bluuebunny/crossref_metadata_2025 huggingface dataset:
Trabajo decente: mujeres microempresarias, sostenibilidad económica y laboral en Mexicali, México
Authors: Mora Moreno Elizabeth , Peimbert Duarte Alejandro José
Published: March 2023

Introducción: el concepto de «trabajo decente» definido por la Organización Internacional del Trabajo se asume como el trabajo productivo de hombres y mujeres en condiciones de libertad, equidad, seguridad y dignidad humana, y se propone como uno de los objetivos prioritarios de la Agenda 2030 de desarrollo sustentable de las Naciones Unidas.

Objetivo: identificar y analizar los elementos que involucra el trabajo decente desde la percepción de las mujeres microempresarias que trabajan en el sector alimentos y bebidas artesanales naturales u orgánicas para contribuir a la discusión sobre las características del concepto de trabajo decente para las mujeres desde la sustentabilidad económica y laboral.

Método: implicó un enfoque cualitativo de corte descriptivo con perspectiva de género y el concepto de cultura estructural como una perspectiva teórica, esto para analizar los elementos del trabajo decente desde la percepción de las mujeres. El trabajo de campo involucró la participación de 5 mujeres microempresarias de un colectivo artesanal a quienes se les realizaron entrevistas a profundidad.

Resultados: desde la percepción de las mujeres, los elementos sustanciales para un trabajo decente son: las convicciones, las preocupaciones e intereses de la mujer microempresaria y la conciliación trabajo-familia.

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La participación de turistas mujeres en el festival de Loja-Ecuador 2018
Authors: Sanmartín Rojas Javier Hernando , Freire-Chaglla Segundo , Sanmartin-Rojas Iliana , Serrano López Ana Lucía
Published: March 2023

Introducción: se sabe que los festivales incrementan y valorizan el patrimonio intangible.  Esta investigación busca propiciar la transformación de los festivales en escenarios que favorezcan el acceso a la difusión de las artes con criterios de equidad hacia las turistas mujeres.

Objetivo principal: el propósito de este trabajo es investigar la participación de las turistas mujeres durante la asistencia al Festival de Artes Vivas de Loja-Ecuador en 2018, y determinar si tanto los hombres como las mujeres tienen una participación plena e igualitaria en la cultura; así como inferir las tendencias futuras.

Método y técnica: esta investigación utiliza un enfoque cuantitativo de alcance exploratorio, se aplicaron 353 encuestas. Los datos se analizaron con base en la técnica de Clusters por  Árboles de Regresión y al Análisis de Detección de Interacción Chi-cuadrado. Adicionalmente, se utilizaron cuatro estadísticos de prueba.

Resultados: la probabilidad de asistencia de las turistas mujeres, así como sus gastos, fueron inferiores a la de los hombres. Las mujeres prefirieron las obras de teatro, la danza y las exposiciones gastronómicas. Los precios fueron percibidos como altos, lo que podría provocar el retorno de un pequeño porcentaje de las turistas mujeres.

Conclusiones:  la oferta cultural del festival no es inclusiva para las turistas mujeres. De persistir esta tendencia, la asistencia se polarizaría. El derecho de las turistas mujeres a participar como asistentes en las actividades de los festivales de arte debería ser un compromiso de la ciudad como política pública.
El desarrollo de destinos turísticos a partir de áreas naturales protegidas en Argentina:
Authors: Schenkel Erica
Published: March 2023

Introducción: La política de valorización turística de la naturaleza preservada adquiere gran relevancia en Argentina en las últimas décadas, de modo que el posicionamiento externo del país en el mercado turístico global comienza a articularse a partir de la calidad y diversidad de sus áreas naturales protegidas. Sin embargo, no todas las unidades de conservación han despertado el mismo interés de los gobiernos al momento de implementar dichas estrategias.
Objetivo: el estudio pretende analizar el rol que asumen las áreas naturales protegidas en la política turística desde la diversidad y complejidad que estas comprenden. Lo anterior exige ir más allá de la política institucionalizada, para así profundizar en el impacto diferencial que adquiere en cada lugar una vez implementada.
Metodología: dada la naturaleza mixta del estudio, se destacan, entre las técnicas de investigación, el análisis del corpus documental, la observación y la aplicación de entrevistas en profundidad a actores clave que intervienen en el proceso. Para el análisis, se recurrió al análisis de políticas públicas, como enfoque teórico-metodológico, el cual propone contrastar lo formulado con lo implementado, para finalmente aproximar evaluaciones.
Resultados: los resultados evidencian que los criterios de diversidad y equidad que conducen la estrategia de promoción (para posicionar al país en el mercado global a partir de su amplia biodiversidad de ambientes), no se aplican en la política de valorización turística, que concentra la provisión de obras y servicios en las áreas protegidas consolidadas, reconocidas internacionalmente por sus paisajes monumentales y bellezas escénicas.
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Transformation into 4PL: The case of local logistics service providers in Vietnam
Authors: Le Truong Diem Trang , Chromjaková Felicita , Dang Quang Vang
Published: March 2023

For a few decades, a new model of logistics service providers (LSP) has appeared and played the role of integrating all operations of the supply chain. This model is known as a logistics integrator, or fourth party logistics (4PL). 4PL has emerged as an ideal configuration for enterprises around the world to effectively utilize their resources and obtain cost reduction across the supply chain. With increasing competition among enterprises, customers’ requirements for complicated services, and global supply chain management, the limitations of inbound services from LSPs have become obstacles to their development. As a result, transformation into 4PL is inevitable for LSPs in the global logistics market. This paper aims to analyze the role, characteristics, and benefits of 4PL. A model for transformation into 4PL for local LSPs in Vietnam is constructed to identify impacting factors. The results point out six factors influencing the transformation process, as well as three important capabilities of 4PL.
Behavioral factors influencing individual investors' decision making in Vietnam market
Authors: Quang Luu Thu , Linh Nguyen Duy , Nguyen Diep Van , Khoa Duong Dang
Published: March 2023

