bluuebunny/crossref_metadata_2025 huggingface dataset:
TIC y mundo del trabajo: desigualdades digitales en Argentina frente a la pandemia del covid-19
Authors: Muñiz Terra Leticia
Published: December 2022

Este artículo persigue el objetivo de comprender la relación entre las TIC (Tecnologías de la Información y la Comunicación) y el mundo laboral antes y durante la pandemia del covid-19 (2019-2021). En particular, se analizan las transformaciones que la crisis pandémica trajo consigo en el acceso, uso y apropiación de las TIC para trabajar en Argentina. De este modo, se busca comprender los efectos diferenciales de la incorporación de las tecnologías digitales en el ámbito laboral.

Para ello, se desarrolló una investigación cuantitativa, en la que se realizaron análisis de documentos y análisis estadísticos de distintas fuentes de información.  
En cuanto a los hallazgos, sostenemos que se produjo una profundización de las desigualdades digitales laborales preexistentes, evidenciadas por los distintos niveles de acceso, uso y apropiación de TIC según las regiones, los NSE, los géneros y las edades. Las heterogeneidades del mercado laboral y, en particular, la evolución de la modalidad del teletrabajo permitieron visibilizar el efecto desigualador que tuvo la pandemia al interior de la estructura socioocupacional argentina.
Pandemia e intensificación del trabajo docente en la universidad pública
Authors: Ruiz Barbot Mabela , Fraga Sandra , Pereda Cecilia , Villaverde Martín
Published: December 2022

Este artículo presenta el conocimiento emergente en el cruce de la pandemia como acontecimiento social y la intensificación de la vida académica en la universidad pública, en el marco de un proyecto de investigación sobre la experiencia de enseñanza de lxs  docentes ante las transformaciones del trabajo en la universidad. Si bien dicho proyecto refería a la intensificación, diversificación e individualización del trabajo, la pandemia surcó su desarrollo e irrumpió en las narrativas docentes. Desde una metodología cualitativa basada en dimensiones narrativas-biográficas, desplegamos entrevistas en profundidad a docentes de distintas facultades de la Universidad de la República, Uruguay. La pandemia que esperábamos apareciera como uno de los grandes acontecimientos sociales que marcaría la experiencia de lxs docentes, apareció como exacerbación de lo que ya venía siendo: el teletrabajo, la disposición a estar siempre conectado, la no separación del tiempo libre y de trabajo, del espacio universitario y del hogar. El espacio y el tiempo personal y colectivo son colonizados por el mundo del trabajo. La pandemia devela el conflicto que muchos universitarios sentían entre su labor académica y su vida cotidiana, entre el amar y sufrir lo que hacen, entre la implicación y la fatiga en la tarea docente.
Caracterización de la estructura productiva en la Patagonia. Un acercamiento sobre el sector turístico en la ciudad de Ushuaia
Authors: Capuano Ana María , Cohen Carolina , Hermida Mariano , Morgavi Mariana , Vereda Marisol
Published: December 2022

El presente artículo tiene como objetivo, por un lado, presentar una breve caracterización histórica de la estructura productiva de la Patagonia para focalizar en algunos aspectos vinculados al desarrollo del turismo como una de las actividades más relevantes en términos de generación de empleo y conocer su comportamiento en los últimos años. Por otro lado, dar cuenta de ciertos procesos atravesados por algunas actividades del sector turístico en la pandemia, particularmente en la ciudad de Ushuaia, analizando entrevistas realizadas a guías de turismo y choferes, dos actividades consideradas relevantes por la caracterización socioeconómica de sus trabajadores y, por ende, de las estrategias desarrolladas en el contexto de la pandemia por covid-19. Se aborda la temática desde un enfoque cuanti-cuali, trabajando con datos estadísticos de fuentes de información oficiales, así como con información primaria recolectada a partir de entrevistas semiestructuradas.
Los otros incompletos y la necesidad de nombrarlos: ¿aparecidos?
Authors: Coviello Ana Luisa
Published: December 2022

El trabajo hace un recorrido por los distintos signos lingüísticos y sintagmas que han sido utilizados en Argentina para nombrar a las víctimas de la última dictadura cívico-militar (1976-1983). Nos ocupa, concretamente, la nominación de los restos óseos de desaparecidos y desaparecidas que han sido identificados a través de procesos biomoleculares judicializados, a los que se les ha empezado a llamar “aparecidos” y “aparecidas”. También de esa manera se denominó a secuestrados-desaparecidos y secuestradas-desaparecidas que luego fueron liberados/as de los campos de concentración. El participio sustantivado emerge por oposición a “desaparecidos” y “desaparecidas”, que terminó imponiéndose a lo largo de los años aun cuando fuera un término instalado por el exrepresor Jorge Rafael Videla.
 Las reflexiones propuestas aquí indagan en los universos de sentidos de los que participan esos signos, en especial el de “aparecidos” y “aparecidas”. Partimos de un análisis semiótico que hace Mercedes Vega al sostener que “todo proceso nuevo que no tiene nombre, se presenta como un agujero, como un vacío significante en nuestro lenguaje” (2004: 163). En el camino, recurrimos a testimonios de familiares de desaparecidos y desaparecidas que se refieren a las distintas aristas de significación que implican los usos que se van imponiendo con el tiempo, y vinculamos la “aparición” con lo siniestro de Freud.
La combinación de métodos y técnicas cualitativas en ciencias sociales: una experiencia teórica empírica
Authors: Pérez Ripossio Ramiro
Published: December 2022

