bluuebunny/crossref_metadata_2025 huggingface dataset:
Perancangan Sudu Turbine Expander Menggunakan Profil NACA 0018 Dengan Program Cascade dan CFD
Authors: Managi I Marlon
Published: July 2023

Research and development of the Organic Rankine Cycle (ORC) is becoming increasingly intense for converting heat into electricity. Many heat sources are available such as: solar radiation, biomass combustion, heat waste from factory and geothermal. Radial turbine is chosen for Organic Rankine Cycle due to its simple structure, components availability, and ease of application on a small power plant scale. The efficiency of the cycle is highly dependent on the design of the radial turbine. This study aims to obtain a turboexpander design with the utilization of NACA0018 airfoil as a stator. Optimization of stator blade with direct analysis method using "Cascade" program to obtain optimal inlet and outlet angle. From the simulation, the efficiency of the turboexpander was 65.13 percent with an output power of 6,513 kW. Radial turboexpander that works at an inlet pressure of 3 bar and a rotational speed 9000 rpm using the NACA0018 profile stator, obtained results where fluids flow in the rotor with shock free conditions and no swirl occurs.
Penelitian dan pengembangan Siklus Rankine Organik (ORC) menjadi semakin intens untuk menkonversi panas menjadi listrik. Sumber panas yang beragam seperti: radiasi matahari, pembakaran biomassa dan pemanfaatan panas dari limbah panas pabrik, maupun panas bumi. Pemilihan turbin radial untuk siklus Rankine organik dikarenakan struktur yang sederhana, ketersediaan komponen, dan kemudahan aplikasi pada skala pembangkit listrik kecil. Effisiensi dari siklus sangat bergantung pada desain turbine radial. Studi ini dilakukan untuk memperoleh desain turboexpander dengan pemanfaatan airfoil NACA0018 sebagai stator. Optimasi sudu stator dengan metoda direct analysis menggunakan program “Cascade” untuk mendapatkan sudut inlet dan outlet yang optimal. Dari simulasi diperoleh hasil effisiensi dari turboexpander sebesar 65,13 persen dengan daya keluaran sebesar 6,513 kW.  Turboexpander radial yang bekerja pada tekanan inlet 3 bar dan kecepatan rotasional 9000 rpm dengan menggunakan stator profil NACA0018, didapat hasil dimana aliran fluida pada rotor dengan kondisi shock free dan tidak terjadi swirl.
Emprendimiento sostenible: una revisión sistemática de la literatura
Authors: Solarte Solarte Claudia Magali , Rivera Vallejo Gloria Alicia , Viveros Almeida Luis Homero , Urresta Yépez Ramiro Fernando
Published: July 2023

Actualmente, están incrementando los problemas como la degradación ambiental, la brecha de riqueza y el acceso desigual a oportunidades y recursos. Estas preocupaciones han aumentado la necesidad de un espíritu empresarial sostenible, definido como prácticas comerciales sostenibles. El espíritu empresarial es central en la transición hacia un futuro más sostenible, mientras que la alineación de los objetivos sociales, económicos, ecológicos y los empresarios sostenibles juegan un papel importante. Esta revisión sistemática de la literatura analiza el campo del emprendimiento sostenible y el alcance de la integración holística en el ámbito empresarial global, por lo tanto, llena un vacío en la literatura existente. Su objetivo es analizar la profundidad de la literatura existente sobre el emprendimiento sostenible, sus definiciones y sus aplicaciones en las prácticas empresariales. El análisis se basa en una búsqueda bibliográfica en la base de datos Scopus, Scielo, Redalyc, Google Scholar, Science Direct, Dialnet y DOAJ, en torno a la palabra clave “emprendimiento sostenible”. Se concluye que los niveles deseados de sostenibilidad requieren colaboraciones entre todas las partes interesadas, mientras que la transición hacia modelos de negocio orientados a servicios ha contribuido al crecimiento del espíritu empresarial sostenible. Sin embargo, las estructuras institucionales existentes favorecen los negocios y sistemas insostenibles actuales sobre los sostenibles más nuevos, exigiendo que los ecoemprendedores inicien cambios institucionales.
Parameter optimization of coriolis mass flow meter in laminar flow regime using Doe-Taguchi method
Authors: KOLHE Vikram , PAWAR Suyash , CHAUDHARI Vishal , EDLABADKAR Ravindra , SONAWANE Sandipkumar
Published: July 2023

The paper outlines the progression of a mathematical model using the Taguchi approach to analyze the performance of a Coriolis mass flow meter (CMFM). The sensor position, exci-tation frequency, and flow rate parameters were optimized using the Taguchi method for the meter’s maximum time-lag output. An orthogonal array of experiments was designed, and the time lag results were obtained for two tube configurations (viz. Omega and Diamond) and parameter levels. The obtained data was analyzed using analysis of variance (ANOVA) to understand the relationship between the variables and the time lag. The results showed that the Omega tube configuration exhibited a lower percentage error compared to the Diamond tube configuration. Additionally, an increase in flow rate led to a decrease in the error. The regression models fitted the experimental data well, with high R2 values indicating a good fit. The ANOVA showed the factors’ importance in affecting the time lag and the levels of interac-tion between the best individual parameters for maximizing the outcome. The most important factors affecting the Omega and Diamond tube configurations’ maximum performance have been identified as the flow rate and sensor position, respectively. This study offers a system-atic method for optimizing sensor parameters and provides light on how CMFMs behave in laminar flow. The experimental setup and mathematical model also serve as a basis for future research and advancements in CMFM design and functionality.
Determinan Kualitas Informasi Keuangan pada Entitas Kesehatan: Peran Mediasi Sistem Informasi Akuntansi
Authors: Tahar Afrizal , Azzahra Nitia Itsar , Az-zahro Siti Fatimah
Published: July 2023

