bluuebunny/crossref_metadata_2025 huggingface dataset:
Results of sphenopalatine ganglion pulsed radio- frequency treatment in patients suffering from episodic cluster headache
Authors: Akkemik Ümit , Aliyev Dostali , ÖZGENCİL Güngör Enver
Published: March 2023

Background & Objective: The aim of this study was to investigate the short- to medium-term effects of pulsed radiofrequency (PRF) of the sphenopalatine ganglion on episodic cluster headache.
Methods: This is a retrospective observational study, 26 patients who underwent PRF of the sphenopalatine ganglion were retrospectively evaluated. The Visual Analogue Scale (VAS) score, number of headache attacks per week, autonomic symptoms and medication use were recorded at 1, 3 and 6 months after the procedure.
Results: The mean VAS scores were significantly lower at the 1-, 3-, and 6-month evaluations compared with pre-procedure values (P < 0.001). At the 6th month after the procedure, the proportion of subjects who completely stopped using medications was 26.9%, and the proportion with a decrease in autonomic symptoms was 61.5%. No complications were encountered as a result of the procedure.
Conclusion: The application of PRF to the sphenopalatine ganglion is an effective and safe treatment option for episodic cluster headache in the short to medium term.
The relationship between rehabilitation outcomes and extracellular thiol-disulphide and intracellular oxidized-reduced glutathione homeostasis in patients with subacute stroke
Authors: Alisik Tugba , Alisik Murat , Cogalgil Sirzat
Published: March 2023

Background & Objective: To evaluate the relationship between the clinical outcome of subacute stroke patients and extracellular thiol-disulphide (SH-SS) and intracellular oxidized-reduced glutathione (GSSG-GSH) homeostasis and the effect of the rehabilitation program on these homeostasis.
Methods: In this prospective observational study, outcome assessments (National Institutes of Health Stroke Scale Scores (NIHSS), modified Rankin Scale (mRS), and Barthel Daily Living Activities Index (BI)) and SH-SS and GSSG-GSH homeostasis parameters were investigated from 42 patients with subacute stroke before and after 4-week rehabilitation treatment protocol. Also, SH-SS and GSSG-GSH homeostasis parameters were measured from 35 healthy volunteers.
Results: SS/SH and GSSG/GSH ratios were significantly higher in the patient group at baseline and post-rehabilitation than the control group (p<0.05). SS/SH ratio, GSSG/GSH ratio, NIHSS and mRS values significantly decreased with the rehabilitation (p<0.05). The baseline SS/SH and GSSG/GSH ratios were correlated with baseline and post-rehabilitation NIHSS, mRS and BI scores (p<0.05).
Conclusions: The better outcomes of patients with higher baseline antioxidant thiol groups suggest that active thiol groups may play a role in achieving better outcomes in subacute stroke. In addition, rehabilitation treatment increased clinical scores and additionally shifted intracellular and extracellular thiol groups to the antioxidant side.
The Impact of Perception of Organizational Politics on Knowledge Sharing Behavior of Employees: The Mediating Effect of Psychological Capital and The Moderating Effect of Political Skill
Authors: Jiang Junpeng
Published: March 2023

Knowledge sharing behavior plays an important role in promoting enterprise innovation, and perception of organizational politics is a potential factor affecting the behavior of employees. Based on the conservation of resources theory, this paper logically deduces the theoretical model, showing that there is a significant negative correlation between perception of organizational politics and knowledge sharing behavior, psychological capital mediates the relationship between perception of organizational politics and knowledge sharing behavior, and political skill not only negatively moderates the relationship between perception of organizational politics and psychological capita, but also negatively moderates the relationship between perception of organizational politics mediated by psychological capital and knowledge sharing behavior. This paper expands the perspective of research on the antecedents of knowledge sharing behavior and makes up for some gaps in the field of localization of perception of organizational politics.
Application of modified porous materials and pollution treatment in water
Authors: Li Yan , Wang Na , Chen Weiwei
Published: March 2023

With the continuous development of social economy, water pollution has become one of the key objects of ecological environment governance. It is one of the effective methods to remove heavy metals, nitrogen, phosphorus, antibiotics and other organic pollutants from water by using carbon-based poly porous materials. The physical and chemical properties of porous materials can be improved effectively and the removal effect of target pollutants can be enhanced. The removal of heavy metals, nitrogen, phosphorus and organic matter from water by modified porous materials and its possible mechanism were reviewed. The future research and application of modified porous materials in the field of water pollution control were prospected, which could provide useful reference for related research work and engineering application.
Core Muscle Injury Producing Groin Pain in the Athlete: Diagnosis and Treatment
Authors: Mullen Scott , Hadley Morgan , Vopat Bryan , Wolf Megan
Published: March 2023

Groin pain is a common cause of pain in the athlete and may be the result of a variety of causes. Musculoskeletal groin injuries are often associated with muscle strain, particularly the adductor and abdominal muscles, termed “core muscle injury” (CMI). Since the early 1960s, there have been a growing number of articles intending to identify, define, prevent, and treat this condition; to date, however, the lack of a universal definition and treatment approach has complicated the narrative around CMI. This article intends to review the recent literature surrounding CMI, identifying common defining characteristics, as well as delineating treatment protocols that benefit the injured patient populations. Emphasis is placed on the clinical outcomes of different treatment methodologies and failure rates.
Potential of Tabarru’ Fund’s Coverage for Pandemics within Framework of Takaful: Does it Necessitate Ijtihad?
Authors: MUSTAFA Aısyah , AB RAHMAN Asmak
Published: March 2023