Using behavioral factors (mood, overconfidence, underreaction, overreaction, and herding behavior) as proxy variables in the Vietnamese stock market, this article tries to explore the link between investor demographics (gender, age, experience, and educational ability) and their investment decisions. This study compiles information from a structured questionnaire survey of 400 local, international, institutional, and individual investors in Vietnam. It employed partial multiple regression to examine how investors' demographic variables affected their investment choices using behavioral traits as mediator variables. According to the results, investor emotion, overconfidence, over/underreaction, and herd behavior all have a large impact on investing decisions. Additionally, investors' investing selections are significantly and favorably influenced by their age, gender, and degree of education. Although experience does not have a significant effect on financial decisions, investors start to ignore emotional aspects as they become more experienced.
Social responsibility and modern business during the global crisis: Threat or opportunity for the GUAM member countries
Authors: Tiurina Alona , Petrunenko Iaroslav , Guliyeva Shafa , Qazizade Elnara , Aliyeva Tahmina
Published: March 2023

The article aims to substantiate the relationship between the components of corporate social responsibility in business (CSR) during the economic integration of the GUAM member countries on the principles of sustainable development. We used the questioning to determine the structural elements of CSR of the GUAM member countries and econometrically analyzed the level of development of CSR for each country. The GUAM countries' hierarchical structure of CSR business was established using the Granger causality test and the graph method. This study proves that in times of crisis, along with economic responsibility, a fundamental role is played by national responsibility in ensuring justice, equality, and peace (for Georgia, Azerbaijan, and Moldova). And in the conditions of a full-scale war (in the example of Ukraine), national responsibility, responsibility in ensuring justice and equality, and peace are more significant than economic responsibility. The conclusions obtained are practical and may help develop strategies for effective economic cooperation between countries within the framework of GUAM.
PENGARUH FAKTOR-FAKTOR PRODUKSI TERHADAP HASIL TANGKAPAN NELAYAN JARING INSANG (GILLNET) DI PERAIRAN WADUK PANGLIMA BESAR SOEDIRMAN KABUPATEN BANJARNEGARA
Authors: Kurnia Dhimas Ragil , Sukardi Purnama , Iqbal Achmad
Published: March 2023

Waduk Panglima Besar Soedirman, Kabupaten Banjarnegara, merupakan waduk dengan fungsi untuk pembangkit listrik, irigasi pertanian, pariwisata, budidaya dan penangkapan ikan. Jaring Insang (Gillnet) merupakan salah satu alatv tangkap yang banyak digunakan oleh nelayan perairan Waduk PB Soedirman. Tujuan dari penelitian ini adalah untuk mengetahui faktor-faktor produksi penangkapan ikan menggunakan gillnet dan pengaruhnya terhadap hasil tangkapan nelayan. Penelitian ini dilaksanakan pada bulan Juni sampai dengan Agustus 2019. Data faktor-faktor produksi penangkapan ikan dan hasil tangkapan dianalisis menggunakan rumus fungsi produksi Cobb-Douglas untuk mengetahui pengaruh faktor-faktor produksi terhadap hasil tangkapan nelayan. Faktor-faktor produksi penangkapan ikan menggunakan gillnet yaitu panjang jaring (X1), lebar mata jaring (X3), lama waktu penangkapan (X4), umur nelayan (X5) dan pengalaman nelayan (X6), secara bersama-sama memberikan pengaruh signifikan terhadap hasil tangkapan nelayan (Y), pada tingkat kepercayaan 95%. Secara parsial atau satu per satu, pada tingkat kepercayaan 95%, hanya panjang jaring (X1), lebar mata jaring (X3), lama waktu penangkapan (X4) dan pengalaman nelayan (X6) yang memberikan pengaruh signifikan terhadap hasil tangkapan nelayan (Y).
DAMPAK RUMPON TERHADAP KEBIASAAN MAKAN DAN HUBUNGANNYA DENGAN KEBERLANJUTAN SUMBERDAYA IKAN
Authors: Prayitno Muhamad Riyono Edi , Hakim Muhammad Romdonul , Rahman Abdul
Published: March 2023

Penggunaan rumpon oleh nelayan di perairan Samudera Hindia semakin marak. Ikan yang berkumpul di sekitar rumpon lebih mudah untuk ditangkap, sehingga hasil tangkapan nelayan meningkat. Meski demikian, terdapat kekhawatiran akan adanya dampak ekologis dari penggunaan rumpon yang terlalu banyak terhadap keberlangsungan sumberdaya ikan. Kurangnya sumber makanan di sekitar rumpon dapat menggiring kepada terjadinya kelaparan pada ikan-ikan yang berasosiasi dengannya. Kurangnya makanan dapat berdampak buruk pada kemampuan ikan untuk berkembangbiak. Penelitian ini bertujuan untuk mengidentifikasi jenis ikan yang tertangkap di sekitar rumpon, mengetahui kondisi lambung dan jenis makanan ikan yang berasosiasi dengan rumpon dan menentukan dampak rumpon terhadap keberlangsungan sumberdaya ikan. Penelitian dilakukan dengan mengidentifikasi jenis ikan yang ditangkap menggunakan pukat cincin dan pancing ulur di sekitar rumpon laut dalam yang dipasang di Samudera Hindia selatan Jawa. Metode penelitian yang digunakan yaitu metode deskriptif, dengan aspek yang dikaji yaitu kondisi kepenuhan lambung dan jenis makanan ikan yang berkumpul di sekitar rumpon Sebanyak 279 sampel ikan dari berbagai jenis dibedah lambungnya untuk mengetahui kondisi kepenuhan lambung dan jenis makanannya. Terdapat 16 jenis ikan yang tertangkap di sekitar rumpon. Persentase ikan dengan lambung kosong yaitu 44%. Jenis makanan ikan yang ditangkap dengan pukat cincin yaitu lemuru, teri, dan cumi-cumi, sedangkan ikan yang ditangkap dengan pancing ulur memakan lemuru, teri, cumi-cumi, tongkol, cakalang, layang, udang dan larva Stomatopoda. Penggunaan rumpon dapat menimbulkan dampak negatif berupa kompetisi dalam memperoleh makanan yang ketersediaannya terbatas. Kondisi ini dapat mengganggu keberlangsungan sumberdaya ikan.
DOSIS DAN LAMA PERENDAMAN MINYAK CENGKEH (Eugenia aromatica) TERHADAP DURASI INDUKSI DAN SEDATASI PADA ANESTESI IKAN CEMPEDIK (Osteochilus spilurus)
Authors: Kurniawan Ardiansyah , Arezki Tio , Sari Suci Puspita
Published: March 2023