Latar Belakang: Informasi keuangan yang berisikan penjelasan tentang kinerja perusahaan harus andal, artinya penyajian harus jujur dan substansial. Menariknya, Indonesia Corruption Watch menyatakan bahwa dalam kurun waktu 2010-2016 ditemukan 219 kasus korupsi pada entitas kesehatan dengan 519 orang tersangka dan kerugian negara mencapai Rp 890 Miliar. Berangkat dari temuan tersebut, dapat dinyatakan bahwa informasi keuangan yang disajikan oleh entitas kesehatan belum sepenuhnya menggambarkan informasi yang berkualitas. Tujuan: Penelitian ini bertujuan untuk menguji pengaruh ketersediaan dan fungsi software serta ketersediaan dan fungsi jaringan komunikasi terhadap kualitas informasi keuangan dengan kualitas sistem informasi akuntansi sebagai variabel pemediasi.Metode Penelitian: Penelitian menggunakan desain survei kuesioner dalam pengujian hipotesis. Sebanyak 79 responden berpartisipasi dalam penelitian. Teknik pengambilan sampel menggunakan purposive sampling dengan kriteria responden telah bekerja minimal satu tahun dan berpendidikan minimal diploma. Lebih lanjut, penelitian menerapkan teknik analisis SEM-PLS menggunakan software SmartPLS 3.0 dalam menguji hipotesis penelitian.Hasil Penelitian: Hasil penelitian menunjukkan bahwa ketersediaan fungsi software dan kualitas sistem informasi akuntansi berpengaruh posistif terhadap kualitas informasi keuangan, sedangkan ketersediaan dan fungsi jaringan komunikasi tidak berpengaruh terhadap kualitas informasi keuangan. Kualitas sistem informasi akuntansi memediasi variabel ketersediaan dan fungsi software terhadap kualitas informasi keuangan, namun tidak memediasi variabel ketersediaan dan fungsi jaringan komunikasi.Keaslian/Kebaruan Penelitian: Penelitian ini jarang dilakukan pada entitas kesehatan terlebih di Indonesia sehingga hasil penelitian akan menambah literatur dan wawasan baru terlebih dalam mengeksplorasi peran mediasi dari sistem informasi akuntansi.
Artificial intelligence as a tool for improving oral cancer outcomes
Authors: Sawhney Hemant , Bhargava Deepak , Kashwani Ritik , Mishra Richa
Published: July 2023

Oral cancer detection at an early stage remains a challenging situation for health professionals in the rural setup. This is due to lack of training and infrastructure facilities. In the era of modernization, when tools like artificial intelligence and machine learning are gaining acceptance, this article throws insight into the role of AI as a tool for improving oral cancer outcomes.
A study on the relationship between stress-associated lifestyles disorders and essential preventive therapy among women entrepreneurs
Authors: Banerjee Swapan , Bera Pallab
Published: July 2023

Stress is one of the critical factors nowadays affecting almost all people globally. Our study aims to find the association between stress among women entrepreneurs and their metabolic health issues caused by various hormonal imbalances. The study correlated with major female health issues such as polycystic ovarian syndrome, obesity, hyperprolactinemia, infertility, bone health, and trending lifestyle-changing interventions: diet, homeopathic, hormonal treatments, etc. A total of 60 women participants within the age group from 30 to 45 years were included in the study at Kolkata and surrounding areas considering participants’ hectic lifestyles, food and exercise habits, medicines, etc. The semi-structured online survey was done through email using the particular questionnaire based on biochemical test reports, seven-day diet and activities records, and medicine consumption cum hormonal intake irrespective of the participant. Pearson Chi-square test, Likelihood Ratio, Symmetric Measures applied for statistical analysis using SPSS-22. The results showed that the two types of stress were found in 30 participants in each category with asymptotic significance (2-sided) .392 and .403, respectively, while Chi-square significance is approximately .05. So, there is no statistical significance between the relationship of participants’ age, all types of concerning diseases, and practicing therapies. The study found that many participants were not following diet despite knowledge of health benefits. The study concluded that stress can be directly or indirectly related to metabolic syndrome but not always cause hormonal imbalances. However, the participants should go with a proper diet and exercise rather than practicing a fad diet or so-called crash diets.
To study indication’s outcomes and complications of non-invasive ventilation in acute respiratory failure
Authors: Mohan Sanchit , Pujari Vishwanath , Meshram Priti
Published: July 2023

Failure of respiratory system in one or both of its gas-exchanging functions- oxygenation of pulmonary arterial blood and carbon-dioxide elimination from mixed venous blood. Non-Invasive Ventilation is an alternative to invasive ventilation in many conditions it is a valuable component in patient management. Its use in acute respiratory failure is widely accepted and well known.

To Study the indications, outcomes, and complications of NIV.

This is a prospective observational study conducted on 100 patients admitted with either Type-I or Type -II respiratory failure.

Various common indications for use of NIV in acute Respiratory Failure are COPD, ILD, Bronchiectasis, Pneumonia, Pulmonary Thromboembolism, Kyphoscoliosis, and Pulmonary Tuberculosis in that order. The overall success rate of NIV is 84%.

