:Atotal of 297 articles came out in search results out of which few were selected which met the following inclusion criteria: published in English, published from 2010- 2022, study population Parkinson's patients, age 65 to 80 years, male and female, Meta-analysis, Systematic reviews, and randomized control studies. Conclusion: The study concluded that different terrain gait training is effective in enhancing balance in Parkinson's patients and easily administrable outcome measures can be used in all clinical settings for Parkinson's patients
INCIDENTALLY DIAGNOSED TRIORCHIDISM IN AN ELDERLY PATIENT PRESENTING WITH HYDROCOELE
Authors: Sanjay Deshpande Rohit , Devana Sudheer , Kumar Mete Uttam
Published: May 2023

A supernumerary gonad is a rare nding and can be encountered incidentally in a variety of clinical scenarios like inguinal hernioplasty, scrotal exploration for testicular torsion, or simply on palpation of the external genitalia as part of routine examination. Till date, approximately 190 cases have been reported regarding this rare anomaly. Herein we report one such case who presented to us with left hydrocele and incidentally detected to have a palpable nubbin of tissue at the base of the scrotum, which later turned out to be a supernumerary testis. The location of the supernumerary testis in our case was caudal to the orthotopic testis, and this particular location, to the best of our knowledge, has not been reported in medical literature so far.
HISTOPATHOLOGICAL SPECTRUM AND DESCRIPTIVE EPIDEMIOLOGY OF CENTRAL NERVOUS SYSTEM TUMORS DIAGNOSED AT A TERTIARY CARE CENTER
Authors: Vishali V M Shobini , B Neelayadakshi. , Sridevi Sridevi
Published: May 2023

Central Nervous System (CNS) tumours are rare and account for 1-2% of all malignancies.[1,2] It can present as a primary tumour or a metastatic
neoplasm. Primary tumours show a bimodal peak. Objective: To provide an overview of the descriptive epidemiology and histological spectrum of
CNS tumours in a tertiary care centre. Methods: This is a retrospective study, which includes all histologically diagnosed cases of CNS tumours
from 2017-2020, retrieved from archives of department of Pathology in Saveetha medical college. The frequency and distribution of CNS tumours
based on age, gender, histology and grades according to WHO Classication of CNS Tumours 2016 were analysed. Results: In our study, the
incidence of CNS tumours was more common in the age group of 41-50 years and had a female preponderance. The most common tumour observed
was meningioma followed by astrocytoma. WHO Grade I tumour was found to be most common among the primary CNS tumours. Histological
examination remains the gold standard for diagnosis of CNS tumours. This study shows the incidence and distribution of CNS tumours. It helps
identifying the burden of the disease in the community and can be further used for comparative studies in the future.
PROSPECTIVE AND RETROSPECTIVE STUDYEVALUATING POST-OPERATIVE NEUROLOGICAL INFECTION FOLLOWING NEUROSURGERY IN TERTIARY CARE HOSPITAL
Authors: Matariya Mayurkumar , Patel Sudhendu , Shah Vidhi , Patel Parth , Shah Hard , Patel Jimmy
Published: May 2023

Introduction: The central nervous system (CNS) is known as a delicate and vulnerable system enjoying protection by many layers of covering, providing an anatomical barrier against microbial invasion. Aims: To evaluate the incidence of post-operative neurological infections and to describe the microbiological prole and risk factors associated with infections in postoperative neurosurgery patient. Materials And Methods: The present study was a Cross-sectional study. This Study was conducted from was 12 months at Department of Family Medicine, Sterling Hospital, Ahmedabad. 76 participants were included for study. Result: 86.8% underwent elective surgery and rest of the patients underwent emergency surgery. This was not signicantly associated with post-operative infections (p value = 0.39). Based on site of surgery, 13.2% underwent spine surgery, 73.7% had supratentorial surgery and 13.2% had infratentorial surgery. Site of surgery was not signicantly associated with post-operative infections (p value = 0.11). Conclusion:The results of our study can be considered to identify post-neruosurgical patients who are at high risk of developing post-operative infections and improve hospital management protocols
Aspects of the Biology and Morphometrics of the Life Stages of Epilachna chrysomelina Fabricius (Coleoptera: Coccinellidae)
Authors: Akinkunmi O. Y. , Pitan O. R.
Published: May 2023

