bluuebunny/crossref_metadata_2025 huggingface dataset:
Prevalence of depression among medical staff of the family medicine department at King Abdulaziz hospital in Al Ahsa: a cross-sectional study
Authors: Al-Subaie Hamad , Al-Taweel Mohammad , Al-Saleh Mohammad , Al-Naim Mansour , Al-Jamaan Mohammad
Published: November 2022

Background: Depression is a complex disorder that is frequently misdiagnosed as a single clinical mental illness. This study aimed to measure the prevalence of depression among the medical staff of the Family Medicine Department at King Abdulaziz Hospital in Al Ahsa, Saudi Arabia.
Methods: This study was a descriptive cross-sectional study conducted at King Abdulaziz Hospital in Al Ahsa, Saudi Arabia. Both gender, who accepted to participate in the study, including physicians, medical residents, and nurses, were included in the study. The medical staff of other departments and staff with no past history of psychological problems were excluded. Patient Health Questionnaire 9 (PHQ-9) was used to collect the data.
Results: A total of 83 healthcare professionals participated in the study. More than half of them (54.2%) were females and 55.4% were less than 30 years old. According to PHQ-9, 62.7% had minimal depression, while 18.1%, 12%, and 4.8% had mild, moderate, and moderately severe depression, respectively. Generally, 80.7% were not depressed. The chi-square test reported a significant association of depression with marital status (p = 0.013), living status (p = 0.004), and job title (p = 0.000), where single, those who lived alone, and nurses were highly subjected to depression.
Conclusion: The prevalence of depression among the studied population was 19.3%. The occurrence of depression was higher among single participants, those who lived alone, nurses, those who had chronic diseases, and those who did not follow up in a psychiatric clinic.
Pengaruh Iklan Sosial Media Shopee terhadap Keputusan Pembelian
Authors: Anggriani Monika , Erdiansyah Rezi , Salman Doddy
Published: November 2022

This study aims to determine the effect of Shopee's social media advertising on purchasing decisions. The theory used to conduct this research is marketing communication, advertising, social media, and purchasing decisions. This research uses a quantitative method. The technique used in data collection is a questionnaire / questionnaire. The population of this study were Shopee's Instagram followers and the samples were taken randomly or randomly. The result of this research is that the independent variable has a significant relationship to the dependent variable
Penelitian ini bertujuan untuk mengetahui pengaruh iklan sosial media Shopee terhadap keputusan pembelian. Teori yang digunakan dalam penelitian ini adalah komunikasi pemasaran, periklanan, sosial media , dan keputusan pembelian. Penenlitian ini menggunakan metode kuantitaif. Tenik yang digunakan dalam pengambilan data yaitu dengan kuesioner/angket. Populasi dari penelitian ini adalah follower Instagram Shopee dan sampel yang diambil secara acak. Hasil dari penelitian ini adalah variabel independen memilki hubungan yang signifikan terhadap variabel dependen.
Komunikasi Kreatif dalam Proses Pembuatan Iklan Online (Studi Kasus Café Sudut Pandang Kopi)
Authors: Elfian Elfian , Paramita Sinta
Published: November 2022

This research is about Creative Communication in the step of making online advertisements at MSME (Micro, Small and Medium Enterprises) Sudut Pandang Coffee cafe. The purpose of this research is to find out creative communication in the process of making online advertisements at the Sudut Pandang Coffee cafe. Researchers used qualitative research with case study methods. The subjects are MSME who own and carry out advertisements on their social media, while the object is the processes in making online advertisements. Researchers collected data by conducting interviews with  Micro, Small and Medium Enterprises, namely Sudut Pandang Coffee cafe. The result of this research is that making online advertisements involves a creative process starting from taking photos of products to uploading them to social media. The conclusion is that the creative communication carried out by MSME in making online advertisements is to produce attractive product photos, captions that provoke consumer buying interest, do endorsements, and make many interesting promos. The results are creative communication in the process of making online advertisements in the form of product photos, interesting captions, hiring endorsers, and making attractive promos. The conclusion in this study, that there is creative communication carried out by business actors, in carrying out their promotions there must be creative things that are done to attract consumer buying interest.
Penelitian ini mengenai komunikasi kreatif dalam langkah pembuatan iklan online pada UMKM (Usaha Mikro Kecil Menengah) cafe Sudut Pandang Kopi. Penelitian ini bertujuan untuk mengetahui komunikasi kreatif di proses pembuatan iklan online pada café Sudut Pandang Kopi. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus. Subjek dalam penelitian ini adalah UMKM yang memiliki dan berkomunikasi dengan iklan pada media sosial mereka, sedangkan objek penelitian ini adalah proses dalam pembuatan iklan online. Pengumpulan data penelitian ini dilakukannya wawancara dengan pemilik usaha mikro kecil menengah, yaitu café Sudut Pandang Kopi. Hasil penelitian ini adalah dalam membuat iklan online tersebut melibatkan proses kreatif mulai dari memfoto produk sampai mengunggahnya ke media sosial. Kesimpulan penelitian ini, komunikasi kreatif yang dilakukan para UMKM dalam pembuatan iklan online adalah dengan menghasilkan foto produk yang menarik, caption yang memancing minat beli konsumen, melakukan endorse, dan membuat banyak promo-promo menarik. Hasil dari penelitian ini adalah adanya komunikasi kreatif dalam proses pembuatan iklan online berupa foto produk, caption yang menarik, menyewa endorser, dan membuat promo-promo yang menarik. Kesimpulan dalam penelitian ini adalah ditemukan adanya komunikasi kreatif yang dikerjakan oleh para pelaku usaha, pada saat melakukan promosinya pasti ada hal kreatif yang dilakukan untuk menarik minat beli konsumen.
Geochemical Study of Chert Artefacts from Xicotó Rockshelter (NE Iberia) Archaeological Site. New Data on Neolithic and Mesolithic Human Occupations
Authors:   SERP-IAUB. Universitat de Barcelona. 6–8 Montalegre St, 08001 Barcelona, Spain, Sánchez de la Torre Marta , Belén González Olivares Cynthia ,   SERP-IAUB. Universitat de Barcelona. 6–8 Montalegre St, 08001 Barcelona, Spain, Gratuze Bernard ,   IRAMAT-CEB (UMR 5060). CNRS – Université d’Orléans. 3D Ferrollerie St, 45071 Orléans, France, Le Bourdonnec François-Xavier ,   Archéosciences Bordeaux (UMR 6034). CNRS – Université Bordeaux Montaigne – Université de Bordeaux. Esplanade des Antilles, F-33607 Pessac Cedex, France, Mangado Xavier ,   SERP-IAUB. Universitat de Barcelona. 6–8 Montalegre St, 08001 Barcelona, Spain
Published: November 2022

