bluuebunny/crossref_metadata_2025 huggingface dataset:
Volviendo a la cotidianeidad: percepciones de estudiantes de terapia ocupacional que ingresan a prácticas profesionales
Authors: Marchant Castillo José Ignacio
Published: December 2022

La educación en Chile ha sufrido grandes cambios desde el año 2019 debido al estallido social y a la pandemia del COVID-19, dándole oportunidades a la educación a distancia de emergencia de establecerse como el nuevo formato por el cual los estudiantes participan de las diferentes actividades educativas que contempla el proyecto educativo. Frente a esta situación, se realizó un estudio exploratorio-descriptivo que buscó conocer las percepciones de estudiantes de Terapia Ocupacional que inician sus prácticas profesionales, por medio de entrevistas no estructuradas que respetaban los aspectos bioéticos de confidencialidad, y se analizaron los datos recopilados en matrices axiales, categorizándolos en subcategorías emergentes. De ese modo, se obtuvieron seis categorías relacionadas a las habilidades de los estudiantes para afrontar las prácticas, sus expectativas, dificultades, desarrollo e implicancias al participar del nuevo desafío estudiantil. Como conclusión, se alcanzó un aprendizaje poco significativo y varios vacíos en la formación a distancia, sobre todo en la aplicación práctica de estrategias de intervención del área física. Asimismo, se describe como fundamental la práctica profesional presencial para el logro de habilidades sociales del estudiante y el establecimiento del conocimiento teórico, además de ser una instancia única para el aprendizaje del trabajo multidisciplinario y la diferenciación de roles con profesionales de otras áreas disciplinares.
OLHARES CRUZADOS SOBRE O(S) FEMINISMO(S) E A EDUCAÇÃO FEMININA EM PORTUGAL E NO BRASIL NOS ALVORES DO SÉCULO XX DE CARLA BAPTISTA DE FREITAS
Authors: Moniz Ana Isabel
Published: December 2022

Resenha
Geodynamics of Alpine Belt and Caribbean Region: Plate - Tectonics and Plume - Tectonics
Authors: Svalova Valentina
Published: December 2022

The origin and evolution of geological structures reflect lithosphere-asthenosphere interaction in the process of lithospheric plate movement. Mantle diapirs contribute significantly to the sedimentary basins formation in Alpine belt and Caribbean region. Mantle diapirs are the result of density inversion in the asthenosphere–lithosphere system in the periods of tectonomagmatic activations. Increasing heat flow and mantle diapirs on the phone of convergence of Africa and Eurasia in Alpine belt and North and South Americas in Caribbean region produce intercontinental seas in the Cenozoic. The analytical solution of the problem give possibility to find the critical parameters connecting the mantle flow dynamics with surface relief evolution. In Alpine belt, the mantle diapirs form new basins at the final stage of Africa–Eurasia collision in the Cenozoic. In the Caribbean region, great mantle diapir separates the North and South Americas in the Mesozoic, and then the diapir is the source for different smaller diapirs during the convergence of these continents in the Cenozoic. The Gulf of Mexico and Pre-Caspian Depression are connected with mantle diapirs upwelling and have common geological-geophysical features as very rich oil-gas and salt bearing structures. Geodynamics of Alpine belt and the Caribbean region is determined by plume - tectonics on background of plate - tectonics in these regions.
Efecto del riego, la fertilización y el contenedor en la respuesta a la injertación de plántulas de Pinus patula Schltdl. & Cham.
Authors: López Avendaño Edgar David , López López Miguel Angel , Ramírez Herrera Carlos , Aguilera Rodríguez Manuel
Published: December 2022

El éxito de la injertación depende de múltiples factores, algunos especie-dependientes. Sin embargo, existen pocos estudios en Pinus patula relativos a los efectos del manejo del patrón y de la planta compuesta (injertada) sobre el desempeño del injerto. El objetivo del presente estudio fue evaluar el prendimiento y desarrollo de injertos de brotes de Pinus patula en función de factores asociados tanto al patrón, como a la planta injertada. En un experimento factorial 2×2×2, los patrones se sometieron a dos tipos de envase, dos niveles de riego y dos niveles de fertilización un mes antes de la injertación, y se continuó con los tratamientos hasta el término del período experimental. Se evaluó el prendimiento de los injertos (PI), el diámetro basal del injerto (DBI), la longitud del injerto (LI), el índice de robustez del injerto (IR), el incremento en diámetro basal del injerto (IDBI) y el incremento de la longitud del injerto (ILI). Se utilizaron pruebas de Mann-Whitney y de análisis de varianza, seguidos de pruebas de comparación de medias de Tukey (α=0.05). Los factores probados no influyeron estadística ni directamente en el PI, cuyo valor general promedio fue de 72.5 %. Los tipos de contenedor y los niveles de riego y fertilización sí afectaron significativamente las variables morfológicas evaluadas.
Retos ambientales, económicos y sociales, en la cadena de valor del sector maderero de Puebla
Authors: Hernández Hernández Raquel , Mayett Moreno Yesica , Rodríguez Piñeiros Sandra , Fernández Lambert Gregorio
Published: December 2022

El sector forestal mexicano enfrenta sobreexplotación, tala ilegal, deforestación, falta de subsidios gubernamentales y crecimiento agrícola irregular, lo que reduce su competitividad. Este estudio analiza la capacidad de las empresas forestales para adaptarse a los desafíos ambientales, económicos y sociales en el distrito VII de Tehuacán y Sierra Negra del estado de Puebla. Se utilizó un enfoque mixto, de alcance exploratorio y diseño transversal. En 2021, se seleccionaron por conveniencia a 16 productores de madera (aserraderos), 12 comercializadores (madererías) y 38 consumidores finales (constructoras - carpinterías). Se aplicó una encuesta estructurada con datos demográficos; percepciones ambientales y de manejo sustentable (la referencia fueron los Objetivos del Desarrollo Sustentable de la Organización de las Naciones Unidas); organizacionales, legales y socioeconómicos. Los resultados demostraron que el agente más beneficiado durante el COVID-19 fue el aserradero (44 %), que junto con las madererías son empresas familiares (75 % y 92 %, respectivamente). Los encuestados están dispuestos a adaptarse a los desafíos económicos; aunque, su capacidad para enfrentar el desarrollo ambiental y económico será a largo plazo. Los aserraderos intentan proteger y mantener las zonas boscosas, pero carecen de apoyo externo. En el aspecto social, prevalece la participación de los hombres; el consumidor final tiene un mayor interés en el precio de la madera (58 %), que en su origen legal (42 %). En futuras investigaciones se podría aumentar el tamaño de muestra, aplicar un muestreo aleatorio e incluir otras regiones dentro y fuera de México.
Los ambientes áridos y semiáridos: su relación con la dispersión y germinación de especies
Authors: Sánchez Salas Jaime , Estrada Castillón Andrés Eduardo , García Aranda Mario A. , Duarte Hérnandez Mario F. , García González Fabián , Valenzuela Nuñez Luis M. , Muro Dra. Gisela
Published: December 2022