El artículo describe la combinación de métodos y técnicas empleadas en una investigación doctoral sobre los proyectos migratorios de las travestis/trans sudamericanas que residen en el Área Metropolitana de Buenos Aires. Este grupo social migra por las hostilidades que experimenta en los países de origen y con el anhelo de lograr mayor prosperidad en el destino receptor. La combinación de métodos y técnicas resulta un elemento central del proceso de investigación cualitativo. Por eso, para abordar este complejo objeto de estudio, se aplicó la Teoría Fundamentada y de manera auxiliar el relato de vida y la etnografía. De esta manera, en el desarrollo del artículo se caracterizan los métodos de investigación empleados y se exponen las técnicas utilizadas destacando las ventajas y limitaciones de cada uno de estos procesos. Se halló que la combinación de métodos y técnicas mejora la calidad de los datos mediante un efecto sinérgico que controla los déficits y potencia las ventajas.
Ecos de la resistencia a Monsanto en Malvinas Argentinas: transformaciones y continuidades de la conflictividad en el territorio
Authors: Possentini María Sol , Sánchez Marengo Paula Ayelen
Published: December 2022

El megaproyecto de una planta procesadora de semillas de maíz transgénico de Monsanto en Malvinas Argentinas (Córdoba), en 2012, generó desde sus inicios una gran conmoción de la que emergieron posiciones a favor y en contra, generando distintos sentidos y discursos entre la población y los diferentes actores involucrados. Esto produjo un quiebre social, político, económico, cultural y simbólico en la localidad, con relación a la aceptación y el rechazo de la posible instalación de la multinacional. En 2016 se logró la expulsión definitiva de la empresa, convirtiéndose así en hecho paradigmático para otras luchas ambientales.

Dentro de la diversidad de aristas posibles de análisis de este conflicto, nos proponemos indagar sobre sus resonancias. La conflictividad es concebida como inherente a la sociedad capitalista; por ende, sus expresiones se traman necesariamente con otras luchas. De esta manera, partimos de la premisa de que el conflicto acontecido se sedimentó en el territorio y se expresa en continuidades y transformaciones de su propio devenir.
En este recorte empírico, intentaremos visualizar de qué manera se constituyen acciones tendientes a oponerse al modelo de agronegocios y, al mismo tiempo, se construyen otras alternativas productivas. Para ello, nos proponemos enfocar este trabajo exploratorio en una aproximación a algunas de las trayectorias individuales y colectivas, tanto en el transcurso de la lucha como a posterior, a través de entrevistas en profundidad a protagonistas del conflicto y revisión de fuentes documentales.
Pengaruh Pola Asuh Orang Tua Terhadap Perilaku Jajan Anak Usia Dini di TK Tunas Harapan Mopait Kabupaten Bolaang Mongondow
Authors: Korompot Tira Santika
Published: December 2022

Penelitian ini bertujuan untuk mengetahui pengaruh antara pola asuh orang tua terhadap perilaku jajan anak usia dini di TK Tunas Harapan Mopait Kabupaten Bolaang Mongondow. Adapun rumusan masalah yaitu apakah pola asuh orang tua berpengaruh terhadap perilaku jajan anak usia dini di TK Tunas Harapan Mopait Kabupaten Bolaang Mongondow. Jenis penelitian yang digunakan adalah penelitian kuantitatif. Data pada penelitian diambil dengan menggunakan angket atau kuesioner.Hasil penelitian mengungkapkan bahwa hasil uji regresi linear sederhana dengan Ftabel sebesar 5,178 dan nilai signifikansi = 0,035 yang berarti lebih kecil dari 0,05 menyatakan bahwa H0 ditolak dan Ha diterima. Sehingga bisa dikatakan bahwa terdapat pengaruh yang signifikan antara pola asuh orang tua terhadap perilaku jajan anak usia dini di TK Tunas Harapan Mopait Kabupaten Bolaang Mongondow dengan perolehan nilai R2 sebesar 0,223 atau setara dengan 22,3%, sisanya sebesar 77,7%, dipengaruhi oleh faktor lain, baik itu faktor lingkungan maupun faktor ekonomi. Demikian dapat dikatakan bahwa pola asuh orang tua dapat mempengaruhi perilaku jajan anak usia dini di TK Tunas Harapan Mopait Kabupaten Bolaang Mongondow.
MODEL PEMBELAJARAN SHALAT DI RAUDHATUL ATHFAL ARAFAH KOTA BITUNG
Authors: Hasnil Oktavera Itje Hamzah Kusnan
Published: December 2022

Penelitian ini membahas tentang model pembelajaran shalat di Raudhatul Athfal Arafah Kota Bitung, dengan tujuan mengkaji dan mendeskripsikan model pembelajaran shalat di Raudhatul Athfal Arafah Kota Bitung. Metode penelitian menggunakan pendekatan kualitatif. Teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Instrumen utama yang dalam pengumpulan data adalah peneliti sendiri yang dilengkapi oleh dokumen wawancara, hp, dan catatan lapangan. Data yang terkumpul kemudian dianalisis melalui langkah-langkah sebagai berikut: (1) reduksi data, (2) menyusun ke dalam unit- unit, (3) kategorisasikan atau dikelompokkan, (4) pemeriksaan keabsahan data (kredibilatas, transferabiliti, dependabilitas dan konfirmabilitas), dan (5) interprestasi data dan menyimpulkan. Hasil penelitian menyatakan model pembelajaran shalat di RA adalah model Klasikal, Kelompok, sudut, area, kooperatif dan model pembelajaran langsung. Program yang ditetapkan yaitu. a) pengenalan anggota wudhu dan cara berwudhu serta doa sebelum dan sesudah shalat. b) pengenalan gerakan shalat, menghapal doa shalat dan sesudah shalat. c) mempraktekkan tata cara shalat setiap jumat dan praktek shalat dhuha setiap dua minggu sekali
Upaya Peningkatan Kreativitas Anak Usia Dini Melalui Kegiatan Mewarnai Raudhatul Athfal (Ra) Al-Muhajirin Bitung
Authors: Kurniawan Irvan , Septogani Sonia
Published: December 2022

Jurnal ini bertujuan untuk mengetahui: 1) Upaya peningkatan kreativitas anak usia dini melalui kegiatan mewarnai di Raudhatul Athfal (RA) Al-Muhajirin Bitung; 2) Kendala yang dihadapi dalam peningkatan kreativitas anak usia dini melalui kegiatan mewarnai di Raudhatul Athfal (RA) Al-Muhajirin Bitung; 3) Solusi menghadapi kendala dalam meningkatkan kreativitas anak usia dini melalui kegiatan mewarnai di Raudhatul Athfal (RA) Al-Muhajirin Bitung. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan penelitian lapangan (field research).