Percepatan Pulau Belitung sebagai tujuan wisata geologi menempatkan produk berbasis ikan Cempedik (Osteochilus spilurus) sebagai salah satu geo-produknya. Hal ini berpotensi memicu adanya distribusi ikan dari pulau lain ke Belitung Timur. Salah satu kelemahan ikan Cempedik adalah lebih cepat mengalami pembusukan pada bagian perut. Transportasi dalam kondisi hidup menjadi salah satu pilihan mendistribusikan ikan ini. Penelitian ini bertujuan untuk mengetahui durasi hingga pingsan (induksi) dan pulih sadar (sedatasi) Ikan Cempedik dengan memanfaatkan minyak Cengkeh sebagai anestesi dalam transportasi hidup. Minyak Cengkeh murni digunakan sebagai anestesi ikan pada perlakuan dosis dan lama perendaman berbeda dengan tiga kali ulangan. Dosis yang digunakan adalah 0.1, 0.2, 0.3, 0.4, dan 0.5 ml/10L, sementara lama perendaman pada 2.5, 4, 6.5, dan 8 jam. Data dianalisis dengan sidik ragam dan uji Tukey. Perlakuan dosis memberikan dampak berbeda nyata (P>0,05) pada durasi induksi, namun tidak pada durasi sedatasi. Durasi induksi tercepat yaitu 2.32±0.75 menit dihasilkan pelakuan dosis 0,4 ml/10L yang menghasilkan durasi sedatasi selama 4.17±1.20 menit. Tidak terdapat perbedaan nyata durasi sedatasi ikan pada perlakuan lama perendaman yang berbeda.
PENGARUH PEMBERIAN TEPUNG MAGOT (Hermetia illucens) PADA PAKAN KOMERSIAL TERHADAP PERTUMBUHAN IKAN KOKI (Carassius auratus)
Authors: Prama Ega Aditya , Kristiana Indra , Astiyani Wahyu Puji , Prajayanti Vini Taru , Hisina Iqdas Adlin
Published: March 2023

Ikan Mas Koki (Carrasius auratus) merupakan salah ikan hias yang memiliki nilai ekonomis tinggi dan pasngsa pasar yang stabil. Pakan merupakan salah satu faktor penting untuk meningkatkan pertumbuhan ikan mas koki. Pakan yang baik akan bedampak pada pertumbuhan ikan mas koki yang lebih cepet. Magot merupakan salah satu alternatif pakan alami yang dapat digunakan untuk meningkatkan pertumbuhan ikan mas koki. Penambahan tepung magot kering pada pakan memberikan dampak yang positif pada pertumbuhan ikan mas koki. Pada penelitian ini dilakukan penambahan tepung magot kering dengan dosis K (100% Pakan buatan), A (25% Tepung magot : 75% Pakan buatan), B (50% Tepung magot : 50% Pakan buatan), C (75% Tepung magot : 25% Pakan buatan), D (100% Tepung magot). Hasil penelitian terbaik untuk parameter pertumbuhan terdapat pada perlakuan C dengan pertumbuhan bobot sebesar 5,92 gram dan SGR sebesar1,77%, sedangkan untuk survival rate tertinggi pada perlakuan A sebesar 95%, pada perlakuan K, B dan C sebesar 93% sedangkan untuk perlakuan D sebesar 91%.Goldfish (Carrasius auratus) is an ornamental fish with a high economic value and a stable market share. Food is one of the important factors to promote the growth of goldfish. Good food influences a faster growth of goldfish. Magot is an alternative natural food that can be used to increase the growth of goldfish. The addition of dry magot meal to the feed has a positive influence on the growth of goldfish. In this study, the addition of dry magot meal with a dose of K (100% artificial food), A (25% Magot meal: 75% artificial food), B (50% Magot meal: 50% artificial food), C (75% Magot meal: 25% Artificial feed), D (100% Magot flour). The best study results for growth parameters were in treatment C with a weight gain of 5.92 grams and SGR of 1.77%, while the highest survival rate was in treatment A at 95%, in treatment K, B and C at 93% while treatment D by 91%.
PROFIL USAHA PENGOLAHAN NUGGET IKAN GABUS DI UMKM RINA
Authors: N Dwi Yolanda , Sobariah Sobariah
Published: March 2023