Los ambientes semiáridos son dominados por condiciones extremas que influyen de manera directa en la dispersión y germinación de semillas, así como el establecimiento, desarrollo y mantenimiento de la cubierta vegetal. Este ciclo depende directamente de la disponibilidad del recurso hídrico. Sin embargo, en las zonas semiáridas el agua es limitada, por lo que las especies que ahí habitan presentan adaptaciones para su dispersión como el desarrollo de estructuras y estrategias de movilidad para asegurar su supervivencia. Las etapas de la dispersión hasta el establecimiento de las semillas se manifiestan mediante distintas estrategias o mecanismos para pasar de una fase a otra. Lo anterior aunado a la humedad, la disponibilidad de agua y los sustratos favorecen la dispersión. La interacción de los bancos de semillas y sus estructuras constituyen un factor decisivo para que las especies se adapten a las zonas áridas y semiáridas. Adicionalmente, las microestructuras seminales juegan un papel particular en cada especie al proporcionar ventajas ante las inclemencias que deben sortear, como sucede con el hilo prominente y los tegumentos delgados de las semillas, así como las formas singulares que facilitan no sólo la absorción de agua, sino la dispersión hacia sitios seguros que hagan posible iniciar el proceso de establecimiento.
PERFORMA REPRODUKSI IKAN MOLLY (POECILIA SP.) YANG DIBERIKAN HORMON OODEV MELALUI PAKAN
Authors: Scabra Andre Rachmat , Marzuki Muhammad , Sudirman Sudirman
Published: December 2022

Ikan molly merupakan ikan hias air tawar yang memiliki berbagai jenis dan keunikan tersendiri, termasuk dalam jenis ikan yang disebut “pembawa hidup” atau memiliki kemampuan untuk melahirkan. Masalah yang dihadapi oleh pembudidaya ikan molly saat ini adalah rendahnya produksi untuk memenuhi permintaan pasar yang terus meningkat. Hal ini menyebabkan kurangnya kemampuan untuk mencapai target produksi yang diinginkan. Penelitian ini mengevaluasi pengaruh pemberian Oodev melalui pakan terhadap jumlah produksi larva ikan molly Poecilia sp. dengan dosis yang berbeda. Penelitian menggunakan Rancangan Acak Lengkap dengan perlakuan dosis Oodev yang berbeda yaitu A (0 ml/kg ikan), B (0,5 ml/kg ikan) C (1,0 ml/kg ikan) dan D (1,5 ml/kg ikan) masing-masing diulang tiga kali. Hormon oodev diberikan melalui pakan dua kali sehari dengan feeding rate (FR) 3%. Hasil penelitian menunjukkan bahwa perlakuan memberikan pengaruh nyata terhadap parameter jumlah larva, waktu melahirkan, SR larva, TKG, IKG jantan dan betina, akan tetapi tidak berpengaruh nyata terhadap parameter persentas induk bunting dan persentase induk melahirkan. Jumlah larva tertinggi terjadi pada perlakuan B, yaitu 31 ekor. Waktu melahirkan tercepat terjadi pada perlakuan B dan C, yaitu 4,3 dan 4,7 minggu. Nilai SR larva tertinggi terjadi pada perlakuan B, yaitu 96%. Nilai TKG tertinggi terjadi pada perlakuan B, yaitu 4. Nilai IKG induk jnatan dna betina tertinggi terjadi pada perlakuan B, yaitu 3,2 dan 9,6. Kesimpulan yang diambil pada penelitian ini, pemberian hormone Oodev pada induk ikan Molly memberikan pengaruh nyata terhadap aktifitas reproduksi. Dosis terbaik yang didapatkan adalah 0,5ml/kg induk.
EVALUASI NILAI GIZI DAN KANDUNGAN ASAM AMINO PADA KOTORAN UNGGAS UNTUK PAKAN IKAN LELE (Clarias gariepinus)
Authors: Puteri Rizki Eka , Saadah Raudhatus , Laras Raymundus Genty
Published: December 2022

Ikan lele merupakan sumber protein hewani yang disukai sebagian besar masyarakat. Budidaya ikan lele mudah dan cepat dibudidayakan, namun kendala terbesar yang dihadapi oleh pembudidaya ikan lele adalah biaya produksi tepung ikan yang masih tinggi. Ikan membutuhkan protein tinggi untuk tumbuh dan berkembang. Salah satu bahan pakan alternatif yang dapat menekan biaya pakan adalah kotoran ayam sebagai bahan baku pengganti tepung ikan. Penelitian ini bertujuan untuk mengetahui seberapa tinggi kandungan nutrisi kotoran ayam sebagai bahan alternatif tepung ikan. Didapatkan pada bulan Oktober 2021. Penelitian ini menggunakan satu sampel kotoran ayam dari peternak ayam petelur di Kenten Laut Kabupaten Banyuasin. Penelitian meliputi beberapa analisis proksimat kotoran ayam (protein, kadar abu, serat kasar, dan lemak) dan analisis asam amino. Analisis kandungan asam amino dilakukan menurut manual instrumen ICI (1985) dan metode AOAC (2005). Hasil penelitian menunjukkan bahwa kotoran ayam memiliki kadar abu 0,13%, protein kasar 13,12%, serat kasar 18,34% dan lemak kasar 3,10%. Kesimpulan dari penelitian ini adalah nutrisi kotoran ayam dapat digunakan sebagai sumber protein pada pembudidaya ikan.
Kata Kunci: ikan lele, limbah ungags, kotoran ayam, pakan alternatif,
KELIMPAHAN FITOPLANKTON SEBAGAI INDIKATOR KUALITAS PERAIRAN DI PERAIRAN LAUT LABANGKA, KABUPATEN SUMBAWA
Authors: Astriana Baiq Hilda , Putra Aryan Perdana , Junaidi Muhammad
Published: December 2022

