bluuebunny/crossref_metadata_2025 huggingface dataset:
PENERAPAN METODE PENUGASAN UNTUK MENINGKATKAN KEAKTIFAN DAN HASIL BELAJAR MATEMATIKA SISWA KELAS VII B MTS NURUL IKHLAS SEPANDE CANDI SIDOARJO
Authors: WINARNI PUDJI
Published: December 2023

This research aims to improve the activity and mathematics learning outcomes of class VII B students at MTS Nurul Ikhlas Sepande Candi Sidoarjo by applying the assignment method. This research is classroom action research using the assignment method. The subjects of this classroom action research were 40 students in class VIII A at MTs Nurul Ikhlas Sepande Candi Sidoarjo. This research was carried out from February 2019 to April 2019. The types of data collection techniques used by researchers in this research were tests, observation and documentation. Data analysis uses quantitative techniques. The assignment method can increase activity and mathematics learning outcomes on the main material of quadrilaterals. This is proven by an increase from pre-cycle with an average score of 54.03 with classical learning completeness of 47.2%, increasing to 68.89 with classical learning completeness of 66.67% in cycle I, and in cycle II the average class VII B increased to 74.23 with classical learning completion reaching 85.71%. Likewise, student activity increased with an active percentage of 56.04% in cycle I, increasing to 76% in cycle II. So it can be concluded that learning using the assignment method can increase activity and mathematics learning outcomes on the main material of quadrilaterals at MTs Nurul Ikhlas Sepande Candi Sidoarjo

ABSTRAKPenelitian ini bertujuan untuk meningkatkan keaktifan dan hasil belajar matematika siswa kelas VII B MTS Nurul Ikhlas Sepande Candi Sidoarjo dengan penerapan metode penugasan.  Penelitian ini merupakan penelitian tindakan kelas dengan penerapan metode penugasan. Subyek penelitian tindakan kelas ini adalah siswa kelas VIII A di MTs Nurul Ikhlas Sepande Candi Sidoarjo sebanyak 40 siswa. Penelitian ini dilaksanakan mulai bulan Pebruari 2019 sampai dengan bulan April 2019. Jenis teknik pengumpulan data yang digunakan oleh peneliti pada penelitian ini adalah tes, observasi, dan dokumentasi. Analisis data menggunakan teknik kuantitatif. Metode penugasan dapat meningkatkan keaktifan dan Hasil belajar matematika pada materi pokok segiempat. Hal ini terbukti dengan adanya peningkatan dari pra siklus dengan nilai rata-rata 54,03 dengan ketuntasan belajar klasikal 47,2%, meningkat menjadi 68,89 dengan ketuntasan belajar klasikal 66,67% pada siklus I, dan pada siklus II rata-rata kelas VII B meningkat menjadi 74,23 dengan ketuntasan belajar klasikal mencapai 85,71%. Begitu juga dengan keaktifan peserta didik mengalami peningkatan dengan prosentase keaktifan sebesar 56,04% pada siklus I, meningkat menjadi 76% pada siklus II. Sehingga dapat ditarik kesimpulan bahwa pembelajaran dengan metode penugasan dapat meningkatkan keaktifan dan hasil belajar matematika pada materi pokok segiempat di MTs Nurul Ikhlas Sepande Candi Sidoarjo
GANGGUAN CEMAS PADA LANSIA : SEBUAH LAPORAN KASUS
Authors: SUMINAR THERESIA ELISABETH LINTANG , DINIARI NI KETUT SRI
Published: December 2023

All humans will undergo aging, which has significant impacts both physically and mentally. Anxiety disorders are psychiatric disorders commonly encountered in the elderly and correlate with increased health burden, morbidity, mortality, and poor quality of life. The elderly with cardiovascular and multimorbid diseases are at a higher risk of experiencing anxiety disorders. This disorder can be a continuation of previous occurrences or a first-time event. The interaction between neurobiological, psychological, and environmental factors triggers the onset of this disorder. Diagnosis enforcement is often challenging due to comorbidity with other psychiatric disorders such as depression or cognitive disorders, as well as the similarity of anxiety symptoms to symptoms caused by other medical conditions or aging. The elderly find it difficult to accurately describe and identify anxiety. Expertise is required to establish an accurate diagnosis. Unfortunately, this disorder often does not receive proper treatment, even though optimal management is crucial to improving outcomes and achieving optimal quality of life in the elderly. Pharmacotherapeutic approaches require special attention due to the impact of aging on organ function.
ABSTRAKSemua manusia akan mengalami penuaan yang memiliki dampak signifikan baik secara fisik maupun mental. Gangguan cemas merupakan gangguan psikiatri yang sering dijumpai pada lansia, dan berkorelasi dengan peningkatan beban kesehatan, morbiditas, mortalitas dan kualitas hidup yang buruk. Lansia yang menderita penyakit kardiovaskular dan multimorbitas memiliki risiko yang lebih tinggi untuk mengalami gangguan cemas. Gangguan ini dapat merupakan kelanjutan terhadap kejadian sebelumnya atau sebagai kejadian pertama. Adanya interaksi antara faktor neurobiologi, psikologis dan lingkungan memicu timbulnya gangguan ini. Penegakan diagnosis seringkali menantang, karena berkomorbid dengan gangguan psikiatri lainnya seperti depresi atau gangguan kongnitif, serta adanya kemiripin gejala cemas dengan gejala akibat kondisi medis lain, atau akibat penuaan. Lansia sulit untuk mendeskripsikan dan mengidentifikasi cemas secara akurat. Perlu keahlian dalam menegakan diagnosis yang akurat. Sayangnya, gangguan ini sering kali belum mendapatkan penanganan yang baik, padahal tatalaksana optimal penting untuk meningkatkan luaran dan mencapai kualitas hidup yang optimal pada lansia. Pendekatan farmakoterapi membutuhkan perhatian khusus sebagai dampak penuaan pada fungsi organ tubuh.
LAVAGEM PERITONEAL OU SIGMOIDECTOMIA? ANÁLISE COMPARATIVA NO MANEJO DA DIVERTICULITE AGUDA COMPLICADA
Authors: Lira Matheus Zaian Rodrigues da Fonseca , Oliveira Mateus de Sousa Leite , Souza Samuel Lima de , Menezes Jefferson Bruno Torres de , Oliveira Filho Marcelo Luís do Patrocínio de , Leite Mariana Bezerra , Silva Bindá de Queiroz Ana Safira , Queiroz Ana Beatriz Silva Bindá de , Araújo David Augusto Batista Sá , Oliveira Iuri Cunha de , Martins Marcos Antônio Rodrigues
Published: December 2023