Nugget adalah produk olahan yang menggunakan teknologi restrukturisasi dengan memanfaatkan potongan daging yang relatif kecil dan tidak beraturan, kemudian dilekatkan kembali menjadi ukuran yang lebih besar dengan penambahan bahan pengikat (Moedjiharto, 2002). Penelitian dilakukan untuk mengetahui sistem bisnis usaha dan teknologi pengolahan nugget ikan gabus di UMKM Rina . UMKM Rina adalah salah satu usaha mikro kecil menengah yang berlokasi di Kecamatan Lubuk Pakam Kabupaten Deli Serdang Provinsi Sumatera Utara. Penelitian dilakukan selama 30 hari mulai dari tanggal 01 Juni 2021 sampai dengan 30 Juni 2021 dengan sasaran dua responden dari tenaga kerja usaha. Analisis data dilakukan dengan metode analisis kuantitatif dan kualitatif yang dianalisis secara deskriptif. Analisis meliputi aspek sistem bisnis pengolahan nugget ikan gabus dan analisis usaha yang meliputi komponen pendapatan, keuntungan, dan analisis kelayakan usaha R/C ratio, PP, ROI, dan BEP. Usaha pengolahan nugget ikan gabus dilakukan mulai dari penyediaan pasokan input, proses produksi, pasca produksi hingga pemasaran. Ketersediaan bahan baku, modal dan tenaga kerja serta penyediaan sarana dan prasarana telah terpenuhi sehingga kegiatan terlaksana dengan baik. Proses produksi dilakukan melalui proses yang cukup baik sehingga menghasilkan produk nugget ikan gabus yang layak dikonsumsi. Berdasarkan R/C Ratio 1,8 dan PP 149 hari (4,9 bulan) menunjukkan usaha pengolahan nugget ikan gabus layak untuk dilanjutkan.
RESPON PERTUMBUHAN SEMAIAN MANGROVE Rhizophora sp. PADA BERBAGAI JENIS MEDIA TANAM
Authors: Rahman Abdul , Prayitno Muhamad Riyono Edi , Sembiring Kennedi , Apriliani Izza M.
Published: March 2023

Rhizopora merupakan jenis tanaman bakau yang dominan ditanam oleh masyarakat di kawasan pesisir Pangandaran. Bakau jenis ini dipilih karena pertumbuhannya yang baik pada substrat jenis lumpur yang banyak terdapat di muara-muara sungai yang ada di Pangandaran. Perbanyakan bibit jenis Rhizopora pun tergolong mudah. Namun demikian belum banyak masyarakat yang secara khusus mengembangkan pembibitan bakau jenis Rhizopora, sehingga terkadang bibitnya harus didatangkan dari derah lain. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan bibit mangrove yang ditanam pada polibag dengan media berupa pasir, tanah merah, lumpur dan serbuk kelapa/cocopeat. Rancangan Acak Lengkap digunakan sebagai metode percobaan dengan perlakuan berupa empat media tanam yang berbeda dengan 50 ulangan. Total bibit Rhizopora yang ditanam yaitu sebanyak 200 bibit. Hasil pengamatan selama 60 hari dianalisis menggunakan analisis ragam dan uji Beda Nyata Terkecil. Pertumbuhan bibit tanaman pada keempat media tanam berbeda secara nyata dengan pertumbuhan rata-rata yang lebih baik yaitu pada media tanah sebesar 5,64 cm dan media lumpur sebesar 5,55 cm. Pertumbuhan rata-rata bibit pada media pasir dan cocopeat  lebih lambat yaitu masing-masing sebesar 5,25 cm dan 5,19 cm.Rhizopora is the dominant type of mangrove planted at coastal area by the people of Pangandaran . This type of mangrove was chosen because of its good growth on mud-type substrates that are widely found in river estuaries in Pangandaran. Propagation of Rhizopora seeds is also relatively easy. However, not many people have specifically developed Rhizopora mangrove nurseries, resulting the seeds have to be imported from other areas. This study measures the growth response of mangrove seedlings planted in polybags with four different media namely beach sand, red soil, mangrove mud and cocopeat. Completely randomized design was used as the experimental method with four different growing media as the treatment with 50 replications. The total number of Rhizopora seeds planted was 200 seedlings. The results of observations for 60 days were analyzed using analysis of variance and the Least Significant Difference test. The growth of plant seeds on the four planting media was significantly different with a better average growth of 5.64 cm in soil media and 5.55 cm in mud media. The average growth of seedlings on sand and cocopeat media was slower, which was 5.25 cm and 5.19 cm, respectively.
PENGARUH PASANG SURUT PADA PEMBENIHAN IKAN KAKAP PUTIH (Lates calcarifer) SECARA ALAMI
Authors: Prajayanti Vini Taru Febriani , Prama Ega Aditya , Arif Gusti Nu’man , Pietoyo Atiek
Published: March 2023

Ikan kakap putih merupakan spesies ikan budidaya di Indonesia yang memiliki permintaan pasar yang terus meningkat. Tujuan dari penelitian ini adalah untuk mengetahui seberapa besar pengaruh pasang surut pada pembenihan ikan kakap putih (Lates calcarifer) secara alami. Analisis data disajikan dengan teknik analisis deskriptif kuantitatif. Pengaruh pasang surut terhadap pemijahan ikan kakap putih di dapatkan nilai terbaik pada pemijahan ke-1 dengan nilai fekunditas sebesar 750.000 butir telur, nilai fertilization rate (FR) sebesar 74 % atau sebanyak 555.000 butir telur terbuahi, nilai hatching rate (HR) sebesar 64% atau sebanyak 355.200 ekor larva dan survival rate (SR) dengan nilai sebesar 25,3% atau sebanyak 89,865 ekor benih ikan.Barramundi is a cultivated fish species in Indonesia which has an ever-increasing market demand. The purpose of this research is to find out how big effect of tides on seeding natural spawning of  white snapper fish (lates calcalifer). Data analysis was presented with a quantitative descriptive analysis technique. The effect of tides on the spawning of barramundi obtained the best value at the 1st spawning with a fecundity value of 750,000 eggs, fertilization rate (FR) value of 74% or as many as 555,000 fertilized eggs, hatching rate (HR) value of 64% or as many as 355,200 larvae and survival rate (SR) with a value of 25.3% or as many as 89,865 fish fry.
Pigeon mite: An underdiagnosed cause of papular urticaria
Authors: Gharagozlou Saber , Tavakol Marzieh , Gharagozlou Mohammad
Published: March 2023