Salah satu kecamatan dengan produksi udang terbesar saat ini di Kabupaten Sumbawa adalah kecamatan labangka. Mengingat akan dikembangnya kegiatan tambak budidaya udang secara ekstensif di Kecamatan tersebut, maka perlu diketahui kondisi existing dari perairan laut di wilayah ini. Hal ini dibutuhkan sebagai bahan pertimbangan dalam pengelolaan tambak budidaya udang agar produksi udang serta kualitas perairan dapat terjaga. Salah satu indicator perubahan lingkungan perairan yang dapat diamati yaitu fitoplankton. Oleh karena itu, penelitian ini bertujuan untuk mengetahui kelimpahan fitoplankton dan parameter kualitas air lainnya di perairan laut Labangka sehingga dapat diketahui kondisi awal dari perairan laut Labangka sebelum dimulainya kegiatan pengembangan tambak udang di kawasan ini. Sampling plankton maupun air laut menggunakan purposive sampling. Analisis data Fitoplankton meliputi penghitungan kelimpahan (D), indeks diversitas (H’), indeks keseragaman E, dan indeks dominansi (D). Sedangkan parameter kualitas air yang diukur yaitu pH, total ammoniak, fosfat, nitrat, nitrit, dan BOT. Hasil perhitungan kelimpahan fitoplankton dan hasil pengukuran parameter kualitas air selanjutnya dianalisis secara statistik menggunakan korelasi Pearson untuk melihat hubungan antar variable yang diukur. Hasil pengamatan sampel fitoplankton menunjukkan bahwa terdapat 11 genera yaitu Coscinodiscus, Biddulphia, Nitzschia, Rhizosolenia, Pleurosigma, Triceratium, Ceratium, Pelagothrix, Trichodesmium, Dinophysis, dan Thallasionema. Selain itu, diketahui bahwa perairan ini masih dapat dikatakan aman karena kelimpahan fitoplankton terhitung kurang dari 15.000 ind/L. Sementara itu, nilai pH, total ammoniak, fosfat, nitrat, nitrit, dan BOT masih dalam kisaran aman walaupun ada parameter yang memiliki nilai melebihi baku mutu. Dapat disimpulkan bahwa perairan Labangka memiliki kualitas perairan yang baik dan sesuai untuk pengembangan kegiatan budidaya.
STUDI BIOAKUMULASI LOGAM BERAT (Pb, Cd, DAN As) PADA RUMPUT LAUT (Caulerpa racemosa) DARI TAMBAK TRADISIONAL DI BRONDONG, LAMONGAN
Authors: Farizky Cindi Koes , Fitriani Mirna , Hidayati Nuning Vita , Rahardja Boedi Setya , Andriyono Sapto
Published: December 2022

Rumput laut (Caulerpa racemosa) merupakan salah satu makroalga yang memiliki kemampuan untuk mengakumulasi logam berat, sehingga dijadikan sebagai bioindikator pencemaran lingkungan. Wilayah pesisir Lamongan, termasuk di Kecamatan Brondong terdapat berbagai kegiatan industri. Buangan limbah kegiatan industri tersebut akan meningkatkan resiko pencemaran logam berat. Metode penelitian yang digunakan adalah observasi dengan analisis Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Analisis data yang digunakan yaitu kuantitatif dengan perhitungan berdasarkan Geo-Accumulation Index (Igeo), Contamination Factor (CF), dan Bio Concentration Factor (BCF). Hasil penelitian menunjukkan bahwa rumput laut (C. racemosa), air, dan sedimen dari tambak tradisional di Brondong, Lamongan mengandung logam berat (Pb, Cd, dan As) dengan konsentrasi yang rendah. Rata-rata konsentrasi Pb, Cd, dan As pada rumput laut (C. racemosa) berturut-turut adalah 0,0901 mg/kg, 0,0124 mg/kg, dan 0,2357 mg/kg. Konsentrasi Pb dan Cd pada air tidak terdeteksi, sedangkan rata-rata konsentrasi As pada air adalah 0,0158 mg/l. Konsentrasi Pb, Cd, dan As pada sedimen berturut-turut adalah 12,3 mg/kg, 0,171 mg/kg, dan 3,74 mg/kg. Nilai Igeo dan CF menunjukkan bahwa logam berat (Pb, Cd, dan As) mengindikasikan tingkat pencemaran dan tingkat kontaminasi yang rendah (0<Igeo<1 dan CF<1). Nilai BCF yang rendah juga menunjukkan bahwa tingkat akumulatif rumput laut (C. racemosa) dikategorikan rendah (BCF<100). Berdasarkan hasil penelitian ini, dapat diketahui bahwa tambak tradisional di Brondong, Lamongan tergolong aman untuk dilakukan kegiatan budidaya rumput laut (C. racemosa).
LAJU EKSPLOITASI KERANG REMIS (Corbicula sp.) DI PERAIRAN SUNGAI KONAWEHA KECAMATAN UNAAHA KABUPATEN KONAWE SULAWESI TENGGARA
Authors: Kasim Sulpian Sahdatun , Purnama Muhammad , Bahtiar Bahtiar
Published: December 2022

