bluuebunny/crossref_metadata_2025 huggingface dataset:
Selection of Weight Coefﬁcients of Quadratic Quality Functional in Solving ADOC Problem in the Letov—Kalman Formulation
Authors: Lovchakov V. I.
Published: March 2023

For linear stationary one-dimensional control objects, the inverse problem of analytical design of optimal controller (ADOC) is considered, which consists in determining the weight coefficients of the quadratic functional of the optimality of the control process, providing a closed control system with the set values of primary quality indicators (static error, transient time and overshoot). It is analyzed in relation to both the ADOC problem in the Letov-Kalman formulation. A method of its solution is proposed based on the transformation of the ADOR problem to a canonical form in which the control object is described by a matrix differential equation in the Frobenius form, and the quality functional is defined as an integral of the sum of the products of the canonical phase coordinates of the object with the corresponding weight coefficients, as well as the square of the control signal. It is shown that the solution of the inverse canonical ADOC Letov-Kalman problem is determined by the values of only three non-zero weighting coefficients of the criterion, and one of them has a single value. The values of the other two coefficients are proposed to be found in the process of modeling the synthesized optimal control system from the conditions of ensuring for it the values of primary quality indicators no more than the specified ones. The results obtained, presented in the form of Theorems 1 and 2, are extended to the synthesis of astatic control systems, in which an additional integrator is connected to the plant output to obtain astaticism. Since such an "extended" control object is described using a state vector that has the first two phase coordinates of the canonical form, the synthesis of the optimal system is carried out without converting the object description to the canonical form of the phase variable and vice versa. The construction of an astatic control system is illustrated by an example.
Method of Precise Irrigation and Fertilization Using a Group of Autonomous Robotic Agents
Authors: Iakovlev R. N.
Published: March 2023

Today, climate change, the limited availability of natural resources, coupled with an increase in total consumption, constantly increase the requirements for agricultural facilities. One of the urgent tasks in the field of robotic agricultural automation systems is the task of developing methods and approaches to precise irrigation and fertilization, characterized by a high level of autonomy, a wide working area and the ability to perform tasks in a continuous mode. Thus, within this study, a method of precise fertilizer application was proposed, based on the use of a group of heterogeneous robotic means. The heterogeneous composition of the system provides the possibility of replacing batteries and replenishing the solution tanks of the robotic means, which carry out the application of fertilizers in the areas of operations through the use of specialized ground robots. Approbation of the proposed method was carried out in the Gazebo virtual environment on the example of a garden of columnar apple trees with an area of several hectares, which includes more than 8000 trees. The final consolidated assessment of the proposed solution, averaged over all selected groups of tasks, was 74.6 %. The average proportion of trees missed in the experiment was: 7.8 %. According to the results of the experiment, the proposed solution allows not only to successfully carry out the tasks of fertilizing large agricultural facilities in a continuous mode of operation, but also to carry out autonomous identification of potential zones where fertilization is required.
Sosyal Bilimlerde Büyük Veri Analitiği, Yapay Zeka ve Makine Öğreniminin Kullanımı
Authors: METE Mevlüt Hürol
Published: March 2023

Teknolojinin gelişimi ile birlikte sosyal bilimler alanında çalışan araştırmacılara sunulan araç ve tekniklerin sayısı artmaktadır. Büyük hacimli verilerin araştırmalara kolaylıkla entegre edilebilmesine imkan veren ve bu verilerin en doğru ve hızlı şekilde yorumlanmasını sağlayan büyük veri analitiği, yapay zeka ve makine öğrenimi gibi teknikler artık sosyal bilimler alanında daha yaygın biçimde kullanılmaktadır. Bu çalışmanın amacı, günümüz dijital dönüşüm araçları olarak kabul edilen büyük veri analitiği, yapay zeka ve makine öğrenimi gibi kavramların sosyal bilimler araştırmalarındaki kullanım alanlarının belirlenmesi ve bu araçların araştırmacılara sunduğu imkanların tanıtılmasıdır. Bu kapsamda uluslararası alanda yayınlanmış nitelikli araştırmalar incelenerek, söz konusu araçların sosyal bilimler alanındaki bilimsel araştırmalara nasıl uygulandığı, araştırmacılara ne gibi fayda ve avantajlar sağladığı ve gelişim trendleri ile ilgili bir derleme sunulmaktadır. Çalışmada ayrıca söz konusu araçların kullanımından kaynaklı potansiyel sorunlar ele alınarak uluslararası örnekler bağlamında konu tartışılmaktadır.
Otel Endüstrisinde McDonaldlaşma ve Disneyleşme: Tatil Otelleri Üzerine Kavramsal Bir Değerlendirme
Authors: ŞANLIÖZ ÖZGEN H. Kader
Published: March 2023