Xicotó Rockshelter (Alòs de Balaguer, Lleida, Spain) is located in the eastern Pre-Pyrenean range in north-east Iberia, in the middle Segre River Basin. Since 2013, archaeological works have been developed by a team from the Prehistoric Studies and Research Seminar (SERP) at the University of Barcelona and up to three sedimentary levels have been identified. The preserved archaeological remains have allowed determining that the site was occupied during at least two different periods: the Ancient Neolithic and the Middle Mesolithic. The relative chronology given by the archaeological assemblage has been confirmed by several radiocarbon dates that place the occupations of the site to be during the VI and VII millennia cal BC. This paper presents the results obtained after the analysis of lithic raw materials from the entire lithic assemblage. The analysis was performed using the classic petroarchaeological approach, comprising textural and micropalaeontological descriptions, combined with the application of geochemical methods, using energy-dispersive X-ray fluorescence (ED-XRF) and laser-ablation inductively-coupled-plasma mass spectrometry (LA-ICP-MS). The results show that several rock types were selected for confectioning the lithic tools, among which chert was the preferred. Different types and origins have been identified, with similar sourcing strategies that involved local and regional procurement.
Beyond a Decoration; Mineralogical and Micro-structural Study of the Early Bronze Age “Life Cycle Jar” from Keshik Cemetery, Sistan and Balouchistan, Iran
Authors:   Department of Conservation, Cultural Institute of Bonyad Museum, Resalat Highway, P.O. Box : 1519611197, Tehran, Iran, Sedghi Yasin , Sabouhi Sani Farahangiz ,   Department of Conservation of Cultural Properties and Archaeometry, Art University of Isfahan, Hakim-Nezami St., P. O. Box: 1744, Isfahan, Iran, Eskandari Nasir ,   Department of Archaeology, University of Tehran, Enghelab Square, 16 Azar St., P. O. Box: 661914155, Tehran, Iran, Emami Mohammadamin ,   Department of Conservation of Cultural Properties and Archaeometry, Art University of Isfahan, Hakim-Nezami St., P. O. Box: 1744, Isfahan, Iran,   Institut de Recherche sur les Archéomatériaux-Centre de Recherche en Physique Appliquée à l’Archéologie (IRAMAT-CRP2A), Université Bordeaux Montaigne, University area, F-33607 PESSAC Cedex, France
Published: November 2022

The present study focuses on a unique pottery vessel, the so-called “Life Cycle Jar”, and nine other potsherds which were discovered in the Keshik cemetery, Baluchistan, south-east Iran. Samples were investigated through classical analytical methods such as thin-section petrography, X-ray powder diffraction (XRPD), and scanning electron microscopy coupled with energy dispersive X-ray fluorescence (SEM-EDX) to determine the production techniques, fabric characterisation, as well as the pigments applied to decorate the surface of the Life Cycle Jar. Mineralogical and chemical investigations revealed that the pottery pieces were similar in raw materials, and produced locally. Samples show a wheel-thrown signature based on the definite orientation of pores and structural character in their thin sections. The potter pieces were fired under oxidation processes demonstrated by the red and green colour of the matrix. The investigated pottery samples were defined as high-fired sherds (ca. 800–950°C), due to the presence of inclusions in the form of reacted calcite in rhombohedra crystal structure, and hematite within the matrix of the pottery. The microstructural characteristics of the pottery pieces showed that the manufacturing temperature was no higher than 950 °C, by presintering texture. The investigations on the painted decoration on the Life Cycle Jar suggested that iron oxide and manganese oxide was used as the colourant agent in the decoration.
Intestinal Bacteria and Parasites Associated with Diarrhea in Infants and Children in Zakho City, Kurdistan Region, Iraq
Authors: A. Abdulqader Jihan , M. S. Mero Wijdan , M. Khalid Haval
Published: November 2022