Kerang remis merupakan organisme air tawar yang memiliki nilai ekonomis & keberadannya banyak dimanfaatkan oleh masyarakat Sungai Konaweha. Penelitian ini bertujuan untuk mengetahui laju eksploitasi kerang remis (Corbicula sp.). Penelitian ini dilaksanakan tiga bulan yaitu dari bulan Agustus-Oktober 2021. Lokasi penelitian bertempat di Perairan Sungai Konaweha Kecamatan Unaaha Kabupaten Konawe Sulawesi Tenggara. Data dianalisis menggunakan FiSAT II versi 3.0. Hasil penelitian menunjukkan kelompok ukuran berdasarkan frekuensi panjang didominasi ukuran 25-27,7 mm. Parameter pertumbuhan diperoleh panjang asimtotik kerang remis (L?) yaitu 40,95 mm. Koefisien laju pertumbuhan (K) 0,82, nilai t0 yaitu -0,12, ?’ yaitu 7,23, sedangkan nilai tmaks yaitu 3,66. mortalitas alami (M) kerang remis sebesar 1,51/tahun dan mortalitas penangkapan (F) sebesar 1,40/tahun sehingga mortalitas totalnya bernilai 2,9/tahun, sedangkan tingkat eksploitasi sebesar 0,48/tahun. Hal ini menunjukkan bahwa tingkat eksploitasi di perairan Sungai Konaweha kategori rendah (under exploited).
Tarımda yeniden yapılanma ve emeğin dönüşümü: Siirt fıstığı örneği
Authors: AĞAÇ Medeni
Published: December 2022

Bu çalışmanın amacı; Siirt yöresinde Siirt fıstığı örneğinde 1990’lı yıllardan günümüze yaşanan dönüşümü emek ve sermaye temelinde incelemektir. Emek süreçleri ile birlikte güç ilişkilerindeki değişimler irdelenmektedir. Öncelikle Siirt fıstığının öne çıkarılmasına kaynaklık eden faktörler incelenmiştir. Siirt kırsalında göç, sermaye birikimi ve ulaşım, üretim formunda dönüşüm, geçimlik üretimin terk edilmesi, köylülükte farklılaşma, devlet öncülüğünde hayata geçirilen kırsal dönüşüm projesi ve geleneksel(hayvancılık) ve modern(fıstık üretimi) üretim formlarında emeğin karşılaştırılması ele alınmıştır. Bir saha araştırmasına dayanan bu çalışma Siirt ili, ilçeleri ve köylerinde “sözlü tarih” tekniği ve derinlemesine görüşme yöntemine dayanılarak yapılmıştır. Alan çalışmasının sonucunda; fıstık üretimindeki artışla zıt yönde küçük ölçekli hayvan işletmelerinin azaldığı, çitlenen arazilerin büyük oranda müşterek mera alanları olduğu, küçük meta üreticisi köylünün pazar için üretim yapmaya başladığı görülmüştür. Değişen dinamikler köylülükte farklılaşmayı da beraberinde getirmiştir. Emeğin dönüşümü ile birlikte güç ilişkileri de farklılaşmıştır. Emek ve sermaye temelinde gelişen bu kapitalist dönüşüm farklı sınıfsal yapılara zemin hazırlamıştır. 2002 yılında 40 bin dekar olan Siirt fıstığı üretim alanı 2021 itibariyle sanayileşerek 300 dekarı geçmiştir. Siirt fıstığı köyden şehir merkezine oradan tüccar, toptancı ve aracılar yoluyla SFİT ve Gaziantep merkezli ihracatçı şirketlere pazarlanmaktadır. Ürün bu şirketler yoluyla da küresel meta zincirine katılmaktadır. Böylece küresele açılan Siirt fıstığı, küresel gıda şirketlerinin hakim olduğu gıda zincirlerine eklemlenmektedir. Bununla birlikte yurt içi ve yurt dışında ticareti önem kazanmış ve süpermarketlerin raflarında yer almaya başlamıştır. Tüm bu süreç Siirt fıstığı üretim zinciri ve bu zincirde yer alan güçlerin ilişkileri bağlamı içinde incelenmiştir.
Post-Marksizm’in Marksist İktisat Eleştirisi
Authors: BİLİR Hüsnü
Published: December 2022

Post-Marksist yaklaşım 1960’lı yıllardan sonra meydana gelen teorik ve pratik gelişmeler neticesinde Marx’ın çalışmalarının ve Marksizmin hükümsüz kılındığını ileri sürmektedir. Bu bakımdan Marx’ın ekonomik alana ontolojik bir öncelik tanıyan tarih anlayışı hatalıdır, çünkü bu anlayış ekonomik olanın inşa edilmesinde kültürel ve politik pratikleri devre dışı bırakarak, kapitalist üretimi birikim dinamiklerini belirleyen sınırlı bir pratikler alt kümesine indirgemektedir. Ancak post-Marksist düşünürlere göre modern kapitalist toplumlarda ortaya çıkan çok sayıdaki antagonizma herhangi bir nesnel çelişkiye -yani sınıf mücadelesine- indirgenemez. Bu antagonizmalar söylemsel olarak üretilme biçimlerine bağlı olarak ekolojik, feminist, ulusal ya da işçi hareketleri gibi farklı şekillerde ortaya çıkabilmektedir. Dolayısıyla işçi sınıfının politik dönüşümdeki ayrıcalıklı rolü ortadan kalkmış ve işçi sınıfının bu ayrıcalıklı rolünün yerini “yeni toplumsal hareketler” almıştır. Bu nedenle post-Marksistler toplumsal antagonizmanın sınıfsız bir toplumla sona ereceği görüşünü reddetmektedirler. Bu bakış açısı doğrultusunda Maksimizdeki değer ve sömürü kavramları da anlamlarını yitirmişlerdir. Bu çalışmanın amacı Samuel Bowles, Jon Elster ve John Roemer özelinde post-Marksist yaklaşımın Marksist iktisada bilhassa sınıf, değer ve sömürü kavramları çerçevesinde yönelttikleri eleştirileri ele almak ve söz konusu eleştirilere yanıt aramaktır.
Ülkelerin Refah Seviyelerinin Uluslararası Göç Hareketlerine Olan Etkisi: OECD Ülkeleri Üzerine Bir Çalışma
Authors: KURT TOPUZ Senem
Published: December 2022