Background: Dermanyssus gallinae, known as bird mite, generally lives on nestlings’ featherless skin. Humans are accidentally infected, and itchy dermatitis is induced when the mites are unable to use birds’ blood. The diagnosis is difficult due to the very small size and rapid movement of the mites, which make them hard to spot.
Case presentation: A 14-year-old male and his mother were referred to the allergy clinic complaining of a 2-week generalized itchy cutaneous papular lesion, unresponsive to antihista-mines, with the feeling of an insect moving on the surface of the skin. Due to the history of recently hatched pigeons nesting on their balcony and finding very small bugs, diagnosed as D. gallinae, they were instructed to clean the pigeon’s nest as the source of these parasites, which successfully solved the problem.
Conclusion: Bird mite infestation should be considered in the differential diagnosis of recurrent pruritus and urticaria, refractory to conventional treatments. Physicians should be aware of this mite infestation in approach to any patient with papular urticaria.
CARACTERIZAÇÃO DO MINÉRIO DE ZINCO, CHUMBO E PRATA DA MINA DO EXTREMO NORTE
Authors: Figueiredo Thiago Duarte , Rodrigues Guilherme Henrique Gualandi , Silva Paulo Henrique Liberato da , Nogueira Francielle Câmara , Pereira Carlos Alberto , Rodrigues Karine Fernandes
Published: March 2023

A jazida do Extremo Norte consiste em um corpo de minério de zinco, chumbo e prata predominantemente não sulfetados localizado na região de Vazante, Minas Gerais, Brasil. Devido a sua mineralogia complexa, o minério do Extremo Norte não apresenta bons índices de recuperabilidade durante as etapas de beneficiamento, especialmente em relação ao minerais portadores de chumbo. Desta forma, é fundamental o melhor conhecimento das características do minério do Extremo Norte, a fim de determinar as principais propriedades do mesmo e entender melhor o seu comportamento, possibilitando melhorias nos processos de beneficiamento e o consequente aumento nos índices de recuperação. Sendo assim, este trabalho propõe a realização de estudos de caracterização do minério da mina do Extremo Norte, determinando valores de massa específica e work index, além da realização da análise granulométrica, mineralógica e química do mesmo. A caracterização do minério evidenciou a hematita e dolomita como principais minerais constituintes, além da willemita, piromorfita e jalpalita como principais minerais de zinco, chumbo e prata do minério. Os teores dos elementos de interesse do minério foram determinados em 9,24% de zinco, 3630 ppm de chumbo e 9,3 ppm de prata, ocorrendo predominantemente em frações finas, inferiores à 38 µm. Os valores de work index e massa específica do minério foram determinados em 23,45 kWh/t e 3,71 g/cm³, respectivamente.
Changes in in vitro GM-CSF-exposured monocyte subset composition and phagocytic activity in children with infectious mononucleosis
Authors: Savchenko Andrei A. , Martynova Galina Petrovna , Ikkes Lyubov A. , Borisov Alexandr G. , Kudryavtsev Igor V. , Belenjuk Vasilij D.
Published: March 2023

The aim of the study was to investigate the features of changes in the monocytes subset composition and phagocytic activity in children with infectious mononucleosis (IM) exposed to granulocyte-macrophage colony-stimulating factor (GM-CSF) in vitro. We examined 84 children aged 3 to 11 years with EpsteinBarr virus (EBV) infection diagnosed by clinical signs, positive EBV DNA test in blood lymphocytes and ELISA data (EBV-VCAIgM (+), EBV-EA-DIgG (+)). The control group consisted of 40 apparently healthy age-matched children. Monocytes were obtained by the standard method on adhesion to plastic from mononuclear cells isolated from heparinized venous blood by density gradient centrifugation. The isolated monocytes were divided into two samples: control (without GM-CSF) and experimental (50 ng of GM-CSF per 1 ml of cell suspension). The monocyte subset composition and phagocytic activity in both samples were measured by flow cytometry after 1-hour incubation at 37C ina CO2-incubator. It was found that in children with progressing IM, the blood monocyte subpopulation composition changes and their phagocytic activity is impaired. It was found that the subset composition and phagocytic activity of the blood monocytes changed in children during development of IM. Changes in the subset composition of monocytes in acute IM did not depend on the age group of children (36 and 711 years) and were characterized by increased number of pro-inflammatory (intermediate) monocytes and decreased level of anti-inflammatory (non-classical) monocytes. Features of altered monocyte phagocytic activity in children with IM depended on age. The phagocytic activity of all three monocyte subsets was reduced in children with IM 36 years old while children with IM 711 years old had reduced phagocytic activity only in intermediate and non-classical monocytes. The effect of GM-CSF in vitro on monocytes in patients with IM, regardless of the age of children, led to significantly increased level of anti-inflammatory monocytes while the phagocytic activity of cells changed less. An increase in the phagocytic number for classical monocytes after incubation with GM-CSF in vitro was noted in children with IM at the age of 36 years while the phagocytic index of this fraction of monocytes remained unchanged. The level of the phagocytic index increased only in classical monocytes of children with IM aged 711 years. The presented results determine the scientific and clinical value of studying the mechanisms of the effect of GM-CSF on cells of the immune system and prove that this cytokine can be used in a new immunotherapeutic strategy for the treatment of IM.
Dynamics in maturation of SARS-CoV-2 RBD-specific IgG antibody avidity depending on immunization timeframe and type
Authors: Kudryashova Alexandra M. , Manuylov Victor A. , Murzina Alyona A. , Kaira Alla N. , Borisova Olga V.
Published: March 2023