Bu çalışmanın amacı, modern üretim, tüketim ve kültür pratiklerini değerlendiren yaklaşımlar arasında olan ve sosyoloji araştırmacısı George Ritzer tarafından ortaya koyulan McDonaldlaşma ve Disneyleşme kavramlarını otel endüstrisi bağlamında incelemek ve bu kavramları endüstrinin ve alışkanlıkların sürdürülebilir gelişimi açısından akademik mecrada tartışmaya açmaktır. Ritzer, endüstriyel toplum dinamiklerini McDonaldlaşma kavramı ile açıklarken, Disneyleşme kavramını da tartışarak modern toplum tespitlerini bu iki temel üzerinden yöneltmektedir. Bu tespitler doğrultusunda bu çalışmada McDonaldlaşma ve Disneyleşme perspektifinden otel endüstrisinin günümüzdeki hacmine ulaşmasını sağlayan bir örnek olarak her şey dahil hizmet veren tatil otelleri irdelenmektedir. Çalışmanın odağı, Türkiye’de otel kapasitesi ve yoğunluğu, otellerde kalış ve geceleme sıklığının en yüksek olduğu il olan Antalya’daki her şey dahil tatil otelleridir. Bu işletmelerin McDonaldlaşma ve Disneyleşme kapsamında değerlendirebilecek özellikleriyle ilgili detaylı bilgiler verilmektedir.
El trabajo como un factor de riesgo en la Enfermedad Pulmonar Obstructiva Crónica (EPOC) y otras patologías respiratorias. Revisión narrativa de literatura
Authors: Mejía Argüello Jairo Emilio , González Ángel Lilian Alejandra
Published: March 2023

Introducción: Las actividades laborales, especialmente aquellas relacionadas con la manufactura y procesamiento de múltiples materiales necesarios para la producción de bienes, conllevan riesgos para la salud de los trabajadores. La Enfermedad Pulmonar Obstructiva Crónica-EPOC es una condición respiratoria que afecta a diversos grupos laborales. La evidencia investigativa reciente indica que dentro de los factores de riesgo asociados al desarrollo de la EPOC es necesario considerar el tipo de trabajo, trascendiendo la clásica atribución causal al hábito de fumar. La frecuencia como una de las tres primeras causas de morbilidad y los impactos por carga de enfermedad en lo social, económico y laboral ameritan un conocimiento actualizado de la relación existente entre el trabajo y la EPOC.
Métodos: Se realizó una revisión narrativa con 59 estudios publicados en español e inglés en PubMed, Science Direct, Scopus,  SCIELO y Web of Sciences, entre los años de 2004 a 2022 empleando como criterios de búsqueda enfermedad respiratoria laboral, trabajo y EPOC, factores de riesgo laborales.
Conclusión: Diversas actividades laborales poseen asociación causal con la EPOC, por lo cual se requiere mejorar los criterios diagnósticos tempranos en las personas con síntomas respiratorios, indagando por el tipo de trabajo, sus características, manipulación de sustancias y tiempo de exposición a ellas, ya que existe subregistro de su incidencia y precariedad diagnóstica, aun disponiendo de procedimientos diagnósticos y terapéuticos pertinentes al manejo adecuado de la patología.
Estrés y representación del confinamiento por la COVID-19, en ciclistas profesionales del Valle del Cauca
Authors: Lasso López Edward Andrés , Vivas-Manrique Samuel David , Ordoñez Hernandez Cecilia Andrea
Published: March 2023

Objetivo: Identificar el nivel de estrés y las representaciones sociales asociadas al confinamiento generado por la emergencia sanitaria por Covid-19 en trabajadores ciclistas profesionales del Valle del Cauca en el año 2020.
Métodos: Se aplicó cuestionario en línea con la técnica de listado libre de palabras y la tercera versión del cuestionario para la evaluación del estrés del Ministerio de Trabajo de Colombia y la Pontificia Universidad Javeriana a 57 personas que trabajan como ciclistas profesionales. Los datos del listado libre se analizaron en el paquete estadístico Antrophac, bajo análisis prototípico y consensual de los datos y los datos de estrés con el paquete estadístico SPSS versión XXIII.
Resultados: se encontró que el 52.8% de los ciclistas presentan estrés con sintomatología predominantemente fisiológica como dolor muscular en cuello y espalda, dolor de cabeza y trastornos del sueño. Las representaciones asociadas al confinamiento se agruparon en 5 ejes principales: factores protectores, afectaciones emocionales y comportamentales, estresores, estrategias de afrontamiento, y cuidado de la salud de sí mismo y de otros. 
Conclusiones: Las palabras encierro, protección y restricción aparece en todos los deportistas. Aquellos que presentaron estrés o tendencia, también asociaron el confinamiento a aburrimiento y estrés; mientras que aquellos que no presentan estrés asociaron las palabas familia y aprendizaje.
Síndrome de visión por computadora. Una revisión de un problema ocular poco advertido.
Authors: Pachon Robles Cindy Alejandra , Maturín Cordoba David Antonio , Mena Rentería Alba Adriana , Copete Quinto Adriana Lucía , Castro Álvarez John Fredy
Published: March 2023

Introducción: Diversas manifestaciones principalmente visuales y musculoesqueléticas se han asociado a la exposición frecuente a pantallas de diferentes dispositivos electrónicos. Dichas afectaciones configuran el síndrome de visión por computadora (SVC), el cual impacta a alrededor de 60 millones de personas a nivel mundial y afecta significativamente el desempeño de sus labores cotidianas.

Objetivo: Revisar la literatura científica de los factores asociados al desarrollo del síndrome de visión por computadora y las medidas encaminadas a su manejo o prevención.

Materiales y Métodos: Revisión temática, donde se recopiló literatura científica en Pubmed, LILACS y SciELO, en idiomas inglés y español de los últimos 20 años, haciendo uso de querys de búsqueda con términos DeCS y MeSH.

Resultados: Se seleccionaron 50 estudios de 125 indexados, los cuales cumplían con los criterios de inclusión, de los que se obtuvo información valiosa sobre síntomas, factores asociados, datos epidemiológicos tanto globales como locales, conocimiento actual, medidas preventivas y tratamiento.