Bu çalışmada, OECD ülkelerine yapılan uluslararası göçün nedenleri OECD tarafından hazırlanan “How’s Life Well-Being” veri tabanı kullanılarak refah kavramı üzerinden analiz edilip tartışılmıştır. Bu bağlamda çalışmanın temel kabulü, refah düzeyinin sadece gayri safi yurtiçi hâsıla ile ölçülemeyeceği ve refahın istihdam, gelir, sağlık, öznel iyi oluş gibi mevcut yaşam koşullarını ve yaşam kalitesi etkileyen birçok koşula ve bu koşulların sürdürülebilirliğine bağlı olduğudur. Bu doğrultuda çalışmada ülkelerin refah seviyelerini belirleyen sosyal ve ekonomik değişkenlerin o ülkelere olan uluslararası göçe etkisi panel oluşturularak analiz edilmiştir. Analiz kapsamında OECD ülkeleri için hesaplanan How’s Life Well-Being ve International Migration veri tabanlarında yer alan değişkenlerden yararlanılmıştır. Toplam 35 OECD ülkesi verisinin kullanıldığı bu çalışmada 12 farklı bağımsız değişkenin uluslararası göçe etkisi panel regresyon analizi kullanılarak test edilmiştir. Sonuçlar, ülkelere gerçekleşen uluslararası göçte istihdam oranı, kazanç, doğumda beklenen yaşam süresi ve öznel iyi oluş değişkenlerinin etkili olduğunu göstermiştir.
FLUID FLOW MODELLING WITH FREE SURFACE
Authors: Pratama Anjeryan Sapta , Noviani Evi , Yudhi Yudhi
Published: December 2022

Fluid is a substance that can flow in the form of a liquid or a gas. Based on the movement of the fluid is divided into static and dynamic fluids. This study discusses fluid dynamics, namely modelling fluid flow accompanied by a free surface and an obstacle in the fluid flow. Fluid modelling generally makes some basic assumptions into mathematical equations. The assumptions are incompressible, steady-state and irrotational. The steps to obtain a fluid flow model are using Newton’s second law, the law of conservation of mass, and the law of conservation of momentum to obtain the general Navier-Stokes equation, the designing the Euler free surface equation, the Bernoulli equation, then making a free surface representation and linearizing the wave equation so that it is obtained fluid flow model. The resulting mathematical model is a Laplace equation with boundary conditions in the fluid.
OUTLIER IDENTIFICATION ON PENALIZED SPLINE REGRESSION MODELING FOR POVERTY GAP INDEX IN JAVA
Authors: Fadilah Anggita Rizky , Fitrianto Anwar , Sumertajaya I Made
Published: December 2022

Java is one of the islands in Indonesia which has good establishment acceleration. Even though economic growth was good, poverty is still a serious problem. Three of six provinces, including DI Yogyakarta, Central Java, and East Java still have poverty rates above national rates in March 2020. This problem indicates that an imbalance in poverty happens between those regions. Several regions have extreme conditions or known as outliers. Besides that, poverty gap data have a complex pattern so modeling using a non-parametric approach is suitable. This study aims to build an appropriate model to support the success of poverty alleviation in Java and the identification of outliers was carried out using an adjusted boxplot. The best-penalized regression spline model for Poverty Gap Index in Java Island was obtained by Generalized minimum Cross-Validation (GCV) using optimum smoothing parameter (λ) 0,12 and knot combination (1, 2, 4, 1, 5, 3, and 1) for seven predictor variables. The result shows that penalized spline regression model has a higher R2 than OLS regression. The R2 is obtained 69,10%, so the model is feasible to explain the variability of the poverty gap in Java. Moreover, based on the outliers’ identification shows a dependency between outlier in data and residual because some districts/cities are identified as outliers in both.
LEE-CARTER MODELING FOR MORTALITY IN INDONESIA WITH A BAYESIAN APPROACH
Authors: Fajar Muhammad , Fajariyanto Eko
Published: December 2022

This study aims to model Lee-Carter mortality with a Bayesian approach, where the parameters in the model are assumed to be random variables. The data used in this study is data on mortality rates by age group from the period 1950–2015. The sourced of data was from the UN website. Age groups are categorized by age 0 years, 1-5 years, 6-10 years, 11-15 years, ..., 86-90 years. The results of this study are from Bayes estimation obtained information that the average infant mortality rate (population aged less than one year) is high, then at the age of toddlers (1-4 years) average mortality rate decreases. Furthermore, the average mortality rate for children, adolescents, young and older people has increased again. Meanwhile, the relative speed of the pattern of changes in mortality at infant age (less than one year) is high enough. At the age of toddlers (1 – 4 years), the pattern of changes in mortality has increased. Then, in the population of the next age group until the older age group, the mortality continues to decrease. The pattern of changes in mortality is lowest in the elderly population.
MAGNETOHYDRODYNAMICS NANOFERRO FLUID FLOWS PASSING THROUGH A MAGNETIC POROUS SPHERE UNDER THERMAL RADIATION EFFECT
Authors: Widodo Basuki , Pamela Eirene Juwita Ningtyas , Adzkiya Dieky , Imron Chairul , Rahayuningsih Tri
Published: December 2022

In the application of thermonuclear reactor cooling, temperature regulation relies on experiments based on practical experience. Therefore, the accuracy of this temperature setting is operator-dependent. So it is necessary to develop a mathematical model to solve these problems. The dimensional mathematical model therefore is generated using the conservation laws of mass, momentum, and energy. The dimensional mathematical model is further transformed into non-dimensional mathematical model by using non-dimensional variables. The non-dimensional mathematical model is simplified using the similarity equation by utilizing the stream function. The model obtained is a system of nonlinear ordinary differential equations. This system of equations is then solved using an implicit numerical method using Keller-Box scheme. This Keller-Box method has high accuracy and is more efficient. The numerical simulation results show that the velocity profile and temperature profile decrease as the magnetic parameter, porosity parameter, and the Prandtl number increases, respectively. Meanwhile, when the radiation parameter increases, the temperature profile also increases, but the radiation parameter does not affect the velocity profile.
THE COVID-19 PANDEMIC EFFECT ON THE DETERMINING CHILLI CROP AGRICULTURAL INSURANCE PREMIUM
Authors: Manjaruni Vivin Aprilia , Purnaba I Gusti Putu , Budiarti Retno
Published: December 2022