Abstract: Global economic and social development has been severely inhibited by the COVID-19 outbreak. The long-term closure of economic sectors has resulted in numerous losses and presents a great challenge for many industries in recovering their losses. Pandemics are not generally covered by insurance and takaful companies because the outbreak of a disease on a global level is a rare event that requires a substantial amount of capital to cover it. Still, many insurances and takaful operators voluntarily agreed to waive this condition and circumvent relevant rules to provide coverage for COVID-19 treatment during a specific period of time. The takaful industry has been challenged in providing hospitalization benefits to COVID-19 patients where a pandemic clause is not included in the takaful contract. This conceptual paper focuses on when the contracting parties require ijtihad from shariah scholars to determine the need for tabarru’ funds when a pandemic has not been stated in the contract. By using qualitative approach, this study finds that takaful contracts require amendment of their clauses, or that other fundings need to be established for matters not specified in contracts, such as epidemics and pandemics.
Hanefi Mezhebine Göre Ribevî Mallarda Ebediyen Veznilik ve Keylilik Meselesi
Authors: ÇİLİNGİR Hamdi
Published: March 2023

Hanefi mezhebinde karza konu olan mallar misli ve tüketilebilen mallardır. Misli mallar da vezni ve keyli mallar ile birimleri birbirine yakın büyüklükte olan mallar (adediyât-ı mütekâribe) olarak karşımıza çıkmaktadır. Hanefi mezhebinin genel yaklaşımına göre naslarda vezniliği ve keyliliği belirtilmiş mallar ebediyen bu ölçü birimlerine tabidir. Buna göre riba hadisinde geçen altın ve gümüşün ebediyen vezni; buğday, arpa, hurma ve tuzun da ebediyen keyli olduğu hususunda ittifak vardır ve mezhep içinde kabul gören görüş budur. Ancak Ebu Yusuf’tan zayıf bir rivayet de olsa bu konuda farklı bir görüş aktarılmıştır. Bu görüşe göre riba hadisinde geçen altı maddenin ölçü birimleri zamanla örfe göre değişebilmektedir. Ebu Yusuf’tan aktarılan bu zayıf görüş, tarihsel süreç içerisinde zaman zaman kendisine başvurulan ve çıkış yolu olarak görülen bir görüş haline gelmiştir. Bu makale Ebu Yusuf’un bu görüşünün bir nevi izini sürmeye çalışmaktadır.
A sociocultural perspective understanding the role of L1 in the learning of L2 through TBLT and CLIL pedagogical approaches
Authors: Li Junlong
Published: March 2023

Over the past few decades, there have been an increasing number of empirical studies exploring the use of the first language (L1) in pedagogical approaches (e.g., Lee, 2018; Lo, 2015; Turnbull, 2001). However, to date relatively less research has undressed the role of the L1 from a sociocultural perspective to inform educational practitioners of theory-supported teaching practices. With a focus on two specific pedagogical approaches, namely, task-based language teaching (TBLT) and content and language integrated learning (CLIL), this paper reviews two recent studies whose findings pertaining to the role of L1 in second language (L2) learning and teaching are discussed and re-interpreted through the lens of Vygotsky’s sociocultural theory of mind (1978, 1986). The discussion uncovers the multifaceted role of L1 as a cognitive, affective, and interactional mediator, which I argue could optimise the L2 learning process within both the TBLT and CLIL classroom discourse. Such a reconceptualisation of the mediating role of the L1 may shed light on the benefits of using L1 in TBLT and CLIL pedagogies and help language educators make research-informed decisions about their language use choices in the L2 classroom.
CORRELATION OF CT STAGING AND BIOCHEMICAL PARAMETERS IN ASSESSING DISEASE SEVERITY AND MORTALITY OF COVID -19 PATIENTS
Authors: Radhakrishnan Kalpana , Adaikkalam Thangalakshmi , velayutham Dr , rajendran Dr
Published: March 2023

Abstract:
Background
CT chest has become the front-line investigation even for a Real-time polymerase chain reaction (RT-PCR) negative patient due to low viral load. Many grading systems were formulated to assess the severity of lung involvement and combined with inflammatory markers like ferritin (Fr) and C reactive protein (CRP) to provide a guide for diagnosing and managing COVID patients.
Methods
After being tested with RT-PCR, Severe acute respiratory syndrome coronavirus -2(SARS-CoV-2) patients who were referred for CT were included in our study. A non-contrast CT scan of the chest was obtained with 16 slice -Toshiba with 1mm collimation. Findings documented included the presence and extent of ground glass opacities; consolidation whether round, linear, patchy, lobar, or diffuse; septal thickening; and other features of pre-existing diseases like cavity, bronchiectasis, pleural effusion, and cardiomegaly. CT staging was done based on the progress of the disease and compared with biochemical parameters.
Results
571 patients; between the ages of 19 and 88 suspected to have Coronavirus pneumonia were included in the study. CT stages were compared with the median value of LDH, Fr, TGL, AND CRP All biochemical parameters LDH 692 (438.5 -771 ) (p-value 0.0001), Fr 1.27 (0.64 -1.89) (p-value 0.0001), and CRP (113.4 (95.5 2-207.7 ) (p-value 0.0001), were elevated in higher CT stages. Both elevated biochemical parameters and higher CT stages were associated with the severity and mortality of the disease. No significant p-value was noted with TGL.