A diverticulite aguda complicada é uma condição que pode levar a complicações graves, como perfuração, abscesso ou peritonite. O tratamento adequado é essencial para reduzir a morbimortalidade associada a essa condição. Duas abordagens cirúrgicas têm sido amplamente utilizadas: sigmoidectomia e lavado peritoneal diagnóstico. Foi conduzido uma revisão integrativa da literatura para identificar estudos que compararam a sigmoidectomia com o lavado peritoneal diagnóstico no tratamento da diverticulite aguda complicada, incluindo estudos retrospectivos e prospectivos que avaliaram desfechos como mortalidade, morbidade, tempo de internação, complicações pós-operatórias e qualidade de vida. A sigmoidectomia é frequentemente associada a uma maior taxa de resolução da diverticulite aguda complicada, uma vez que remove a fonte da infecção. No entanto, a sigmoidectomia é uma cirurgia mais invasiva e pode estar relacionada a uma maior morbidade pós-operatória, incluindo complicações como fístulas, estenoses e infecções de ferida. Por outro lado, o lavado peritoneal diagnóstico, que consiste na drenagem e irrigação do abdômen, é uma abordagem menos invasiva, mas pode ser associado a uma maior taxa de recorrência da diverticulite aguda complicada. A sigmoidectomia tende a ser mais eficaz na eliminação da fonte da infecção, enquanto o lavado peritoneal diagnóstico pode ser uma opção viável para pacientes frágeis ou com contraindicações para cirurgia mais invasiva. Este estudo tem como objetivo realizar uma análise comparativa dessas duas estratégias no tratamento da diverticulite aguda complicada.
A INFLUÊNCIA DO FINANCIAMENTO DE CAMPANHA NO SISTEMA ELEITORAL BRASILEIRO
Authors: Cartibani Yuri Rocha , Andrade George
Published: December 2023

O financiamento de campanha no sistema eleitoral brasileiro é um tema de grande relevância e discussão tanto no âmbito político quanto acadêmico. Desde a promulgação da Lei nº 9.504/1997, que regulamentou as eleições no Brasil, surgiram debates sobre a influência das contribuições de empresas e pessoas físicas nos processos eleitorais. Estudos apontam que o financiamento de campanha pode exercer um impacto significativo no resultado das eleições, beneficiando candidatos com acesso a recursos financeiros mais expressivos. Além disso, a maneira como o financiamento é conduzido pode gerar consequências negativas para a democracia, como a utilização de dinheiro em troca de favores políticos. O objetivo geral é analisar a influência do financiamento de campanha no sistema eleitoral brasileiro, considerando elementos como o montante de recursos recebidos e a origem desses recursos. A importância desse tema reside na necessidade de compreender seus efeitos na democracia brasileira e contribuir para o debate sobre reformas no sistema político-eleitoral.
O PERÍODO PANDÊMICO E SUA INFLUÊNCIA NO MERCADO BRASILEIRO
Authors: Jesus Sayara Costa de , Silva Vinicius Freitas da , Santis Sandra Helena da Silva de
Published: December 2023

A pandemia teve um impacto profundo nas empresas devido a medidas de isolamento e fechamento de atividades. O objetivo é pesquisar a influência do período pandêmico, a fim de retratar o impacto no mercado. Identificando as tomadas de decisões em gestões de crise. A pesquisa também examina como as empresas enfrentaram esses desafios, visando evitar o fechamento. Os resultados mostram que a pandemia mudou o padrão de demanda, aumentou a instabilidade de preços e afetou os prazos de entrega. Muitas empresas tiveram que se adaptar e inovar.
REVISÃO CRIMINAL E DIREITOS HUMANOS: UMA ANÁLISE DA REVISÃO CRIMINAL SOB A PERSPECTIVA DOS DIREITOS HUMANOS
Authors: Campos Gabrielle Silva
Published: December 2023

O objetivo geral deste trabalho é analisar a revisão criminal à luz dos direitos humanos buscando compreender como esse instituto processual pode contribuir para a efetiva proteção dos direitos fundamentais das pessoas. Como metodologia realizou-se uma pesquisa descritiva, com abordagem qualitativa, onde o levantamento bibliográfico foi realizado em um recorte de tempo, entre os períodos de 2017 a 2023. Este trabalho trouxe um embasamento bastante significativo por analisar os fundamentos teóricos e legais de um processo penal com o objetivo de analisar uma sentença condenatória ou uma decisão final. Ao concluir este estudo, chegou-se ao entendimento de que a revisão criminal é um importante procedimento jurídico que visa a reexaminar uma decisão judicial já transitada em julgado, ou seja não passível de recurso. Ela pode ser solicitada quando existe a possibilidade de se comprovar a inocência do réu ou de se descobrir novas evidências que possam alterar o resultado do julgamento.
EFICÁCIA DOS TRATAMENTOS ESTÉTICOS CONTRA A FLACIDEZ ABDOMINAL PÓS GESTAÇÃO
Authors: Figueroa Janaína Macêdo , Andrade Mariana Moreira
Published: December 2023