NIV helps in improving gas exchange in acute respiratory failure irrespective of its type, reduces intubation and length of hospital stay hence, its use as the first modality of treatment in patients without overt contraindications is recommended. Overall, NIV is safe and effective in patients with acute respiratory failure as there are no major complications associated with its use.
Child feeding practices of mothers of rural coastal area of Navsari district
Authors: Gandhi Shreyashkumar Jayantilal , Patel Kuntalkumar H. , Solanki Nitin , Modi Anjali , Godara Naresh
Published: July 2023

Poor feeding habits are one of the most serious barriers to achieving and preserving health of children under the age of five, as they pose a significant challenge to social and economic growth.

To know the socio-demographic profile and to study the prevalence of Infant and young child feeding practices of mothers

A cross-sectional study in rural areas of Navsari district, Gujarat, included 243 women, who had one child aged 12 to 23 months preceding data collection. Data were analyzed using statistical software Epi Info 6.

About 32% of the infants had received pre-lacteals feeds, most common feed was Gripe water (44.9%). The colostrum was fed by 90 % mothers. Half of mothers had initiated breast-feeding within 1 hour after delivery. Only 88 mothers (36.2%) had given exclusive breast-feeding for 6 months. About half of children had received complementary feeding during 6–9 months of age. Most of the mothers (96.7%) were washing their hands before each feeding of the child whereas 61.7 % were cooking special meal for the child. Majority of mothers (93.8%) think that breast-feeding should be continued for 1 to 2 years.

Continuing to emphasise nutrition education could go a long way toward empowering mothers to avoid using pre-lacteal feeds, to sustain exclusive breastfeeding for a prescribed period, to incorporate complementary foods at the appropriate time, and to enhance overall child-care through optimum use of community health workers.
A comparative study between butorphanol and tramadol as adjuvant with epidural bupivacaine for post-operative analgesia after pelvi-acetabular surgery
Authors: Manuar Md. Babrak , Sofiullah Md. , Roy Amrita , Mukherjee Anindya
Published: July 2023

Epidural analgesia using local anaesthetic agent is popular simple, effective & economical way of providing postoperative analgesia. In few previous study opioids were added with local anaesthetics, so that even small doses can provide profound analgesia of longer duration with less side effects. We compared the efficacy of epidural butophanol with tramadol as adjuvant with bupivacaine, for postoperative analgesia in view of safety profile among opioids.

Sixty patients undergoing pelvi-acetabular surgery were randomly assigned into two groups B & T in double blinded fashion. Group B received 2ml Butorphanol (2mg) & group T received 2ml of tramadol(100mg) as adjuvant with 8ml Bupivacaine (0.125%) as first does. 1ml Butorphanol (1mg) in group B & 1 ml Tramadol(50mg) in group T as adjuvant with 9ml Bupivacaine (0.125%) as subsequent does when VAS>4. Quality of analgesia assessed using VAS for 24hours. Duration of analgesia calculated by time of first analgesia request. Post-operative nausea vomiting & sedation compared.

Both butorphanol group & tramadol group provide adequate analgesia but significantly lesser requirement of analgesic doses was observed in the group T compared to Group B. Duration of analgesia in Group B was about 6-7 hour & in Group T was about 8-9 hours. More PONV in Group T & more sedation in group B seen.

Therefore, it suggests that epidural bupivacaine with butorphanol has better quality of analgesia in comparison with bupivacaine with tramadol. Although bupivacaine with tramadol has longer duration of analgesia but causes significant nausea & vomiting.
Surgical profile of patients with of benign breast disease at a tertiary care centre: A hospital based retrospective study
Authors: Tukaram Arun Kumar , Mogali Vishwanath S , Kumar B Prashanth , Hudge Prashanth N
Published: July 2023

Benign Breast Diseases, though more frequently responsible for bringing the patient to the doctor, have not found many places in good recent researches. Benign lesions of the breast have assumed increasing importance in recent years because of the public awareness of breast cancer. These benign lumps are a recognized important risk factor for later breast cancer.

To study the surgical profile of patient with benign breast disease

This retrospective study was conducted at ESIC medical college and Hospital Gulbarga, India. Study conducted after approval of Scientific committee and Ethical committee. Records of all patients undergoing breast surgery from the period March 2016 to March 2021 were analysed, and age, sex, laterality, diagnosis and surgery performed were noted.

The most common type of benign breast disease was fibroadenoma in 58.4% of the cases. The most common age group affected was 21-30 years seen in 60.3% of the cases. Right side was most commonly affected in 57.3% of the cases. Benign breast disease as expected is more common in females (98.7%) compared to males who had only eight cases. Most common type of surgery performed was excision in all cases except for duct ectasia in which case microdochtecomy was performed. Circumareolar type of incision was most commonly used in all cases.

Fibroadenoma was most common type of benign breast disease affecting 21-30 years of age commonly and right side. Excision remains the most commonly performed surgery for benign breast disease. Most of benign breast lumps surgery was done using circumareolar incision.
Role of fiberoptic bronchoscopy in early diagnosis of non-resolving pneumonia
Authors: Madhavi K.V. Phani , Praveena S. , Praveen J.V. , Kumar S Manoj
Published: July 2023

Non-resolving pneumonia are not so infrequent with a clinical scenario where multiple diagnostic modalities are required to arrive at a diagnosis. We aimed to assess the role of fiberoptic bronchoscopy in early diagnosis of non-resolving pneumonia.