Conclusions
Covid 19 pneumonia starts as a respiratory infection but spreads to become a systemic disease. The inflammation is associated with an increase in biochemical parameters which correlate with the staging of the lung by CT and in dead patients.
Dermatofibrosarcoma Protuberans of the abdominal wall
(Case Report)
Authors: Vagholkar Ketan , Vaja Chirag , Narang Narender , Bhatnagar Isha , Nadella Kunal , Kalda Hardik , Vagholkar Suvarna
Published: March 2023

Dermatofibrosarcoma protuberans is a uncommon tumour with enigmatic aetiology arising from the deeper layers of the skin usually involving the dermis and subcutaneous fat. It is an intermediate grade malignancy having a high incidence of local recurrence. Metastasis are rare. MRI of the part helps in assessing the extent of the lesion. Mohs micrographic surgery is the mainstay of treatment. Chemotherapy in the form of Imatinib mesylate and radiotherapy are indicated in recurrent cases.
Posterior Uterine Wall Rupture in a Multiparous Female Presenting Post-Cesarean Deliveries: A Case Report.
Authors: Elbaih Adel , Jihwaprani Muhammad , Mousa Mousa , Hafiz Yusuf , ElKouz Yousef
Published: March 2023

Uterine rupture is a rare and one of the most dreaded complications of pregnancy. It carries potentially disastrous consequences for both the mother and the fetus. It occurs frequently during the antepartum or peripartum period. In the majority of cases, the rupture occurs at the lower anterior uterine segment. However, the rupture can rarely occur atypically at the posterior wall and away from the surgical scar. The recognized major risk factors for uterine rupture include previous cesarean deliveries, uterine surgeries, advanced maternal age, and induction of labor with prostaglandins. Our center experienced an unusual case of posterior uterine rupture in a 40-year-old gravid woman, G8P6A1, presenting four hours after cesarean delivery with non-specific clinical presentation of hypotension and paleness. Physical examination revealed no abdominal distension, pain, or tenderness. Blood per-vaginum was not remarkable. The diagnosis was initially made by ultrasonographic findings and was confirmed by exploratory laparotomy. A subtotal hysterectomy was performed. Our case represents an atypical case of uterine rupture with regard to the time of presentation and the clinical features. A high-index of suspicion is therefore necessary for prompt diagnosis and management to prevent non-desirable outcomes.
A study on the microbial spectrum of otitis externa in a tertiary care teaching hospital
Authors: V Ravishankar , Rajkumar Suresh
Published: March 2023

Background: Otitis externa is frequently seen illness by ENT practitioners predominantly in children and old age people. The severity sometimes varies from it ranges in severity from a trivial infection to dangerous malignant otitis externa. Furthermore, due to absurd consumption of antibiotics, though there is a fall in development of complications, there is a rise in resistance to various infectious organisms. Mostly, we start treating patients with empirical therapy where sometimes, it leads to occurrence of various antibiotic-resistant infections. For that reason, recent evidence about the organism which is mostly involved in infection and also most importantly the pattern of their response to various pharmacological agents is crucial for the sensible use of the medications for the management.

Aim and Objectives: Our study was planned to evaluate and find out the causative organism which is most commonly seen in otitis externa, particularly focusing on drug sensitivity for those organisms, so that efficient management of otitis externa can be done.

Materials and Methods: It is a retrospective study conducted in acute otitis externa patients from Novemver 2019 to January 2020. Patients who all presented with ear discharge within 3 months of period, samples were collected with clinically diagnosed acute otitis externa and sent for culture in blood agar, chocolate agar, and Mcconkey medium in vitro and drug sensitivity pattern was identified for individual organisms. Inclusion criteria: Patients more than 18 years having ear discharge within 3 months were included in the study. Exclusion criteria: Chronically discharging ear >3 months were excluded from the study.

Results: Pseudomonas organism was frequently encountered pathogen in our study, trailed by Staphylococcus aureus. The organisms identified were very much sensitive to drugs like fluoroquinolones particularly Ciprofloxacin, and Aminoglycosides like Amikacin and almost all were responding to treatment with Piperacillin-Tazobactam, these drugs have an cidal activity over pathogens and are suitable for any age and safety-wise better too.

Conclusion: Intermittent assessment and awareness of the bacteriological summary and their drug response profile in a particular geographical area will only help in rational drug prescription. Furthermore, rational usage of drugs will help in reducing any morbidity due to infection which may sometimes develop when treated inappropriately, further decreasing development of dangerous drug resistance.
Histiocytic sarcoma with spinal necrosis in a dog with progressing non-ambulatory tetraparesis
Authors: Nemoto Yuki , Nakaichi Munekazu , Sakurai Masashi , Itamoto Kazuhito , Morimoto Masahiro , Horikirizono Hiro , Ito Harumichi , Sunahara Hiroshi , Tani Kenji
Published: March 2023

Background:
Histiocytic sarcoma (HS) is an aggressive malignant neoplasm, and widespread metastasis occurs with a fatal outcome. HS involving the central nervous system is relatively uncommon. Spinal cord necrosis, a very rare condition, could be induced by ischemia or infarction. Here, we report a dog progressing non-ambulatory tetraparesis with spinal cord necrosis caused by HS.
Case Description:
A 9-year-old male Labrador retriever was presented with a progressing non-ambulatory tetraparesis. CT imaging revealed lysis of the spinous process of T7 and a ring-shaped lesion surrounding the soft tissue of lung fields. T2-weighted MRI showed the spinous processes of T6 to T8 as hyperintense, and the lesion infiltrated into the T7 vertebra and the spinal cord. After euthanasia, the final diagnosis upon necropsy was HS, which was observed in the lung, spinous process, thoracic cord, and the pulmonary hilar lymph node. Moreover, necrotic spots were spread widely through the thoracic spinal cord.
Conclusion:
This report outlines a case of canine HS in the lung, spinous process, thoracic cord, and pulmonary hilar lymph node. Ischemic deficit and necrosis of the thoracic spinal cord resulted from the compression of perivascular tumor cells, which rapidly led to progressive tetraparesis. Although the diagnosis was difficult, MRI and CT images helped determine the prognosis. To our knowledge, this is the first case report of canine HS with direct spinal cord involvement associated with spinal necrosis.
The Application of Situational Teaching Method in Junior School English Teaching
Authors: Huang Jingwen
Published: March 2023

