bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGGUNAAN KOLOM CONCRETE FILLED STEEL TUBE PADA LANTAI DUA RUMAH TINGGAL
Authors: Wanda Yovita
Published: June 2024

Concrete Filled Steel Tube (CFST) adalah pipa besi yang diisi dengan beton dan merupakan salah satu material alternatif untuk struktur bangunan sederhana. Disaat penggunaan baja Wide Flange (WF) dirasa melewati anggaran yang dibatasi oleh pemilik bangunan maka penggunaan kolom CFST bisa dijadikan pilihan. Pada pembangunan sebuah rumah tinggal dua lantai di daerah Bandung, pemilik bangunan dan kontraktor memutuskan untuk menggunakan material alternatif ini untuk mengurangi biaya konstrusi yang dibutuhkan. Kolom lantai dua dari bangunan ini menggunakan CFST sedangkan lantai dasar menggunakan baja Wide Flange (WF). Penelitian ini bertujuan untuk mengamati proses dilakukannya eksperimen penerapan kolom CFST pada bangunan rumah tinggal dua lantai tersebut. Keputusan membangun menggunakan kombinasi material ini telah dilakukan setelah melalui diskusi oleh pemilik, arsitek dan kontraktor. Penerapan kolom CFST pada bangunan rumah tinggal ini dilakukan dengan material pipa besi kotak ber SNI denan ukuran 10 cm x 10 cm dengan ketinggian 3 meter. Pengisian beton di dalam besi dilakukan dengan memadatkan campuran semen K225 dengan material konstruksi terbaik yang ada di wilayah pembangunan. Modul struktur yang digunakan adalah 3 m x 3 m dengan metode konstrusi menggunakan teknik sederhana yaitu menyambung kedua material dengan plat dan sambungan pengelasan. Plat baja yang digunakan berukuran 15x30 cm juga diberi angkur berukuran sama. Pekerjaan kolom CFST ini tidak memerlukan bekisting sehingga dapat menghemat waktu dan tenaga kerja. Pada tahap finishing arsitektural pekerjaan juga menjadi lebih mudah karena dimensi kolom CFST berukuran sama dengan batu bata dinding pengisi. Hasil penelitian menunjukkan penerapan kolom CFST pada rumah tinggal ini terbukti dapat dilaksanakan lebih cepat dan murah dibandingkan penggunaan material bangunan rumah tinggal konvensional.
REDESAIN PASAR INDUK LAMBARO DI ACEH BESAR
Authors: Dhany Safandi  , Qurratul  Aini
Published: June 2024

Redesain Pasar Induk Lambaro di Aceh Besar dilatar belakangi oleh kondisi pasar yang kumuh dan tidak teratur, terbatasnya ruang untuk berjualan sehingga menimbulkan ketidaknyamanan dalam proses jual beli. Maksud dari perencanaan ini adalah menciptakan sebuah pasar yang bersih, nyaman dan aman bagi pejual dan pembeli dengan tujuan menghilangkan kesan pasar tradisional yang kumuh lewat penataan pembangunan yang lebih baik. Rumusan masalah merencanakan kembali Pasar Induk Lambaro yang sesuai dengan standar dan menerapkan tema Arsitektur Neo Vernakular. Pasar Induk Lambaro terletak di Desa Lambaro Kecamatan Ingin Jaya Kabupaten Aceh Besar. Tema Arsitektur Neo Vernakular dipilih berkeinginan untuk menciptakan bangunan yang berangkat dari adat istiadat dan budaya setempat, guna mempertahankan kebiasaan/tradisi masyarakat Aceh yang secara turun temurun dan penguatan identitas lokal. Klasifikasi perancangan tergolong kedalam jenis Pasar Induk dengan lingkup pelayanan Pasar Regional, dan kepemilikan pasar adalah Pemerintah. Analisis – analisis yang dilakukan ialah seperti analisis lingkungan, analisis fungsional dan analisis bangunan. Penerapan rancangan di angkat dari unsur budaya dengan mempertahankan gaya Arsitektural Rumoh Aceh serta mengatur pola ruang bangunan yang sesuai, guna menghindari kebiasaan masyarakat Aceh dari segi ketidak teraturannya. Pasar Induk Lambaro memiliki luas lahan ±37.353 m² (3.7 Ha). Massa bangunan merupakan massa tunggal yang teridiri dari 2 lantai, dengan luas lantai dasar 13.086 m² dan luas lantai keseluruhan 25.124 m². Fasilitas yang akan direncanakan pada Pasar Induk Lambaro yaitu Kegiatan Utama (Pasar Basah dan Kering), Kegiatan Penunjang (Kafetaria, Ruang Laktasi, Musholla, Atm Center, dan Klinik), Kegiatan Pengelola (Kantor Pengelola) dan Kegiatan Servis (Pos Keamanan, Cleaning Servis, Gudang Barang, dan Cassier Of Parking).
ANALISIS PERBANDINGAN RASIO KAPASITAS KOLOM BAJA DAN KOLOM KOMPOSIT BAJA BETON PADA STRUKTUR PORTAL
Authors: Meillyta Meillyta , Vuardi Israk
Published: June 2024