The aim is to examine dynamics of avidity maturation of IgG antibodies against SARS-CoV-2 RBD depending on the type of immunization (vaccination or infection), as well as on the duration and frequency of immunization. Materials and methods. The study was performed on two sample cohorts collected at two time points during COVID-19 pandemic. The first cohort (group No. 1) consisted of 87 samples of blood sera obtained from COVID-19 convalescents in the period from March to September 2020. The second cohort included 204 samples obtained in September 2021 from two patient groups. Group No. 2 (n = 64) patients immunized with a full course of Gam-Covid-Vac, group No. 3 (n = 140) COVID-19 convalescent patients and subjects vaccinated with Gam-Covid-Vac (hybrid immunity). Results and conclusion. The dynamics of avidity maturation for SARS-CoV-2 RBD IgG antibodies depending on the method and frequency of immunization, showed that the most effective immunity was formed in COVID-19 convalescent patients and subjects vaccinated with a full course of Gam-Covid-Vac. The hybrid immunity showed not only a significantly higher (compared with groups No. 1 and No. 2) level of IgG antibodies (median 228 BAU/ml vs 75 or 119 BAU/ml, p 0.001), but also a higher level of avidity (IA 90.5% vs 54.5 and 76.6, respectively, p 0.001, 4M urea). In the test for assessing the avidity index with the denaturing agent 8M urea in patients with hybrid immunity, the median level of IA was 25% versus 14.8% and 16% in COVID-19 convalescents and vaccinated subjects (p 0.001), only in 8 patients IA was higher than 50%. While comparing a single infection of COVID-19 with a full course of Gam-Covid-Vac, it was shown that vaccination leads to higher IgG levels (median values in groups 119 and 75 BAU/ml, p 0.001) and to a higher avidity index (median 76.6% vs 54.5%). Thus, the more rapid induction of high-avidity antibodies was in vaccinated individuals at early stages of immunization (up to 4 months), during the period when IgG avidity maturation has not yet been completed. Our results showed that during this period vaccination leads to production of antibodies with avidity index at median level of 82% versus 36% in COVID-19 convalescents at similar time point.
Systemic Candidosis Diagnostic Test with Candida Score and Monocyte Count in Premature Infants with Late-Onset Sepsis: Research in Low Resources Country
Authors: Ratridewi Irene , Amalia K. , Huwae T. E.C.J. , Putera M. A. , Sulistijono E.
Published: March 2023

Introduction. Candida is the cause of most systemic fungal infections that plays a role in the pathophysiology of sepsis in newborns, especially in premature infants with late-onset sepsis. The Candida score can be used to assess the occurrence of systemic candidosis where a Candida score 2.5 can accurately identify patients who are at high risk for candidiasis infection. Monocytes also play an important role in preventing candida invasion. Materials and methods. This study used a cross sectional research design. Data was collected from premature infants with late-onset sepsis being suspected of systemic candidosis in neonatology inpatient ward. It was submitted from the period of November-December 2021. It takes a minimum of 31 samples to meet the criteria to process and analyze the data. The data obtained were processed and analyzed using the Receiver Operating Characteristic (ROC) method to obtain the Area Under Curve (AUC) value. Based on the AUC curve, the search for the most optimal intersection is carried out to obtain the sensitivity and specificity values. Results. Of the 31 research subjects, the number of subjects with positive PCR results was 27 (76.93%) while negative were 4 respondents (12.9%). The mean value of PCR density in the positive group of subjects was 76.93 and the range was 40.23122.78. Meanwhile, in the group of subjects who were negative, the PCR density value was 0. The results of the Candida score diagnostic test showed that the sensitivity obtained was 81%. Higher sensitivity and specificity 70% were found in the combined examination of Candida scores and monocyte counts according to cut-off compared with separate examinations. Conclusions. The combined examination of Candida score and monocyte count can be used as a diagnostic test for systemic candidosis in premature infants with late-onset sepsis, and could be used to consider the initiation of empirical antifungal therapy, either prophylactically or therapeutically, especially in limited laboratory facilities in Indonesia.
Ugdymo(si) šeimoje procesas: teorinis konceptas ir teisinis reglamentavimas
Authors: Naidaitė Edita , Stasiūnaitienė Eglė
Published: March 2023

Straipsnyje analizuojamas ugdymo(si) šeimoje proceso organizavimas Lietuvoje. Pasirinkta aprašomoji reiškinio tyrinėjimo prieiga, taikant iš dalies struktūrizuotos turinio (angl. content) analizės metodiką. Straipsnio tikslas – išryškinti ugdymosi šeimoje sampratos ir proceso teisinio reglamentavimo diskusinius klausimus. Išanalizavus teisės aktus, darytina išvada, kad dokumentuose stokojama aiškaus ugdymo(si) šeimoje proceso dedamųjų reglamentavimo.
Application of the Delphi Method for the identification of relevant variables in the development of low-power photovoltaic solar projects in Colombia
Authors: Valencia Llanos Jairo Alberto , Reyes Viviescas Danna Liceth , Arroyo Pineda Mariana
Published: March 2023

Introduction: This paper is the product of the investigation “Identification of relevant variables in the development of photovoltaic solar projects in Colombia” developed at the Universidad Distrital Francisco José de Caldas (UDFJC) between 2020 and 2021. Due to the increase in the number of photovoltaic energy projects in Colombia, it is necessary to quantify the level of relevance related with the factors involved in order to optimize the planning and execution processes.
Methods: In this research, the Delphi methodology is applied to evaluate a set of variables selected from literature, putting them to an evaluation by a group of experts with the purpose of quantifying the relationship, under a subjective judgment, between those variables and parameters immersed in low power photovoltaic solar projects in Colombia. Together with the Delphi method, the Torgerson Model was used to quantify what experts said, in order to determine which variables are the most relevant ones to the experts. Subsequently, the validation of these answers is carried out with the application of a second evaluative stage throughout the application of structured instruments.
Resultados: Luego de obtener el consenso general, se analizan los resultados con el ideal de identificar las variables que obtuvieron un mayor nivel de relevancia, en las cuales se identificaron seis variables relevantes.
Conclusiones: Este trabajo muestra cómo los resultados de los procesos de investigación obtienen las variables más relevantes, siendo 6 variables en total, y se analiza su impacto.
Originalidad: Aplicando el método Delphi, es posible encontrar las variables más relevantes en el desarrollo de proyectos solares fotovoltaicos de baja potencia en Colombia, haciendo de este trabajo un elemento importante en el avance de las energías renovables.
Limitación: No se logró una muestra masiva de resultados por la dificultad de contactar a los profesionales adecuados en el área analizada.
Narrativas de mulheres mães: vivências e ressignificações diante da prematuridade extrema
Authors: Cardoso Vanessa Thomazini , Toni Caroline Guisantes de Salvo
Published: March 2023