Hasil yang diperoleh dari penelitian ini, bahwa 1) Upaya peningkatan kreativitas anak didik melalui kegiatan mewarnai di Raudhatul Athfal (RA) al-Muhajirin Bitung telah berjalan dengan baik. Dengan langkah-langkah berikut: a) guru memperkenalkan warna terlebih dahulu kepada anak didik; b) mengajak anak didiknya untuk mulai mewarnai gambar sederhana; c) setelah anak didik sudah merasa senang kemudian di ajak mewarnai hewan atau tumbuhan; d) guru mulai menerapkan aturan dalam mewarnai gambar dengan rapi tidak boleh keluar dari garis dan menyesuaikan warna dengan bentuk aslinya; e) lalu guru mengajak anak didiknya dalam kelas untuk mengenal campuran warna yang dapat membentuk warna lainnya; f) kemudian guru melakukan penilaian dengan membandingkan hasil dari kegiatan mewarnai sebelumnya dengan hasil yang sekarang; 2)

Terdapat dua kendala dalam peningkatan kreativitas anak usia dini melalui kegiatan mewarnai di Raudhatul Athfal (RA) al-Muhajirin Bitung, yaitu: a) faktor internal disebabkan karena usia masih terlampau muda yakni 4,5 tahun; dan 2) faktor eksternal, adanya pola asuh dari orangtua yang terlalu ketat mengawasi kegiatan anak, sehingga anak terhambat dalam pengembangan kreativitasnya; 3) Solusi menghadapi kendala dalam peningkatan kreativitas anak usia dini melalui kegiatan mewarnai di Raudhatul Athfal (RA) al-Muhajirin Bitung, yaitu: 1) melatih pola pikir anak; 2) ciptakan pembelajaran yang menyenangkan; 3) Buat anak agar mau belajar mengamati; 4) Biarkan mereka melakukan sendiri; 5) berikan apresiasi; 6) jangan memarahinya, dan 7) ajaklah mereka berkreasi sambil bermain.
Forming synthetic data for training a computer vision system
Authors: Kopylov Denis , Ageshin Yegor , Khomutskaya Olga
Published: December 2022

The article presents a method for generating synthetic data for training a neural network (hereinafter referred to as a neural network) to recognize existing objects. This method is designed to simplify the process of compiling the initial data set and modifying it for further application in the computer vision. An aircraft engine gearbox printed using additive technologies is used as a sample object for recognition. Three-dimensional models are loaded into Houdini three-dimensional editor, where a screenshot collection of the part on different backgrounds is saved using a sub-programme (hereinafter referred to as script) in Python. The received data set is applied to train three neural networks on the Roboflow website, and the results obtained are analysed for the possibility of using this method further. The article shows in detail the process of creating screenshots and the result of recognizing a printed part using three neural networks
Calculation optimal control system parameters for nonlinear dynamic processes of pulse voltage converters
Authors: Andriyanov Aleksey
Published: December 2022

A technique for choosing the optimal control system parameters for DC voltage converters is proposed, based on the joint application of the theory of linear automatic control systems and the theory of nonlinear dynamic systems. A small-signal structural dynamic model of an open loop of an automatic control system based on a direct step-up voltage converter with a control system for nonlinear dynamic processes based on a delayed feedback method is considered. Applying this model makes it possible to carry out a scientifically substantiated choice of the control system parameters for nonlinear dynamic processes using the methods of linear automatic control system theory. Bode diagrams of an open loop system are calculated without additional control of nonlinear dynamic processes and with additional control. The efficiency of using control systems for nonlinear dynamic processes is shown, which allows eliminating undesirable dynamic modes without additional parametric synthesis of the controller and, consequently, without reducing the system performance as a whole. In addition, applying these methods allows adjusting the controller parameters to increase the system performance without switching the system to undesirable dynamic modes. The results obtained can be applied at the stage of designing wide-class DC voltage pulse converters
PKM PENYULUHAN PENCATATAN KEUANGAN BAGI PELAKU USAHA MIKRO KECIL PADA KELURAHAN MEKARSARI DEPOK
Authors: Shahreza Dhona , Lindiawatie Lindiawatie , Ria Anita
Published: December 2022

Pelaku usaha mikro kecil memiliki kelemahan dalam pencatatan transaksi keuangannya. Kondisi ini pula yang terjadi pada sebagian besar pelaku usaha mikro kecil di kelurahan Mekarsari, Cimanggis, Depok. Sistem administrasi dan pencatatan keuangan yang diterapkan masih sangat sederhana. Bahkan, tidak jarang masih ada pelaku usaha mikro kecil yang belum dapat memisahkan pos keuangan usaha dengan keluarga (pribadinya). Ini menyebabkan mereka tidak mengetahui secara akuntansi laba yang sudah mereka dapat. Mengetahui permasalahan itu, dibutuhkan penyuluhan bagi mereka supaya terbuka cara pandang  dalam mencatat, mengadministrasikan dan membuat laporan keuangan yang benar. Tujuan abdimas ini adalah untuk memberikan penyuluhan dan simulasi cara pengelolaan administrasi keuangan secara terstruktur, terorganisir dan sistematis saat menyusun pendapatan dan pengeluaran, sehingga tidak tercampur antara keuangan pribadi dan usaha. Hasilnya adalah respon positif peserta dengan terbukanya cara pandang pelaku usaha mikro kecil tentang pembuatan laporan keuangan yang tepat. Namun, karena pengetahuan yang diperoleh hanya singkat, maka bekal yang diperoleh saat abdimas belum cukup, Oleh karenanya perlu ditindaklanjuti dengan pendampingan dan perlunya pedoman ringkas tata cara pembuatan laporan keuangan usaha mikro kecil yang bermaksud memudahkan mereka saat Menyusun laporan keuangan
PELATIHAN ZAHIR ACCOUNTING DALAM MENINGKATKAN KETERAMPILAN KOMPUTER AKUNTANSI DI SMK YAPERJASA
Authors: Saripah Saripah , Setiawati Nur Amega
Published: December 2022