Parametric insurance is a type of insurance that contains an agreement related to triggering events between the insurer and the insured determined at the beginning of the contract. The provision that applies if the triggering event occurs is that the insurer (insurance company) is obliged to pay a sum of money (compensation) to the insured. Insurance based on area yield insurance is parametric insurance. Ozaki formulated an agricultural insurance model based on yields in an area called the parametric method. The loss of this method is a probability for crop loss that is in the area under the density function curve when the yield is smaller than the maximum guaranteed yield, but the losses calculated in this method only include losses due to crop failure and do not include losses due to the COVID-19 pandemic. Meanwhile, Susilowati and Gunawan, in their journals, explained that the production level of agricultural products, especially chili crops, during the COVID-19 pandemic, tended to be stable but not with the demand and purchasing power of the people, which significantly decreased. The significant decline in sales made farmers experience huge losses. Considering the COVID-19 pandemic impact, we were interested in formulating  yield-based agricultural insurance models of chili crop that calculates the COVID-19 pandemic risk. So, the premiums rates and premiums obtained are more realistic and can reduce the risk of losses due to the COVID-19 pandemic for farmers, private companies, and the government.
OPTIMALISASI BADAN USAHA NELAYAN TRADISIONAL DI DESA CAMPUREJO KABUPATEN GRESIK
Authors: Ariyanto Bambang , Chomariyah  , Hudi Nurul , Sofijanto Mochamad Arief
Published: December 2022

Usaha perikanan di Desa Campurejo, Kecamatan Panceng, Kabupaten Gresik sebenarnya sudah bertumbuh cukup baik. Namun, usaha-usaha perikanan ini belum dikelola secara maksimal berkaitan dengan legalitas badan usahanya. Badan usaha yang berbadan hukum kini menjadi tuntutan yang harus dipenuhi agar usaha nelayan di Desa Campurejo mendapatkan hak, kewajiban dan perlindungan hukum dari pemerintah. Apalagi pemerintah baru saja menetapkan Undang-Undang Nomor 11 Tahun 2020 tentang Cipta Kerja yang memberikan kemudahan bagi masyarakat untuk berusaha. Tujuan dari kegiatan ini bagi pemerintah desa adalah meningkatkan pelayanan di Desa dalam hal pemberian kelengkapan perizinan. Bagi nelayan di Desa Campurejo kegiatan ini diharapkan: Pertama,  menumbuhkan motivasi bagi nelayan untuk melengkapi badan usahanya sesuai dengan hukum yang berlaku. Kedua, meningkatkan kapasitas dan pengetahuan untuk melakukan proses perizinan secara mandiri atas legalitas badan usahanya. Sasaran dari kegiatan ini adalah para nelayan, baik nelayan pemilik alat produksi dan buruh nelayan. Metode yang digunakan adalah metode ceramah, dengan menggunakan video and power point. Hasil pengabdian ini adalah peningkatan pengetahuan dan pemahaman nelayan di Desa Campurejo agar mempunyai kesadaran untuk membentuk badan usaha berbadan hukum. Sistem perizinan badan usaha melalui sistem Online Single Submission sangat membantu para nelayan untuk melakukan perizinan berusaha.
HIDRO-OSEANOGRAFI SEBAGAI SARANA BANTU DALAM ZONASI DI WISATA PASIR PUTIH DALEGAN KABUPATEN GRESIK, JAWA TIMUR
Authors: S Bintoro Rudi , Widagdo Supriyatno , Subur Joko , Prihatiningtyas Setya
Published: December 2022

Pengabdian masyarakat  ini bertujuan untuk penyediaan informasi kelautan berupa peta hidro-oseanografi yang dapat digunakan sebagai peta dasar dalam menyusun penggunaan lahan di wisata pasir putih Dalegan.  Pencapaian tujuan tersebut dilakukan melalui survei pasang surut dan survei batimetri untuk menggambarkan permukaan dasar laut di wisata pasir putih Dalegan. Hasil survei selanjutnya digunakan untuk analisis pengggunaan lahan di area laut. Hasil penelitian menunjukkan bahwa berdasarkan peta batimetri dan data pasang surut dapat ditentutan luas daerah laut yang aman untuk wisata laut, yaitu seluas 37,992 m2. Demikian pula dapat diketahui bahwa ketinggian tanggul sungai yang berbatasan dengan daerah wisata masih belum optimal, sehingga saat air laut pasang, air akan melimpas di atas tanggul membanjiri daerah wisata. Adapun saran yang dapat diajukan dari hasil program pengabdian masyarakat bagi pokdarwis adalah lebih termotivasi dalam menyelesaikan pembangunan sarana dan prasarana di wisata pasir putih Dalegan.
Pemanfaatan Citra USGS dan Google Earth untuk Pembuatan Peta Tematik Desa Jambesari Kecamatan Poncokusumo Kabupaten Malang
Authors: Yuniawatika Yuniawatika , Sasmito Dian Ahmad , Pratisia Tuisda , Sembiring Desi Muliana , Ananda Marino
Published: December 2022

Kebutuhan akan visualisasi  suatu  desa untuk kepentingan tertentu menjadi persoalan yang belum dapat diselesaikan di beberapa desa. Belum tersedianya peta desa, justru hal ini  menjadikan perangkat atau lembaga desa tersebut kurang maksimal dalam perencanaan dan memahami desanya. Desa Jambesari memiliki karakteristik wilayah tersendiri mulai dari letak geografisnya, penggunaan lahan, hingga kenampakan yang ada di desa tersebut. Sehingga perlu adanya visualisasi dalam bentuk 2 dimensi salah satunya berbentuk peta tematik desa. Model pendekatan yang digunakan adalah inderaja dan SIG, dengan mengidentifikasi batas administrasi, jalan, kontur, aliran sungai, dan penggunaan lahan. Pada pembuatan peta tematik desa menggunakan citra satelit yang berasal dari United States Geological Survey (USGS) bagian s08_e112_1arc_v3 (Lembar Malang Raya) dan google earth. Tahapan pembuatan peta tersebut berupa pengumpulan data, pengolahan data, dan penyajian data. Hasil pembuatan peta tematik desa tersebut menghasilkan peta administrasi, peta jalan, peta aliran sungai, peta kontur, dan peta penggunaan lahan. Dengan demikian, peta tematik dapat memberikan pengaruh yang positif bagi masyarakat dan perangkat Desa Jambesari.
IbM Gerakan Masyarakat Petani Atasi Racun (GEMPAR) di Kabanjahe Kabupaten Karo
Authors: Mahyuni Eka Lestari , Harahap R. Hamdani , Harahap Urip , Nurmaini Nurmaini
Published: December 2022