A flacidez abdominal é uma condição comum que pode ocorrer após a gestação, devido às mudanças físicas que ocorrem durante a gravidez. Durante a gestação, o abdômen se estica para acomodar o crescimento do feto, e após o parto, a pele e os músculos podem não retornar à sua posição original, resultando em flacidez abdominal. Existem várias causas para a flacidez abdominal pós-parto, incluindo o ganho de peso durante a gestação, a falta de atividade física e a genética. Embora a flacidez abdominal possa ser frustrante, existem maneiras de minimizar sua aparência. Isso inclui exercícios de fortalecimento abdominal, bem como uma dieta saudável e equilibrada para ajudar a reduzir o excesso de gordura, assim como os procedimentos estéticos que são eficazes e estão ajudando as mulheres a ganharem a autoestima, e a saúde mental.
LESÕES GLENOUMERAIS EM INDIVÍDUOS COM DISCINESE DA CINTURA ESCAPULAR: UMA REVISÃO INTEGRATIVA
Authors: Santos Adrian Ribeiro dos , Azevedo Leonardo Malta
Published: December 2023

Este estudo possui como objetivo geral identificar quais são os fatores que influenciam para a aparição da discinese escapular e os objetivos específicos deste estudo são: descrever quais são os mecanismos que contribuem para o acometimento da articulação glenoumeral, expor os agentes causadores das lesões glenoumerais e relatar as principais formas de tratamento e prevenção desses fatores. É uma revisão integrativa da literatura que possui como base de dados: PEDro, Scielo, PubMed, Lilacs. Este trabalho utiliza como critério de inclusão artigos originais disponibilizados na íntegra e trabalhos que abordassem lesões glenoumerais e discinese da cintura escapular e como critério de exclusão, artigos incompletos e trabalhos que não alcançassem acerca da temática. Como resultados, pode-se destacar que o encurtamento do músculo peitoral menor está diretamente ligado com o surgimento da discinese escapular, devido à anteriorização escapular durante o movimento. Relata-se também que qualquer alteração que afete a dinâmica entre os músculos trapézio, rombóides, elevadores da escápula, serratil anterior e peitoral menor pode acarretar no aumento da discinese escapular. Por fim, conclui-se que a prática de exercícios físicos específicos geram alívio da dor e diminuem a discinese escapular.
DESAFIOS NA SAÚDE PÚBLICA E A CRIMINALIZAÇÃO DO ABORTO
Authors: Avila Ana Carolina Santos de , Silva Vithória Mendes e
Published: December 2023

O presente trabalho tem como objetivo fazer uma análise acerca dos desafios na saúde pública e a criminalização do aborto no ordenamento jurídico brasileiro. Para tanto, o presente trabalho foi realizado a partir de pesquisas teóricas em materiais bibliográficos, bem como através de buscas de dados que possam contribuir para um maior embasamento do tema desenvolvido. Além disso, foi realizada pesquisa doutrinária e jurisprudencial acerca do tema, visando demonstrar como o aborto é tipificado no ordenamento jurídico brasileiro e como a tipificação penal não impede que centenas de mulheres se submetam a procedimentos arriscados para realizar o aborto, acarretando consequências severas para mulheres e para a saúde pública. Buscou-se, ainda, voltar a atenção para os princípios constitucionais fundamentais da vida e da liberdade, bem como fazer uma análise do crime de aborto, previsto no Código Penal brasileiro.
O PROGRAMA DESENROLA BRASIL – ESTÍMULO À ECONOMIA OU A MAIS ENDIVIDAMENTO DAS FAMÍLIAS?
Authors: Josino Josivan Rocha , Fonteles José Célio Pessoa , Pordeus Marcel Pereira
Published: December 2023

O presente trabalho visa analisar o programa de renegociação de dívida, chamado de Desenrola Brasil, que foi implantado em 17 de julho de 2023, e tem por objetivo restabelecer a regularidade do cadastro das pessoas físicas junto aos Bureaus de Crédito, e consequentemente estimular a economia com a entrada de novos candidatos a crédito e aquecimento do consumo interno no país. Como toda política pública de crédito de caráter abrangente, poderá beneficiar milhões de famílias com a retirada de seu nome dos cadastros restritivos e estimular a economia, assim como eventualmente provocar novos endividamentos a partir do acesso descontrolado ao crédito. É nessa dicotomia de cenários que esse estudo se debruçará, buscando debater as vertentes dessa problemática tão atual.
FIBROPAPILOMA DE GLANDE EM BOVINO – RELATO DE CASO
Authors: Santos Ana Paula Alves de Assis , Araujo Kleberson Conrado de
Published: December 2023

Este artigo buscou trazer ao leitor mais informações, de forma clara e objetiva sobre o que causa o fibropapiloma de glande, as formas de diagnóstico, tratamento e manejo pós-operatório cabíveis para um caso como o relatado a seguir. Um dos pilares da economia brasileira é a bovinocultura de corte, por isso as doenças que acometem o trato reprodutivo como: acropostite-fimose, abcessos, hematomas, fibropapiloma de glande, entre outras citadas são de grande importância veterinária. O fibropapiloma de glande, causado pelo papilomavírus tipo 2 é uma das doenças que afetam a eficiência reprodutiva dos animais, pois é um importante causador da impotência coeundi e um grande propagador de doenças venéreas. O referido vírus acomete na maior parte, os touros jovens que ainda não estão em idade reprodutiva. As lesões no presente relato, localizavam-se no corpo e a lesão mais grave na glande do animal. A localização da lesão na glande facilita o contágio devido a monta e aos comportamentos de sodomia. O diagnóstico clinico confirmou a presença de verrugas cutâneas no corpo do animal, que são sugestivas de papilomatose cutânea e o diagnóstico final foi feito por meio de exame histopatológico da lesão na glande, que confirmou a suspeita clínica de fibropapiloma de glande. O tumor presente na glande do animal, estava em crescimento progressivo, era de coloração rósea, aspecto grumoso e fétido e foi retirado através de uma falectomia parcial somada a orientação veterinária ao proprietário. A recuperação do animal foi satisfatória, mas ele não voltou as atividades reprodutivas.
MmWave scattering properties of roads on rough asphalt and concrete surfaces
Authors: Kurz Vera , Fuenfer Manuel , Pfeiffer Florian , Biebl Erwin
Published: December 2023