Kegiatan pengabdian masyarakat dalam bentuk pelatihan penggunaan program akuntansi yang bertujuan untuk meningkatkan pengetahuan dan keterampilan guru dan siswa SMK YAPERJASA. Diharapkan dengan pemberian pelatihan, pihak sekolah dapat menambah pengetahuan tentang program akuntansi selain yang diwajibkan oleh pemerintah. Sedangkan untuk siswa diharapkan dapat menambah keterampilan lulusan di dunia kerja
PELATIHAN PUBLIC SPEAKING DALAM MENINGKATKAN SOFT SKILL REMAJA MASJID AL HADAD SAWANGAN DEPOK
Authors: Narsih Dwi , Rizkiyah Nur , Wahjuningtijas Rindang
Published: December 2022

Kegiatan pengabdian kepada masyarakat ini mengusung tema pelatihan public speaking yang bertujuan untuk dapat meningkatkan pengetahuan dan keterampilan masyarakat khususnya remaja masjid Al Hadad Sawangan Depok. Kegiatan ini diharapkan dapat meningkatkan soft skill remaja masjid Al Hadad terutama dalam keterampilan berkomunikasi di depan public. Selain itu kegiatan ini juga dapat melatih kepercayaan diri peserta pelatihan maupun masyarakat pada umumnya
PKM PENINGKATAN KEMAMPUAN LITERASI KEWIRAUSAHAAN PADA MILENIAL DI RAWAMANGUN JAKARTA TIMUR
Authors: Artino Adi , Hartono Darwin , Anco Anco
Published: December 2022

Kebutuhan pekerjaan yang semakin meningkat setiap tahunnya tidak berbanding lurus dengan ketersediaan lapangan kerja. Sehingga menyebabkan terjadinya gap pengangguran yang cukup besar. Kondisi ini memberikan dampak terhadap menunrunnya taraf ekonomi, meningkatnya kemisknan, yang diikuti dengan penurunan tingkat pendidikan dan taraf kesehatan. Salah satu upaya yang dapat ditempuh untuk mengurangi tingkat pengangguran adalah dengan mengadakan pendidikan, pelatihan, kursus, seperti kegiatan yang akan diselenggarakan dalam bentuk seminar /workshop “PKM Peningkatan Kemampuan Literasi Kewirausahaan Pada Milenial Di Rawamangun Jakarta Timur. Melalui kegiatan ini dibuat dalam bentuk group diskusi untuk diskusi tentang bagaimana dalam mengelola ide ide bisnis. Selain itu juga dilakukan pendampingan dalam memetakan ide-ide gagasan bisnis dari para anak muda atau milenial. Adapun materi yang diberkan pada kegiatan pengabdian masyarakat ini yaitu pentingnya kewirausahaan di era sekarang, strategi menangkap peluang usaha, rencana bisnis yang baik serta pengenalan manajerial usaha terdiri dari materi pengenalan manajemen produksi, pengenalan manajemen pemasaran, pengenalan akuntasi dasar atau pembukuan sederhana, dan pengenalan leadership dan manajemen sumber daya manusia. pada kegiatan ini juga dibuat grup diskusi masing masing 4 orang dengan memberikan materi tentang bisnis model kanvas lalu mempraktekkan ide bisnis dengan bisnis model kanvas
SOSIALISASI KEAMANAN TRANSAKSI BELANJA ONLINE PADA REMAJA KARANG TARUNA
Authors: Afrizal Thomas , Paramita Aulia , Sulaiman Han
Published: December 2022

Berbelanja dalam era belakangan ini menjadi bagian yang sangat penting untuk semua orang. Apalagi sekarang sedang pandemi covid 19, maka banyak yang membutuhkan barang-barang untuk menunjang segala kebutuhan. Maka pilihannya adalah berbelanja online , karena metode yang sangat mudah yaitu tinggal menggunakan Handphone atau gawai maka barang yang kita butuhkan sudah ada di depan rumah kita. Tinggal klik apa yang kita butuhkan saja. Namun untuk berbelanja online, kita harus waspada karena tidak jarang banyak orang yang tertipu dibuatnya. Dari yang barang nya tidak sampai ketangan si pembeli padahal si pembeli sudah membayar. Atau barang yang tidak sesuai dengan permintaan. Adalagi si pembeli mudah tergiur dengan harga yang murah , namun barang sama dengan pasaran. Hal ini digunakan oleh penipu sebagai celah yang sangat berharga. Pada saat si pembeli sudah transfer sejumlah dana untuk barang yang diinginkan, maka si penipu saat itu juga menutup akunnya dan membuat akun baru untuk menipu calon konsumen yang lain. Oleh karena itu , karena marak nya kejadian-kejadian yang menimpa banyak orang. Maka tim abdimas melakukan sosialisasi tentang keamanan bertransaksi berbelanja online. Karena pihak mitra menginginkan adanya kegiatan atau sosialisasi tentang kemanan berbelanja online. Selain untuk kebutuhan dari perkembangan zaman, tapi juga untuk menambah pengetahuan tentang berbelanja online.
Antibacterial, antioxidant, and phytochemical analysis of Piper longum fruit extracts against multi-drug resistant non-typhoidal Salmonella strains in vitro
Authors: Rawat Pallavi , Chauhan Vidya , Chaudhary Juhi , Singh Chhaya , Chauhan Neha
Published: December 2022