This is a prospective observational study done in department of pulmonary medicine from January 2020 to December 2020. 90 cases of non-resolving pneumonia cases attending the department of pulmonary medicine, AMC were selected after applying inclusion and exclusion criteria. These cases were subjected to fiber optic bronchoscopy. BAL, bronchial brushings and washings were collected and analyzed.

Among 90 cases of non-resolving pneumonia studied, 50 to 60 years age group were commonly affected accounting to 33%. Male predominance was observed with 73.3%. Smoking was common observation accounting to 51%. Bacterial pneumonias were found to be commonest etiology followed by tuberculosis, bronchogenic carcinoma and fungal infection accounting to 46.6%; 22.2%; 17.7%; 1.1% respectively. Diagnosis was indeterminate in 12.2% of cases.

Fiberoptic bronchoscopy is an excellent aid in diagnosis of non-resolving pneumonia thus enabling to differentiate bacterial pneumonias as well as fungal infection and pulmonary tuberculosis. It also helps to rule out bronchogenic carcinoma.
Study of significance of p53 expression in primary ovarian tumour
Authors: Mohapatro Meenakshi , Das Prasanta kumar , Sahoo Swatismita
Published: July 2023

The purpose of the study was to understand the molecular changes that happen in human cancer, P53 gene mutation. Here, with respect to P53 immunohistochemical staining were taken into consideration as the surrogate for the mutational analysis. This was used for the diagnosis of ovarian cancer.

The main aim of the study was to evaluate the immunohistochemical frequency of the P53 and to correlate its expression with the prognosis.

In the current study 107 cases associated with ovarian cancer were studied. The samples received were hysterectomy as well as unilateral and bilateral salpingo-oophorectomy specimens, which were fixed in 10% neutral buffer formalin and processed routinely.

68.7% of the patients showed P53 malignant ovarian tumours. In the benign, it was considered as negative or in the position of borderline tumour. No statistically significant correlation was shown between the age and P53 expression. There was statistically significant difference between borderline, benign and the malignant tumors. It was also assessed that there was a statistically significant difference between P53 expression and serous carcinoma in the current study.

The present study concludes that P53 tumor gene was found to be mutated in more than the 50% of the human cancer and was expressed as the aberrant form of protein. The study also concludes that in borderline tumor, P53 rarely mutates and is results in poor prognosis.
A Facile Synthesis and Investigation of Na8[ZrErNd(MoO4)9] Complex
Authors: Nersisyan L.G. , Petrosyan H.R.
Published: July 2023

The continuous growth of rare earth elements (REE) value and the widespread use of molybdates in medicine and various industries and technologies determine the ever-increasing interest in this type of material. In this research, the interactions in the ZrOCl2-Er2Cl3-NdCl3-Na2MoO4-H2O multicomponent system at a temperature of 20 °С were studied by the method of residual concentrations well known as Tananaev’s or so-called apparent volume method. It was shown that a chemical reaction takes place in the system under study, resulting in the formation of a complex molecule that is insoluble in water. A detailed physicochemical study (X-ray diffraction, IR spectroscopy, thermal analysis) of the formed material was carried out. For the first time, it was possible to obtain rare earth element’s molybdates in the form of Na8[ZrErNd(MoO4)9]∙3.86H2O complex material by low cost and low-temperature method.
Разработка системы контроля качества работ предприятия
Authors: Ершова А.Д.
Published: July 2023

Исследованы теоретические и методические аспекты разработки системы контроля качества работ предприятия. Рассмотрены возможные пути достижения результата и их особенности, приведен перечень необходимых ресурсов, как человеческих, так и материальных. В статье приведены выгоды, извлекаемые из инструмента контроля качества работ, а также даны рекомендации к решению задачи от этапа задумки до развертывания информационной системы на собственном сервере.
Элементы проектной деятельности в образовании
Authors: Филатова А.В , Гаева М.И
Published: July 2023

В статье рассматриваются вопросы элементов проектной деятельности. Основными элементами проектной деятельности являются субъект и объект проектирования, его цель, технология (как совокупность операций), средства, методы и условия проектирования. Субъектом проектирования всегда служат различные носители управленческой деятельности — как отдельные личности, так и организации, коллективы, социальные институты, ставящие своей целью преобразование действительности. Кроме субъектов проектирования, участниками разработки и реализации содержательной части проектов
Разрешительная документация при организации проектирования общественных зданий
Authors: Давыдов Е.С , Сальников М.Ю
Published: July 2023

В статье рассматривается вопрос начальной стадии проектирования общественных зданий – это сбор исходно-разрешительной документации (ИРД). В исходно-разрешительную документацию входят материалы на основании которых подтверждается возможность реализовать проект заказчика. Исходно-разрешительная документация выдаѐтся органами местной власти, в случае если в пятно застройки попадает инженерные коммуникации, то и разрешения эксплуатирующих эти инженерные сети организаций, другими контролирующими структурами или любой другой структуры при наличии права собственности на земельный участок
Предотвращение размывов откосов земляного полотна насыпей и откосов выемок под воздействием атмосферных осадков
Authors: Дормидонтова Т.В , Мовсесян Т..Е.
Published: July 2023

В статье рассматриваются способы предотвращение размывов откосов земляного полотна насыпей и откосов выемок под воздействием атмосферных осадков. Представлена защита откосов насыпей от воды при помощи формирования регуляционных валиков. Рассмотрена защита откосов выемок при помощи устройства временных нагорных канав. Выполнена работа по формированию валиков из инертного материала.
Устройство морозозащитного слоя основания из песчаного грунта на участке автомобильной дороги
Authors: Дормидонтова Т.В , Мощенко О.Р
Published: July 2023