Kolom merupakan batang tekan vertikal dari rangka struktur yang memikul beban dari atas bangunan dan meneruskannya ke pondasi. Kapasitas kolom adalah parameter yang digunakan untuk mengetahui kuat tekan suatu kolom. Perkembangan yang terjadi dalam dunia konstruksi tidak menutup kemungkinan adanya perubahan pada fungsi konstruksi sehingga diperlukan peningkatan pada kapasitas kolom. Berawal dari peningkatan yang terjadi maka material pembentuk kolom pun mulai dimodifikasi, dari yang awalnya beton bertulang atau baja hingga pada saat ini sudah mulai digunakan komposit baja beton. Penelitian ini bertujuan untuk mendapatkan perbandingan rasio kapasitas dari kolom baja dan kolom komposit baja yang diselimuti beton. Adapun variabel penelitian adalah variasi ukuran berbeda antara kolom baja dan kolom komposit baja beton, tanpa adanya perubahan ukuran pada penampang baja dengan 4 kolom yang ditinjau yaitu Kolom Garuda Steel Satu (KGS1), Kolom Garuda Steel Dua (KGS2), Kolom Garuda Steel Tiga (KGS3), Kolom Garuda Steel Empat (KGS4). Pembebanan dibatasi terhadap beban mati dan beban hidup. Penelitian ini menggunakan software ETABS V17 dengan pemodelan gedung lapangan futsal berlantai 2. Pengujian awal dilakukan pada kolom baja dengan memasukkan besaran dari beban mati dan beban hidup sehingga mendapatkan hasil analisis yang aman dilanjutkan dengan pengujian kolom komposit baja beton. Hasil analisis menunjukkan peningkatan kekuatan kolom komposit KGS1 sebesar 22%, kolom KGS2 sebesar 68%, kolom komposit KGS3 dan KGS4 mengalami peningkatan kekuatan masingmasing sebesar 58% dan 56%. Dari hasil tersebut dapat disiumpulkan nilai rasio kapasitas kolom komposit baja beton lebih besar dibandingkan rasio kapasitas kolom baja.
Perencanaan Tebal Overlay dengan Alat Benkelman Beam dan Falling Weight Deflectometer
Authors: Mukhlis Amir , Agustiar Agustiar
Published: June 2024

In a certain period, the road pavement will be damaged so this pavement needs to be overlay. There is pavement damage that needs overlay activity in the highway, so the pavement is needed to maintain. This study is performed to find the overlay thick of pavement (overlay) by using Falling Weight Deflectometer (FWD) and Benkelman Beam (BB) tools. Overlay thick design is based on Design of Overlay Thick of Flexible Pavement by Deflection Method (Pd T-05-2005-B). The segment of this study is in Jalan Banda Aceh - Medan highway, the data that taken is from the same point between Falling Weight Deflectometer (FWD) and Benkelman Beam (BB). To design the thickness, this investigation needs the result deflection of Falling Weight Deflectometer (FWD) and Benkelman Beam (BB), then the value result is corrected. After the obtain corrected deflection value, the next process is calculating uniformty factor (FK), representative deflection (Dsbl ov), design deflection (Dstl ov), overlay thick (Ho), factor of overlay thickness (Fo), and corrected overlay thick (HT). The result of this study is the overlay thick from Falling Weight Deflectometer (FWD) and Benkelman Beam (BB), it is 5,235 cm for Falling Weight Deflectometer (FWD) and 3,722 cm for Benkelman Beam (BB). The result difference between Falling Weight Deflectometer (FWD) and Benkelman Beam (BB) is 1.513 cm or 28.90% in the percentage.
Analisis Peran Stakeholder Terhadap Kesuksesan Proyek Konstruksi
Authors: Zainuddin Zainuddin , Aulia Aulia
Published: June 2024