Conclusión: Alto número de estudios dan cuenta de la elevada prevalencia de síntomas asociados al SVC entre los usuarios de dispositivos electrónicos.  A su vez, se evidencia un gran déficit en conocimiento sobre el SVC, tanto en estudiantes como personal administrativo, lo cual podría llevar al desarrollo silencioso de la enfermedad. En Colombia, aún es insuficiente la investigación sobre este tópico. Con respecto, a las intervenciones preventivas se consideran esenciales para el mejoramiento de la sintomatología y así evitar que esta entidad se convierta en una problemática de salud pública.
Coexistencia de tuberculosis y diabetes Los médicos excepcionales no permiten excepciones
Authors: Yanguas Loaiza Maria Alejandra , Pacheco Lopez Robinson
Published: March 2023

La Diabetes (DM) y la Tuberculosis (TB) son enfermedades crónicas de amplia  distribución mundial y alto impacto  clínico, social y económico.
Diseño y simulación de una maquina compactadora de chatarra
Authors: Goicochea Ramírez Oscar Alberto , Cruz Balarezo Dayana , Lázaro Palacios Piero , López Ynca Diego , Saldaña Miranda David
Published: March 2023

El presente trabajo se realiza con el propósito de diseñar y elaborar una simulación de una maquina compactadora de chatarra para reciclaje, utilizando un chain transfer conveyor y sensores ópticos. Se busca lograr reducir la chatarra compactándola de una manera rápida y fácil, según su clasificación, los cual podrían darnos como resultados distintos detalles y/o información en cada uno de los diferentes tipos de reciclaje. Con esto se consigue una reducción de tiempos y demoras en el proceso, ya que todo estará programado. Se realizarán cálculos mecánicos, eléctricos, matemáticos y electrónicos para lograr a la elaboración de esta compactadora. La chatarra podrá ser de diferentes tipos, ya sean fierro, plástico y papel según la programación que se le dé. A sí mismo, se puede controlar la velocidad de las fajas transportadoras. La investigación es de carácter experimental porque se han desarrollado cada uno de los cálculos necesarios para llegar al resultado final de este proyecto.
El desarrollo de competencias matemáticas y el uso de instrumentos de evaluación
Authors: Núñez Cárdenas Jhoscelyn , Damián Núñez Edgar Froilán
Published: March 2023

En el presente artículo es el insumo del trabajo que tiene como propósito establecer el nivel de desarrollo de las competencias matemáticas por medio del uso de instrumentos de evaluación en estudiantes de sexto grado de educación primaria de una IE privada en el distrito de San Miguel de la ciudad de Lima en el año 2022, para lo cual se ha sometido a sesenta estudiantes a los cuales se les evaluó en pretest y postest; de los cuales treinta  estudiantes se les ha sometido a una intervención donde las principales herramientas fueron los instrumentos de evaluación; el pretest y postest fueron una lista de cotejo en la que se recogió la evidencia del desarrollo de competencias cuando los estudiantes desarrollan diferentes problemas de contexto intra y extra matemático; la investigación fue de tipo experimental, longitudinal con un diseño cuasiexperimental con un enfoque cuantitativo; luego del tratamiento estadístico; donde se estableció que las características del grupo control y del grupo experimental, que son similares al iniciar luego del experimento, muestran diferencias relevantes; así también, el grupo experimental muestra un desarrollo significativo antes y después del experimento; dicho desarrollo es significativo mostrando la eficiencia y efectividad del experimento.
The Impact of Negative Externality of Waste on The Coastal Beach of Lampung for The Community from an Islamic Economic Perspective
Authors: Kusuma Fanny Budhi , Pratama Habib Ali , Aulia Hermawan , Amrina Dania Hellin
Published: March 2023

The impact of negative coastal externalities in Lampung Bay has produced waste that pollutes the marine environment around the coast of Lampung Bay. Although it is not visible to the naked eye, residents feel negative impacts that have become serious problems that have not yet been entirely handled. This article aims to research, study and produce decisions regarding the externalities felt by the surrounding community regarding the impact of negative externalities generated from waste which is the source of all environmental problems in Lampung Bay, and what consequences they have from an Islamic economic perspective. In our research, the method used is field research carried out directly in the field based on population and sampling to determine the negative impact of waste on the community. Garbage is produced from a production process that inevitably has negative and negative externalities. The testimonies of residents, several magazines, and direct observations led this article to the conclusion that it is essential to conduct a particular study to decide which negative externality impact is more dominant regarding the causes of continued accumulation of waste from year to year as well as the factors and implications of problems related to waste in Lampung Bay.
The Effect of City/District Minimum Wages on Poverty Levels: A Case Study of the Special Region of Yogyakarta in 2010-2019
Authors: Prayoga Resafilian Dwi , Wardani Dyah Titis Kusuma , Hartarto Romi Bhakti
Published: March 2023

Poverty is still a complex economic problem in every country, especially in developing countries like Indonesia. One of Indonesia's provinces with a high poverty rate is the Special Region of Yogyakarta (DIY), which amounted to 11.44% in 2019. This figure is the highest in Java and even higher than the national poverty rate of 9.82%. The high level of poverty is in line with the regional minimum wage of the DIY Province, which is the lowest in Indonesia, which is less than Rp. 1.6 million per month. This study then analyzes the minimum wage at the poverty level in the Province of DIY. The method used in this research is panel data with Fixed Effect Model (FEM) for all districts/cities in DIY Province from 2010-2019. By controlling for variables such as economic growth, education, and health, the results of this study indicate that the minimum wage has a negative effect on poverty levels in the Special Region of Yogyakarta. Therefore, to accelerate poverty reduction in the DIY Province, the provincial and district/city governments must review the minimum wage calculation annually.
The Role of Women's Participation in Development: Empirical Evidence from Indonesia
Authors: Lorenza Della Gusvi
Published: March 2023