В статье рассматривается устройство морозозащитного слоя основания. Представлена конструкция дорожной одежды на экспериментальном участке. Показаны виды контролируемых работ. Проанализированы работы в зимний период времени. Приведен оптимальный вариант на устройство морозозащитного слоя основания из песчаного грунта, на анализируемом участке автомобильной дороги.
Комплексное воздухоочистительное устройство – российские и зарубежные технологии, вопросы импорт замещения
Authors: Зиятдинова А.Р , Ляпин А.И.
Published: July 2023

В данной работе были приведены особенности работы комплексных воздухоочистительных устройств (КВОУ), применяемых в составе газотурбинных установок и парогазовых установок. В работе представлены характеристики продукции в области фильтрующих материалов российских и зарубежных технологий производства элементов КВОУ.
Проблемы защиты электрических сетей и современные методы защиты
Authors: Малѐва Д. Д , Сафронова И.Г
Published: July 2023

В статье рассмотрены вопросы, связанные с проблемами электрических сетей, их современных методов и принципов обеспечения безопасности, а также основные преимущества и недостатки защитных аппаратов от перенапряжений. Защита электрических сетей необходима для обеспечения безопасности людей и оборудования, предотвращения перебоев в электроснабжении и поддержания надежности электрической сети. Именно поэтому крайне важно исследовать и разрабатывать современные методы защиты, которые могут эффективно решать проблемы различного рода возмущений (перенапряжение, короткое замыкание, влияние атмосферных явлений и т.д.), и обеспечивать стабильность электрической сети. В целом, тема данной статьи имеет решающее значение для обеспечения безопасной, надежной и устойчивой работы электрических сетей, что необходимо для нашего современного образа жизни
Digitisation of higher education and research: Raising inclusivity and equity issues for indigenous students
Authors: Gumbo Mishack
Published: July 2023

This conceptual article critiques digitisation of higher education and research as it relates to inclusivity and equity for indigenous students. I argue that indigenous students’ access to education is not limited to indigenisation of their learning, knowledge and research; it is more about what they learn and how they learn it through technology – information and communication technology (ICT) and online platforms. These students are excluded and do not enjoy equal educational opportunities when digitising their learning and knowledge does not relate to their cultural contexts. In addition, innovative projects and programmes which are insensitive to the dynamics of indigenous knowledge further make indigenous knowledge vulnerable to colonial practices. This article contributes insights into the vulnerability of indigenous students and institutions of higher learning being uncritical of the digitisation of their learning, knowledge, and research. The article will conscientise institutions of higher learning to digitise learning and research from a truly transformational perspective.
English first additional language learning and teaching with digital resources
Authors: Shandu-Omukunyi Nonhlanhla
Published: July 2023

This paper investigates the learning and teaching of English as a first additional Language (EFAL) using digital resources. It was a qualitative study conducted in a Grade 10 township classroom in the Western Cape, South Africa. Data were collected through observation of a traditional classroom, a computer laboratory and a media room. In addition, using semi-structured interviews, an EFAL teacher, the head of department for languages and the school principal, were interviewed. The research aimed to understand whether the pedagogical digital literacy practices and the use of digital resources enhance the learning of EFAL. In South Africa, English is the language of learning and teaching (LoLT) for the majority of learners that are non-English speakers. Through the lens of computer assisted language learning (CALL) theory and Technological Pedagogical Content Knowledge (TPACK), this article argues that the integration of technology helps teachers to deliver the EFAL content in a flexible and enhanced way. The findings reveal that teachers who teach in impoverished backgrounds and in other languages need to be equipped with digital literacy skills. These skills will address the challenges of literacy currently faced by the country. In conclusion, the amalgamation of an e-education policy with the ...
The Impact of COVID-19 on Ophthalmology Practice: Changes and Controversies in Endophthalmitis Risk
Authors: Riazi Mohammad
Published: July 2023

This is an Editorial and does not have an abstract. Please download the PDF or view the article in HTML.
A Novel and Low-cost Approach for Intravitreal Injection in an Experimental Model of Endophthalmitis
Authors: Rudraprasad Dhanwini , Gandhi Jaishree , Naik Poonam , N Naik Milind , Naidu Chenchu , Kumar Mishra Dilip , Joseph Joveeta
Published: July 2023