In the process of teaching, teachers always unconsciously create a variety of situations for students. Most Chinese students lack English learning environment, so it is necessary for teachers to use situational teaching method. However, in the actual junior school English teaching process, most teachers use the traditional jug-and-mug teaching method, which leads teachers to ignore the dominant position of students' learning, students' learning interest and motivation to a certain extent. The author analyzes the current situation of junior school English, and finds that situational teaching method can effectively solve these problems. This paper aims at exploring how to create effective situations in junior school English teaching, and take the Constructivism Theory and the Second Language Acquisition Theory as the theoretical fulcrum, using questionnaire survey and interview. Despite there are some the shortcomings of this study, the author still hopes that this study will be helpful to the further study of situational teaching method.
O explorador: desenvolvimento de um jogo digital inclusivo
Authors: Starucka Vitor Philip , Paes Thiago Lipinski , Carneiro Fernanda Maria Trentini
Published: March 2023

Aplicativos estão em todos os lugares e ganham cada vez mais espaço na vida das pessoas. Junto com o crescimento da tecnologia, as relações sociodigitais também crescem, como esferas e pontes de integração e desenvolvimento humano. O presente projeto tem como objetivo propor um jogo acessível ao grupo de pessoas com deficiência visual, visando incluí-los socialmente e oferecer, como em qualquer outro jogo, diversão e lazer. Para isso, foram realizadas várias pesquisas sobre o tema da deficiência, inclusão e restrição da participação social, bem como pesquisas sobre o desenvolvimento de jogos, recursos de acessibilidade e meios de inclusão em jogos. Aqui apresentamos um jogo criado especificamente para pessoas cegas, demonstrando as funcionalidades do mesmo e suas potencialidades.
A ÉTICA E SEUS PRESSUPOSTOS FILOSÓFICOS DE ACORDO COM PLATÃO E ARISTÓTELES
Authors: Assunção Juliana Cristhina Murari , Da Silva Paulo Fraga
Published: March 2023

Este trabalho tem por objetivo realizar uma explanação sobre as concepções éticas de Platão de Aristóteles, abordando o que os filósofos clássicos gregos compreendiam acerca do conceito de ética e se a moralidade era inata ou demandava um processo de ensino e aprendizagem. Para isso, inicialmente serão apresentadas as definições dos termos ética e moral, bem como, suas distinções, apoiados principalmente nos textos de Cortina (2005) e Freitag (1997). Em seguida, serão realizados apontamentos sobre a teoria ética do filósofo Platão, expostas por ele, principalmente nas obras: Mênon e a República. Após isso, se buscará indicar o que o filósofo Aristóteles expôs sobre a ética e seu ensino em sua obra: Ética a Nicômaco. É na Grécia que o ideal de formação humana se inicia, naquele momento são levantadas questões sobre o que se era necessário ensinar e aprender, para que o ser humano se desenvolvesse em sua completude e se torna-se um cidadão atuante. Devido a isso, retomar o entendimento grego arcaico sobre o desenvolvimento da moralidade traz à luz a necessidade de se refletir sobre essas preocupações no sistema educacional contemporâneo.
Periodismo de prevención: una aproximación teórica para la anticipación a los riesgos en el entorno local
Authors: Castro Silvia Alende , López Concepción Gómez , González Aurora García
Published: March 2023

La prevención en los medios de comunicación es un aspecto habitualmente ligado a la gestión del riesgo ante desastres de grandes magnitudes. Sin menoscabar su importancia, frente a este amplio enfoque, el Periodismo de Prevención que aquí se describe llama la atención sobre la necesidad de implementar esta actitud preventiva ante los riesgos del entorno local y de la cotidianeidad del lector. Para comprenderlo, en este trabajo se aportan las bases teóricas que sustentan esta modalidad periodística, que busca aproximarse al día a día del usuario a través de la publicación de información de carácter útil que le capacite para una adecuada gestión de riesgos en su entorno próximo.
MUHASEBE MANİPÜLASYONLARININ BENEİSH MODELİ İLE TESPİT EDİLMESİ: BORSA İSTANBUL (BIST) GIDA, İÇECEK VE TÜTÜN ALT SEKTÖRÜNDE BİR UYGULAMA
Authors: GÜNLÜK Mehmet
Published: March 2023

Bu araştırmanın amacı Borsa İstanbul (BİST) Gıda, İçecek ve Tütün alt sektöründe yer alan şirketlerin 2017-2020 dönemini kapsayan finansal tablolarında muhasebe manipülasyonu yapıp yapmadıklarını Beneish Modeli kullanarak tespit etmektir. Araştırmanın analiz kısmında kullanılan veri seti BIST Gıda, İçecek ve Tütün alt sektöründeki verileri süreklilik gösteren 25 şirketin 2017-2020 dönemine ait finansal tablolarından yararlanılarak oluşturulmuştur.
Analizlerin bulguları 2017-2020 döneminde manipülasyon yapma olasılığı olmayan 5, en az bir kere manipülasyon yapma olasılığı olan 11, en az iki kere manipülasyon yapma olasılığı olan 3, en az üç kere manipülasyon yapma olasılığı olan 4 ve tüm dönemlerde manipülasyon yapma olasılığı olan 2 şirket olduğunu; manipülasyon yapmış olma olasılığını açıklama gücü en yüksek olan değişkenlerin sırasıyla Satışların Büyüme Endeksi, Amortisman Gideri Endeksi, Pazarlama Satış Dağıtım Giderleri ve Genel Yönetim Gideri Endeksi ile Ticari Alacaklar Endeksi olduğunu göstermektedir.
INDIVIDUALIZATION OF THE CHOICE OF INFUSION THERAPY (LITERARY REVIEW)
Authors: Вугерничек А.Ю. , Колесников А.Н. , Герастовский А.В.
Published: March 2023