Abstract. In this work, a synthetic aperture radar setup is used for analyzing the mmWave scattering of road surfaces in the automotive 77 GHz band in the laboratory. With this setup, samples of concrete roads in two different surface conditions are investigated, determining the variances in reflectivity depending on material composition and surface structure. Afterward, the distribution of these variations is fitted using probability density functions, namely normal and rayleigh distribution fits. Consequently, the diffuse scattering behavior of concrete roads can be described mathematically. Additionally, previously presented porous asphalt roads are compared and fitted analogously to get a summary of the scattering for all common road surfaces in Germany. Furthermore, a validation of the measurement and the processing by analyzing particularly generated reference samples is performed.
Hybrid integrators with predictive overload estimation for analog computers and continuous-time ΔΣ modulators
Authors: Killat Dirk , Ulmann Bernd , Köppel Sven
Published: December 2023

Abstract. Continuous-time integrators are a central component in ΔΣ modulators, in analog computers, and general analog signal processing. If several integrators are interconnected, scaling plays an important role: In analog computers, scaling is performed with respect to the machine unit (MU). In ΔΣ modulators, scaling is performed in such a way that at maximum input signal the allowable dynamic range of no integrator is exceeded. In both cases the scaling is a compromise limiting the dynamic range. For analog computers, it was proposed early on to extend the dynamic range by hybrid integrators. Here, an analog range overflow is processed digitally and the analog integrator is reduced to its permissible operating range within the machine unit interval. While in earlier proposals for hybrid integrators only the subsequent integrator stage processes the overflow and works with reduced analog values, our hybrid integrator can process the overflow directly, with the analog reset process being continuous-time. In the case of highly dynamical input signals and transients, analog overload handling is further improved by a prediction of the overload that includes the currently applied input signal in the calculation. For example, with continuous-time ΔΣ modulators, overload of the analog integrator can be reliably avoided.
Sentinel-1 Detection of Ice Slabs on the Greenland Ice Sheet
Authors: Culberg Riley , Michaelides Roger J. , Miller Julie Z.
Published: December 2023

Abstract. Ice slabs are multi-meter thick layers of refrozen ice that limit meltwater storage in firn, leading to enhanced surface runoff and ice sheet mass loss. To date, ice slabs have largely been mapped using airborne ice-penetrating radar, which has limited spatial and temporal coverage. This makes it difficult to fully assess the current extent and continuity of ice slabs or to validate predictive models of ice slab evolution that are key to understanding their impact on Greenland’s surface mass balance. Here, for the first time, we map the extent of ice slabs and similar superimposed ice facies across the entire Greenland Ice Sheet at 500 m resolution using dual-polarization Sentinel-1 (S-1) synthetic aperture radar data collected in winter 2016–2017. The S-1 inferred ice slab extent is in excellent agreement with ice-penetrating radar ice slab detections from spring 2017, as well as the extent of the visible runoff zone as mapped from optical imagery. Our results show that ice slabs are nearly continuous around the entire margin of the ice sheet, including regions in Southwest Greenland where ice slabs have not been previously identified. The algorithm developed here also lays the groundwork for long-term monitoring of ice slab expansion with current and future C-band satellite systems and highlights the added value of future L-band missions for near-surface studies in Greenland.
An intercomparison of satellite, airborne, and ground-level observations with WRF-CAMx simulations of NO2 columns over Houston, TX during the September 2021 TRACER-AQ campaign
Authors: Nawaz M. Omar , Johnson Jeremiah , Yarwood Greg , de Foy Benjamin , Judd Laura M. , Goldberg Daniel L.
Published: December 2023

Abstract. Nitrogen dioxide (NO2) is a precursor of ozone (O3) and fine particulate matter (PM2.5) – two pollutants that are above regulatory guidelines in many cities. Bringing urban areas into compliance of these regulatory standards motivates an understanding of the distribution and sources of NO2 through observations and simulations. The TRACER-AQ campaign, conducted in Houston, TX in September 2021, provided a unique opportunity to compare observed NO2 columns from ground-, airborne-, and satellite-based spectrometers. In this study, we investigate how these observational datasets compare, and simulate column NO2 using WRF-CAMx with fine resolution (444 x 444 m2) comparable to the airborne column measurements. We find that observations from the GEOCAPE Airborne Simulator (GCAS) instrument were strongly correlated (r2=0.80) to observations from Pandora spectrometers with a negligible bias (NMB=0.1 %). Remote-sensing observations from the TROPOMI instrument were generally well correlated with Pandora observations (r2=0.73) with a negative bias (NMB=-22.8 %). We intercompare different versions of TROPOMI data and find similar correlations across three versions but slightly different biases (from -22.8 % in v2.4.0 to -18.2 % in the NASA MINDS product). Compared to Pandora observations, the WRF-CAMx simulation had reduced correlation (r2=0.34) and a low bias (-25.5 %) over the entire study region. We find particularly poor agreement between simulated NO2 columns and GCAS-observed NO2 columns in downtown Houston an area of high population and roadway densities. These findings point to a potential underestimate of vehicle NOX emissions in the WRF-CAMx simulation driven by the Texas state inventory; and further investigation is recommended.
Strategi Pembelajaran dan Konsep Link & Match Terhadap Kompetensi Lulusan Mahasiswa di Perguruan Tinggi STKIP Hunimua Bula
Authors: Irfan Nugraha Ifan
Published: December 2023