Purpose: Animal models are necessary in understanding the pathogenesis of endophthalmitis and are also necessary to assist the development of new therapeutics for this sight-threatening ocular inflammation. Hamilton syringes are usually preferred to inject pathogens when performing experiments on test subjects, however, this method has technical and financial disadvantages. In this study, we report the findings and assess the related benefits of applying a novel low-cost intravitreal injection technique to initiate endophthalmitis in a mouse model while using the Eppendorf tip and a 26G needle.
Methods: The 18-hr culture of clinical isolates of bacteria (Staphylococcus aureus and Pseudomonas aeruginosa) and fungus (Aspergillus flavus and Candida albicans) were resuspended to a final concentration of 10,000 colony forming units (CFU)/1 µL which were separately injected intravitreally into C57BL/6 mice (6–8 weeks) using a 0.1–2.5µL pipette attached to the modified Eppendorf tip with a 26G needle. The contralateral eye served as vehicle/uninjected control. Disease progression was determined by assessing the corneal haze, opacity, bacterial burden, and retinal histology of the eyes used in the model. Following euthanization, bacteria-infected mice were enucleated after 24 hr of the initial injection, and fungus-infected mice after 72 hr.
Results: Of the 50 mice injected, the modified technique was successful in 48 mice. Two mice were excluded due to cataract formed by accidental injury to the lens. The experimental endophthalmitis mice model successfully mimicked the natural clinical course. Clinical assessment and histopathology confirmed the influx of inflammatory cells into the posterior segment of the eye along with dissolution of retinal architecture.
Conclusion: Our novel method of injection using a modified Eppendorf tip and 26G needle yielded a cost-effective mouse model of clinical endophthalmitis, resulting in reproducible infection for understanding various aspects of its pathobiology.
Intravitreal Injections and Face Masks: Endophthalmitis Risk Before and During the COVID-19 Pandemic
Authors: Karimi Saeed , Nikkhah Homayoun , Mohammadzadeh Amir , Ramezani Alireza , Ansari Iman , Nouri Hosein , Abtahi Seyed-Hossein
Published: July 2023

Purpose: To assess the added risk of acute endophthalmitis after intravitreal injections associated with the widespread use of face masks during the COVID-19 pandemic.
Methods: In this retrospective, single-center study, records of patients with acute endophthalmitis following intravitreal bevacizumab (IVB) injections during the pre-COVID era—that is, March 1st , 2013 to October 31st, 2019 —and the COVID-19 era—that is, March 1st, 2020 to April 1st, 2021 —were reviewed and compared.
Results: A total of 28,085 IVB injections were performed during the pre-COVID era; nine eyes of nine patients developed acute post-IVB endophthalmitis in this era, giving an overall incidence of 0.032% (3.2 in 10,000 injections). In the COVID era, 10,717 IVB injections were performed; four eyes of four patients developed acute post-IVB endophthalmitis in this era, giving an overall incidence of 0.037% (3.7 in 10,000 injections). The incidences of post-IVB endophthalmitis during these two eras were not statistically significantly different (P = 0.779).
Conclusion: Face masking protocols seem unlikely to impose any additional risk of post-IVB endophthalmitis.
Bilateral Giant Full Thickness Macular Holes: An Infrequent Manifestation of Alport Syndrome
Authors: Karimi Saeed , Mohammad Bagheri Rafsanjani Niloofar
Published: July 2023

Purpose: To report a case of Alport syndrome presenting with bilateral giant full-thickness macular holes, hypertensive chorioretinopathy, and exudative retinal detachment.
Case Report: A 20 year-old man, a known case of Alport syndrome on hemodialysis, was referred to our clinic with bilateral vision loss initiated about 10 years prior to presentation, which exacerbated in the month prior to our visit. Bilateral large full-thickness macular holes, hypertensive chorioretinopathy, and exudative retinal detachment were detected in fundus examination. The patient had previous genetic counseling confirming the diagnosis of Alport syndrome. During follow-up, macular holes were covered with a thick epiretinal membrane and visual acuity decreased progressively in two weeks. Pars plana vitrectomy was performed in the right eye. Two weeks following surgery, the macular hole was closed and visual acuity improved significantly.
Conclusion: Bilateral giant full-thickness macular holes are uncommon presentations of Alport syndrome. The retinal findings may be caused by an inefficient type IV collagen presenting in the Bruch’s membrane and in the internal limiting membrane. Pars plana vitrectomy can be considered to repair macular holes in these patients.
Diffuse Pigment Release in a Patient Undergoing Tumor-Infiltrating Lymphocyte Immunotherapy for Acral Malignant Melanoma
Authors: Kerley Madison , Piri Niloofar , Ramasubramanian Aparna
Published: July 2023

This is a Photo Essay and does not have an abstract. Please download the PDF or view the article in HTML.
''Should the child be raised as male or female?'' The evaluation and management of different causes of ambiguous genital appearance in children
Authors: AL KHANJARİ Salma , AL BALUSHİ Malak Saleem , KANOJİA Ravi Prakash , AL SAJWANİ Mohammed Jaffer
Published: July 2023

Diagnosing, managing and assigning gender for different causes of ambiguous genitalia in children can be challenging. This article will discuss about the types, diagnosis and treatment of disorders of sex development including congenital adrenal hyperplasia, 46 XY mixed gonadal dysgenesis and 46XY ovotesticular disorder of sex development. This article reports about 3 cases of disorders of sex development. The first case is about a three-year-old girl who was diagnosed with congenital adrenal hyperplasia, genital examination revealed clitoromegaly and a single urogenital sinus; she was managed medically and surgically. The second case is about a one-month-old child with 46XY karyotype, genital examination revealed penoscrotal hypospadias with right palpable and left impalpable gonads. Patient underwent diagnostic laparoscopy in which both female and male internal organs were found; based on these results a diagnosis of 46XY ovotesticular disorder of sex development was made. The third case is about a 3-month-old child with 46XY karyotype, genital examination revealed hypospadias with bilateral impalpable gonads. Diagnostic laparoscopy showed a uterus with a bilateral ovary-looking gonad; histopathology of the bilateral ovary-looking gonads was consistent with testicular tissue. Based on the above, a diagnosis of 46XY mixed gonadal dysgenesis was made. Disorders of sex development are classified into three main categories based on the karyotype, XX, XY and sex chromosome other than XX and XY. Laboratory investigations, karyotype, genetic analysis, imaging, surgery and tissue biopsy, all aid in diagnosing, deciding gender identity and managing different types of disorders of sex development.
Iatrogenic Skull Base Defect Accompanied by Brain Injury After Endoscopic Sinus Surgery: A Report of Two Cases
Authors: Kim Taegyeong , Go Junyong , Yu Myeong Sang
Published: July 2023