Good management of the project is a prerequisite for achieving project objectives. Every construction company must be able to demonstrate the quality of its services so that it can excel in the competition. The problem in this study is whether the role of stakeholders affects the success of a construction project and how much influence it has on the success of the project. In this study the sample taken was the Department of Housing and Settlements of Banda Aceh City and obtained 6 respondents and PT Coplanar Daya Maxima obtained 4 respondents. Respondents in the purpose of this study were to find out what roles and how much influence stakeholders have on the success of construction projects. Data collection technique is distributing questionnaires to respondents. Data processing was carried out using validity and reliability tests then data analysis using descriptive analysis and product moment correlation, as well as multiple linear regression using SPSS version 25. This study consisted of independent variables (X) consisting of owners (X1), employees (X2), suppliers (X3), consumers (X4), competitors (X5) and business licenses (X6) and the selection variable (Y). The test results for the validity of the r-table value of 0.6319 meet the requirements for r-count > r-table. The results of the reliability test show that all independent variables (X) and stakeholder determinant variables (Y) are reliable. This is because it has met the minimum coefficient of Cronbach Alpha, which is greater than 0.6. The results of descriptive analysis have the lowest mean value found in the employee variable (X2) and business license (X6) of 4.100 and the highest mean value of the supplier variable (X3) of 4.475 which shows that the average respondent's answer is important, then all variables play an important role in project success. construction. The results of multiple linear regression obtained the following equation: Y = 24.018 + 0.412X1 – 0.002X2 – 0.759X3 – 0.526X4 + 0.427X5 – 0.701X6. The analysis shows that the dominant influence of the role of stakeholders on the success of the project is in the supplier variable (X3) with a regression coefficient value of -0.759 and the level of relationship between suppliers (X3) and stakeholders. The results of the classification of the relationship level on the value of the correlation coefficient based on the interval table of the correlation coefficient value and the strength of the relationship.
Analisis Biaya Operasional Alat Berat pada Pekerjaan Timbunan
Authors: Febrianti Dian , Zakia Zakia , Mawardi Edi
Published: June 2024

Heavy equipment plays an important role in construction work, especially road construction work. The advantage of using heavy equipment is that it can get the job done faster. Improper use of heavy equipment will cause losses, so an analysis of operational costs is very necessary. Accurate and complete calculation of heavy equipment operational costs will help companies to make decisions, especially from a financial perspective. The purpose of this study was to determine the analysis of the operating costs of heavy equipment, and to know the proper and proper handling of heavy equipment. Cost analysis on heavy equipment is expected to provide benefits to be able to plan heavy equipment management in a coordinated, effective and sustainable manner. This research was conducted on the project Peningkatan Jalan Alun-Alun Suka Makmue-Jalan Lingkar Timur Ibu Kota Tahap II which is located in the district Nagan Raya. This study uses a qualitative method with a descriptive approach, namely research that seeks to describe problem solving based on data that will be obtained in the field. This research was conducted on four types of heavy equipment, namely excavators, motor graders, vibrator rollers and water tanker trucks. The results of the calculation of the operational cost analysis of excavator heavy equipment Rp. 738,617 per hour, motor grader Rp. 572,401 per hour, vibrator roller Rp. 499,735 per hour and water tanker truck Rp. 348,859 per hour. From the results obtained, it shows that for heavy equipment excavators and motor graders there has not been a return on capital, while for heavy equipment vibrator rollers and water tankers there has been a return on capital. So for heavy equipment, vibrator rollers and water tanker trucks, it is feasible to replace them with new tools
ANALISIS PERBANDINGAN TEBAL PERKERASAN LENTUR DENGAN METODE ANALISA KOMPONEN DAN METODE MANUAL DESAIN PERKERASAN 2013 (STUDI KASUS: RUAS JALAN BANDARA REMBELE KABUPATEN BENER MERIAH – BATAS KABUPATEN ACEH TENGAH
Authors: Syammaun Tamalkhani , Rachman Firmansyah , Wahyuni Tya
Published: June 2024