Penelitian ini dilakukan di Sekolah Keguruan dan Ilmu Pendidikan Hunimua untuk mengetahui : strategi pembelajaran, konsep link and match dan kompetensi lulusan, serta mengetahui pengaruh strategi pembelajaran terhadap kompetensi lulusan, konsep link and match terhadap kompetensi lulusan dan pengaruh strategi pembelajaran. dan konsep link and match terhadap kompetensi lulusan. Metode yang digunakan dalam penelitian ini adalah jenis penelitian survei yang bersifat deskriptif dan asosiatif dengan pendekatan kuantitatif. Objek penelitiannya adalah mahasiswa Sekolah Keguruan dan Ilmu Pendidikan Hunimua sebanyak 67 responden. Untuk menguji hipotesis digunakan uji korelasi, koefisien determinasi, uji t dan uji F dengan menggunakan software SPSS for windows.

Hasil penelitian menunjukkan bahwa strategi pembelajaran sebesar 76,1% termasuk baik. Konsep link and match 67,3% cukup baik dan kompetensi lulusan 76,6% baik. Pengaruh strategi pembelajaran dan konsep link and match terhadap kompetensi lulusan Sekolah Keguruan dan Ilmu Pendidikan Hunimua sebesar 87,1%.
Pengaruh Sedimentasi Terhadap Fungsi Kapasitas Saluran Drainase di Jalan Tongkol Kelurahan Seketeng Sumbawa Besar
Authors: Dwianti Novia , Mawardin Adi , Kurniati Eti
Published: December 2023

Pertambahan penduduk selalu diikuti dengan perubahan fungsi lahan secara besar-besaran. Perubahan ini mengakibatkan permukaan tanah tidak dapat lagi menyerap air hujan secara alami, sehingga menciptakan koefisien limpasan tinggi dan memengaruhi laju erosi. Air hujan tersebut dialirkan ke drainase bersama material erosi. Proses sedimentasi yang meningkat menyebabkan pendangkalan saluran yang mengakibatkan penurunan kapasitas drainase. Tujuan penelitian ini yaitu untuk mengetahui karakteristik sedimen dengan metode analisis ukuran butir dan hasilnya diameter butiran berkisar dari 1,062 mm sampai 1,506 mm, dikategorikan sebagai pasir sangat kasar dengan berat jenis (ρs) sebesar 0,00239 kg/m3. Mengetahui Laju Angkutan Dasar dengan Metode Meyer-Petter dan Muller yaitu sekitar 1,714×103 m3/tahun. Mengetahui laju sedimen melayang dengan menggunakan Metode USBR (United States Beureu Reclamation) yaitu sebesar 0,0443 ton/tahun. Serta mengetahui persentase sedimen terhadap saluran drainase Jalan Tongkol sepanjang lokasi penelitian sebesar 74,46% dan dikategorikan rusak berat. Sesuai dengan SE Ditjen SDA Men PU No. 02/SE/M/2011 rekomendasi tindakan yang dapat dilakukan adalah rehabilitasi. Rehabilitasi saluran drainase dapat dilakukan dengan pengerukan sedimen, serta perbaikan konstruksi saluran yang rusak.
IMPACT OF MARKETING APPROACHES ON THE PERFORMANCE OF MALAGASY SMEs
Authors: Victorien ANDRIANONY , Eddy RAKOTOMALALA , Harimpitia ANDRIANARIZAKA Harenatiana , Maeva RANDRIANARIJAONA
Published: December 2023

In a global environment marked by increased competition and recurring economic crises, the opening up of borders has intensified the challenges for businesses, particularly in developing economies such as Madagascar's, where low purchasing power complicates the situation. Malagasy SMEs, which are in the majority but often vulnerable because of their size and dependence on their environment, are struggling to survive, with some even closing in their first year. This raises the central question of the impact of marketing strategies on their performance, a crucial issue given that their success is often hampered by a marketing approach that is poorly adapted to consumer needs. A study of 125 Madagascan SMEs revealed that these failures are often due to inconsistencies between marketing practices and consumer needs.
Integridad y preservación ósea del registro bioarqueológico no adulto de grupos cazadores-recolectores : un análisis de las muestras osteológicas del Holoceno tardío en la costa del golfo San Matías (Río Negro) y cuenca del lago Salitroso (Santa Cruz)
Authors: Rocío Guichón
Published: December 2023