Aspects of the biology and morphometrics of Epilachna chrysomelina was investigated on cucumber at National Horticultural Research Institute, Ibadan under ambient conditions: temperature 25o ± 2o C and relative humidity 75 – 90%. The mean developmental period from egg to adult emergence was 29.00 ± 4.35 days. The beetle development was in four distinct stages; an egg, four larval instars, pupa and an adult stage. The mean eggs length and breadth were 1.33 ± 0.01 mm and 0.78 ± 0.01 mm. The first, second, third and fourth larvae measured (2.34 ± 0.50 mm and 1.26 ± 0.03 mm) (2.55 ± 0.90 mm and 1.48 ± 0.04 mm), (6.97 ± 0.70 mm and 2.97 ± 0.03 mm) and (8.15 ± 0.40 mm and 3.77 ± 0.07 mm) in length and breadth respectively. Mean pupal length and breadth were 6.33 ± 1.10 mm and 4.25 ± 0.25 mm with mean pupation period 5.20 ± 2.40days. The females were larger than the males. Pre-oviposition period was 7.20 ± 1.20 days with oviposition of 24.5 ± 4.5 days during which the female laid 222.20 ± 6.1 eggs. Epilachna chrysomelina is a key pest of cucumber resulting into huge loss in yield. The study provides useful information in identification of different biotypes of the beetle and its management.
Efficacy of extracts of Tithonia diversifolia (Hemsl) A. Gray as protectant against maize weevil (Sitophilus zeamais [Motsch.]) and cowpea weevil, Callosobruchus maculatus F. on stored grains
Authors: Ajao Adeyemi Mufutau , Ojo James Adebayo , Adeoye Abubakar Abdullahi , Ibraheem Mufliah Ololade , Babarinde Tosin Michael
Published: May 2023

This study sought to determine the efficacy of Tithonia diversifolia (African Sunflower) as pesticides against maize weevil Sitophilus zeamais and bean beetle Callosobruchus maculatus. The research was conducted to ascertain the toxicity potency of T. diversifolia on insects’ mortality, repellency, adult emergence, seed damage and weight loss for the treatment of stored products and determine their minimum effective dosage for application. T. diversifolia collected from the premises of Kwara State University, Malete were air-dried, grinded and dissolved in 50 g to 600 ml of four different extracts (Ethanol, Methanol, n-Hexane and aqueous). S. zeamais and C. maculatus were reared in the laboratory at 60-75% relative humidity and 25-35 oC. After the whole extraction, ten unsexed S. zeamais and C. maculatus were infested in 10 g of grains and replicated three times in each application of extracts with different treatment levels. The mortality and other parameters were counted post-treatment. The mean results of the parameters studied were significantly different at (P< 0.05). N-hexane extracts was most toxic to S. zeamais while Methanol extract was most toxic to C. maculatus. Thus, all the extracts were potent, and they reduced insects’ oviposition, increased mortality, improved repellence, inhibited reproduction, grain damage and weight loss in storage compared to the untreated control. Subjected to the qualitative phytochemical screening, active compounds discovered to be present in T. diversifolia include tannin, flavonoid, saponin, phenol, terpenoid, glucosides and alkaloid. The study proffers the use of T. diversifolia, a readily available, safe and ecofriendly botanical for farmers as short and long-term storage of the stored products.
On Resource Allocation of STAR-RIS Assisted Full-Duplex Systems
Authors: Kavianinia Mohammad Reza , Emadi Mohammad Javad , Sedaghat Mohammad Ali
Published: May 2023

A STAR-RIS assisted two-user full-duplex communication system is studied in which the multiantenna base station (BS) and single-antenna users are subject to maximum transmission power constraints. Firstly, for three well known protocols of STAR-RIS, weighted sum rate (WSR) is derived as the main performance metric. Next, the corresponding resource allocation problems are reformulated and converted into some equivalent weighted minimum mean-square-error forms and then transformed into several convex sub-problems. It is shown that this conversion allows us to solve the problems iteratively and efficiently. Although the original WSR optimization is non convex, the proposed efficient iterative alternating procedure is shown to achieve an acceptable sub-optimal performance. For the considered setup, the STAR-RIS’s tunable parameters are optimized via the successive convex approximation technique. Finally, the performance of the proposed schemes is compared against some baselines and shown to be superior to the conventional RIS.