Intestinal parasites and bacteria especially enteropathogenic Escherichia coli (EPEC) are important causative agents responsible for persistent diarrhea in infants and children worldwide due to their high occurrence in both the hospitals and community settings. However, sporadic outbreaks by these microorganisms occur globally. This study was conducted from August 2021 to January 2022, during which 500 diarrheic stool samples were collected from both genders and various ages (6 month to 12 years) from outpatient in Zakho hospital. In this study the total rate of infection was 64.2% (321/500), considerable number of samples were positive for more than one species of microorganisms, elevating the rate to 89%, with the highest rate (62%) being with bacteria among which E. coli was the dominant species (74.84%), while the rate with parasites was 27%, with E. histolytica being the dominant species (45.93%). Other recorded bacterial species with their rates are: Klebsiella (15.16%) Pseudomonas spp. and Shigella spp. at rates of 6.13% and 3.87%, respectively. While other parasites included: Cryptosporidium spp. (34.07%), Blastocystis spp. (13.33%), G. lamblia (5.93%) and H. nana (0.74%). Single infections were reported in 61.68% (198/321) of the positive cases with the highest rate (49.53%) of bacteria and only 12.15% with parasites. The dominant organisms in single infections were E. coli and the oocysts of Cryptosporidium spp. at rates of 81.13% and 61.54%, respectively. The mixed infections were documented in 38.32% (123/321). Among these, 67.48% (83/123) showed a combination between bacteria and parasites. The most frequent microorganisms encountered in mixed infections were E. coli and E. histolytica at rate of 33.33%. The total rate of infection in females was higher than that in males (59.19 vs 40.81%), with the highest (77.89%) being among the age group 6 months-2 years. In each gender separately, males of the age group 6 months to 2 years showed the highest rate (62.16%,) whereas females of the age group 9-12 years had the highest rate (51.16%). Statistically the relationships between the rate of infection, age and gender were non-significant (P < 0.294). In conclusions it's obvious that 89 % of diarrheal cases were associated with bacteria, and parasites, with E. coli, Klebsiella, E. histolytica, and Cryptosporidium spp. oocysts as leading microorganisms.  About 61.68% were infected with one microorganism and 38.32% with two different species of microorganisms and the prevalence rate of microbes was found to be sex and age independent. Therefore, it is recommended to disseminate the health education and sanitary application programs among the community.
Reflexiones desde el análisis sistema mundo a la geoeconomía latinoamericana
Authors: Cerón Alejandra
Published: November 2022

Este capítulo se propone conciliar las reflexiones teóricas derivadas de los desarrollos del pensamiento enmarcadas dentro de las ideas sobre el sistema mundo con las realidades emergentes sobre el poder económico frente a la autonomía de los Estados en los territorios de América La-tina. Siguiendo la propuesta de G. Arrighi respecto a la relación directa que puede establecerse entre industrialismo, capitalismo y militarismo, y entendiendo que en dicha triada radica buena parte de las claves para establecer el poder y el dominio sobre los territorios, es como pueden ser explicadas las dinámicas de poder en el sistema internacional. Se busca hacer un análisis de la forma como esa triada de poder ha sido aplica-da para llevar su excedente de capital a otros lugares del mundo, para alimentar conflictos que, a la postre, acaban por legitimar las intervenciones de los países hegemónicos sobre los territorios de otros Estados. Para el caso concreto de Latinoamérica, se analiza cómo dicha estrategia tiene un vínculo directo con la crisis política venezolana del siglo XXI. El resultado se relaciona con la reconfiguración de las estructuras de poder en la región, sin que aún sea utilizado el arquetipo del poder militar para movilizar intereses sobre la región.
Complejos de seguridad regional: confluencia, “gran juego” y guerra irrestricta
Authors: Cancelado Franco Henry
Published: November 2022

Poder analizar la conflictiva dinámica de la frontera entre Colombia y Venezuela implica recurrir a elementos conceptuales que provean las herramientas necesarias para acercarse a los fenómenos prácticos. De tal manera, se hace necesario entender la dinámica entre ambos países como la resultante de procesos de confluencia entre diferentes fenómenos y actores, como consecuencia, a su vez, del gran juego estratégico que pueda haber; en especial, teniendo en cuenta los intereses latentes desde Venezuela en proteger sus intereses y mantener una actitud desafiante y una amenaza expansionista manifiesta en el ámbito constitucional; y finalmente, como parte de un escenario de guerra irrestricta, que combina, desde el país vecino, todas las formas posibles para desestabilizar la institucionalidad colombiana.
Las amenazas en la frontera: las guerrillas y la delincuencia organizada en la frontera colombo-venezolana
Authors: Borrero Armando
Published: November 2022

Pronto hará medio siglo de las conclusiones de la Comisión Independiente Sobre Cuestiones de Desarme y Seguridad, presidida por quien fue uno de los políticos más respetados de la segunda mitad del siglo XX: Olof Palme, primer ministro de Suecia en ese entonces, y que aportó al debate en la política y en la academia una ampliación de la temática de la seguridad. En términos metodológicos, la ampliación del alcance del concepto de seguridad no deja de ser problemática. Cuan-do un concepto se amplía, tiende a perder poder de análisis, porque abarca muchos temas y se torna impreciso. En el caso de la frontera colombo-venezolana, se puede afirmar que la violencia caótica que allí se vive reúne tantos elementos que se lo puede estudiar mejor bajo el marco conceptual de seguridad humana. Los problemas de anarquía y descontrol son de una complejidad y una magnitud tales que no se pue-den resolver con los mecanismos habituales de fuerza militar, policial y judicial; sería “más de lo mismo”, de la fórmula con la que se trataban los desórdenes de tiempos anteriores, pero que hoy se queda corta. Las guerrillas, el crimen internacional y los movimientos de población de hoy piden un enfoque nuevo.
Actores de criminalidad en la frontera colombo-venezolana: un desafío de 2219 kilómetros del Estado colombiano para la seguridad transnacional
Authors: Muñoz Marco Antonio
Published: November 2022