En este trabajo de tesis se abordó el problema de la subrepresentación de individuos no adultos en contextos arqueológicos de cazadores-recolectores a partir del análisis de los modos de preservación en dos áreas de la región patagónica: la costa de golfo San Matías en Río Negro (GSM) y la cuenca del lago Salitroso en Santa Cruz (SAC). Las diferencias ambientales y arqueológicas que presentan cada una de estas áreas brindaron un excepcional escenario para abordar esta problemática. Se utilizó un diseño metodológico centrado en considerar que los cambios a nivel óseo observables durante el crecimiento y desarrollo diferencian al esqueleto adulto del subadulto. Así, la edad es considerada como un proxy que permite agrupar una serie de características ontogénicas y morfológicas de los no adultos (tamaño, forma, cantidad y densidad mineral) que influyen en los modos de representación, preservación e integridad ósea de este registro bioarqueológico. Para ello, se utilizaron distintos índices, medidas de cuantificación y se generaron valores de referencia de densidad mineral ósea (DMO) para no adultos de diferentes edades a partir del uso de tomografías computadas (TC). Los resultados obtenidos en GSM identificaron una elevada cantidad de individuos subadultos con una diversidad en las condiciones de preservación ósea y completitud anatómica. En los contextos de superficie, característicos de estos ambientes de costa, la DMO parecería ser un factor clave en la frecuencia y representación ósea de los individuos subadultos. Para SAC, los resultados pusieron en evidencia que la diversidad observada en la preservación y representación ósea no se relacionaría, en principio, con la DMO. En este caso, las prácticas mortuorias parecerían ser un aspecto fundamental para comprender los modos de preservación del registro óseo no adulto en SAC. En esta investigación se puso en evidencia que los individuos subadultos como parte del registro bioarqueológico de grupos cazadores-recolectores aportan valiosa información sobre las sociedades del pasado. En relación a esto se enfatizó que el tipo de abordaje metodológico es central para su análisis y requiere, debido a su naturaleza cambiante, de aproximaciones complementarias que consideren grados de resolución distintos a los utilizados para el registro de adultos.
EXTRACTION OF MOLYBDENUM WITH SODIUM CARBONATE SOLUTIONS FROM ORE OF YUZHNO-SHAMEISKOYE DEPOSIT
Authors: Алешин Д.С. , Крашенинин А.Г. , Танутров И.Н. , Реутов Д.С.
Published: December 2023

В статье предложен альтернативный, комплексный метод переработки сульфидного молибденового концентрата с получением молибдена и попутно рения. Технология включает в себя окислительный обжиг, без выделения сернистого ангидрида, пылеуноса и потерь ценных металлов и двухстадийное выщелачивание с селективным переводом в раствор сначала рения, затем молибдена. В качестве исходного сырья использовали молибденовый концентрат Южно-Шамейского месторождения. Концентрат смешивали с гидроксидом кальция в соотношении 1:1 по массе, затем смесь гранулировали и на поверхность наносили слой из гидроксида кальция. Окислительный обжиг проводили в трубчатой печи при Т = 600 °С и продолжительности 80 мин. Затем из огарка с помощью водного раствора извлекали рений. Далее растворами карбоната натрия из кека извлекали молибден при установленных оптимальных параметрах: Т = 95 °С, τ = 180 мин, Т:Ж = 1:6, СNa2CO3 = 200 г/дм3, n = 8,3 с–1 (500 мин–1). Установлены основные фазы в получаемом огарке и кеке. Установлены оптимальные технологические параметры для переработки молибденовых концентратов, при которых извлечение рения составило 81%, а молибдена более 98%. Предлагаемая технология применима для любых марок молибденового концентрата.

The article proposes an alternative, complex method for processing sulfide molybdenum concentrate with the production of molybdenum and rhenium along the way. The technology includes oxidative roasting, without the release of sulfur dioxide, dust entrainment and loss of valuable metals, and two-stage leaching with selective transfer of first rhenium and then molybdenum into solution. The molybdenum concentrate of the Yuzhno-Shameisky deposit was used as the feedstock. The concentrate was mixed with calcium hydroxide in a ratio of 1:1 by weight, then the mixture was granulated and a layer of calcium hydroxide was applied to the surface. Oxidative roasting was carried out in a tubular furnace at T = 600 °C and a duration of 80 minutes. Then, rhenium was extracted from the cinder using an aqueous solution. Further, molybdenum was extracted from the cake with sodium carbonate solutions at the established optimal parameters: Т = 95 °С, τ = 180 min, T:L = 1:6, СNa2CO3= 200 g/dm3, n = 8.3 s–1 (500 min–1) The main phases in the resulting cinder and cake have been established. The optimal technological parameters for the processing of molybdenum concentrates were established, at which the extraction of rhenium was 81%, and molybdenum more than 98%. The proposed technology is applicable to any grades of molybdenum concentrate.
TESTING OF THE TECHNOLOGY OF TRANSFORMER STEEL STRIPS’ HOT ROLLING WITH EDGE DROP COMPENSATION AT HOT ROLLING MILL 2000 OF «NOVOLIPETSK STEEL»
Authors: Бельский С.М. , Ковалев Д.А. , Пименов В.А. , Мазур И.П. , Шопин И.И. , Дагман М.А.
Published: December 2023

В представленной работе приведены результаты опробования в производственных условиях технологии прокатки на стане 2000 полос трансформаторной стали с компенсацией прикромочного утонения. Полученные результаты показывают принципиальную возможность компенсации прикромочного утонения горячекатаных полос трансформаторной стали для уменьшения боковой обрези готовых полос.

This paper presents the results of testing in production conditions of the technology of rolling transformer steel strips with edge drop compensation at hot rolling mill 2000 of «Novolipetsk Steel». The results obtained show the fundamental possibility of edge drop compensating of hot-rolled strips of transformer steel to reduce the side trim of the finished strips.
RATIONALE FOR CHOICE OF THE LASER MARKING MODES FOR CORROSION-RESISTANT METALS AND ALLOYS
Authors: Петкова А.П. , Ганзуленко О.Ю. , Горбатюк С.М. , Ларионова Е.В.
Published: December 2023

Статья посвящена моделированию технологического процесса маркировки на поверхности металлических изделий с помощью импульсного лазера. Описанная математическая модель позволяет подобрать оптимальные технологические параметры лазерной маркировки для формирования маркировочных символов с заданными цветовыми характеристиками на поверхности изделий из цветных металлов и сплавов различного химического состава с учетом физических свойств маркируемого материала. Разработанные технологические режимы апробированы и рекомендованы для маркировки серийных изделий из коррозионностойких сталей и цветных металлов и сплавов в различных отраслях промышленности. Использование в цветном матричном коде четырех или восьми цветов вместо только черного и белого в двумерном позволяет увеличить емкость кода до двух или трех бит информации в зависимости от количества цветовых слоев. Оперируя четырьмя или восьмью устойчивыми цветовыми оттенками, включая цвет фона, возможно формировать двух- и трехслойные цветные матричные коды на поверхности каждого из перечисленных материалов.