 
Influence of various ML-Based Binary Classifiers on the Performance on handwritten digit recognition
Authors: Farhan Shahid Muhammad
Published: May 2023

This paper aims to produce comparison among four competing Machine Learning classifiers including a boosting algorithm when fitted on MNIST dataset to predict 0-Image. Accuracy (ACC) of Support Vector Machine (SVM), Stochastic Gradient Descent (SGD), AdaBoost and Random Forest models are evaluated through 3-fold and 10-fold Cross Validation. Further, performance is measured through precision (PREC), F1-score (F1), recall (REC), PR Curve and ROC.  

 
Designing Hybrid VLC-RF Networks with Random Receiver Orientation and Energy Harvesting
Authors: Fahim Raouf Amir Hossein , Anjinappa Chethan Kumar , Guvenc Ismail
Published: May 2023

The growing demand for wireless communication technologies has led to introducing hybrid visible light communication (VLC) and radio frequency (RF) system. In this paper, we present the design and optimization of a hybrid VLC-RF system with energy harvesting for indoor environments. We consider a two-hop downlink transmission, where a relay first harvests energy via a VLC link along with the received data, and then re-transmits the decoded information via an RF link to the end user. The objective of this study is to jointly optimize the direct current (DC) bias and time allocation of the energy harvesting (backhaul) link to maximize the end-to-end information rate in the presence of random receiver orientation. We use computer simulations to characterize the effects of various design parameters on the achievable data rate with and without joint optimization and discuss associated trade-offs. Our findings offer valuable insights for researchers and practitioners looking to optimize wireless communication in hybrid VLC-RF systems.
An Efficient Ray-Based Modeling Approach for Scattering from Reconfigurable Intelligent Surfaces
Authors: Vitucci Enrico Maria , Albani Matteo , Kodra Silvi , Barbiroli Marina , Degli-Esposti Vittorio
Published: May 2023

Reconfigurable Intelligent Surfaces (RISs), which can be implemented using metasurface technology or reflect/transmit antenna array technology, have garnered significant attention in research studies focused on both their technological aspects and potential applications. While various modeling approaches have been proposed - ranging from electromagnetic simulations and analytical integral formulations to simplified approaches based on scattering matrix theory - there remains a great need for efficient and electromagnetically-consistent macroscopic models that can accurately simulate scattering from RISs, particularly for realistic simulations of RIS-based wireless networks. Building on previous work based on the characterization of the RIS through a surface impedance (or ”spatial modulation”) function and a few parameters, in the present paper we propose a fully ray-based approach for the computation of the re-radiated field that can be easily embedded in efficient, forward ray tracing (also known as ”ray launching”) models. We validate the proposed model by comparison to well established methods available in the literature. Results show that, although the considered method is based on a completely different formulation and is much more efficient than integral formulation methods, results are almost indistinguishable in some benchmark cases.
Aszfalt útpályaszerkezet alternatív méretezésének bemutatása és összehasonlítása az útügyi műszaki előírás szerintivel
Authors: Juhász Gábor
Published: May 2023

Jelen cikk alapját a 2020-ban írt diplomamunkám adta, amelyben a jelenlegi Útügyi Műszaki Előírás által előírt aszfalt pályaszerkezet méretezést hasonlítom össze egy alternatív, analitikus elven felépített aszfalt pályaszerkezet méretezéssel. Egy adott tervezési környezetre vetítve alkalmaztam egyik, majd másik eljárást, majd az eredményeket összevetem. A WESLEA for Windows nevű szoftver segítségével a konkrét példában alkalmazott pályaszerkezet teher hatására bekövetkező feszültségeit és alakváltozásait határozom meg. A WESLEA egy mechanikus burkolatelemző program, amely kiszámítja a burkolat reakcióját az alkalmazott gumiabroncs terhelésekre. A burkolat reakcióját a feszültségek és a hozzá tartozó elmozdulásokkal határozza meg. Ezekből a reakciókból meg tudjuk becsülni a pályaszerkezet élettartamát.
Inaugurazione del 72° Anno accademico dell'Accademia Italiana di Scienze Forestali
Authors: Ciancio Orazio
Published: May 2023