Improving the quality of human resources cannot be separated from the involvement of women. It is because increasing the capacity of women can encourage productive socio-economic activities as well as their capabilities and abilities in community institutions. This study then aims to determine how much women's involvement in government, employment, and household influences the Human Development Index in Indonesia. This study uses panel data analysis of 34 provinces in Indonesia from 2015 to 2020 with a fixed-effect model. The finding of this study is that there is no relationship between the involvement of women in parliament and the human development index. However, there is a positive and significant relationship between women's involvement as professionals and the human development index. The participation of women in the household has the most vital relationship with the human development index, where every 1% increase in the income contribution of women in the home is associated with an increase in the human development index of 1.64 points. Another finding from this study is that women who act as heads of families are associated with decreased human development index. It shows that women will play a more significant role in development as long as their part is not as the head of the family but as a supporter of the family economy.
School Meals Program and Its Impact Towards Student’s Cognitive Achievement
Authors: Nida Rahma , Sari Dwi Darma Puspita
Published: March 2023

Nutrition food is one of the factors influencing student academic development. By providing a good nutrition for children in school is one of the way to increase economy development in Indonesia. School meals program has important role in order to improve children participation and children performance in school. Some previous research founds that nutrition food ables to increase children cognitive. However, those have not taken into account the direct impact of school meals program on children cognitive. Therefore, this study aims to analyze the direct impact of school meals program toward children cognitive. The data was taken from Indonesia Family Life Survei (IFLS) wave 5. This study is conducting Propensity Score Matching method to knowing the impact of school meal program on children cognitive. The result shows that school meal program has impact to increase children cognitive score on mathematic. It shows that these program has impact on children score by 0.2 point higher than children in school without school meal program.
Culinary Tourism Menu Variation in Mandalika Lombok through Pizza Making Innovation with the Addition of Coconut Oil
Authors: Kanom Kanom
Published: March 2023

Mandalika Lombok is one of the super-priority tourism destinations in Indonesia. Culinary is one of the important elements needed by tourists, thus innovation and menu variations are needed. Pizza is one of the menus available at Mandalika Lombok, however, there are still not many variations. The availability of adequate and minimal use of Virgin Coconut Oil (VCO) is one of the considerations for making innovations, namely making pizza with the addition of Virgin coconut oil (VCO), as an alternative and a variety of culinary tourism menus in Mandalika Lombok. This study used a non-factorial randomized block design with organoleptic tests including hedonic quality tests and hedonic tests with concentrations of 0%, 50%, 75%, and 100%. The results of the analysis showed that the addition of Virgin coconut oil (VCO) had a significant effect on the Hedonic Quality Test (P0.05) and significantly affected the Hedonic Test (P0.05). The best treatment from the Hedonic Quality Test Results is T3 with a score of 4.20 and the best treatment in the Hedonic Test is T3 with a score of 4.46.
The ‘Expected Leadership’ in Indonesia’s Initiative to Form ASEAN Peacekeeping Centres Network
Authors: Julianto Farhan
Published: March 2023

Various International Relations works of literature positioned Indonesia as one of the leading countries in Southeast Asia, both formally and informally. Indonesia is considered a driving force behind various regional cooperations that lead to regional progress. This paper also sees that Indonesia is capable of initiating and pushing for cooperation in the peacekeeping area. Peacekeeping cooperation is sensitive in Southeast Asia, considering that one of the norms that mutually agreed upon since the formation of ASEAN is the norm of non-interference. The non-interference norms hinder regional peacekeeping cooperation due to its adoption of interventionist norms. Despite these organizational obstacles, Indonesia has successfully initiated peacekeeping cooperation that in the form of the ASEAN Peacekeeping Centres Network (APCN). The APCN aims to increase the contribution of peacekeeping forces from the ASEAN Member States in the UN Peacekeeping Missions. By looking at the case, this paper aims to explain why Indonesia was successful in initiating the APCN when the regional norm of non-interference is still adopted. This explanation will refer to the role theory, first theorized in International Relations by Kaleevi Jakko Holsti. Although the initiation of the APCN was also driven by foreign policy aspirations from the policymakers, another contributing factor was the regional expectations for Indonesia to lead the regional peacekeeping cooperation. This expectation is in line with Holsti’s concept of role prescription. Further understanding of the expected leadership could be an alternative perspective in seeing the success or failure cases of regional cooperation – especially in Southeast Asia – in the future.
Vibration-Based Discriminant Analysis for Pipeline Leaks Detection
Authors: Kamiel Berli Paripurna , Rukmana Indra
Published: March 2023