Colombia, como Estado social de derecho, enfrenta grandes desafíos de rango constitucional, referentes a la defensa y la integridad del terri-torio nacional; más aún, sobre la soberanía que ese mismo Estado ejerce. Ejemplo de ello son todas las circunstancias sociales, políticas, culturales y económicas respecto a las que se ha visto el Estado retado a actuar en territorio transnacional con Venezuela. Uno de los más significativos flagelos ha sido el resurgimiento de grupos armados al margen de la ley y grupos organizados, debido a la vulnerabilidad de la zona, que, como bien se sabe, en ocasiones ha sido sinónimo de olvido y desatendida por el Gobierno nacional; incluso, existen flagelos que podrían denominarse nuevas amenazas, que arremeten de forma coyuntural con otro tipo de circunstancias. Determinar, puntualizar y enfatizar los desafíos y cada uno de los flagelos y los actores de criminalidad e inestabilidad en la frontera se torna importante cuando de ello ha devenido gran parte de la historia y de los conflictos en este sector: incluso, ha detonado grandes disputas en el marco internacional; más aún, cuando nos anteceden sucesos de violencia e inseguridad interna, a lo largo de los años.
Traveller Impressions of Lake Champlain Steamboats, 1827-1842
Authors: Kennedy Carolyn
Published: November 2022

In the first half of the nineteenth century, Lake Champlain became increasingly famous for its magnificent passenger steamboats. Not only were residents of the Champlain Valley filled with pride over these vessels, but the steamers earned international acclaim. This article presents primary source evidence describing Lake Champlain’s Golden Age steamers from local, regional, and international travellers’ accounts which describe the appearance and operations of these lake boats from the 1820s and 1830s. Despite travel diaries including problematic biases, this evidence fills gaps in our knowledge of the build of these steamboats left by the analyses of their archaeological remains. Dans la première moitié du XIXe siècle, le lac Champlain est devenu de plus en plus connu pour ses magnifiques bateaux à vapeur à passagers. Non seulement les résidents de la vallée du lac Champlain étaient fiers de ces navires, mais les navires ont aussi acquis une renommée internationale. À partir de témoignages obtenus de sources primaires, cet article décrit les bateaux à vapeur de l’âge d’or du lac Champlain suivant les récits de voyageurs locaux, régionaux et internationaux qui traitent de l’apparence et des opérations de ces bateaux au cours des années 1820 et 1830. Malgré des carnets de voyage qui comportent des partialités problématiques, ces témoignages comblent les lacunes de nos connaissances sur la construction de ces bateaux à vapeur laissées par les analyses de leurs vestiges archéologiques.
PENERAPAN BALANCED SCORECARD SEBAGAI TOLAK UKUR DALAM PENGUKURAN KINERJA USAHA BUDIDAYA IKAN LELE DI KECAMATAN KOTO TANGAH KOTA PADANG
Authors: Imtihan Imtihan , Mayasari Lisa , Yulhendri Yulhendri
Published: November 2022

Balanced Scorecard merupakan suatu alat yang digunakan untuk memantau keputusan strategis yang diambil oleh perusahaan berdasarkan indikator yang telah ditetapkan sebelumnya yaitu terkait dengan aspek keuangan, pelanggan, proses internal serta pembelajaran & pertumbuhan. Dasar pelaksanaan kegiatan ini adalah karena Budidaya ikan lele merupakan salah satu usaha yang banyak diayomi oleh masyarakat Kecamatan Koto Tangah Kota Padang. Minimnya pengetahuan dan keterampilan yang dimiliki dalam upaya pengembangan usaha budidaya ikan lele mengakibatkan banyak usaha para pembudidaya yang mengalami kerugian dan bahkan sampai tutup usaha. Metode yang digunakan dalam kegiatan ini berupa penerapan Balanced Scorecard yang di hubungkan dengan tujuan, strategi, dan sasaran yang ditetapkan oleh usaha mitra. Lebih lanjut, tujuan dari kegiatan ini adalah mitra mampu mencapai tingkat pertumbuhan tertentu dan memperoleh keunggulan bersaing dalam pasar. Penerapan Balanced Scorecard ini dilaksanakan melalui 4 (empat) tahapan; yaitu (1) Sosialisasi Program, (2) Pelatihan, (3) Pendampingan serta (4) Monitoring dan Evaluasi program. Dari kegiatan ini diperoleh hasil tingginya minat peserta kegiatan dalam menerapkan pendekatan Balanced Scorecard sehingga dapat mengukur kinerja usaha yang mereka miliki. Hal ini tercermin dari (1) keantusiasan para anggota dalam mengikuti kegiatan program ini mulai dari sosialisasi hingga pelatihan yang diberikan oleh anggota tim pelaksana kegiatan; (2) berdasarkan kuisioner yang telah di isi oleh para peserta kegiatan menggambarkan keinginan yang tinggi bagi peserta untuk menerapkan Balanced Scorecard. Kegiatan juga dilengkapi dengan pemberian bantuan bahan dan peralatan pada kelompok para pembudidaya ikan lele di Kecamatan Koto Tangah Kota Padang sehingga mereka bisa menyusun strategi Balanced Scorecard yang dapat digunakan sebagai tolak ukur dalam pengukuran kinerja usaha para peserta kegiatan ini.
A Pragmatic Study of Speech Acts in Iraqi and American Parliamentary Electioneering Campaign Posters
Authors: Ali Abid Hmood , Al- Ahbabi Ikram Salim Aswad
Published: November 2022