Инфузионная терапия для тяжелобольных пациентов является самым распространённым способом лечения, но все же с большим количеством противоречий. Были проведены различные инфузионные стратегии на большом количестве пациентах, но все же нет точных данных, заставивших применить это во врачебную практику по всему миру. Каждый пациент имеет свой анамнез, поэтому единый подход вряд ли принесет пользу. Поэтому реаниматологи должны внимательно относится к показаниям, целям, продолжительности, объему, концентрации, типу жидкости и выбирать персональные стратегии инфузии, а также оценивать риск или пользу. Необходимо отметить, что современные отделения интенсивной терапии предоставляют разнообразные данные о пациентах, например, анализы крови, ультразвуковое исследование, инвазивные и неинвазивные измерения гемодинамики и дыхания и другие исследования, помогающие корректировать лечение. В этой статье рассказывается о физиологических эффектах жидкости, гетерогенных действиях одного и того же раствора на пациентов с одним заболеванием.

Infusion therapy for seriously ill patients is the most common method of treatment, but still with a lot of contradictions. Various infusion strategies have been carried out on a large number of patients, but still there is no exact data that forced it to be applied in medical practice around the world. Each patient has his own medical history, so a single approach is unlikely to benefit. Therefore, resuscitators should be attentive to the indications, goals, duration, volume, concentration, type of fluid and choose personal infusion strategies, as well as assess the risk or benefit. It should be noted that modern intensive care units provide a variety of data about patients, for example, blood tests, ultrasound, invasive and non-invasive measurements of hemodynamics and respiration, and other studies that help correct treatment. This article describes the physiological effects of fluid, heterogeneous effects of the same solution on patients with the same disease.
Impact of Sedimentation and Bathymetry of Selected Small Reservoirs on the Priority Water-Linked Sectors in the Zambezi River Basin
Authors: Muchanga Manoah , Sichingabula Henry M. , Wankie Richman , Banda Kawawa , Chisanga Charles , Mubanga Kabwe H.
Published: March 2023

This study was conducted within the Zambezi River Basin to ascertain the bathymetry and sedimentation of selected reservoirs, evaluate their seasonal hydrological regimes, pinpoint the causes of reservoir siltation, and determine how the bathymetry and siltation impacted water-related industries and policy choices. Hydrological field measurements using a hydrographic survey boat, document studies, and interviews were used to collect the data. The 3D spatial analyst tools in ArcGIS 10.3 and hypsometric curves were used to analyze bathymetric data. Thematic analysis was used to analyze qualitative interview data. Findings indicated that sedimentation was a problematic phenomenon spatial-temporally and, it triggered a significant decrease in the storage capacities of the reservoirs. The study noted that catchments with small reservoirs were vulnerable to severe water stress, particularly from July through the beginning of the next rainy season in December. Over 90% of the local population and water-related industries were facing substantial risks of economic water shortages and may continue to face more water challenges amidst escalating climatic changes. The problem could be addressed by coping mechanisms such as alternative livelihoods, water harvesting, and water shedding. This study proposes an Integrated Water Resources Management Framework, which may help incorporate water education to bring about behavioural change against drivers of sedimentation. The proposed sediment and water resources management model serves as a multidisciplinary and transdisciplinary tool that could be used to address siltation concerns. This work has also shown the significance of bathymetric surveys of small reservoirs as a basis for policy context and regulations on managing water resources.
ERGEN-EBEVEYN ÇATIŞMASININ EBEVEYNLERİN YAŞAM KALİTESİ VE KAYGI DÜZEYLERİNE ETKİLERİ
Authors: BAŞOĞUL Ceyda , ZENGİN Mürşide
Published: March 2023

Bu çalışma ergen-ebeveyn çatışmasının ebeveynlerin kaygı düzeyleri ile yaşam kalitelerine etkisini belirlemek amacıyla yapılmıştır. Araştırma tanımlayıcı, kesitsel, ilişkisel tasarımda gerçekleştirildi. Verilerin toplanmasında sosyo-demografik bilgi formu, Durumluk-Süreklilik Kaygı Ölçeği (DSKÖ), Dünya Sağlık Örgütü Yaşam Kalitesi Ölçeği Kısa Formu (DSÖYKÖ-KISA) olmak üzere 3 form kullanıldı. Verilerin değerlendirilmesinde tanımlayıcı istatistikler, Mann Whitney U ve Kruskal Wallis testleri ve Pearson korelasyon testi kullanıldı. Ebeveynlerin %96.1’inin ergenlik dönemindeki çocuklarıyla çatışma yaşadıkları belirlenmiştir. Ebeveynlerin süreklilik kaygı puanlarının ebeveynlerin mesleği, ailenin ekonomik durumu ve ergenle çatışma yaşama durumuna göre istatistiksel olarak anlamlı bir farklılık gösterdiği belirlenmiştir. Çocuklarıyla çatışma yaşadığını bildiren ebeveynlerin kaygı puan ortalamaları ile bedensel, ruhsal, sosyal ve çevre alanları yaşam kalitesi puan ortalamaları arasında negatif yönlü ve istatistiksel olarak anlamlı bir ilişki olduğu saptanmıştır. Bu araştırmanın sonucunda ebeveynlerin tamamına yakınının ergen çocuklarıyla çatışma yaşadıkları saptanmıştır. Çatışma yaşayan ebeveynlerin kaygı düzeylerinin daha yüksek olduğu ve bu kaygının tüm alanlarda yaşam kalitesini olumsuz etkilediği belirlenmiştir. Hemşireler için riskli gruplar içerisinde yer alan ergenler ve ebeveynlerin etkileşiminin sağlığın geliştirilmesi ve birincil koruma kapsamında değerlendirilmesi önemlidir.
QOVUN PO‘STI TARKIBIDAGI FLAVONOIDLAR MIQDORINI XROMATOGRAFIK USULDA ANIQLASH
Authors: Asqarov Ibrohimjon Rahmonovich , Abduraximova Nodira Xayatullayevna
Published: March 2023