Pipelines are useful for transporting liquids from one place to another. The main problem that often occurs in pipelines is leakage which results in production and financial losses. The importance of detecting pipeline leaks makes the industries look for effective detection methods to avoid bigger losses. Several previous studies have proven that the vibration-based method is successful in detecting leaks in pipelines. However, the vibration-based method used in the previous study is relatively complicated and requires specialists to interpret the results. This study proposes a machine learning-based detection method that can classify pipe conditions directly without the help of a specialist. The proposed method is vibration-based discriminant analysis; a machine learning algorithm that recognizes pipeline conditions from their vibration pattern instead of spectrum. The proposed method was tested on a test rig consisting of a closed-loop pipeline equipped with a leak-pipe test segment. The vibration signal is taken using an accelerometer placed on the leak-pipe test segment. Time domain vibration data is extracted using several statistical parameters which aims to reveal information related to pipe conditions. The vibration data collected is divided into two groups, namely training-data and testing-data. The discriminant analysis model is trained to recognize the vibration pattern of the pipeline using training-data and then tested using testing-data. There are four leak sizes introduced in this study, small, medium, and large. Meanwhile, normal condition (no leaks) is used as benchmarking. The study shows that the proposed method is effective in classifying four pipe conditions with the accuracy up to 95%.
Air Two-Phase Flow Void Fraction – Water and Oil Emulsion on Mini Pipe with a slope of 600 Against Horizontal Position
Authors: Sukamta Sukamta
Published: March 2023

The utilization of two-phase or multi-component flow in mini pipes is often found in the industrial world, such as mini evaporators, mini heat exchangers, etc. Multi-component flow can also be found in the biomedical, such as in the human circulatory system through vessels. An important parameter in a two-phase flow is the hollow fraction since this parameter significantly affects the flow pattern, which affects pressure fluctuations. Therefore, this study aims to obtain primary experimental data on the vacuum fraction, specifically in the air flow-water and oil emulsions with concentrations of 350 mg/dl and 500 mg/dl at an inclination of 60o to the horizontal. The study used a glass pipe with a diameter of 1.6 mm and a length of 160 mm. Data were captured using a high-speed camera at a gas superficial velocity (JG) = 0.083 m/s - 74.604 m/s and the superficial velocity of the liquid (JL) = 0.041 m/s - 4.145 m/s, and processed using MATLAB R2014a software.  The results showed that the difference in the concentration of water and oil emulsions significantly affects the void fraction value, thus affecting the flow pattern. This case is because the difference in the concentration of water and oil emulsions affects the viscosity value, ultimately affecting the liquid's superficial velocity. Similarly, the slope of the pipe 60o to the horizontal affects the flow pattern that occurs; this is because the slope of the pipe will cause the influence of gravitational acceleration on the value of the superficial velocity of gases and liquids, although not very significant. The rise and fall of the gas's superficial velocity and the liquid's superficial velocity affect the value of the hollow fraction. More plug, slug-annular, annular, and churn flow patterns were identified than bubbly flow patterns, which is why the hollow fraction increased with the gas's superficial velocity and decreased with low superficial velocity. This kind of flow pattern needs to be watched out for because it has the potential to increase pressure significantly.
Determinan Persistensi Laba pada Perusahaan Sektor Kesehatan di Indonesia
Authors: Haerudin Didin , Jatnika Ika , Purwadi Ricky Ekaristy
Published: March 2023

Latar Belakang: Persistensi laba merupakan komponen dari kualitas laba yang memiliki kemampuan sebagai indikator untuk menentukan laba periode mendatang (future earning) yang dihasilkan secara terus menerus atau bersinambung dalam jangka waktu yang panjang. Persistensi laba ditunjukkan dengan nilai laba yang stabil untuk setiap periode. Namun pada perusahaan sektor kesehatan terjadi perubahan nilai laba yang signifikan dari satu periode ke periode lain. Hal tersebut memberikan suatu sinyal menandakan adanya laba yang tidak persisten.Tujuan: Tujuan penelitian ini untuk menguji pengaruh Volatilitas Penjualan, Volatilitas Arus Kas Operasi, Tingkat Utang dan Ukuran Perusahaan terhadap Persistensi Laba pada perusahaan sektor kesehatan terdaftar di Bursa Efek Indonesia.Metode Penelitian: Sampel yang digunakan yaitu sebanyak 10 perusahaan sektor kesehatan terdaftar di Bursa Efek Indonesia yang diperoleh dengan teknik purposive sampling. Teknik analisis data yang digunakan yaitu regresi data panel dengan program EViews 10.Hasil Penelitian: Hasil penelitian ini menunjukkan bahwa Volatilitas Penjualan dan Volatilitas Arus Kas Operasi tidak berpengaruh terhadap Persistensi Laba, Tingkat Utang berpengaruh negatif signifikan terhadap Persistensi Laba, serta Ukuran Perusahaan tidak berpengaruh terhadap Persistensi Laba pada perusahaan sektor kesehatan yang terdaftar di Bursa Efek Indonesia tahun 2016-2021.Keaslian/Kebaruan Penelitian: Penelitian terkait persistensi laba dengan sampel perusahaan sektor kesehatan masih jarang ditemukan. Penelitian ini dapat memberikan informasi baru mengenai persistensi laba pada perusahaan sektor kesehatan di Indonesia serta faktor-faktor yang mempengaruhinya. Penelitian ini menggunakan teknik analisis data panel dengan alat uji statistik yang lebih terbaru dari penelitian sebelumnya yaitu EViews 10.
Knowledge and practice of the ideal birth interval amongst parturients attending primary health centre Aluu, Rivers State, Nigeria
Authors: Kasso Terhemen , Ezebuiro Emmanuella Ijeoma
Published: March 2023