Posters are one of the most effective tools for communicating ideas, thoughts, and plans. They come in a variety of shapes and sizes, with various goals and objectives. One example is the political posters, which are concerned with elections and seek to familiarize voters with candidates and their ideologies. Posters are designed to enhance the impact of candidates’ election programs (platforms, manifestos) in order to achieve their political aims. Politicians purposefully use various types of pragmatic elements in their election campaign posters in order to gain more votes by influencing voters. Furthermore, they rely on a variety of  pragmatic means to express a wide range of speech acts. This study is concerned with investigating the Iraqi and American parliamentary election campaign posters pragmatically. The data is analyzed from pragmatic perspective .The data is taken from Iraqi parliamentary elections that are held in 2021, and American senate elections that are held in 2020. It applies Searle’s theory of speech acts (1979).
Modeling of Hovering Intermeshing Rotor Using Blade Element Momentum Theory
Authors: Sheen Guanbin , Baoyin Hexi , Wang Xianyu , Li Jingyang
Published: November 2022

This paper intends to establish a blade element momentum theory (BEMT) model for analyzing the rotor-and-rotor interference in the hovering intermeshing rotor system. The model uses the blade tip/hub losses to portray the intrinsic three-dimensional rotor aerodynamic effects and introduces the skew downwash flow to determine the rotor-and-rotor interference. Then, the model employs the interference locus considering the intersecting angle and the rotor hub spacing to distinguish the interference operating region on the rotor disk. Next, the BEMT model results are validated against experimental data of the German Autonomous Rotorcraft for Extreme Altitudes (AREA) helicopter and the computational fluid dynamics simulation results of the JZ series helicopters. Moreover, the effects of the rotor performance on the intersecting angle are also considered. It is found that the interference operating region resembles a semi-ellipse shape on the intermeshing rotor disk, which is not sensitive to the collective pitch angles under given structural parameters. Second, the emerging thrust recovery region created by raising the intersecting angle from 20 to 30 deg has a limited enhancement to the rotor thrust and the rotor performance. However, the incremental intersecting angle will produce a significant variation of the rotor thrust in the horizontal component in the body coordinate system, providing a large design numerical margin for the lateral stability in the hovering intermeshing rotor system.
Steady and Unsteady Hover Test of a Lift Compounding Rotorcraft
Authors: Maurya Shashank , Chopra Inderjit , Datta Anubhav
Published: November 2022

Compound rotorcraft can be a viable option to achieve moderately high speeds of 240 knots. However, there is no systematic wind tunnel test data in the public domain to understand the complex interactional aeromechanics involved. This work is part of a test campaign to conduct multiple high-speed wind tunnel tests of various compound configurations. The compound configuration consists of a single main rotor, a single wing on the retreating side for lift augmentation, and a single rear propeller for propulsive augmentation. In this paper, hover test results are presented. Hover tests were conducted for various configurations and at different tip Mach numbers with the maximum value of 0.5. Rotor and wing performances are measured separately using individual balances. Rotor blades are equipped with strain gauges for measuring flap, lag, and torsional moments at [Formula: see text] radial stations. The wing location is [Formula: see text] below the main rotor, and the measured wing download is only 2.8% of the rotor thrust. The wing provides a partial ground effect, making the rotor more efficient and almost compensates for the download with less than 1% reduction in net figure of merit. Blade structural loads correlate satisfactorily between the analysis and measurement except for lag bending moment. This discrepancy is a large 2/rev lag bending moment measured in the test, which needs further investigation. Propeller hover test was conducted up to 2500 revolutions per minute (tip Mach number of 0.25) at a single collective. Prediction correlates well and captures the low-Reynolds-number effect for lower revolutions per minute.
NCREASING THE SPEED OF ANALYSIS OF IMAGES OBTAINED FROM UNMANNED AERIAL VEHICLE
Authors:   Chernihiv Polytechnic National University, Voytenko Volodymyr , Solodchuk Maksym ,   State Scientific Research Institute of Armament and Military Equipment Testing and Certification
Published: November 2022

Carrying out long-term search and rescue missions, intelligence, surveillance and reconnaissance, which are carried out with the help of unmanned aerial vehicles (UAVs) overload the operator and reduce the effectiveness of solving the assigned tasks, up to the point of making their implementation impossible. The paper proposes the concept of increasing the speed of the human-machine system based on information obtained from images transmitted in real time by video cameras installed on a platform moving relative to the UAV, by mean of the intelligent controlsystem of this platform.Thus, the image from the main video camera with a wide viewing angle is divided into rectangular sections (zones), which size is determined by the viewing angle (zoom) necessary for the operator to make the final decision. The software system of the lower level, evaluating the video frame, determines and marks the areas in which the object of interest may be present. Increasing the focal length and focusing (i.e., zooming the image), as well as positioning the main camera is carried out for the area where the probability of the presence of the candidate object is the greatest. In another variant, a separate spot camera with a reduced and fixed field of view is aimed at the yaw and pitch angles, which requires that this camera be directly suspended on a gyro-stabilized platform, where a block of other sensors is installed, including the main video camera.An example of modeling the electric drive of a spot camera by the yaw angle is given and further steps are determined for the development of subsystems of three levels: software (recognition), hardware (scaling and positioning), human-machine (coordination of information flows). To improve the dynamic characteristics in comparison with the basic proportional-integral laws, it is proposed to use quasi-optimal algorithms for regulating electric drives.
THE APPROACH TO STREET ELECTRIC LIGHTING COMPLEX MANAGEMENT WITH THE HELP OF A FUZZY REGULATOR
Authors:   Kryvyi Rih National University, Sinchuk Oleg , Horshkov Victor ,   VSP “Mining and Electromechanical Vocational College of Kryvyi Rih National University”
Published: November 2022