Il 21 aprile u.s., nell’Aula Magna dell’Università, cortesemente concessa dalla Magnifica Rettrice dell’Universitàdegli Studi di Firenze, alla presenza di numerose Autorità e di un folto pubblico, si è tenuta la Cerimoniadi inaugurazione del 72° anno di attività dell’Accademia Italiana di Scienze Forestali. Dopo i salutidel Prorettore dell’Università di Firenze, Enrico Marone, del Consigliere per il Ministero dell’Agricoltura,della Sovranità Alimentare e delle Foreste, Dario Bond, del Generale Nazario Palmieri, Vice Comandantedel Comando Unità Forestali Ambientali Agroalimentari dei Carabinieri, il Presidente Orazio Ciancioha illustrato l’attività dell’Accademia e ha concluso con una breve relazione su “Bosco e Silvosistemica”. Laprolusione, dal titolo “Clima e abete rosso: una difficile convivenza” è stata tenuta dall’Accademico AndreaBattisti, Professore Ordinario di Entomologia generale e applicata dell’Università degli Studi di Padova. Altermine della Cerimonia sono stati consegnati i diplomi ai nuovi Accademici e i premi indetti dall’UNIF(Unione Nazionale per l’Innovazione Scientifica e Forestale) in collaborazione con l’Accademia, per lemigliori tesi di dottorato nel settore forestale.
What went right and what went wrong in my cellar door visit? A worldwide analysis of TripAdvisor’s reviews of Wineries & Vineyards
Authors: Barbierato Elena , Bernetti Iacopo , Capecchi Irene
Published: May 2023

The purpose of this work is to study the issues of service quality and service failure during visits to cellar doors in the five regions where wine tourism is most developed: Hunter Valley (AU), Mendoza (AR), Napa Valley (the USA), Stellenbosch (ZA), and Tuscany (IT). We propose a methodology based on a combination of sentiment analysis and natural language processing applied to 89,672 TripAdvisor reviews. The results indicate that the issues most linked to service quality and service failure are as follows (in the order of importance): the quality of the main wine product, the experience in the tasting room, the organized tours, the empathy of the staff, the reliability of the staff, and the setting of the cellar and landscape. These themes are common to all five wine tourism regions, but each region treats them differently. The results obtained confirm and expand the results of previous studies and may prove useful both to professionals (wineries, tour operators, and travel agents) and for the design of a product that meets the needs of wine tourists. The main limitation of the study concerns the application of the methodology to the five most developed wine regions in the world; therefore, the results obtained may not be immediately applicable to the wine regions that are starting to develop wine tourism.
Viniculture and Tourism in the New World of Wine: a literature review from the American continent
Authors: García-Rodea Luis Felipe , Thomé-Ortiz Humberto , Espinoza-Ortega Angélica , De Alcântara Bittencourt-César Pedro
Published: May 2023

In the so-called New World of Wine, the wine industry, particularly in the American continent, has increased its presence in various socioeconomic areas through strategies adapted to market conditions. This literature review aims to identify research on viticulture and wine tourism in the New World of Wine and categorize them to indicate new lines of research and knowledge gaps. Given that the consumption and production of wine in the American continent were generated in European migrations and through the cultural mobility of food consumer goods, wine production systems have been consolidated in some emerging territories. However, the scientific production in this regard shows essential areas of opportunity.
Efek kecepatan udara dan penambahan serbuk kayu terhadap kadar kelembapan kotoran sapi yang dikeringkan menggunakan mesin pengering tipe drum dryer
Authors: Harmiansyah  , Kardiansyah  , Afisna Lathifa Putri , Riayatsyah Teuku Meurah Indra , Efendi Rustam
Published: May 2023