Background: Birth interval is a period for the mother to heal completely from the events of pregnancy. Short birth interval (<24 months) is associated with grave consequences on maternal and child health and the impact is more on families with poor socioeconomic status. Aim was to assess the knowledge and practice of ideal birth interval amongst parturients at primary health centre- Aluu.
Methods: This was a descriptive cross-sectional study to assess the knowledge and practice of ideal birth interval and its health benefits among parturients attending primary health centre, Aluu in September, 2021. The data was collected using structured self-administered questionnaires, analysed with SPSS version 23.0 and presented in tables and charts.
Results: Knowledge of ideal birth interval among the respondents was 68.3%. Regarding its benefits, 34.2% of the respondents knew that it replenishes lost nutrients, 20.2% knew it prevents anaemia, 24.7% knew it improves pregnancy outcome while 67.7% knew that it helps in financial planning. Only 42.86% of the respondents practised ideal birth interval, 47.6% had discussed it with their health worker and 89.1% said it should be included in the routine antenatal teachings. Many (41.8%) of the respondents did not use any form of contraception.
Conclusions: There was poor knowledge of the health benefits of ideal birth interval and less than half of the respondents practiced ideal birth interval and contraceptive use. Therefore, there is need for more education by health care workers on ideal birth interval and its benefits and the use of modern contraceptive methods during routine antenatal teachings.
A comparative study to assess the efficacy of oral versus vaginal route of misoprostol in missed first trimester abortion
Authors: C. R. Vijaykumar , C. Asha
Published: March 2023

Background: Aim of the study to contrast the effectiveness of misoprostol taken oral vs vaginal method, for the management of missed abortion in the early trimester, and to acknowledge misoprostol value in cervical dilatation before any surgical pregnancy termination,
Methods: Comparing the efficacy of misoprostol, by vaginal and oral routes, for termination of first trimester missed abortion was conducted in the department of obstetrics and gynaecology, at DR B. R. Ambedkar medical college and hospital, Bangalore. 2 groups were made as group A and group B which had 24 participants in each group and a total of 48 participants, in which group A was given misoprostol 400 mcg orally, maximum up to 3 doses and group B was given misoprostol 400 mcg maximum up to 3 doses and outcome was documented. Primary outcome expecting drug-induced complete expulsion of products of conception (POCs). Secondary outcomes measured were induction expulsion interval, number of doses required, classification of failures, cervical canal permeability in women requiring surgical evacuation, side effects.
Results: Both oral and vaginal routes are highly effective (oral=75%, vaginal=91.7%, p=2.400), safe and acceptable with tolerable side effects. The mean time to expulsion was longer (10.55 hours) in the oral than vaginal group (8.09 hours). All unsuccessful cases, 2 in vaginal group and 6 in oral group had permeable cervices prior to surgical evacuation. Most of the side effects were tolerable in both groups.
Conclusions: Vaginal route of misoprostol is more effective than oral misoprostol for first trimester missed abortion.
Evaluation of screening efficacy of IL6, IL8, CRP and salivary progesterone in predicting preterm pregnancy
Authors: Jyothi V. Jeevana , Farheen S. K. Nafeesa , Deepthi M. , Swapna L.
Published: March 2023

Background: According to WHO preterm birth defined as births occurring before completion of 37 weeks, in a pregnancy beyond 20 weeks of gestation. As reported by W.H. O preterm birth has incidence of about 9.6% of all the live births, preterm births have high neonatal morbidity and mortality. In this review we look at association between CRP, IL6, IL8 and salivary progesterone in predicting the preterm delivery.
Methods: A hospital based prospective study to be conducted in a group of 100 women of 20- 24 weeks of gestation, they were analysed for IL6, IL8, CRP and salivary progesterone and followed them till delivery.
Results: On assessment of the biomarkers to predict the preterm and term pregnancy, we assessed for the blood level of CRP, IL6, IL8 and salivary progesterone among the pregnant women at 20-24 weeks of gestation and followed till the pregnancy outcomes. Among which 46% were with preterm pregnancy and 54% with term pregnancy during delivery. Among them, 20% had the previous preterm pregnancy and 80% were not. We found 70% with normal vaginal delivery, 24% with emergency LSCS and 6% with elective LSCS.
Conclusions: The present study documented the significant higher efficacy of IL6, IL8, CRP and salivary progesterone in predicting the preterm pregnancy. Progesterone levels in the saliva was markedly lower among the pregnancy with preterm delivery compared to term delivery outcome. The fetal outcome among the preterm delivery was significantly with morbidity and mortality compared to term delivery. The ROC curve showed the estimation of IL6, IL8, CRP and salivary progesterone at 20-24 weeks of gestation can predict the outcome of preterm pregnancy.
COVID-19 and pregnancy outcomes: a retrospective study from a tertiary health care center of Uttarakhand, India
Authors: Upreti Purnima , Godara Punam
Published: March 2023