Ushbu maqolada qovun po’stining shifobaхsh hususiyatlari va kimyoviy tarkibi o‘rganildi. Qovunning shifobaxshlik xususiyatlari keng qamrovli bo‘lgani, tarkibidagi biologik faol moddalarning mavjudligi shuningdek, uning tarkibidagi flavonoidlar miqdori yuqori samarali suyuqlik xromatografiyasi (YSSX) usuli bilan aniqlandi.
Investeringstoetsing door de Wet veiligheidstoets investeringen, fusies en overnames
Authors: Koster H.
Published: March 2023

Investeringstoetsing door de Wet veiligheidstoets investeringen, fusies en overnames

In dit artikel bespreekt de auteur de Wet veiligheidstoets investeringen, fusies en overnames (Wet Vifo). Met deze wet beoogt de Nederlandse regering de bescherming van de nationale veiligheid beter te waarborgen ‘door een toets in te voeren op verwervingsactiviteiten die leiden tot wijzigingen in de zeggenschap over vitale aanbieders of tot wijzigingen in de zeggenschap over, of verkrijging dan wel vergroting van significante invloed op, ondernemingen die beschikken over sensitieve technologie’. Op een later tijdstip is aan het wetsvoorstel nog toegevoegd de beheerder van een bedrijfscampus.
Medezeggenschap: van ‘the beginning’ tot ‘the next level’
Authors: Vink-Dijkstra R.E.M.
Published: March 2023

Medezeggenschap: van ‘the beginning’ tot ‘the next level’

De Wet op de ondernemingsraden (Wor) reguleert in Nederland de vormen van medezeggenschap binnen ondernemingen. De vraag rijst of de huidige wettelijke regeling nog voldoende aansluit op de besluitvorming binnen ondernemingen en de regulering van arbeid binnen diezelfde ondernemingen. Kunnen medewerkers voldoende invloed uitoefenen op de besluitvorming? De medezeggenschap moet meebewegen met de ontwikkelingen op de arbeidsmarkt en de juiste plaats krijgen binnen complexe ondernemingen. Biedt de Wor daarvoor voldoende ruimte, welke voorwaarden zouden daaraan kunnen worden gesteld, en welke aanbevelingen kunnen worden gegeven om medezeggenschap toekomstbestendig te maken? Dit is onderdeel van het onderzoek naar medezeggenschap ‘the next level’.
Effects of Indium and Gallium ratio on tarnish resistance, corrosion and mechanical properties of 950 silver alloy
Authors: YANIL Aumphol , VISUTTIPITUKUL Patama , NISARATANAPORN Ekasit , PREUKSARATTANAWUT Charasphat
Published: March 2023

The effects of Indium (In) and Gallium (Ga) ratio on tarnish resistance, corrosion and mechanical properties of 950 silver alloy were studied. 950 Silver alloy with aluminium (Al), silica (Si) and germanium (Ge) were added with In and Ga at the range of 0.44 to 1.90 weight percent. The increment of secondary structure with Ge-Si rich phase in Ag-Al alloy increases hardness, but reduces ultimate tensile strength. The addition of In and Ga improves tarnish and corrosion resistance. The color differences as indicated by Delta E tolerances (DE*) of Ag-Al alloys are in the range of 8.64 to 11.40 while this property of Ag-Cu is 39.37. Ecorr of Ag-Al alloys are in the range of -0.068 to -0.010 V which are higher than that of Ag-Cu Alloy (-0.147 V). Besides, Ga is more effective for tarnish and corrosion resistance than In. However, Ga/In co-addition reduces these properties by the formation of Ge-Si-Ga-In phase. The protective thin film of Ag-Al alloy was detected by XPS. The Al2O3, In2O3 and Ga2O3 films were found. When the proportion of Ga in Ag-Al alloys increases, the hardness marginally increases while the tensile strength slightly reduces. The additions of Al, Ga, In, Ge and Si reduce the melting point of Ag-Al alloys comparing with Ag-Cu alloy and simultaneously improve the casting quality.
Synthesis of zircon pigments from rice husk ash and their performance in ceramic glaze
Authors: YONGVANICH Niti , SOYSOM Peerapat , RATKASEMSAK Worachet
Published: March 2023

ZrSiO4-based pigments have been known to be very stable in ceramic glazes but require a high firing temperature required for phase formation. This study examined the feasibility of using rice husk waste as a substitute for crystalline SiO2. The amorphous form of silica with some impurities was obtained by calcining the rice husk at 800℃. The general chemical formula were (Zr0.9M0.1)SiO4, where M = V, Pr, Fe and Cr. The solid-state processing was achieved by firing at 1300℃ for 12 h with NaF (5 wt%). X-ray Diffraction revealed a lower relative fraction between ZrO2 (secondary phase) and ZrSiO4 in the RHA systems compared to the oxide system for all dopants. Amorphousness of RHA did help enhance phase formability. The particle sizes were in the 3 µm to 5 µm range. Elemental analysis revealed some areas with intense signals of zirconium, indicating unreacted ZrO2 particles. Colorations appeared to be blue, yellow, brown and green for dopants of V, Pr, Fe and Cr, respectively. Technological performance was tested in a practical ceramic glaze and frequently used raw materials fired at its maturation point. The results of this study hold huge potential for using rice husks for sustainable manufacturing of pigments as green products.
Investigation of surface hardness and roughness on formability of aluminum alloy sheet AA2024-T3 subjected to the shot peening process by silica shots
Authors: SAWANGPAN Jurarat , PANICH Sansot , JANTARASRICHA Tanakorn , KHANTACHAWANA Anak
Published: March 2023