Although iatrogenic skull base injuries after endoscopic sinus surgery (ESS) are rare (overall complication rate, 0.5%), they can be fatal or cause significant morbidity. Conventionally, skull base injuries were repaired using an external approach. However, in recent years, most skull base injuries after ESS have been repaired using an endoscopic transnasal approach due to its lower morbidity, lower risk of postoperative complications, and shorter hospital stay. We report two cases of iatrogenic skull base injury accompanied by brain injury following ESS and describe the skull base repair techniques employed for each case. In both cases, the skull base defects were successfully repaired using an endoscopic transnasal approach, although craniotomy was also performed in the first case to remove bone fragments from the right frontal base and lateral ventricle. Both patients recovered without residual neurologic deficits.
Discovering the Relationship Between Big Data, Big Data Analytics, and Decision Making: A Structured Literature Review
Authors: Di Berardino Daniela , Vona Simone
Published: July 2023

This paper focuses on providing a structured literature review on the role of Big Data (BD) and Big Data Analytics (BDA) in supporting decision making. The study aims to systematize the knowledge, the primary results, and research gaps related to BD and BDA in strategic management and in decision making by providing a future research agenda. Adopting the methodology of Massaro et al. (2015), the structured literature review investigates this phenomenon analyzing a sample of 97 articles published in high-level scientific journals ranked in ABS list in the Marketing, Strategic Management, Ethics, Gender, and Social Responsibility area. Bibliometric analysis, content analysis, and the PRISMA protocol have been used for the review. The study unveils the subject of decisions, factors influencing good decisions, and the main effects of using BD and BDA in decision making. New organizational factors, data chain dynamics, and inhibitors should be explored to remove the obstacles in decision making. The relationship between BD/BDA and decision making remains underexplored in public organizations, non-profit organizations, and small and medium-sized firms.
Tendances technologiques de la Transformation Digitale des Administrations Fiscales à l’Echelle Internationale : Revue de Littérature et Etat des Lieux cas du Maroc
Authors: Houda El Haddad , Chafik Khalid , Mghizou Hasnae
Published: July 2023

Le présent papier vise à établir une synthèse de revue de littérature sur la problématique de la transformation digitale de l’administration fiscale en citant d’une part les principales tendances technologiques des administrations fiscales à l’échelle internationale ; en effet, il a été choisi des expériences réussies de quatre pays (Kenya, Australie, Espagne, Singapour); et d’autre part mettre la lumière sur les grands projets de la direction générale des impôts marocaine relatifs au chantier de la transformation digitale. Les sources ont été collectées par le biais d’une méthode dite strategic mapping structure (SMS). Pour garantir l’aspect actualité du travail, les résultats de la recherche retenus sont ceux qui sont publiés sur les dix dernières années (2012-2022). Cette revue de littérature aide à découvrir la recherche sur la transformation digitale au Maroc, permettra par la suite de cerner les obstacles/facteurs de succès de ce chantier cas de l’administration fiscale marocaine, objet de prochain travail.

 

This paper aims to present a literature review on the issue of digital transformation in tax administration. Citing, on the one hand, the main technological trends of tax administrations on an international scale, four countries' experiences have been selected (Kenya, Australia, Spain, and Singapore). On the other hand, to highlight the major projects of the Moroccan tax administration. The sources were collected using a methodology known as strategic mapping structure (SMS). To guarantee the topicality of the work, the research results selected are those published over the last ten years (2012-2022). This literature review will help to discover the research on digital transformation in Morocco, and will then enable us to identify the obstacles/success factors of this project in the case of the Moroccan tax administration, the subject of the next work.
Experiences From a Multi-National Course in Cybersecurity Awareness Raising
Authors: AMEEL Hans , DECAVELE Tom , EECKHOUT Claudia , van der HEIDE Josha , LOHNER Daniela , van der PLOEG Bram , RIETBERG Wim , STEINER-CARDELL Andrea , TJOA Simon , KOCHBERGER Patrick , KÄVRESTAD Joakim , LUH Robert
Published: July 2023

The European Union (EU), as well as the entire world, is facing emerging challenges in the cybersecurity domain. Two of the most prominent challenges are citizens’ cybersecurity awareness which is the first line of defense against cybersecurity incidents, and the cybersecurity skill gap expected to lead to a future shortage of cybersecurity professionals. This paper presents an effort to combat those issues through the implementation of an intra-European course on cybersecurity awareness. The course engages university students from four EU member states who learn about increasing cybersecurity awareness while practically developing cybersecurity awareness activities for preadolescents. The paper provides an overview of the course and lessons learned from implementing it in international cooperation. The intention is to provide a guide for the development of such courses and outline success factors others can adopt and pitfalls that should be avoided.
Human Element in Cybersecurity. Strategies for Building a Stronger and More Secure Workforce
Authors: SMAJIĆ Nermin
Published: July 2023