INTRODUÇÃO: A partir do nascimento pré-termo, a maternidade é convocada prematuramente, pois o tempo final da gestação não pode ser vivido e o que foi idealizado não se concretiza. Dessa forma, a mulher mãe precisa ressignificar seu papel e a própria maternidade, reestruturando seu sistema cuidador para dar conta da situação real que se apresenta. O nascimento prematuro insere muitas dificuldades para a mulher, influenciando em momentos estressantes e deflagrando sentimentos de frustação, culpa, ansiedade, tristeza, medo, entre outros. OBJETIVO: Compreender as dificuldades, emoções e sentimentos presentes durante o nascimento e hospitalização dos recém-nascidos pré-termos extremos e como a(s) maternidade(s) puderam ir se construindo nesse contexto. MÉTODO: Estudo qualitativo, com coleta de narrativas de mulheres que compartilharam suas experiências em um site especializado na internet. A análise foi realizada a partir da Análise de Conteúdo, utilizando como embasamento teórico a teoria do apego. RESULTADOS: As narrativas retratam uma alta expectativa em relação ao nascimento dos bebês, bem como a frustração e angústia geradas a partir da necessidade de uma separação brusca e literal. Ainda, os momentos foram marcados por uma rotina exaustiva e pelo medo do bebê vir a óbito, além da necessidade de aprenderem a reconhecer os sinais sutis dos bebês e construir modos de cuidados possíveis. As narrativas trabalhadas foram/são uma maneira que elas encontraram para relatar suas histórias e de ressignificar o vivido. CONSIDERAÇÕES FINAIS: Destaca-se a importância de haver o reconhecimento das vivências maternas nesse contexto para que melhorias no acolhimento prestado e construção de políticas públicas sejam possíveis de serem realizadas.
Fluent Reading Skills of Learners of Turkish as A Foreign Language
Authors: GÜNGÖR Haluk , KARATAY Halit
Published: March 2023

This study utilized a “sequential descriptive pattern”, one of the mixed method designs with a view to (doing what? Please state the aim here). The qualitative data were collected through the analysis of the participants’ oral reading voice recordings. Data on oral reading prosody were collected using the “Prosodic Reading Scale” and the quantitative data on reading speed and accurate reading were collected through the analysis of oral reading recordings. Whilst Spearman's rank correlation coefficient was utilized to determine the relationship between the data that did not distribute normally, Pearson’s correlation coefficient was employed to test the relationship between the data that distributed normally. Analysis results indicated a negative, low-level, and significant relationship between the participants’ oral reading errors and reading comprehension skills. While there was a positive, weak, and nonsignificant relationship between prosodic reading scores and reading comprehension skills in the A1-level, there was a positive, low-level, and significant relationship in the C1 level. It was found that oral reading speed, prosody, and oral reading errors did not predict fluent reading skills in the A1 level, and the model established was significant, but the dependent variables did not predict reading comprehension skill in the A2 level. In B1 and C1 levels, the regression model established in both levels were significant, and the rank of importance of the variables on oral reading comprehension was found as oral reading speed and oral reading errors.
Formálódó peremterületek: a szegénység és a jóléti szuburbanizáció egymás mellett élése hazai városok példáján
Authors: Vasárus Gábor László , Szalai Ádám
Published: March 2023

A hazai településhálózat sajátossága, hogy a települések magját alkotó belterületek mellett a külterületeken és a belőlük létrehozott egyéb belterületeken is életvitelszerűen laknak. A vidéki centrumok újrastruktúrálódó peremterületein a térfolyamatok települési szint alatt is differenciálódnak, gyorsan városiasodó terek mellett rurális zárványok alakulnak ki. Kutatásunk során Győr, Szeged, Zalaegerszeg valamint Hódmezővásárhely és környezetük mintaterületén vizsgáltuk meg, hogy a szegregáció hogyan jelenik meg a helyi lakosság és a döntéshozók diskurzusában, továbbá megpróbáltuk feltárni néhány, a szegregáció fennmaradásához hozzájáruló településföldrajzi és jogi tényezőt.

A felmérés alapján az etnikai szegregáció mellett jelentős a jövedelmi különbségekre visszavezethető elkülönülés, és esetenként a külterületek földrajzi izolációja miatt az ott élők súlyos hátrányokat szenvednek el. 1990 után és a 2008-ban kibontakozó pénzügyi válság következtében a prekariátushoz tartozó háztartások nagy arányban áramlottak ezekre a területekre, nagyrészt a városból kiszorulók, vagy a távoli vidéki falvakból az elhelyezkedés reményében érkezők. A társadalmi tőkék torzult jellegéből adódóan a megkötő tőke túlereje, a városvezetők társadalmi problémák felett „szemet hunyó” gyakorlata mellett a földügyi és építészeti szabályozás is hozzájárult ahhoz, hogy a rendszerváltástól napjainkig szegregátumok alakuljanak ki, azonban a helyi diskurzusban jóval több területet tartanak számon szegregátumként, mint ahány a terepi felmérés alapján ténylegesen annak tekinthető.
The Quality of Life of the European Population: SHARE Data-based Analysis
Authors: Malá Ivana
Published: March 2023