Background: Information regarding the effects of COVID-19 on pregnancy outcomes evolved rapidly in the recent years. This study aims to present the outcomes in COVID-19 positive pregnant women.
Methods: This retrospective cohort study was conducted in a tertiary health care center of Uttarakhand, India from April 2021 to June 2021. The maternal and neonatal data for the included cases were extracted from hospital records and appropriately analysed.
Results: The positivity rate of COVID-19 among obstetric population was 7.9% by universal screening protocol. 55.2% participants were in the age group of 25-30 years. Gestation age at presentation ranged from 6 weeks to 41 weeks. 47.3% participants had pre-existing comorbidities. 26.4% study subjects had pregnancy related comorbidities, the most common being gestational diabetes mellitus (14.7%), followed by pre-eclampsia (8.8%). Only 21.1% participants were symptomatic at presentation. Most common presenting symptom was fever (87.5%) followed by breathlessness (62.5%). 7.5% required invasive ventilation and 10.5% cases required intensive care unit (ICU) admission and 76.5% participants underwent caesarean section which was done for obstetric indications only. 3.9% participants died due to COVID-related complications. Nearly 35% neonates were preterm, 29.4% had low birth weight and 24.1% needed neonatal intensive care unit (NICU) admission. Nasopharyngeal swab for COVID reverse transcriptase-polymerase chain reaction (RT-PCR) after 24 hours of birth was negative in all neonates. There were 10 (14.7%) stillbirths.
Conclusions: COVID-19 in pregnancy was associated with higher risks of gestational diabetes mellitus, preeclampsia and higher rates of invasive ventilation, ICU admission, caesarean sections, maternal mortality specially in women with pre-existing comorbidities, stillbirths, preterm births and NICU admission.
Doppler sonographic evaluation of intrauterine growth restriction of fetus and its correlation with perinatal outcomes among the population of riverine (char) areas of Barpeta Assam
Authors: Ullah Ibrahim K. , Thakur Madhurjya K. , Varma Dixit
Published: March 2023

Background: Intrauterine growth restriction (IUGR) also known as fetal growth restriction (FGR), has been associated with a variety of detrimental perinatal outcomes. FGR is defined as estimated fetal weights (EFW) or abdominal circumference (AC) that fall within the third, or tenth percentiles with abnormal doppler parameters. FGR affects 10-15% of all pregnancies around the world.
Methods: Prospective observational study of singleton pregnant women complicated by FGR were enrolled during the study period from September 2021 to August 2022. 100 patients were included in the study.
Results: Abnormal umbilical artery flow was seen in 30% of cases, out of which 83% (25) had abnormal perinatal outcome. Out of 100 cases, live births were reported in 94%, stillbirths in 4%, and IUDs in 2%. There were 16 neonatal deaths and 15 neonatal complications among the adverse perinatal outcomes. Intraventricular hemorrhage and neonatal sepsis were the two leading causes of death. Neonatal sepsis, necrotizing enterocolitis and hypoxic ischemic injury was the leading cause of morbidity. Reverse end diastolic umbilical artery Doppler and bilateral uterine artery notch had 100% mortality. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of umbilical artery in predicting perinatal outcome in IUGR were 80.65%, 92.75%, 83.33% 91.43% and 89.47% respectively.
Conclusions: Umbilical artery PI is the most sensitive parameter and had highest positive and negative predictive value and Accuracy in relation to adverse perinatal outcomes.
A prospective study of maternal outcome of labor and perinatal outcome in premature rupture of membranes
Authors: Andrabi Syed Uzma , Khan Ishtiyaq Ahmad , Bashir Nadia , Nisa Zeenat U.
Published: March 2023

Background: Premature rupture of membranes refers to rupture of fetal membranes prior to the onset of labor. PROM is of two types viz. term PROM and preterm PROM. The incidence of PROM is at an average of 10%. In 70% of the cases, it occurs in pregnancies at term.  Preterm PROM- defined as PROM prior to 37 weeks of gestation- complicates 2% to 4% of all singleton and 7% to 20% of twin pregnancies. It is the leading identifiable cause of premature birth and accounts for approximately 18% to 20% of perinatal deaths.
Methods: This study was conducted in the tertiary care teaching institute in the state of Jammu and Kashmir, India. After taking an informed consent, a proforma was filled on subject history, examination and investigations. These subjects were followed until delivery and then neonates were also followed.
Results: Incidence of PROM was 8.76% of which 54.7% were primigravida and 45.3% were multigravida. Most of the patients (70.4%) were term, only 29.6% were preterm with gestational age of <37 weeks. Incidence of PPH was 2.8%, puerperal pyrexia occurred in 9.8%. The incidence of RDS in neonates was 8.9% while the incidence of neonatal sepsis was 6.7%. There was 1.1% perinatal mortality.
Conclusions: From this study it can be concluded that basic aim of obstetrician should be to identify the risk factors leading to PROM, to treat complications and implement strict aseptic precautions to prevent maternal and neonatal morbidity.
Wernicke’s encephalopathy: obstetric diagnostic challenge! (a rare complication of hyperemesis gravidarum): a case report and review of literature
Authors: N. Sunanda , Impana M.
Published: March 2023

Wernicke’s encephalopathy (WE) is an acute neurological disorder caused by a deficiency in thiamine. It is characterized by triad of altered mental status, ataxia and ophthalmoplegia. Most of the cases reported were secondary to long-term alcohol use. We reported a rare case of WE due to hyperemesis gravidarum in a 29-year-old P1L1A1 women at 22 weeks of gestation who had spontaneous abortion. Patient manifested with features of mental confusion, nystagmus, and gait ataxia. Diagnosis was established after MRI findings suggestive of WE in thalamus. Patient clinically improved after treatment with thiamine. We emphasize the importance of thiamine supplementation to women with hyperemesis to prevent life threatening complications.
Management of primary infertility in a patient with Kartagener’s syndrome: a case report
Authors: Yaramareddy Swapna , Lenin B. Valluri  , Siyonu K. Sardena  , Nom K. N. Bhukya
Published: March 2023