Most bacteria are becoming resistant to almost all of the currently recommended drugs, leading to difficulty in their treatment. The present study focused on evaluating the therapeutic potential of Piper longum fruit extracts in terms of bactericidal, antioxidant and phytochemical evaluation by conducting antibacterial sensitivity tests against four multidrug-resistant Salmonella strains (Salmonella enterica subsp. arizonae, Salmonella Newport, Salmonella enterica ser. Typhi, and Salmonella enterica ser. Paratyphi) obtained from the Institute of Microbial Technology (IMTECH), Chandigarh. The Agar Well Diffusion method and the Minimum Inhibitory concentration (MIC) methods were performed to implement the anti-sensitivity test of crude extracts of the plant. The present study showed that the MIC of the P. longum  was between 0.25-0.0625mg/ml, which was lowest in the aqueous extract at 0.5mg/100µl, and the highest in the methanol extract (1mg/100µl). The Minimum Bactericidal Concentration (MBC) was lowest in aqueous (0.5mg/100µl) and highest in methanol plant extract (1mg/100µl). The methanol extract had the maximum antibacterial potency, whereas the aqueous extract had the lowest. The antioxidant capacity of the plant extracts was determined using a DPPH assay. Methanol plant extract revealed the highest antioxidant power (81.92%) and the lowest was found in the aqueous extract (62.84%). The GC-MS approach identified active bioingredients, important botanicals including caryophyllene, eicosane, and piperazine (potent antibacterial agent) as naphthyridine (having antimicrobial, anticancer, and anti-inflammatory activities), among others. The unique aspect of the study was the effectiveness of P. longum against Salmonella strains that are resistant to multiple antibiotics. This suggests that P. longum can be a great source of novel antibacterial compound for the development of herbal formulations.
Community composition and status of avian diversity at Campus and Agricultural landscapes of Chaudhary Charan Singh Haryana Agricultural University, Hisar (Haryana)
Authors: Kiran  , Singh Dharambir , Kour Amit , Dahiya Priya , Delu Vikram , Kumar Rahul
Published: December 2022

Avian species diversity and their assemblage are responsible for maintaining the integrity and health of any ecosystem. Documentation of avian diversity in different habitats is sensitive tool for monitoring the environmental condition. The present investigation aimed to record the diversity of avian fauna at the main campus and agricultural landscapes of Chaudhary Charan Singh Haryana agricultural University, Hisar (Haryana). Line transect and point count methods were used to taking observations on different species of birds. A total of 101 bird species under 17 orders 43 families and 86 genera were recorded; out of them, 78, 17, 5 and one species were resident, winter migrant, summer migrant and passage migrant, respectively. Species richness of order Passeriformes was highest, followed by Pelecaniformes and Muscicapidae, the most diverse family in the study area. Analysis of food and feeding guilds revealed that the insectivorous guild is predominant, followed by Omnivore, Carnivore, Granivore, Frugivore and Nectarivore. Out of the total observed species, 23 have declining population trends at global level, whereas three species (Alexandrine Parakeet, Asian Woollyneck, Black-headed ibis) are listed as Near Threatened and Common Pochard is vulnerable as per IUCN Red List. The species richness was significantly higher in farmland, followed by main campus and experimental orchards. Jaccard’s similarity index between habitats revealed that the main campus and farmland area has a maximum (0.73) similarity in bird communities. This emphasises the significance of these study sites as key habitats for bird species of conservation priorities.
Agronomic biofortification of calcium in cabbage (Brassica Oleracea var capitata) applied with different sources of liming in Ca deficient acidic soil of Coonoor, The Nilgiris (Typic Dystropept)
Authors: Pavithra A. , Kaleeswari R. K. , Chitdeshwari T. , Priya R. Swarna , Uma D. , Lourdusamy D. Keisar
Published: December 2022

The human body needs calcium (Ca) to maintain strong bones and teeth and to build a strong structure, helping muscles contract and playing a crucial role in the structural and signalling process. However, low calcium consumption in the diet has related to a variety of disorders in humans, which can have long-term health repercussions. Therefore, this study aimed to evaluate the Ca biofortification capacity of cabbage (Brassica oleracea var capitata) supplied with different Ca-supplying inorganic fertilizer sources at various fixed levels based on soil liming potential grown in open field conditions where four hybrids of cabbage grown in Ca deficient acidic soil. Ca applied as Limestone (CaCO3) (150% and 175% liming potential) and Dolomitic limestone [CaMg(CO3)2]150% liming potential yield high Ca content in cabbage head and foliage (61.3 mg 100 g-1), high glucosinolates content (53.12 mg 100 g-1) and lower oxalate(0.31 mg 100 g-1) that produced firmer head as compared with Ca untreated control which also promoted high market value for Ca biofortified ones. On the other hand, Ca addition leads to lower Fe and Mg content in the cabbage tissues due to an antagonistic effect. All four hybrids of cabbage studied using the agronomic method of biofortification significantly(p≤0.05) improved Ca enrichment (20% more compared to control) without showing any toxicity symptoms making possibility to obtain Ca biofortified cabbage in acidic soil of a hilly ecosystem by application of liming.
Bioefficacy of insecticides used against diamondbackmoth and their potential impact on natural enemies in cauliflower
Authors: Beena R. , Selvi V.
Published: December 2022