Keracunan pestisida merupakan suatu kejadian yang perlu diperhatikan khususnya bagi petani yang menggunakan pestisida. Fenomena keracunan umumnya disebabkan karena perilaku penggunaan pestisida yang tidak sesuai prosedur dan berisiko. Kegiatan PPM ini merupakan salah satu kegiatan pemberdayaan masyarakat untuk mengurangi risiko keracunan pestisida melalui gerakan sosial yang disebut dengan GEMPAR (Gerakan Masyarakat Petani Atasi Racun). GEMPAR merupakan gerakan sosial yang terdiri dari delapan aksi sebagai gerakan petani untuk mengurangi risiko keracunan akibat penggunaan pestisida. Aksi GEMPAR meliputi bagaimana mengenali bahaya racun pestisida dan gejala keracunan; menggunakan pelindung diri yang lengkap selama menggunakan pestisida; memperhatikan arah angin selama menyemprot; menyimpan pestisida di tempat yang aman dan tertutup; membuang sisa wadah pestisida di tempat yang tertutup; melaporkan keluhan bila mengalami gejala keracunan; dan beralih menggunakan pestisida alami dan meninggalkan pestisida kimia sintetis. GEMPAR yang dilaksanakan dalam kegiatan PPM ini dilakukan sebagai peningkatan edukasi petani dan menjawab kendala penerapan GEMPAR melalui kegiatan talk show. Kegiatan ini mendukung promosi aksi GEMPAR yang dilakukan petani sehingga dapat menunjang kesejahteraan dan perekonomian petani. Disamping dapat menghindari risiko keracunan juga dapat menyehatkan masyarakat petani dengan produk pertanian yang bebas pestisida.
Per una storia orale della Rete regionale archivi Udi Emilia-Romagna: intervista a Rosanna Galli, Micaela Gavioli e Katia Graziosi
Authors: cura di Eloisa Betti e Vincenzo Cosentino a
Published: December 2022

L’intervista ha come obiettivo quello di ricostruire la storia della Rete Archivi Udi Emilia-Romagna. Le intervistate hanno ricoperto la presidenza della Rete in fasi e sedi diverse. La Rete, infatti, nasce a Modena alla fine degli anni Ottanta, ed è Rosanna Galli a illustrare come sia nata e come si sia consolidata in Emilia-Romagna. In seguito, nei primi anni Duemila, la sede viene spostata a Ferrara, dove è Micaela Gavioli ad assumerne la responsabilità. Per ultimo, nel 2017 la presidenza è portata a Bologna e Katia Graziosi presenta i progetti che sono stati realizzati in quest’ultimo periodo.
Le Vent des Libertaires. Il graphic novel di Thirault e Zaghi sulla vita di Nestor Makhno offre spunti di riflessione utili anche per il presente
Authors: Gagliardo Alberto
Published: December 2022

Ripercorrere la vita di Nestor Makhno e le vicende storiche dell’Ucraina nei primi due decenni del Novecento dà l’occasione per riflettere sul passato di un paese e delle sue problematiche relazioni con la Russia, tornati drammaticamente alla ribalta della cronaca contemporanea.
A partire da Vinka. Introduzione al Dossier
Authors: De Maria Carlo
Published: December 2022

La biografia di Vinka Kitarovic riconosce due tematiche di riferimento: la storia dell’emancipazione femminile e dell’impegno delle donne sulla scena pubblica; la storia dei movimenti collettivi transnazionali nell’Europa contemporanea. Il Dossier si apre con una analisi delle modalità in cui l’unificazione europea ha ridotto le differenze fra i paesi membri in una prospettiva di genere, di generazione e di classe. Prosegue facendo il punto, anche in chiave diacronica, sulle questioni relative a violenza di genere e molestie nel mondo del lavoro. E si chiude presentando una serie di percorsi ed esperienze di public history che hanno intersecato i temi al centro del seminario “Donne, lavoro e diritti in Europa”.

Vinka Kitarovic’s biography has two main themes: the history of women’s emancipation and women’s engagement on the public stage; and the history of transnational collective movements in contemporary Europe. The Dossier opens with an analysis of the ways in which European unification has reduced the differences between member states from a gender, generational and class perspective. It continues by examining, also from a diachronic perspective, the issues of gender-based violence and harassment in the world of work. And it closes by presenting a series of public history paths and experiences that cross-referenced the topics at the centre of the seminar “Women, Work and Rights in Europe”.
Do Consumers Intend to Purchase the Food with Geographical Indication?
Authors: Aytop Yesim , Çankaya Dilara
Published: December 2022

This research aims to determine the effect of consumers' perceptions of GI on purchasing 6 intention. Data were obtained from surveys conducted with 384 consumers in Turkey. 7 Structural equation model (SEM) was used to analyze the data. According to the results, 8 62.5% of the consumers have information about foods with GI while 58.9% of the consumers 9 consume foods with GI. The SEM results indicated that food with GI perception had a 10 statistically significant and positive effect on the intention to purchase foods with GI. 11 Consumers want to buy geographically marked foods as they are "healthier", "higher quality", 12 and "more reliable”. Consumers have positive opinions about foods with GI, and are willing 13 to pay more for them. The fact consumer perceptions do not change is closely related to the 14 performance of products with GI. Monitoring the production processes of GI foods that are 15 more delicious, healthier, reliable, and ensuring the continuity in product quality will increase 16 the demand of consumers for geographically marked foods.
Consumers’ perceptions and policy implications towards the future of the Organic Food Sector in Italy
Authors: Bianca Minotti
Published: December 2022

Research on organic consumers’ preferences has been given a lot of attention in the
past, analysing in detail the motives of organic food consumption across the World.
Less attention has been paid to the expectations of consumers change in the context
of growing complexities of sustainable agriculture. The main goal of this study is to
explore how the ongoing changes of the organic sector are reflected in consumers’
perspectives of organic agriculture and their preferences for organic food quality. The
study was conducted in Italy with the use of the Q-methodology with a Q-set of 44
statements and a P-set of 20 participants. Three main groups of consumers were
identified: “Mainstreaming for the better good”, “Critical supporters looking for more”,
“Organic intensification supporters”. Despite each ideal-typical group showing different
perceptions of the future of the organic movement, they all shared similar policy
implications. Three main topics of discussion emerged from the results of this study
which are: the expectations of the consumers towards the future of the organic
movement, the role of trust in purchasing behaviors and the importance of supporting
rural development.
Dante e la Kleiner Flug
Authors: Rigo Paolo
Published: December 2022