Indonesia merupakan negara beriklim tropis yang mayoritas penduduknya adalah petani dan peternak. Salah satu jenis hewan ternak yang dikembangbiakkan adalah sapi dan dampak negatif yang dihasilkan berupa polusi udara diakibatkan oleh kotoran sapi. Upaya yang sangat memungkin untuk menghilangkan bau yang berasal dari kotoran sapi adalah mengeringkan dengan menggunakan mesin pengering (drum dryer). Tujuan kajian ini adalah untuk mengetahui pengaruh kecepatan udara dan pemberian serbuk terhadap kadar kelembapan dan laju pengupan air pada proses pengeringan kotoran sapi dengan mesin pengering (drum dryer). Kajian ini menggunakan metode eksperimental yakni dengan mengukur perubahan suhu setiap 10 menit selama 30 menit. Mengukur dan membandingkan kadar kelembapan sebelum dan sesudah dipanaskan dengan variasi kecepatan blower (1,3 m/s, 1,7 m/s, 1,9 m/s, dan 2,4 m/s). Hasil kajian menunjukkan adanya perbedaan nilai laju penguapan air di setiap variasi kecepatan udara. Laju penguapan air tertinggi adalah 0,000736 kg/s pada kecepatan udara 2,4 m/s, sedangkan nilai laju penguapan air terendah adalah 0,000142 kg/s pada kecepatan udara 1,3 m/s. Hasil perbandingan kadar kelembapan dari proses pengeringan dengan dan tanpa serbuk kayu menunjukkan nilai yang tidak jauh berbeda. Pada kecepatan udara 2,4 m/s, nilai kadar kelembapan akhir yang diperoleh sebesar 70%, hasil ini 5% lebih baik jika dibandingkan dengan proses pengeringan tanpa serbuk (nilai kelembapan akhir sebesar 75%). Namun pada kecepatan 1,3m/s, nilai kadar kelembapan akhir yang didapatkan sebesar 90%, di mana hasil ini lebih besar jika dibandingkan dengan proses pengeringan tanpa serbuk (nilai kadar kelembapan akhir 80%).
Developing Islamic Tasks-Based Speaking English Materials for Islamic Elementary School Students: A Case Study at Elementary Schools in West Lombok, Indonesia
Authors: Widhi Bidari Andaru , Jupri Jupri , Jumadil Jumadil
Published: May 2023

The present study aims to develop English Speaking Materials specifically designed for Islamic Elementary School students that adequately meet their language learning needs and preferences. In this regard, the study employs a Research and Development (R&D) ADDIE model, comprising five stages: analysis, design, development, implementation, and evaluation. The researcher not only acted as a materials developer but also as a teacher, since the data collection was conducted in the Islamic Elementary School. The participants in this study included 35 Islamic students and 2 Islamic teachers, and the data collection techniques utilized were questionnaires and structured interviews. The developed materials are grounded on a Project-based learning approach. The study investigates the need analysis for English Speaking Materials for Islamic Elementary School, describes the speaking materials for Islamic Elementary School, and evaluates their quality. The findings of the needs analysis reveal that elementary Islamic students aspire to enhance their fluency in English speaking and acquire more vocabulary to effectively communicate in formal and informal discussions. Accordingly, the developed materials consist of five units, equipped with tasks that incorporate inputs in the form of texts and videos, designed to facilitate the learning process. Moreover, the materials encourage creativity in exploring student knowledge. The study concludes by recommending that future researchers interested in this area utilize this study as an object of research and build upon its limitations. It is hoped that the outcomes of this research are of value to university students, who conduct research in the area of English Language Teaching.
Media Pembelajaran dan Gaya Belajar Mempengaruhi Hasil Belajar Siswa Sekolah Menengah Atas
Authors: Sedik Aloysia Diana
Published: May 2023

Penelitian ini bertujuan untuk 1) mengetahui perbedaan pengaruh media e-learning dan media cetak terhadap hasil belajar siswa kelas X. 2) mengetahui perbedaan pengaruh gaya belajar visual dan auditori terhadap hasil belajar siswa kelas X. 3) mengetahui adanya pengaruh interaksi antara media pembelajaran e-learning vs cetak dan gaya belajar (visual dan auditori) terhadap hasil belajar siswa kelas X. Penelitian di lakukan pada dua sekolah yaitu di SMA Katolik Stella Maris Surabaya dan SMA Katolik Mater Dei Probolinggo dengan sampel 72 siswa. Adapun penelitian ini dilakukan dengan metode eksperimen atau kuantitatif dengan instrumen penelitian tes dan angket. Dengan metode analisis data meliputi uji normalitas, homogenitas, dan uji hipotesis. Dan untuk menganalisisnya menggunakan aplikasi penghitungan data statistik SPSS versi 24. Diperoleh hasil perhitungan bahwa media e-learning dalam penelitian ini terbukti berfungsi untuk meningkatkan hasil belajar siswa SMA Katolik Stella Maris Surabaya dan SMA Katolik Mater Dei Probolinggo berdasarkan nilai rata-rata yang lebih tinggi dibanding media cetak. Siswa dengan gaya belajar auiditori memberi kesan dalam memperoleh hasil belajar yang lebih baik dibandingkan siswa dengan gaya belajar visual. Oleh karena itu pada penerapan dalam proses pembelajaran diharapakan guru tetap memperhatikan karakteristik siswa dalam menangkap materi yang diberi, sehingga baik siswa dengan gaya belajar siswa auditori, visual serta kinestetik memperoleh hasil yang sama-sama memuaskan.
Comparison of Two Surgical Methods for the Management of Mid–Distal Humerus Fractures Not Involving the Joint (plate–screw osteosynthesis with elastic nail-supported external fixator application)
Authors: ULUÖZ Mesut , VARMIŞ Hasan Orkun
Published: May 2023