The quality of life, well-being and deprivation are significant factors affecting the ageing European population. The fifth (2013) wave of the Survey of Health, Ageing and Retirement in Europe (SHARE) covers the two indices of (material and social) deprivation along with various life quality and satisfaction indicators measuring (subjective and objective) well-being. Using the SHARE data, the present paper examines the 50+ population in 13 EU member states and Switzerland, emphasizing the relationships between distinctive characteristics. The gender gap is quantified for both the whole sample and particular age groups. Statistical comparisons between old and new EU countries are limited since only three of the latter (Estonia, Slovenia and the Czech Republic) took part in the 2013 SHARE survey.
A New Poisson Generalized Lindley Regression Model
Authors: Atikankul Yupapin
Published: March 2023

In this paper, a new count distribution is introduced. It is a mixture of the Poisson and generalized Lindley distributions. Statistical properties of the proposed distribution including the factorial moments, probability generating function, moment generating function and moments are studies. Maximum likelihood estimators of unknown parameters are derived. Moreover, an alternative count regression model based on the proposed distribution is presented. Finally, the proposed model is applied for real data and compared with other well-known models.
Anti-Sum-Asymmetry Models and Orthogonal Decomposition of Anti-Sum-Symmetry Model for Ordinal Square Contingency Tables
Authors: Ando Shuji
Published: March 2023

For the analysis of C × C square contingency tables, we usually estimate using a statistical model an unknown probability distribution with high confidence from obtained observations. The statistical model that fits the data well and is easy to interpret is preferred. The anti-sum-symmetry (ASS) and anti-conditional sum-symmetry (ACSS) models have a structure that the ratio of the probability with which the sum of row and column levels is t, for t = 2, . . . , C, and the probability with which the sum of row and column levels is 2(C + 1) − t is always one and constant, respectively. This study proposes two kinds of models that the ratio of those changes exponentially depending on the sum of row and column levels. This study also gives the decomposition theorems of the ASS model using the proposed models. Moreover, we show that the value of the likelihood ratio chi-squared statistics for the ASS model is asymptotically equivalent to the sum of those for the decomposed models. We evaluate the advantage of the proposed models by applying they to a single data set of real-world grip strength data.
A Statistical Analysis of the Water Levels at Lake Neusiedl
Authors: Hackl Peter , Ledolter Johannes
Published: March 2023

The recent low water levels of Lake Neusiedl have raised concern about the lake's future and have sparked interest on how meteorological variables impact the water level. Data from the last 50 years are used to study the impact of rain and temperature on the cyclical changes of the water levels. Linear and nonlinear regression models are used to describe how rainfall and temperature change the water level, and to assess the future progression of the water level under three scenarios. For average 2022 meteorological conditions the water levels in 2022 may not recover for a dry 2021 autumn, but will recover substantially for a wet ending to the year 2021.
Perfil sociodemográfico de usuárias de substâncias psicoativas em um município do Sul do Brasil
Authors: Ribas Paulo Gustavo de Lima , Richter Tamara Tomitan , Marques Fernanda Hoffmann , Bernuci Marcelo Picinin , Silva Tânia Maria Gomes
Published: March 2023

Os homens sempre foram os principais usuários de substâncias psicoativas, mas, nas últimas décadas, tem-se observado aumento significativo no número de dependentes do sexo feminino. As mulheres apresentam respostas fisiológicas diferentes a esse uso; ademais, sofrem maior estigma social em razão da dependência química. O presente estudo buscou conhecer o perfil de mulheres usuárias de substâncias psicoativas em Maringá (PR). Possui caráter transversal, utilizando dados do Relatório Circunstanciado dos Atendimentos voltados a esse público, no período de 2012 a 2019. Os dados foram analisados de forma descritiva. Foram registrados 8.888 atendimentos, distribuídos em distintas unidades de saúde ou de assistência social. As usuárias eram majoritariamente jovens, solteiras, com filhos, com escolaridade mediana, realizavam trabalhos informais e tinham renda mensal inferior a um salário mínimo. O conhecimento desse perfil possibilita a acolhida e o melhor desenvolvimento de estratégias promotoras da saúde, levando em conta as desigualdades relacionadas.
Differentiation Learning Model for Students with Special Needs at UNIMA Manado
Authors: Dapa Aldjon Nixon , Undap Tiersa R.
Published: March 2023

Differentiated learning is a learning approach process for students with different abilities in the same class. The purpose of differentiated learning is to maximize the growth/progress of each student and individual success through the adjustment of each student (from where he or she is), and assistance in the learning process. It is very urgent for students with special needs to be served according to their capacity.. From the research results obtained data, students with special needs at Unima consist of the blind, deaf, and physically disabled, without intellectual barriers, with diverse learning needs. With the act of making a difference in the media and learning models, they are able to master the lecture material well. Universities such as Manado State University, are able to implement it, and have an influence on the optimization and existence of inclusive learning services.
Application of Universal Design Principles in Public Spaces for Persons With Disabilities
Authors: Zulpiani Mardhatillah , Rusyani Endang
Published: March 2023

People with disabilities also need ease of accessibility anywhere that allows them to do all the activities without any interruption of access in order to realize the similarity of opportunity in all aspects of life and livelihood that will aim to realize the independence of those who have obstacles, both physical, intellectual and other. Ease of access to public space is one of the rights to which are owned by them, therefore we need to pay attention to universal design principles so that they also get the right and the opportunity to enjoy the facilities provided by the government. In this research, using library research (library research). The study of literature is a study by using the method of data collection library, or in other words a research object of research is sourced from a variety of literature such as books, encyclopedias, journals and scientific articles. As a result, the application of universal design principles in public spaces for persons with disabilities is still lacking and needs attention. Public space should be a comfortable place for people with disabilities to do activities like the general public.