Kartagener's syndrome (KS) is a subgroup of primary ciliary dyskinesia (PCD), an autosomal recessive hereditary condition characterised by chronic sinusitis, bronchiectasis, and situs inversus. The fundamental pathophysiologic issue in Kartagener's syndrome is abnormal ciliary structure or function, which results in decreased ciliary motility. The patient in the present case was a 31-year-old female with a twelve-year history of primary infertility. In vitro fertilization and embryo transfer (IVF-ET) was performed and the patient conceived successfully. PCD should be strongly considered in women whose main infertility is accompanied by persistent respiratory symptoms. In women with PCD, superovulation and intrauterine insemination would not improve the likelihood of conception. In infertile women with PCD, IVF-ET is considered to be the best therapeutic option.
Giant placental chorioangioma presenting as severe polyhydramnios: a case report
Authors: Agrawal Prabha , Agrawal Rahul , S. Fareed Shabnam , R. Ancha Kinnera
Published: March 2023

Chorioangiomas are the most common non-trophoblastic, benign, vascular tumour of the hemochorial placenta. Small chorioangiomas are usually symptomless, and of no clinical significance while giant ones more than 4 cm in diameter may be complicated by polyhydramnios, foetal cardiomegaly, hydrops fetalis, and foetal growth restriction. We present a case of a 32-year-old primigravida referred to us at 30 weeks of gestation with large placental chorioangioma causing polyhydramnios which was treated by amnioreduction twice over 1 month. On referral the tumour size was about 56 mm size with severe polyhydramnios with amniotic fluid index of 57 cm, with breathlessness and pain abdomen. After relevant investigations and informed consent, she was taken up for caesarean section. 2 litres of clear liquor drained. She delivered a live female baby weighing 1.2 kg with Apgar score of 7 and 8. Patient stood the operation well. Gross and microscopic examination of the placenta confirmed the diagnosis of chorioangioma. Chorioangioma should be considered as differential diagnosis in cases of hydrops fetalis or polyhydramnios. Doppler ultrasound is the method of choice to detect chorioangioma and its vascularity. Giant chorioangiomas complicating pregnancy can be managed conservatively with close surveillance, foetal monitoring and timely intervention to prevent maternal and foetal morbidity and mortality.
A rare case scenario of didelphic uterus with ovarian serous cystadenocarcinoma: an unusual clinical finding
Authors: Sharma Medhavi , Sharma Gaurav , Varshney Shivangi
Published: March 2023

Uterine didelphys in women is uncommon. The improper development of the Mullerian ducts during the intrauterine period leads to congenital abnormalities of the female genital system. Mullerian duct canalization or improper fusion leads to a didelphic uterus. About 60% of ovarian neoplasms are epithelial in origin, and the surface epithelium is typically most affected. This case report describes the management of a patient who had previously undergone two caesarean sections for a rare gynecological case of didelphic uterus with unilateral serous cystadenocarcinoma of the ovary.
A case report on advanced undiagnosed secondary abdominal pregnancy
Authors: Bansal Ashnoor , Saikia Nabajyoti
Published: March 2023

Abdominal pregnancy is a rare form of ectopic pregnancy that involves implantation within the peritoneal cavity, exclusive of fallopian tubes, ovaries, broad ligament and cervix. Secondary abdominal pregnancy results from implantation of blastocyst into peritoneal cavity that was originally located elsewhere. It is associated with high maternal and fetal morbidity and mortality. Here, we have discussed about a 32 year old second gravida para one post caesarean section (last CS 2 years back) at 24+ weeks of gestation with rupture uterus with advanced secondary abdominal pregnancy with intrauterine death. Exploratory laparotomy with repair of rupture uterus with bilateral tubectomy was done.
Cerebrospinal fluid rhinorrhea: a novel approach
Authors: Mohanty Deeganta , Kumar P. Sunil , Sahithi Konda
Published: March 2023

Background: This study aimed to describe the use of nasal endoscopic technique in the management of cerebrospinal fluid (CSF) rhinorrhea repair. Over the last decade, endoscopic surgery has established itself as the most widely used technique for the repair of CSF leak.
Methods: 20 patients diagnosed with CSF rhinorrhea undergoing endoscopic CSF rhinorrhea repair were included in this study. To confirm the diagnosis beta-2 transferrin test was done. Accurate localization of site of lesion using CT cisternography was done.
Results: Spontaneous onset of CSF rhinnorhea was noted in 75% of patients. The most common cause of CSF rhinorrhea in our study was spontaneous and the second most common cause was post traumatic. Almost 45% of patients presented with headache as primary complaint, 30% with only CSF leak, 20% with nasal obstruction and rest 5% with hyposmia.
Conclusions: Multilayered closure of the dural defect was done. It can be concluded that middle aged people presented as CSF rhinorrhea with female predominance and there was high success rate of endoscopic CSF rhinorrhea repair with low morbidity.
Uncommon congenital swellings around external ear in adults
Authors: Desai Nidhi , Vare Reena , Vare Anil
Published: March 2023

Congenital cyst around external ear appearing in adulthood is rare condition. Such lesions arising around the external auditory canal that requires surgical excision are uncommon and their clinical and surgical management is often difficult because these anomalies have variable relationship with facial nerve. In this study, we investigated characteristics of congenital cysts of the external ear by analyzing their clinical and histo-pathological features. Here we described 3 unique cases with localization of an epithelial cyst, type 1 branchial cleft cyst and epidermal inclusion cyst in adults which are uncommon, congenital and rare.