Shot peening is one type of modified surface treatment that produces a residual compressive stress on the material subsurface and improves surface properties while generating plastic deformation on the surface. This research work aims to improve surface properties, which include the enhanced material formability of aluminum alloy 2024-T3 sheet having 1.2 mm of thickness, by providing residual compressive stress on the surface using the shot peening process, which uses silica particles of 0.1 mm in diameter. First, shot peening was performed using various process parameters: compressed air, distance from nozzle to target, and duration time. Based on the obtained peening sheet, the surface hardness and roughness tests were experimentally performed on the peened surfaces. Additionally, the residual tension created in the sheet after the shot peening is calculated using the X-ray diffraction technique. Consequently, the shot-peened and unpeened sheets were put through hole expansion and Erichsen cupping tests to compare the results of the formability between the shot-peened and unpeened sheets. It was found that peened sheets had a low surface roughness and increased surface hardness, which is better than the unpeened sheet. Moreover, the residual compressive stresses were higher than on the original sheet. Last, the shot peening condition, which changed the surface properties the most, was tested on the hole expansion and Ericshen cupping tests, where the formability results were very significant.
Development of inexpensive device for methanol detection in hand sanitizer gel using manganese-doped zinc sulfide quantum dots modified by N-methylpolypyrrole
Authors: KHENTHAPHAK Sophanat , JULEANG Pakorn , WONSAWAT Wanida , CHAILAPAKUL Orawon , PUNRAT Eakkasit
Published: March 2023

A method for methanol detection by an inexpensive device using a nanomaterial modified by N-methylpolypyrrole (NMPPY) has been developed. Manganese-doped zinc sulfide quantum dots (Mn/ZnS-QDs) were synthesized and then characterized by a fluorescence spectrophotometer to study their spectroscopic properties. Mn/ZnS-QDs were modified with NMPPy and studied by digital-image colorimetry to optimize conditions for methanol detection. A 2 mL of 3000 mg∙L–1 Mn/ZnS-QDs modified with 300 μL of 1000 mg∙L-1 of NMPPy was chosen to be a detecting reagent for methanol determination. Under the optimum conditions, the linear range was found to be 2%v/v to 50%v/v of methanol with R-square of 0.9434 and the sensitivity of 3.569 ´ 10–3 (%v/v)-1, whilst the limit of detection (LOD) was 19.5%v/v. The selectivity of this method was also studied with several solvents; it was proven selective for methanol. Furthermore, a prototype device with simple and inexpensive has been created. The analytical performances were studied; the linearity of methanol detection was found in the range of 20%v/v to 80%v/v with R-square of 0.9918 and the sensitivity of 3.38 ´ 10-3 (%v/v)-1. Finally, the newly developed device was applied to analyze samples of hand sanitizer gel by digital-image colorimetry with acceptable results.
Fabrication of glass-ceramics composite by infiltration of lithium tetraborate glass into porous magnesium aluminate spinel ceramic
Authors: KULRAT Nattawat , BUSABOK Chumphol , INTARASIRI Saweat , DANGTIP Somsak , KHONGWONG Wasana
Published: March 2023

Magnesium aluminate spinel (MAS) glass-ceramics composite has excellent mechanical and optical properties. It can be obtained from porous ceramic by infiltrating the proper choice of glass. In this study, porous MAS ceramic was prepared by conventional sintering from MAS powder to reach a bulk density of 2.48 g∙cm-3 (70.1% of relative density). The porous MAS ceramic was then infiltrated with molten lithium tetraborate glass (Li2B4O7; LTB) at 950℃ for 30 (IF30) and 60 (IF60) min. They were left to cool down to 700℃ inside the furnace before being taken out to quench in ambient. The glass-ceramics composite was obtained with 98.7% and 92.1% relative density for IF30 and IF60 cases, respectively. SEM images reveal a lower degree of porosity in the IF30 case, which achieves higher flexural strength of 119.7 MPa. X-ray diffraction and Raman spectroscopy indicate that Mg2B2O5 phase (at 2q =35°) and B2O5 functional group (at 847 cm-1) are formed during infiltration. Consequently, their micro vickers hardness increased (3.41®5.53®6.16 GPa).
Mechanical behavior and physicochemical modifications in lignosulfonate-treated fique (Furcraea Andina) fibers
Authors: SILVA Beatriz Dantas Lourenço da , AGRIZE Paula Lage , VEIGA Betina Carvalho , NASCIMENTO Lucio Fabio Cassiano , ROCHA Camila Aparecida Abelha , BRAGA Fábio de Oliveira
Published: March 2023