Field experiments were conducted at two different geographical regions viz., tropical region (Naraseepuram village, Coimbatore) and temperate region (Kookal village, Kotagiri, The Nilgiris) in summer and winter season’s to assess the bioefficacy of insecticides used against Diamondbackmoth (DBM), Plutella xylostella and their potential impact on natural enemies in cauliflower. The results revealed that the diamide insecticides like cyantraniliprole 10.26 OD @ 60 g a.i ha-1, chlorantraniliprole 18.50 SC @ 10 g a.i ha-1 and flubendiamide 20 WG @ 18.24 g a.i ha-1 registered more than 95 percent population reduction over untreated control followed by emamectin benzoate 5 SG @ 10 g a.i ha-1 and thiodicarb 75 WP @ 750 g a.i ha-1. Quinalphos 25 EC @ 500 g a.i ha-1and chlorpyriphos 20 EC @ 400 g a.i ha-1 were observed as least effective among the treated insecticides. The diamide insecticides recorded considerably less toxic effect on the natural enemies, especially spiders and coccinellids. Population reduction of natural enemies was noticed immediately after insecticide spray but it gradually increased and was recorded on par with the control population. Hence, cyantraniliprole 10.26 OD @ 60 g a.i ha-1, chlorantraniliprole 18.50 SC @ 10 g a.i ha-1 and flubendiamide 20 WG @ 18.24 g a.i ha-1 can be used as potential component in the integrated pest management against DBM in cole crops.
Exogenous melatonin improves seed germination and seedling growth in greengram under drought stress
Authors: Anitha K. , Senthil A. , Kalarani M. K. , Senthil N. , Marimuthu S. , Djanaguiraman M. , Umapathi M.
Published: December 2022

Drought stress diminishes seedling germination and vigor by reducing water uptake, inhibiting plant growth and development. Most of the pulse growing areas are under rainfed ecosystems, which significantly reduces crop yield. Melatonin, a growth-regulating compound, is widely used to mitigate the negative effects of abiotic stresses in pulses. With this background, a laboratory experiment was conducted to standardize the optimum melatonin concentration for seed treatment and foliar application in greengram, to minimize the ill effects of drought stress. The experiment was arranged in a completely randomized design (CRD) with three replications for each treatment. The treatments consisted of soaking seeds with different melatonin concentrations, viz., 20, 40, 60, 80 and 100 μM. Seeds were sown in a perti dishes and the drought stress was imposed using poly ethylene glycol 6000 (PEG 6000) @ - 0.4 MPa, and plates were maintained at room temperature (24-30 °C). After the seedlings emerged, various seedling growth parameters like germination percentage, shoot length, root length, vigor index, promptness index, germination stress tolerance index, fresh and dry weight of the seedlings, plant height stress index and root length stress index were recorded. The experimental results showed that drought stress significantly reduced germination percentage and other growth-related parameters in greengram seedlings compared to the melatonin treatments. Among the melatonin treatments, seeds treated with @ 100 μM concentration recorded the highest germination percentage (99.67 %), promptness index (98.80), vigour index (1631.68), shoot and root length (8.9 cm and 7.5 cm), fresh and dry weight of the seedlings (3.249 and 0.147 mg seedling-1) under PEG induced drought stress condition.
Effect of in situ soil moisture conservation practices on maize and its crop residue incorporation on yield and economics of succeeding transplanted rice Var. ADT 46
Authors: Chakravarthy Gudapati Ashoka , Thiruppathi M. , Kandasamy S. , Dhanasekaran K.
Published: December 2022

Crop residue incorporation is a key component of sustainable cropping systems. It reduces the adverse effects of residue burning and enhances soil fertility. Effective usage of crop residue in the field and proper management are required. With this background, a field experiment was conducted during 2020 – 21 in the maize-rice cropping sequence at Annamalai University Experimental Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar, Tamil Nadu to find out the residual effect of different mulching practices adopted in preceding maize crop and maize stubble incorporation on the growth, yield and economics of transplanted rice Var. ADT 46. The field experiment was conducted in Factorial Randomized Block Design with three replications. In factor I, soil moisture conservation in preceding maize crop viz., mulching of sugarcane trash, water hyacinth, hydrogel and control were allotted. In factor II, different levels of maize crop stubble incorporation on rice viz., 0, 33, 66 and 100% were provided. Water hyacinth mulched plot (M3) to the preceding crop registered significantly (þ <0.05) higher yield parameters, yield and economic returns of succeeding rice. The lower values were observed in unmulched (M1) plot. With respect to maize crop stubble incorporation on rice crop, the incorporation of 66% (SI3) of maize stubble registered higher yield parameters, yield and economic returns. In the interaction effects, mulching with water hyacinth to preceding maize + maize crop stubble incorporation at 66% in rice crop (M3SI3) recorded significantly (þ <0.05) higher yield parameters, yield and economic returns than other treatments. The lowest values were recorded with an unmulched + 100% crop residue incorporated (M1SI4) plot. Mulching the preceding maize crop with water hyacinth at a rate of 12 t ha-1 and incorporating 66% maize stubble into the transplanted rice (M3SI3) had a remarkable yield advantage and financial rewards.
A review on regulatory control of chromium stress in plants
Authors: Yadav Priyanka , Sharma Asha , Singh Sandeep
Published: December 2022

Chromium (Cr) is a non-biodegradable heavy metal that persists long in aquatic and terrestrial ecosystems and enters the food chain. It is cytotoxic even at low concentrations and reduces the yield of plants. Plants also have cellular mechanisms to manage the accumulation of metal ions inside the cell to diminish the possible injury from non-essential metal ions. This paper reviews current information on plant response to Cr, a key environmental pollutant. The harmful effects together with absorption, transfer, and aggregation of Cr are discussed. The roles of the cell wall, plasma membrane, and plant microbes as the primary hindrances for Cr ingression into the cell, along with sequestration and compartmentalization process, have also been discussed. Cr-generated oxidative injury is also regarded as the main deliberated effect of Cr toxicity.  It interferes with NADPH oxidases (plasma membrane) and the electron transport chains, which develop electron leakage. Some genes related to Cr stress in plants get expressed, and suppression produces protective effects by activating the signal transduction pathways. The expression of genes like BnaCnng69940D and BnaC08g49360D is increased, which is involved in protein kinase activity, signal transduction, and oxidoreductase activity. The increased mRNA levels of Cr stress response proteins, including HSP90-1 and MT-1, have been reported in the Brassica napus plant. The stressed environment around the plants may stimulate the biosynthesis of phytochelatins and metal-binding proteins, which have a protective role in plant’s growth and development.
Assessment of seedling traits of rice landraces under different saline conditions
Authors: Shafeeqa T. , Ravichandran V. , Senthil A. , Arul L. , Radhamani S.
Published: December 2022