Aim: The open reduction-plate method is frequently used in the surgical treatment of mid-distal humeral fractures. However, the radial nerve is always a major problem. In our study, we tried to present a surgical procedure that would eliminate this problem. For this reason, patients who were operated on for humeral mid-distal fractures in our hospital were investigated.

Methods: We compared the elastic nail-supported external fixator after closed reduction with plate-screw osteosynthesis after open reduction. Group 1 (16) was divided into elastic nail supported external fixator, Group 2 (39) plate screw osteosynthesis. Groups were analyzed retrospectively.

Results: While there was no delayed union and no neurological complications in group 1, three patients in group 2 had pseudoarthrosis and two patients had iatrogenic radial nerve deficit.

Conclusion: There was no significant difference in union times and complication rates. However, in the method we defined; operative time, length of hospital stay were statistically significantly lower. We have also demonstrated further advantages of the technique we have described. These; protection of fracture hematoma, no incision scar, no plaster fixation, early rehabilitation, ease of removal of implants. Its disadvantage is that the fixator stays on the patient for about three months. We think that the method will become widespread when the advantages and disadvantages of this technique are evaluated by surgeons. A monolateral external fixator supported by an elastic nail can be used safely, successfully, and easily for the treatment of mid–distal humerus fractures that do not involve the joint.
Coronary Artery Bypass Grafting Surgery for Patients with Systemic Autoimmune Diseases: Institutional Experience
Authors: KAYA İbrahim Çağrı , BULUT Halil İbrahim , ÖZBAYBURT Merih , BALKANAY Ozan Onur
Published: May 2023

Introduction:

Systemic autoimmune diseases are risk factors for cardiovascular diseases and have also been identified as a factor that worsens perioperative outcomes in various surgical specialities. This study investigated the effects of systemic autoimmune diseases on coronary surgery outcomes.

Methods:

One hundred fifty-one patients were included in this study. hundred-forty-four patients without autoimmune disease were in the second group and seven patients with systemic autoimmune disease who underwent isolated coronary surgery were in the second group. Hospital Electronic recording systems were used for data collection. The follow-up period is 12 months. A statistically significant P value was taken as 0.05.

Results:

The two groups were comparable preoperatively, only the prevalence of hypertension and diabetes was significantly higher in the second group. There was no significant difference between the two groups in terms of intraoperative variables. Perioperative complications (excluding stroke), 30-day mortality and post-operative cardiopulmonary resuscitation rate were significantly higher in the second group, however there was no difference between the two groups in terms of 12-month survival.

Conclusion:

Despite systemic autoimmune diseases being found a factor that increases complications in terms of coronary surgery, coronary surgery is promising with its success in 12-month survival and repeated revascularization rate in these patients.
Contribuições das imagens na avaliação dos licenciandos em Química
Authors: Afonso Andréia Francisco , Cabral Wallace Alves
Published: May 2023

A utilização do termo avaliação, embora este seja bastante difundido no cenário educacional, ainda é pouco refletida. Muitas vezes, a avaliação é tomada como sinônimo para provas, testes, seminários e outros, que pouco (ou nada) contribuem para a formação inicial dos licenciandos. Entendemos que essa discussão vai além de uma questão terminológica, uma vez que envolve um conjunto de filiações e pressupostos teóricos que determinam a maneira como se trabalha; epistemologicamente, a visão de mundo, de verdade e de ciência de quem a elabora; e a seleção de instrumentos que permitem a identificação do desenvolvimento de habilidades por parte dos avaliados. Dessa forma, a pesquisa apresentada analisou as contribuições, para licenciandos em Química, das imagens inseridas em uma avaliação em relação às diferentes formas de se expressar e apresentar os conhecimentos construídos. Concluímos que as imagens possibilitaram aos avaliados o desenvolvimento da argumentação e a mobilização dos saberes construídos durante as aulas que antecederam a prova. Além disso, eles puderam desenvolver outras habilidades e saberes desejáveis para a atuação docente.
Reflexões sobre a observação da prática docente nos estágios supervisionados em um curso de Licenciatura em Química
Authors: Stanzani Enio De Lorena , Borges Larissa Caroline Da Silva
Published: May 2023