One of the most frequent problems in biocomposites is the physical/chemical incompatibility between natural lignocellulosic fibers (NLF) and the matrix. Physical and/or chemical treatments are the most common approach to improve interface properties. Seeking for environmentally friendly treatments, lignosulfonates (LSs) have been considered for surface modification of NLF due to their amphiphilic properties. Thus, the objective of the present work is to evaluate the influence of sodium LS (SLS) treatment protocols in the properties and mechanical behavior of fique (Furcraea Andina) fibers. X-ray diffraction (XRD), Thermogravimetric (TGA) and spectroscopic (FTIR) analyzes were performed, as well as optical microscopy, scanning electron microscopy (SEM), fiber-diameter measurements and tensile tests. The results showed efficient surface cleaning from extractives and absorption of saline and aromatic components from SLS. Partial removal of lignin and hemicellulose was observed as well, manifested by an increasing in fiber crystallinity, decreasing in the intensity of the characteristic bands of C=O (acetyl and ester) and p-hydroxy-phenyl, and displacement in the temperature of cellulose pyrolysis to lower temperatures. These phenomena were stronger in the fibers with longer exposures to SLS. The SLS treatment protocols produce a narrower strength distribution, improving the reliability of the fibers relative to its mechanical behavior.
Potential biological control agents for the control of vector mosquitoes: A review
Authors: RAWANI Anjali
Published: March 2023

Mosquitoes are a major cause of lethal vector-borne diseases like dengue, malaria, filariasis, chikungunya, and Japanese encephalitis, among other diseases. In a developing country like India, mosquito-borne diseases are significant threats to familiar people as in certain places, there remains low sanitation. Larval and pupal life stages of mosquitoes are mostly confined to tropical and temperate waterbodies and often form a significant proportion of biomass waterbodies. Due to rebound vectorial capacity, resistance to chemical insecticides, and harmful environmental effects, the vector control program has shifted to using biological control agents. These methods are target-specific, eco-friendly, cost-effective, and can be easily deployed. So, the present review is focused on collating and updating the information on the use of aquatic predators, bacterial strains such as Bacillus sp. and actinobacterial, algae, and fungi, which are widely used for control of adult mosquitoes in their variety of natural habitats. This review also covers the predation of larvivorous fish and botanical insecticides.
Environmental variations on physicochemical properties in vasicine content of Adhatoda vasica - An ayurvedic medicinal plant
Authors: GAUTAM Palshikar , PITCHAIMUTHU Shanmugapandiyan
Published: March 2023

Adhatoda vasica (Acanthaceae) is a medicinal plant used in traditional formulations for the treatment of various disease conditions. The physicochemical properties fluctuate with the season and in response to stress. To obtain the highest medicinal value it is necessary to collect the plant raw material in the correct season. The present study was aim to evaluate the physiochemical fluctuations in the leaves of A. vasica and the vasicine, an antidiabetic constituent in these leaves. Leaves were collected in every month of a year at different time and places and authentication and standardization was done. The leaves were evaluated for the macroscopic and microscopic evaluation, quantitative microscopy, proximate phytochemical analysis, extractive values in petroleum ether, chloroform, ethyl acetate, ethanol, water, and determination of the concentration of antidiabetic component vasicine. The leaves showed morphological and microscopical variations in different seasons. The phytochemical composition was the same in all seasons however the levels of extractive values fluctuated in response to seasonal variations. Maximum levels of ethanol and water extract were obtained in the winter season also the vasicine concentration was higher in this season.
Chemical composition of Vitex agnus-castus L. flowers collected from populations distributed in Aydin, Türkiye
Authors: SEVİNDİK Emre , KARAKOYUN Deniz , GÜLDERE İbrahim M. , BORHAN Fatih , APAYDIN Elif , KABİL Emre
Published: March 2023

Essential oils (EOs) are compounds that are biosynthesized autonomously by aromatic plants as their secondary metabolites. Vitex agnus-castus plant leaves, flowers and fruits are of pharmacological importance. In this study, the chemical composition determination of the essential oils of the Vitex agnus-castus flowers with different colors (white, pink, purple) growing in Aydin ecological conditions was carried out with the extraction using Clevenger hydro-distillation apparatus and then the essential oil composition was determined by Gas Chromatography-Mass Spectrometer (GC-MS). As a result of the study, ‘Çakmar’ pink-flowered population had the main component (-)-allospathulenol (14.59%), ‘Çakmar’ purple-flowered and ‘Koçarli’ purple-flowered populations had the main component pyrrolo (3,2,1-jk) carbazole (14.42% and 14.68%, respectively), while ‘Çakmar’ white flowered, ‘Koçarli’ white flowered and ‘Koçarli’ pink flowered populations had the main component caryophyllene (15.54%, 12.64%, and 19.05 respectively).
Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8: Two newly reported tannase producing bacteria isolated from forest soil and study of their tannase producing potentiality
Authors: BISWAS Ishita , DAS MOHAPATRA Pradeep K.
Published: March 2023

Tannins are the polyphenolic secondary metabolites of plants and having antimicrobial properties due to their protein precipitation abilities and other toxic effects towards microbes. However, with the help of an inducible enzyme called tannase, a variety of microbes including bacteria can resist tannin toxicity. Tannase catalyses the dissociation of ester bonds in gallotannins like tannic acid, resulting in release of gallic acid and glucose. Because of its vast industrial applications and ease of manipulation, interest in identifying and applying bacteria as tannase producers has grown in recent years. The bacterial strains reported in the present work were isolated from soil and identified as Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8 through morphological, biochemical, and 16s rDNA molecular approach. Simultaneous tannase and gallic acid production by these two bacterial strains were observed through submerged fermentation. This is the first report of Paraburkholderia tropica PKI7 and Kosakonia arachidis PKI8 strains as tannase producing bacteria. The initial tannase production were 0.75 U/ml and 1.49 U/ml respectively for P. tropica PKI7 and K. arachidis PKI8 after 24 h of submerged fermentation while gallic acid release was 8.4 µg/ml and 10.74 µg/ml respectively. There is a potential scope in higher tannase and gallic acid biosynthesis by the two strains.