Salinity is one of the major abiotic stresses affecting rice growth and yield worldwide. In rice, the most critical stages which affect salinity at a greater level are germination, vegetative and reproductive stages.It is very important to know the genotypic variation among landraces under saline conditions at the seed germination stage to reduce the harmful effect of salinity. The present study conducted on Petri plate was mainly for assessing germination, relative water content and seedling parameters of eleven rice landraces with check landrace Pokali under three different salt concentrations (75mM, 125mM and 150mM). Two-way ANOVA gave the variations among the genotypes, treatments and their interactions. The present study showed that Mundan, Odiyan, Muttadan, Kallimadiyan and Vellimuthu had less percentage reduction in growth parameters at the germination stage. Odiyan and Mundan showed less percentage reduction in fresh weight (36.09%) and  shoot length (25.61%) respectively, in relative water content  (10.70% and 16.07%, respectively) at higher concentrations of salinity (150mM) compared to control. Pokali, Chembakam and Odiyan showed good germination parameters under three different saline treatments compared to other genotypes. Biplot analysis showed 65.4% variation between the treatments, whereas the variation between the genotypes was around 13.3%. Screening of landraces for salinity tolerance at the seed germination stage is the most reliable method to identify the salt tolerant line at the early seedling stage. The present study can be used for further screening programme at the vegetative stage for the identification of potential salt tolerant lines to improve breeding and gene introgression studies.
Effect of copper, nickel and lead on callus growth dynamics of Solanum lycopersicum
Authors: Kumari Anjana , Nagpal Avinash Kaur , Katnoria Jatinder Kaur
Published: December 2022

Solanum lycopersicum cv. (Punjab Kesar Cherry) (Tomato) belonging to family Solanaceae has been priced for the presence of lycopene, low sugar content and curative properties. However, the productivity of tomatoes has been observed to be low due to both biotic as well as abiotic stress. Considering the toxicity of copper (Cu), lead (Pb) and nickel (Ni) as environmental contamination and the economic importance of S. lycopersicum, the present study was undertaken to investigate the effects of these heavy metals on various growth parameters of callus cultures and plantlet regeneration. Callus induced through nodal segments was inoculated on Murashige and Skoog medium containing different concentrations (0 µM, 50 µM, 100 µM, 200 µM, 300 µM, 400 µM and 500 µM) of copper, lead and nickel. Decrease in different growth parameters was observed as 91.66-16.66 %, 76.38-11.11 %, 81.94-13.88 % for percent callus survival,  90.90-25 %, 72.72-37.50 %, 79.66-20 % for percent callus multiplication, 79.54-0 %, 82.75-33 %, 63.8-50 %  for percent root regeneration and 73.33-33 %, 72.50-33 %, 79.6- 20 % for percent shoot generation with increasing concentrations of Cu, Pb and Ni, respectively. Decrease in the average fresh and dry weight of callus was observed for all the metals. The order of toxicity was observed as Pb > Ni > Cu at the highest concentrations used for treating S. lycopersicum. The present study revealed that all three metals induced stress in the studied plant and need attention to developing methods to mitigate the consequences of metal toxicity in crop plants.
Novel method to manage weeds in the rainfed groundnut (var. VRI 8 and TMV 14) using nano encapsulated herbicide formulations
Authors: Swetha S. , Chinnamuthu C. R. , Arthanari P. Murali , Marimuthu S. , Senthil A.
Published: December 2022

The groundnut crop harbours heavy weed infestation due to its small stature and slow growing nature. The current weed management practices of hand weeding and use of commercial herbicides are unsuitable because of high labour cost and inadequate moisture availability to activate herbicides.  In order to release the herbicide in a smart way, this experiment aimed to study the efficacy of encapsulated herbicides . Field experiments were conducted during Kharif 2021 and late Rabi 2022 under rainfed conditions in randomised block design with three replications. The treatments consisted of sulfentrazone, oxyfluorfen, diclosulam and metolachlor in both commercial and encapsulated form using two doses, hand weeding at 20 and 40 DAS, weed free plot and weedy check. Minimum weed density (28.33 and 17.30 No./m2 at 90 DAS during Kharif and late Rabi respectively) and weed dry weight (65.33 and 61.25 g/m2 at 90 DAS during Kharif and late Rabi respectively) were observed in hand weeding at 20 and 40 DAS (T19) followed by diclosulam @ 25 g ha-1 with encapsulation (T7). Maximum weed density and weed dry weight was observed in metolachlor @ 1 kg/ha with encapsulation (T8). Higher productivity was observed in hand weeding at 20 and 40 DAS (T19) (1802 kg ha-1  and 1753 kg ha-1  pod yield during Kharif and late Rabi respectively) and higher profitability was obtained in diclosulam @ 25 g ha-1 with encapsulation (T7) (1.80 and 2.01 B:C ratio during (Kharif and late Rabi respectively). Nano-encapsulated herbicides can thus significantly improve weed control in rainfed groundnut.
The Revealed Preferences for School Reopening: Evidence From Public-School Disenrollment
Authors: Dee Thomas S. , Huffaker Elizabeth , Phillips Cheryl , Sagara Eric
Published: December 2022