Street lighting networks are an integral part of the structure of communal economy of cities, towns and large settlements. Electrotechnical complexes of street lighting today are energy-intensive, therefore they need to be modernized in order to further their efficient operation and rational use of electrical energy. Today, it is possible to achieve such results only with the introduction of modern technologies and approaches to the construction of management systems.Modern elements of lighting systems areLED lighting devices, which are very economical and reliable. To date, the planned modernization of street lighting in the country's population centers is underway.Street lighting is an important component of the infrastructure of settlements. The quality of the functioning of the external lighting of populated areas is, on the one hand, a guarantee of people's comfort and the aesthetics of the surrounding space,and on the other hand, it affects the reduction of the number of traffic accidents and other criminal incidents.The purpose of this article is the theoretical justification of the approach to the management of the electrotechnical complex of street lighting, taking into account the multi-criterion of the input parameters to the control system.Taking into account the strategies for the development of control systems and the active implementation of distributed generation sources in various spheres of the world economy, including on the basis of renewable sources of electric energy, hybrid systems of artificial outdoor lighting controlled by intelligent control systems are being developed. The article proposes an approach to the management of the electrotechnical complex of street lighting. The proposed structure of the electrical complex of street lighting based on LED lighting devices and modern sources of electrical energy. Considering the multi-criterion of the input parameters to the control system of the electrotechnical complex of street lighting and the impossibility of precise preliminary determination of the parameters of these criteria, it was proposed to use the control law using the elements of fuzzy sets, which will improve the quality of regulation with the support of Fuzzy Logic commands.
KONTEKS SIBERTEKS DALAM PRAGMATIK EDUKASIONAL BERPERSPEKTIF MULTIMODAL
Authors: Rahardi R. Kunjana
Published: November 2022

Konteks siberteks dalam pragmatik edukasional mendesak untuk diteliti dan diperikan. Keterlambatan pemerian hasil-hasil riset konteks siberteks dapat melahirkan pemahaman-pemahaman verbalistik atas batasan-batasan konteks pragmatik. Pemahaman konteks yang demikian itu tentu tidak dapat berkontribusi signifikan bagi pengembangan ilmu linguistik-pragmatik. Fakta yang terjadi sekarnag adalah bahwa peneliti pragmatik banyak mendasarkan pemahaman konteks dari definisi-definisi Barat. Dalam rangka menanggapi kenyataan itulah penelitian tentang konteks siberteks ini dilakukan. Penelitian ini bertujuan untuk memerikan manifestasi wujud dan fungsi konteks siberteks dalam perspektif multimodalitas pada pembelajaran pragmatik edukasional. Masalah penelitian dirumuskan berikut ini: Apa sajakah wujud dan fungsi konteks siberteks dalam perspektif multimodalitas? Sejalan dengan rumusan masalahnya, maka tujuan penelitian ini dirumuskan sebagai berikut: Mendeskripsikan wujud dan fungsi konteks siberteks dalam perspektif multimodalitas. Teori-teori yang mendasari penelitian ini adalah teori multimodalitas yang dikembangkan dari perspektif sosial-semiotik dalam linguistik fungsional versi MAK Halliday. Selain itu, teori pragmatik siber dan konteks ekstralinguistik virtual diperantikan dalam penelitian ini. Data penelitian ini berupa teks-teks yang di dalamnya terkandung konteks siberteks yang diperoleh di seputar waktu penelitian, yakni pertengahan tahun 2022. Jumlah data penelitian sengaja dibatasi mengingat berbagai keterbatasan penelitian. Sumber data substantif penelitian ini adalah teks-teks siber dalam perspektif multimodal. Metode pengumpulan data yang digunakan adalah metode baca-catat. Metode analisis data yang digunakan adalah metode kontekstual. Langkah-langkah analisis data dalam penelitian ini mencakup langkah identifikasi, klasifikasi, interpretasi, dan deskripsi. Hasil penelitian berupa manifestasi wujud dan fungsi konteks siberteks dalam perspektif multimodalitas pada pragmatik edukasional. Wujud konteks siberteks dalam penelitian ini berjumlah empat, yakni aspek visual, aspek spasial, aspek gestural, dan aspek linguistis. Adapun fungsi konteks siberteks mencakup fungsi-fungsi berikut: memperjelas maksud tuturan, mempertegas maksud tuturan, melatarbelakangi maksud tuturan, menarik perhatian dalam penyampaian maksud tuturan, menginspirasi pemaknaan maksud tuturan, dan mengilustrasikan penyampaian maksud tuturan. Penelitian ini bermanfaat dalam hal-hal berikut: (1) memberikan referensi baru bagi para peneliti pragmatik, khususnya pragmatik edukasional dalam perspektif multimodalitas; (2) memberikan khazanah penelitian pragmatik edukasional yang perlu terus ditindaklanjuti dengan penelitian yang lebih luas dan mendalam oleh para linguis Indonesia.
New species of the genus Thinodromus Kraatz, 1857 (Coleoptera: Staphylinidae: Oxytelinae) from southeastern China
Authors:   Department of Ecology and Chemistry, Smolensk State University, Smolensk, 214000, Russia, Gildenkov M.Yu.
Published: November 2022