O presente artigo propõe analisar uma etapa específica da formação inicial, os estágios de observação, buscando caracterizar os elementos de ensino, aprendizagem e avaliação apresentados pelos licenciandos ao longo do desenvolvimento das atividades propostas e evidenciar a compreensão e as dificuldades dos futuros professores ao buscarem resolver os problemas propostos. Com essa finalidade, foram analisados os relatórios de estágio de observação de 11 licenciandos em Química. Como resultado, evidenciamos que, ao articular os elementos de observação, focados nas interações entre professores e alunos e na maneira como os professores organizam os processos de ensino e aprendizagem e a avaliação, os licenciandos passam a refletir sobre aspectos importantes da prática docente, evidenciando as problemáticas e potencialidades relacionadas aos modelos de ensino adotados pelos professores e, nesse contexto, reforçamos a importância dos estágios na formação, desde que sejam pensados como espaços coletivos de reflexão sobre os desafios da docência e sobre o papel social da escola e dos professores.
Percepções de licenciandos em Ciências Biológicas sobre Estágio Supervisionado: possibilidades e opiniões
Authors: Dos Santos Reginaldo
Published: May 2023

Este artigo discorre sobre uma pesquisa de abordagem qualitativa desenvolvida no ano de 2022, com o objetivo de conhecer e analisar percepções que um grupo de licenciandos em Ciências Biológicas de uma universidade pública paraense apresenta sobre o componente curricular Estágio Supervisionado Obrigatório e, também, suas opiniões sobre uma proposta de arranjo metodológico para esse Estágio. Como instrumento e técnica de coleta de dados foi utilizado roteiro semiestruturado de entrevistas, gravadas em áudio e realizadas junto a licenciandos que se encontravam no início do Estágio. Os resultados demonstram que os acadêmicos apresentam tendência em perceber o Estágio Supervisionado Obrigatório como uma atividade de fundamental importância para sua formação profissional, bem como mostraram-se simpáticos à ideia ser incorporada no Estágio a observação de aulas de várias disciplinas, tendo o propósito de alargar a visão sobre diferentes métodos e técnicas de ensino escolar.
A utilização de jogos lúdicos durante o estágio curricular em ciências: contribuições para o processo de aprendizagem
Authors: De Mattos Rodrigues Bruna , Paiva Lima Luís Fernando , Bochi do Amaral Janine
Published: May 2023

Na atualidade, muito se fala sobre o papel do lúdico durante o processo de ensino-aprendizagem, no entanto, ainda se encontram muitas incoerências quanto à aplicação das metodologias lúdicas. Tais atividades correspondem a um grupo de situações, dinâmicas e jogos importantes para o desenvolvimento cognitivo, social e cultural dos indivíduos, e que são vivenciadas durante toda a vida. Quando envelhecemos ainda gostamos de jogos de cartas, tabuleiro, fliperama, vídeo game e não identificamos a ludicidade presente nessas atividades. Elas, além de possibilitarem o prazer momentâneo, promovem a construção de diversos conhecimentos e, tratando-se do ensino de ciências, o lúdico pode contribuir para a compreensão de diversos conteúdos de difícil compreensão. Portanto, o trabalho tem como objetivo destacar a importância das atividades lúdicas para a construção de conhecimentos e para o processo de ensino-aprendizagem de Ciências, destacando autores que contribuíram para a consolidação deste tipo de metodologia. Além disso, destaca alguns jogos lúdicos desenvolvidos pela autora, enquanto graduanda do Curso de Licenciatura em Ciências Biológicas do Instituto Federal Farroupilha (IFFar), os quais foram utilizados durante o Estágio Curricular Supervisionado com alunos do 6º ano do Ensino Fundamental, a fim de facilitar a aprendizagem de Ciências.