The article is devoted to modeling the technological process of marking on the products metal surface by means of pulsed lasers. The described mathematical model makes it possible to select the optimal technological parameters of laser marking for the marking symbols formation with specified color characteristics on the surface of products made of non-ferrous metals and alloys with various chemical compositions, taking into account the physical properties of the be-ing marked material. The developed technological regimes have been tested and recommended for marking serial products made of corrosion-resistant steels and non-ferrous metals and alloys for various industry application. The use of four or eight colors in a color matrix code instead of only black and white in a two-dimensional code allows increasing the code capacity to two or three bits of information, depending on the number of color layers. Operating with 4 or 8 stable color shades, including the background color, it is possible to form two- and three-layer color matrix codes on the surface of each of the listed materials.
SHIFT OF A SPHERICAL LAYER UNDER HIGH PRESSURE
Authors: Комаров О.Н. , Севастьянов Г.М. , Абашкин Е.Е. , Худякова В.А.
Published: December 2023

Рост промышленного производства стимулирует развитие заготовительных производств. С целью снижения материалоемкости производства, повышения экономической эффективности, снижения экологической нагрузки, повышения надежности и долговечности машин совершенствуются технологические процессы получения и обработки материалов и изделий. Задачи, стоящие перед современным машиностроением, обусловливают наличие повышенных требований к материалам и компонентам машин и механизмов. Ведется поиск новых способов обработки известных доступных материалов для улучшения комплекса их свойств с целью использования их в новых для них областях, в том числе в условиях сложного нагружения и агрессивного внешнего воздействия. В работе рассматривается новый способ интенсивного пластического деформирования металлических заготовок в виде полусферического слоя, выполненных из высокочистого алюминия. Упрочнение материалов интенсивным пластическим деформированием – это широко используемый способ улучшения механических характеристик материалов и изделий, в том числе не упрочняемых термической обработкой. Тем не менее, возможность этого метода совершенствования ограничена прочностью обрабатываемых материалов. В статье представлены результаты экспериментальных и теоретических исследований процесса упрочнения полусферических заготовок, в том числе приведена математическая модель процесса, основанная на деформационной теории пластичности.

The growth of industrial production stimulates the development of procurement industries. In order to reduce the material consumption of production, increase economic efficiency, reduce the environmental burden, increase the reliability and durability of machines, technological processes for the production and processing of materials and products are being improved. The tasks facing modern mechanical engineering determine the presence of increased requirements for materials and components of machines and mechanisms. A search is underway for new methods of processing known available materials to improve the complex of their properties in order to use them in new areas for them, including under conditions of complex loading and aggressive external influence. The paper considers a new method of intensive plastic deformation of metal blanks in the form of a hemispherical layer made of high-purity aluminum. Hardening of materials by severe plastic deformation is a widely used method for improving the mechanical characteristics of materials and products, including those not hardened by heat treatment. However, the possibility of this method of improvement is limited by the strength of the processed materials. The article presents the results of experimental and theoretical studies of the hardening process of hemispherical workpieces, including a mathematical model of the process based on the deformation theory of plasticity.
EFFECT OF LOCAL COMBINED THERMAL ACTION ON THE MAGNITUDE AND DISTRIBUTION OF RESIDUAL STRESSES IN A STEEL PLATE 20
Authors: Ткачева А.В. , Абашкин Е.Е.
Published: December 2023

В работе исследуется влияние, оказываемое со стороны комбинированного теплового воздействия от автоматической сварки проволокой с алюмотермитным наполнителем и автоматической электродуговой сварки проволокой сплошного сечения, на образование остаточных напряжений в материале пластины. Строится математическая модель на основе модели Прандтля – Рейса, в которой закон Гука заменен на закон Дюамеля–Неймана. Деформации полагаются малыми. Необратимые деформации развиваются при выполнении условия пластического течения Мизеса, в котором учитывается функция деформационного упрочнения Джонсона–Кука. Для определения параметров этой функции производится ряд экспериментов на растяжение образцов, состоящих из основного металла, материала швов, получаемых с помощью электродуговой сварки проволокой сплошного сечения, и комбинированного метода сварки проволокой с алюмотермитным наполнителем. Тепловое воздействие моделируется двойным эллипсоидом в виде кометы, предложенным Голдаком. Для комбинированного метода сварки учитывается дополнительное тепловое воздействие, происходящее от экзотермической реакции алюмотермитного наполнителя, и пониженный теплоотвод из-за образования шлаковой корки. Анализируя остаточные напряжения, можно сделать вывод о том, что использование в автоматической электродуговой сварке порошковой проволоки с алюмотермитным наполнителем понижает уровень остаточных напряжений, что положительно сказывается на дальнейшей эксплуатации сварной конструкции.