Thinodromus (s. str.) stockyus sp. n. is described and illustrated from Fujian province of China. New species has a great similarity with representatives of Thinodromus sericatus species group, however, differs by stockier body, by rather narrow pronotum, and by absence of a tooth on its lateral margin at the base. Moreover, it differs from majority species of this group by the rather distinct punctation of body. New species reliably differs from all known species of Thinodromus Kraatz, 1857 by the structure of aedeagus.
Two new species of the genus Macrosiphoniella Del Guercio, 1911 (Hemiptera, Aphidomorpha: Aphididae) inhabits yarrow in Kazakhstan
Authors:   Institute of Zoology, Ministry of Education and Sciences of Kazakhstan Republic, Academgorodok, Al-Farabi av., 93, Almaty, 050060, Kazakhstan, Kadyrbekov R.Kh. , Tleppaeva A.M. ,   Institute of Zoology, Ministry of Education and Sciences of Kazakhstan Republic, Academgorodok, Al-Farabi av., 93, Almaty, 050060, Kazakhstan, Kolov S.V. ,   Institute of Zoology, Ministry of Education and Sciences of Kazakhstan Republic, Academgorodok, Al-Farabi av., 93, Almaty, 050060, Kazakhstan
Published: November 2022

Two new aphid species of the nominotypical subgenus of the genus Macrosiphoniella (Aphidinae) are described from Kazakhstan. Both species inhabits yarrow (Achillea millefolium L.). Macrosiphoniella kazakhstanica sp. n. most similar to M. silvestrii Roberti, 1954 but differs latter in the number of secondary rhinaria in apterous and alate viviparous females (5–10 and 24–26 vs 14–25 and 48–68), proportion of the processus terminalis to the base of the VI antennal segment (3.7–4.9 vs 2.8–3.6), proportion of antennal segment III to processus terminalis (0.82–0.98 vs 1.11–1.36), as well as the absence of dorsal sclerites at base of setae and color of all tibiae (brown in M. silvestrii and pale in the middle in new species). Macrosiphoniella sarmatica sp. n. is similar to M. terraealbae Kadyrbekov, 2000 but differs from latter in the ratios of the length of the processus terminalis to the length of the base of the 7th antennal segment (3.15–3.75 vs 2.7–3.1), length of the frontal setae to diameter of third antennal segment (1.6–1.7 vs 2.2–2.6), the number of accessory setae on the ultimate rostral segment (6 vs 7–8) and the number of setae on the cauda (10–13 vs 12–19).
Ammophila turkestana Kohl, 1906 (Hymenoptera: Sphecidae), a valid species
Authors:   Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630091, Russia, Danilov Yu.N. , Odintsev O.A. ,   Omsk State Pedagogical University, Omsk, 644099, Russia
Published: November 2022

Ammophila apicalis var. turkestana Kohl, 1906 is raised to full species status, with designation of the lectotype. A. turkestana Kohl, stat. n. is redescribed, illustrated, and newly recorded from Kyrgyzstan, Uzbekistan and Tajikistan.
The obesity code: Book review
Authors: Vihari Jonnalagadda
Published: November 2022

Dr. Jason Fung presents a novel, comprehensive model of obesity that delivers unexpected insights into healthy eating in this highly accessible and challenging book. Dr. Fung is a nephrologist (kidney doctor) who launched the Intensive Dietary Management program in Toronto. Dr. Jason Fung is regarded as a member of the foremost experts on intermittent fasting, a subject I knew very little about before going through his book. His intermittent fasting approach is his trademark prescription for obesity and type 2 diabetes individuals. Dr. Fung discusses utilizing intermittent fasting to end the cycle of insulin resistance and achieve a healthy weight.
Serum lipid levels in chronic spontaneous urticaria – An analytical cross-sectional study from a tertiary care center
Authors: Viswanath Vinayak , Mathew Rani , Nair Sukumaran Pradeep , George Anuja Elizabeth
Published: November 2022

Objectives:

The primary objective was to compare serum lipid levels in patients with chronic spontaneous urticaria (CSU) and normal subjects. The secondary objective was to study the clinical profile of patients with CSU.

Materials and Methods:

This was a hospital-based analytical cross-sectional study comparing the serum lipid levels in 45 patients with CSU with that of age- and gender-matched normal subjects who attended a tertiary care center during a period of 1 year (January 2020 to December 2020). A structured questionnaire was used to record history and examination findings. Lipid levels were estimated by collecting blood samples after 12 hours of fasting. The data were analyzed by independent sample t-test to compare the mean values between the different groups and Chi-square test for comparing proportion. P ≤ 0.05 was considered statistically significant.

Results:

Most of the study participants belonged to the age group of 21–30 years (mean 29.3 years, standard deviation 8.4 years). The male-to-female ratio was 1: 2.2. The majority of the patients in this study (27, 60%) were either overweight or obese. There was a statistically significant elevation in mean serum triglyceride level (TG) in CSU patients in comparison to normal controls (P = 0.008). Patients with a disease duration of more than 6 months had a significantly higher levels of non-high-density lipoprotein-cholesterol (non-HDL-C) (P = 0.026) and remnant cholesterol (P = 0.038), and significantly lower levels of mean low-density lipoproteincholesterol (LDL-C) (P = 0.027) and mean LDL/HDL (P = 0.026) in comparison to patients with a disease duration of 6 months or less.

Limitations:

Small sample size and the cross sectional design were the main limitations.