Before the 2020–2021 school year, policymakers and parents confronted the uncertain trade-offs implied by the health, educational, and economic consequences of offering instruction remotely, in person, or through a hybrid of the two. Most public schools in the United States chose remote-only instruction, and enrollment fell dramatically (i.e., a loss 1.1 million K–12 students). We examine the impact of these choices on public-school enrollment using panel data that combine district-level information on enrollment and instructional mode. We find offering remote-only instead of in-person instruction reduced enrollment by 1.1 percentage points (i.e., 42% greater disenrollment). The disenrollment effects of remote instruction are concentrated in kindergarten and, more modestly, elementary schools. We do not find evidence that hybrid instruction had an impact.
Familial Hypercholesterolemia Patients with COVID-19—Effective Cholesterol-Lowering Therapy is Urgent both during and after Infection
Authors: Vuorio Alpo , Raal Frederick , Kovanen Petri T.
Published: December 2022

Heterozygous familial hypercholesterolemia (HeFH) patients are the prime example of subjects who are at high risk for both acute myocardial infarction (AMI) and ischemic stroke during, and post, SARS-CoV-2 infection. HeFH per se, if left untreated, results in premature clinical atherosclerosis often presenting in the fourth or fifth decade of life. The other concern in HeFH is endothelial dysfunction which is already evident from early childhood. In untreated HeFH patients, the severe hypercholesterolemia causes endothelial dysfunction from an early age, and as a result thereof, atherosclerotic lesions develop prematurely, particularly in the coronary arteries, and result in further endothelial dysfunction and inflammation in these critical segments of the arterial tree. As the pre-existing endothelial dysfunction in HeFH patients is most likely sensitive to further direct and indirect SARS-CoV-2 virus-dependent damage, we can infer that HeFH serves as an example of a comorbidity that predicts a poorer prognosis with COVID-19 infection. Indeed, a large US national database study showed that patients diagnosed with HeFH and SARS-CoV-2 infection had significantly increased Annualized Incidence Density Rates (AIDRs) of AMI when compared to matched HeFH controls not having been diagnosed with SARS-CoV-2 infection. Effective cholesterol lowering is essential for the prevention, or at least alleviation, of the detrimental effects of SARS-CoV-2 infection among HeFH patients. Due to the pre-existing subclinical or even clinical atherosclerotic cardiovascular disease in subjects with HeFH, cholesterol-lowering treatment needs to be continued or, better still, intensified during, and for an extended period post, SARS-CoV-2 infection.
Protective Effect of Remote Ischemic Preconditioning against Myocardial Ischemia-Reperfusion Injury in Rats and Mice: A Systematic Review and Meta-Analysis
Authors: Chen Lu , Weng Yan , Qing Ailing , Li Jun , Yang Pingliang , Ye Ling , Zhu Tao
Published: December 2022

Background: Remote ischemic preconditioning (RIPC) has cardioprotective effects. This study was designed to evaluate the effectiveness and potential influencing factors of RIPC for myocardial ischemia-reperfusion injury (MIRI) in rats and mice. Methods: The PubMed, Web of Science, Embase, and Cochrane Library databases were searched to identify animal model studies that explored the effect of RIPC on MIRI. The primary outcome was myocardial infarct size, and secondary outcomes included serum cardiac markers, vital signs, hemodynamic parameters, and TUNEL-positive cells. Quality was assessed using SYRCLE’s Risk of Bias Tool. Results: This systematic review and meta-analysis included 713 male animals from 37 studies. RIPC significantly protected against MIRI in small animal models by reducing infarct size, decreasing serum myocardial marker levels and cell death, and improving cardiac function. Subgroup analysis indicated that RIPC duration and sites influence the protective effect of RIPC on MIRI. Meta-regression suggested that study type and staining method might be sources of heterogeneity. The funnel plot, Egger’s test, and Begg’s test suggested the existence of publication bias, but results of the sensitivity analysis and nonparametric trim-and-fill method showed that the overall effect of RIPC on MIRI infarct size was robust. Conclusions: RIPC significantly protected against MIRI in small animal models by reducing infarct size, decreasing serum myocardial markers and limiting cell death, and improving cardiac function. RIPC duration and site influence the protective effect of RIPC on MIRI, which contributes in reducing confounding factors and determines the best approach for human studies.
TED TALKS AS A MEDIA RESOURCE TO STIMULATE THE DEVELOPMENT OF PROFESSIONAL FLEXIBILITY OF SENIOR EXECUTIVES OF COMPANIES IN THE SYSTEM OF ADDITIONAL EDUCATION
Authors:   South Ural State University, Suyuzumova L.A. , Kotlyarova I.O. ,   South Ural State University, Voloshina I.A. ,   South Ural State University
Published: December 2022

In the context of the modernization of the economy in the BANI world, there is a strong urge for high-quality training of senior executives of companies with a high level of professional exibility. The purpose of this study is to theoretically substantiate the stimulation of the development of professional exibility when using TED Talks as an e-learning media resource. Using the methods of document analysis, theoretical analysis, comparison, contextual and morphological analysis and synthesis, the following results were obtained: the de nition of the e-learning tool TED Talks, identi ed its capabilities and substantiated the adequacy of the formation of professional exibility of senior executives of companies with its help. The TED Talks package of electronic tools was developed and tested, which includes materials for stimulating the development of strategic management abilities of senior executives of companies, human resources of the enterprise, market analysis, the use of technical innovation, action in unforeseen circumstances, and self-improvement. The materials of this article can be useful to teachers involved in the implementation of programs for continuing professional development in English.
OPTIMAL PARAMETERS OF THE ELEMENTS OF THE PARTS OF THE FOOD GRINDER MECHANISM
Authors:   Kabardino-Balkarian State University H.M. Berbekov, Islamova O.V. , Tokov A.Z. ,   Kabardino-Balkarian State University H.M. Berbekov, Zhilyaev A.A. ,   Kabardino-Balkarian State University H.M. Berbekov, Volkova R.M. ,   Kabardino-Balkarian State University H.M. Berbekov
Published: December 2022

The article analyzes the parameters of the elements of the parts of the food grinder, such as the shape of the working holes in the grate and the shape of the blades of the movable knife, as well as the properties of the material from which they are made. Based on the analysis, the optimal parameters are given that will improve the quality of the grinding process, namely its energy efficiency.