Today, many businesses, organizations, and individuals rely on the internet for operations, communications, and transactions. As such, cybersecurity has become a major concern, as it is the key to protecting sensitive data and protecting against potential cyberattacks. Resilient companies understand the importance of cybersecurity, and leverage key pillars of cybersecurity to ensure their security and resilience. This article will highlight what cybersecurity is and how resilient companies leverage it, highlight the benefits of resilient cybersecurity, and some possible strategies for improving resilience.
Teletriagem de enfermagem no âmbito da saúde mental e psiquiátrica num serviço de saúde privado português
Authors:   Escola Superior de Saúde Santa Maria, Gomes Aramid , Leão André ,   Hospital da LUZ Digital, Oliveira André ,   Centro Hospitalar Universitário de Santo António, Ferreira Cláudio ,   Hospital da LUZ Digital, Moura Diogo ,   Hospital da LUZ Digital, Ramos Sílvia ,   Hospital da LUZ Digital
Published: July 2023

Introdução: Teletriagem compreende a avaliação remota preliminar de sinais e sintomas e a orientação do cliente para o cuidado de saúde adequado (emergente, urgente ou não urgente). A LUZ24 abrange a vídeoconsulta e a teletriagem, sendo esta última efetuada exclusivamente por enfermeiros, integrando enfermeiros especialistas em Enfermagem de Saúde Mental e Psiquiátrica. Objetivo: Mapear os resultados da atividade em teletriagem realizada por enfermeiros da LUZ24, no âmbito da saúde mental e psiquiátrica. Método: Análise documental que partiu da questão: Quais são os resultados da atividade em teletriagem, realizada por enfermeiros da LUZ24, no âmbito da saúde mental e psiquiátrica. Seguiram-se as diretrizes Strengthening the Reporting of Observational Studies in Epidemiology (STROBE). Estudo desenvolvido a partir da análise da base de dados de registos clínicos eletrónicos Oracle BI Publisher relativamente às teletriagens efetuadas no período entre janeiro de 2020 e dezembro de 2021. A análise e tratamento dos dados foi efetuada com recurso à ferramenta do Microsoft Excel versão 2021, tendo sido utilizadas medidas de estatística descritiva para a caracterização da amostra e para os dados clínicos. A investigação foi aprovada pela Comissão de Investigação e Comissão de Ética Competente do Hospital da Luz. Resultados: Do total de 63396 teletriagens do âmbito geral, foram analisadas 1005 (1,59%) no âmbito da saúde mental. A amostra é predominantemente feminina (64,78%), com idade média de 50,41 anos. A teletriagem foi realizada com recurso a algoritmos de tomada de decisão, designados de protocolos. Foram utilizados 10 protocolos, sendo os três mais prevalentes: Ansiedade ou crise situacional (47,16%), Insónia (26,77%) e Doença mental (14,33%). A orientação para a consulta foi o encaminhamento mais prevalente (63.98%). Conclusões: A teletriagem realizada por enfermeiros peritos - treinados na avaliação clínica remota e com recurso a protocolos - possibilitou a avaliação de sintomatologia no âmbito da saúde mental e psiquiátrica e o encaminhamento dos clientes.
Saúde mental dos jovens do ensino secundário da ilha da madeira: fatores de vulnerabilidade e proteção
Authors:   Escola Superior de Enfermagem do Porto, Ribeiro Isilda , Freitas Otília ,   Universidade da Madeira-ESS, Sousa Gilberta ,   Escola Superior de Enfermagem do Porto, Carvalho José Carlos ,   Escola Superior de Enfermagem do Porto, Sequeira Carlos ,   Escola Superior de Enfermagem do Porto, Pires Regina ,   Escola Superior de Enfermagem do Porto
Published: July 2023

Introdução: Estudo centra-se no conhecimento da literacia e da saúde mental positiva, em jovens do ensino secundário. Objetivos: Identificar os fatores de vulnerabilidade e proteção de jovens do ensino secundário na ilha da Madeira. Metodologia: Investigação quantitativa, descritiva. Estudo piloto realizado na ilha da Madeira, com estudantes do ensino secundário (n=1948), idades entre 15-18 anos, mediante consentimento informado dos participantes e encarregados de educação. Colheita dados: “Questionário de Literacia e Saúde Mental Positiva”, versão Estudantes do Ensino Secundário (QSM+VEESec) (Ribeiro, Sequeira, Ferreira, Carvalho e Pires, 2018). Aplicação online entre março/junho 2021. Resultados: Os resultados mostram relevância entre fatores de vulnerabilidade e proteção na saúde mental. Verificou-se que 9,9% dos estudantes referiu ter alguns problemas de saúde mental; 9,3% recorreu a algum serviço de saúde devido a problema saúde mental; 29,7% referiu ter tido ou ter algum acompanhamento psiquiátrico. Dos fatores vulnerabilidade salienta-se: 42,4% não está satisfeito com seu sono; 46,1% considera não dormir horas suficientes para suas necessidades; 4,5% e 4,8%, respetivamente toma medicação regular para dormir e para algum problema saúde mental; 48,6% não pratica exercício físico regular. Dos possíveis fatores protetores, verifica-se que apresentam fracos indicadores, nomeadamente: 78,2% não participa em atividades recreativas; 43,7% não está satisfeito com sua relação afetiva e consomem substâncias (bebidas alcoólicas: 26,4% e drogas mais de três vezes por semana 3,4%). Conclusão: Os jovens apresentam problemas de saúde mental: ansiedade, depressão, consumos álcool, substâncias ilícitas. Destaca-se a falta de interação social, a ausência de participação em atividades recreativas e insatisfação nos relacionamentos afetivos.