Conclusion:

Patients with CSU showed significantly higher levels of serum TG in comparison to controls. Patients with a disease duration of more than 6 months showed a significant increase in mean remnant cholesterol and non-HDL-C levels, and a significant decrease in LDL-C levels and LDL-C/HDL-C, when compared to those with a disease duration of 6 months or less.
Differential loss of fat in polycystic ovary syndrome: A welcome or warning sign?
Authors: VATSA RICHA , KAUR JAPLEEN , BHANSALI ANIL , WALIA RAMA
Published: November 2022

Lipodystrophy syndrome is a rare disorder characterized by selective deficiency of adipose tissue and severe insulin resistance resulting in metabolic complications. Its presentation as polycystic ovary disease (PCOD) is even rarer. We present a 23-year-old woman who came with complaints of oligomenorrhoea and hirsutism. When specifically asked, she accepted noticing loss of fat from some areas of her body. Examination showed loss of fat from the face, buttocks and thighs. Her investigations revealed deranged blood sugars, transaminitis, dyslipidaemia and elevated serum testosterone; ultrasonography showed fatty liver and polycystic ovary. Fat composition measurement revealed loss of fat from lower limbs and increased ratio of trunk-to-leg fat. Based on these findings, a diagnosis of lipodystrophy was made. She was started on metformin, statins and ursodeoxycholic acid. Blood sugars, lipid profile and dyslipidaemia improved over a period of 6 months. We suggest that in lean patients with PCOD, lipodystrophy becomes a differential diagnosis, so attention should be paid to body fat distribution in them. Despite normal body mass index (BMI), these patients tend to develop metabolic complications as in our patient (BMI 21.5). This diagnosis has long-term implications in view of its association with metabolic complications.
VISUAL ANALOGUE SCALE AS A TOOL FOR ASSESSING QUALITY OF LIFE (PEDSQL™) AND EMOTIONAL STRESS IN CHILDREN AFTER ANTERIOR ABDOMINAL WALL SURGERY
Authors: SEMKOVYCH YA.V. , DMYTRIIEV D.V.
Published: November 2022

Introduction. The prevalence of chronic postsurgical pain can be as high as 54%. Almost 17% of adult chronic pain patients report a history of chronic pain in childhood or adolescence. Untreated chronic pain in children increases the risk of developing mental disorders later in life. Health-related quality of life (HRQoL) is a commonly used indicator of health and well-being that demonstrates the impact of health on quality of life and reflects the desirability of health states relative to perfect health. The simplicity, reliability, validity, and easy determination of visual analogue scale (VAS) scores provides for its wide-ranging application in various clinical cases. The aim of this study was to assess quality of life in children after anterior abdominal wall surgery using the PedsQL™ 3.0 Present Functioning Visual Analogue Scales. Materials and Methods. Following the inclusion and exclusion criteria, a total of 80 children undergoing treatment at the surgical department of a Communal Non-Profit Enterprise “Ivano-Frankivsk Regional Children’s Clinical Hospital of Ivano-Frankivsk Regional Council” were enrolled in the study. Among them, 60 children underwent anterior abdominal wall surgery with various types of anesthetic regimens. The patients were asked to fill in the questionnaires repeatedly three and six months after hospital discharge. Results. According to the VAS, three and six months after surgery, quality of life was significantly lower in children who underwent anterior abdominal wall surgery under general anesthesia with opioids and were diagnosed with chronic pain syndrome (p<0.01). Their quality of life was significantly lower due to excessive emotional stress secondary to chronic pain syndrome (p<0.001). Discussion. Three months after surgery, children with chronic pain syndrome who underwent conventional anesthesia had high VAS scores experiencing reduced quality of life and elevated emotional stress as compared to the control group (p<0.001). Six months after surgery, in children who underwent regional analgesia, the levels of quality of life and emotional stress almost approached those in the control group as compared to children who underwent conventional anesthesia (p<0.001). Conclusions. Chronic pain syndrome reduced quality of life in children at the age of 7-18 years who underwent anterior abdominal wall surgery by increasing overall emotional stress. The myofascial block in conjunction with general anesthesia accelerates patient’s recovery, relieves pain, and reduces emotional stress.
Advances in understanding the phosphate binding in soil: A Computational Chemistry perspective
Authors: A. Ahmed Ashour , Leinweber Peter , Kühn Oliver
Published: November 2022

Phosphorus (P) is an indispensable element to all forms of life and its efficient use in fertilizers is one of the conditions for food security. The efficiency of P fertilizers is affected by P mobilization and P fixation, both depending on the P binding strength to soil constituents. This review provides an overview of the P binding to soil constituents, especially to P-fixing mineral surfaces and its investigation using state-of-the-art Computational Chemistry (CC). Specifically, a brief overview will be given on experimental efforts related to the P adsorption at mineral surfaces and the factors affecting this process. Moreover, a brief introduction into common CC methods, techniques, and applications is presented. The main part of this review is focused on a possible strategy to cope with the soil heterogeneity by breaking down the complexity of P behavior in soil into well-defined models that can be discussed in terms of particular key factors. Hence, different molecular model systems and molecular simulations are introduced to reveal the P binding to soil organic matter (SOM), metal ions, and mineral surfaces. Simulation results provided an in-depth understanding of the P binding problem and explained at a molecular level the effects of surface plane, binding motif, kind and valency of metal ions, SOM composition, water, pH, and redox potential on the P binding in soil. On this basis, an overall molecular picture of P binding in soil can be then obtained by combining results for the different models. Eventually, challenges and further modifications of the existing molecular modeling approaches are discussed, such as steps necessary to bridge the molecular with the mesoscale.