The work assumes the influence exerted by the combined thermal effect on the sensitivity of welding with wire with aluminothermic filler and the sensitivity of welding with solid wire, on the residual formation of a precipitate in the plate material. A mathematical model is built on the basis of the Prandtl-Reiss model, which in Hooke›s law is replaced by the Duhamel-Neumann law. The deformations are assumed to be small. Irreversible development of the disease under the conditions of the plastic von Mises flow, which includes the function of the strain hardening of Johnson-Cook. To determine the parameters, which are carried out by a series of experiments on biological samples consisting of solid metal, materials used using electric arc welding, solid wire and a combined welding method, the wire is worked with an aluminothermic filler. The thermal effect is modeled by the contagion of the ellipsoid in the form of a comet proposed by Goldak. For the combined welding method, an additional thermal phenomenon occurs, arising from the thermal exoroyic reaction of the aluminothermic filler and random heat removal due to the formation of a slag crust. The analysis of residual stress allows us to conclude that the use of flux-cored wire with aluminothermic filler under normal electric arc welding conditions reduces the level of residual stress, which positively affects the further operation of the welded structure.
Implementasi Sistem Manajemen Akuntansi dalam Pengambilan Keputusan
Authors: Nurmala Dewi Risa , Puspitasari Windhy
Published: December 2023

Sistem informasi manajemen merupakan hal terpenting dalam suatu perusahaan. Sistem informasi manajemen ini dapat dijadikan sebagai dasar pengambilan keputusan. Sistem informasi akuntansi dibagi menjadi dua yakni untuk pihak internal dan pihak eksternal. Pada sistem informasi akuntansi internal disebut dengan sistem manajemen akuntansi yang berisi berbagai informasi dan nantinya berperan membantu seorang manajer dalam pengambilan keputusan. Penelitian ini bertujuan untuk mengetahui implementasi sistem manajemen akuntansi dalam pengambilan keputusan. Penelitian ini menggunakan metode deskriptif untuk menganalisis, menggambarkan dan meringkas berbagai kondisi, dan situasi dari berbagai data yang dikumpulkan dari hasil pengamatan mengenai masalah yang diteliti pada saat penelitian berlangsung. Sedangkan, pendekatan yang digunakan adalah pendekatan kualitatif dengan teknik pengumpulan triangulasi (gabungan). Berdasarkan hasil penelitian menunjukkan bahwa implementasi sistem manajemen akuntansi untuk pengambilan keputusan dalam organisasi sangat penting karena sistem tersebut menyediakan informasi yang diperlukan oleh manajemen untuk perencanaan, pengendalian, evaluasi, dan pengambilan keputusan. Informasi akuntansi manajemen membantu manajemen dalam menghitung biaya, mengevaluasi kinerja, mengidentifikasi peluang perbaikan, dan memilih strategi yang paling masuk akal untuk pertumbuhan dan kelangsungan hidup perusahaan. Sistem informasi akuntansi manajemen juga membantu dalam menganalisis kondisi keuangan perusahaan, menyediakan informasi untuk keperluan pajak, dan mendukung fungsi-fungsi manajerial lainnya seperti produksi, pemasaran, manajemen sumber daya manusia, dan perencanaan strategis. Dengan adanya sistem informasi akuntansi yang baik, organisasi dapat mengevaluasi kinerja, memprediksi masa depan, dan mengambil keputusan yang tepat untuk mencapai tujuan mereka.
Simultaneous Information Releases and Capital Market Feedback: Evidence from Patent Tuesdays
Authors: Martens Tim
Published: December 2023

We examine whether the simultaneous release of information affects managers’ ability to gather decision-relevant information from market prices. Using the plausibly exogenous timing of patent grant disclosures by the United States Patent and Trademark Office as a source of variation in the simultaneous release of value-relevant information, we show that the market’s response to patent grants is more informative for managerial decisions if the firm receives fewer patent grants on the same day. This effect is more pronounced for patents that relate to relatively more exploratory innovative strategies for which feedback is arguably more important. Firms with more distinct information releases also produce more valuable and higher quality innovations in the future. Taken together, our results suggest that bundling the release of multiple pieces of information at once potentially impedes managers’ ability to benefit from the market’s feedback.

Paper via [Tresorit link](https://web.tresorit.com/l/KFY6u#WKX2_biXsWlxal2hRYD4ag).
Solution discovery in fluid dynamics using neural networks
Authors: Lai Ching-Yao
Published: December 2023

I will discuss two examples of utilizing neural networks (NN) to find solutions to partial differential equations (PDEs). The first concerns the search for self-similar blow-up solutions of the Euler equations (Wang-Lai-Gómez-Serrano-Buckmaster, Phys. Rev. Lett. 2023). The second application uses PDE-constrained NNs as an inverse method in geophysics. Whether an inviscid incompressible fluid, described by the 3-dimensional Euler equations, can develop singularities in finite time is an open question in mathematical fluid dynamics. We employ NNs to find a numerical self-similar blow-up solution for the incompressible 3-dimensional Euler equations with a cylindrical boundary. In the second part of the talk, I will discuss how PDE-constrained NNs trained with real world data from Antarctica can help discover the fluid rhoelogy that govern ice-shelf dynamics. Despite its importance in governing the flow of glaciers into the ocean, the rheology of glacial ice, a crucial material property, cannot be directly measured in the field. Several geophysical-scale phenomena could potentially cause the laboratory-derived rheology of ice to deviate from itss behavior in the field. Using NN with data measured from space, here we infer glacial rheology that differ from those commonly assumed in climate simulations. This demonstrates the need to reassess the rheology of geophysical complex fluids beyond the laboratory setting.
Exportaciones forestales enero-mayo 2023
Authors:   Instituto Forestal (Chile), Alvarez Verónica
Published: December 2023

Boletín Estadístico del segundo trimestre 2023, el cual contiene las Exportaciones Forestales Chilenas correspondientes al periodo enero-mayo 2023. Esta nueva edición trimestral, entrega información actualizada de las exportaciones de productos forestales de Chile efectuadas durante el periodo analizado, realizando comparaciones con las cifras registradas en años anteriores. Incorpora, además, un análisis sobre el comportamiento de los principales productos exportados, sus volúmenes exportados, mercados de destino, precios y empresas exportadoras.