The history of Commedia’s illustrations is very long. In the last years many
comics have been dedicated to Dante’s texts. This essay focuses on the production of
Kleiner Flug. It is a little publishing house: their catalogue includes several works on
Dante’s life and on his characters.
En starkt bidrag till svensk-judisk historieskrivning
Authors: Leviathan Daniel
Published: December 2022

Bokrecension ov Göran Rosenbergs Rabbi Marcus Ehrenpreis obesvarade kärlek (Stockholm: Albert Bonniers Förlag, 2021)
Editorial
Authors: Illman Ruth , Lundgren Svante
Published: December 2022

Editorial for the Volume 33, Issue 2
The History of Development of Inland Transport Infrastructure: Technology and Economic Aspects. Part 2
Authors: Razuvaev A. D.
Published: December 2022

The second part of the article (the first of which was published in the last issue of the journal) analyses the history of emergence of the rail track, as well as evolution of the railway-track substructure, including a review of the materials used for this.

A separate section is devoted to evolution of railways in Russia.

Brief conclusions are made regarding the importance of the historical and economic aspects of development of inland transport infrastructure.

The importance of considering this issue is quite high when conducting comprehensive research intended to get economic assessment and forecast the strategic development of transport infrastructure.
Phase Preselector Intended to Suppress Image Frequency in the Radio Receiver
Authors: Volkov A. A. , Morozov M. S.
Published: December 2022

Until now, to suppress the image channel, radio receivers use a frequency preselector consisting of oscillatory circuits of the input device and a radio frequency amplifier. But the frequency preselector does not suppress strongly enough the image frequency. Therefore, two frequency conversions are often used in railway radio communication systems. For example, for station radio communications at frequencies f = 151‒156 MHz, two frequency converters with fpr1 = 24 MHz and fpr2 =1,596 MHz are used, which greatly complicates the design of the receiver.

The article proposes to use a phase preselector, which is the second parallel quadrature frequency converter, the signal of which, after passing additional elements, is summed with the signal of the first frequency converter with high suppression of the image frequency. With this method of organising communication, the bandpass phase shifter will be a problematic block in the phase preselector, since it must have a small error Δφ.

A bandpass phase shifter made on RC circuits with a minimum phase shift error Δφ = 0,1˚ within a frequency band of 25 kHz is described. In case of increasing the frequency band, the phase shift error remains minimal, but it is necessary to use limiting amplifiers to equalise the amplitudes of the signals at its output. The use of a phase preselector instead of a frequency preselector will help to reduce the intermediate frequency, which will lead to high selectivity, both in the adjacent and image channels with single-sideband modulation, and will also simplify and reduce the cost of the signal receiver.
An Innovative Approach to Creation of New Types of Urban Passenger Transport
Authors: Troitskaya N. A.
Published: December 2022

Currently, the population is increasingly concentrated in large cities and metropolitan areas, urban outskirts are being actively built up. According to sociologists, more than 80 % of the population will live in cities by 2025. Megacities are characterised by social tension associated with the transport and environmental situation, which is aggravated due to population growth, an increase in its density and an increase in the number of cars per capita.

The «city–transport» system has feedback features. When the city will exhaust the capacity of the created transport system regarding rapid and convenient movement of passengers, it will be necessary to change the characteristics of urban transport vehicles up to creation of fundamentally new ones based on modern energy sources.

Transport is a service industry and must meet the requirements of those who use it. For urban passenger transportation, the core thing is the quality of service.

At all times, people had a desire to move around, using a variety of animals for this depending on the region of residence. Wealthy people had special carts, carriages, and animals in their property. Ordinary people travelled on foot, but with the growth of settlements and cities, they began to experience great difficulties in moving over long distances. The idea of creating public transport, i.e., available for use by any inhabitant for a moderate fee was formulated by the famous natural philosopher, mathematician, physicist, writer Blaise Pascal in 1661.

This idea saw serious development later due to the intensive growth of cities and due to developments of scientists in the field of exact sciences.

This review article has used research method which is the analysis of the history of emergence and development of each mode of transport in world and domestic practices, that has made it possible to trace evolution of urban transport up to the present day. The objective of this article is to present further evolution of the city’s transport service, which requires an innovative approach to creation of new modes of transport.

The author’s research has been reflected in the relevant articles, as well as in the chapters on «Urban transport» of several textbooks.

The article discusses an innovative approach to modernisation of existing urban vehicles and creation of new ones that will ensure environmental friendliness, accident-free operation, reduce the occupancy of the city, create comfortable conditions for transportation of passengers, etc. This provides for the widespread use of digital technologies, as well as of non-traditional transport systems.

The prospective introduction of fundamentally new vehicles is considered and analysed using the examples of the experience of cities and megacities in Russia and abroad.
Transport Policy: Theoretical Framework and Economic Aspects
Authors: Karlov A. V.
Published: December 2022

The transport policy of the state is an integral part of its economic and spatial policy. The relevance of the clarification of the content of the term «transport policy» is conditioned by the attention of the state to the issues of strategic planning in the field of transport. In Russia, it was clearly evidenced by the approval in 2021 by the Government of the Russian Federation of the updated Transport Strategy of the country until 2030 with a forecast for the period until 2035.

The article reviews the definitions of transport policy in the scientific literature: its economic, environmental, technical, geopolitical and other aspects are considered. At the same time, the main emphasis of the study was on the economic factors of transport policy: the materials of economic theories (spatial development and distribution of productive forces), decision theories and methods for assessing the effectiveness of investments in transport infrastructure were considered. The definitions and the range of their application are specified. Also, the components of the transport policy have been established and a range of tools of its implementation has been defined, incl. financial, regulatory, etc. Based on the data obtained, a structure of the relationship between transport policy and economic growth was compiled, social and other components to economic aspects were identified.