Perencanaan tebal suatu struktur perkerasan jalan merupakan salah satu bagian dari rekayasa jalan yang bertujuan memberikan pelayanan terhadap arus lalu lintas sehingga memberikan rasa aman dan nyaman terhadap pengguna jalan. Kesesuaian dan ketetapan dalam menentukan parameter pendukung dan metode perencanaan tebal perkerasan yang digunakan, sangat mempengaruhi efesiensi penggunaan biaya konstruksi dan pemeliharaan jalan. Pada proses perencanaan tebal lapis perkerasan jalan raya ada beberapa metode yang dapat digunakan antara lain metode AASHTO 93, metode Asphalt institute, Metode Analisa Komponen (MAK) dan Metode Manual Desain Perkerasan (MDP) 2013. Masing-masing dari metode tersebut telah diaplikasikan dalam perhitungan tebal perkerasan jalan di Indonesia. Dalam penelitian ini akan dilakukan perbandingan untuk menganalisa dua dari metode tersebut agar didapatkan perencanaan tebal perkerasan yang lebih efisien dan ekonomis dan sesuai dengan kondisi lapangan dan lingkungan. Tujuan dari penelitian ini adalah membandingkan tebal perkerasan lentur yang dihitung dengan menggunakan metode MAK dan metode MDP 2013 pada ruas jalan Bandara Rembele Kabupaten Bener Meriah. Dari hasil penelitian didapatkan tebal perkerasan masing-masing metode perhitungan yaitu tebal perkerasan dengan Metode MAK untuk lapis permukaan atas (surface) adalah 8 cm, lapis pondasi atas (base course) 40 cm, pondasi bawah (subbase course) 20 cm, dan untuk tebal timbunan pilihan sebesar 50 cm. Sedangkan tebal perkerasan dengan metode MDP 2013 untuk lapisan AC-WC adalah 4 cm, lapis AC-BC 6 cm, dan lapisan AC-Base 14,5 cm, serta untuk tebal lapisan LPA sebesar 30 cm. Hasil tebal perkerasan lentur dari kedua metode menunjukkan metode MDP 2013 lebih efisien dan ekonomis, dilihat dari segi biaya dan umur rencana yang telah diperhitungkan.
Estimulación Temprana en el Desarrollo del Lenguaje de Hijos Menores de 4 Años de Madres Privadas de Libertad
Authors: Troya Ortiz Elsa Verónica , Marín Marcano César José
Published: June 2024

El estudio establece la relación entre la estimula temprana y el desarrollo de lenguaje en menores de 4 años hijos de madres privadas de libertad, considerando la importancia de otorgar estímulos apropiados que permitan un desarrollo adecuado, más aún si estos están expuestos a experiencias adversar como es tener una madre privada de libertad. Fue una investigación correlacional, descriptiva, longitudinal, cuasi-experimental de campo, se aplicó el test de Denver II para obtener el nivel de desarrollo de 60 infantes quienes viven con sus madres en los centros de rehabilitación social para lo cual se obtuvo las autorizaciones respectivas. Los resultados obtenidos arrojaron que los niños tenían un nivel de desarrollo dudoso, anormal de lenguaje. Así, se realizó actividades de estimulación temprana por un lapso de tiempo, seguidamente se toma un post test los resultados obtenidos fueron procesados por análisis estadístico esto permitió probar que la estimulación temprana favorece el desarrollo del lenguaje. En definitiva, se evidencia que las actividades planificadas, estructuradas de estimulación temprana se relacionan con el desarrollo optimo del lenguaje. De esta forma, vemos que se abre nuevas líneas de investigación en cuanto a la estimulación temprana y el desarrollo de los niños que están expuestos a diferentes factores de riesgo.
Contaminación por TPH en las Masas de Aguas Superficiales en las Quebradas los Monos y Caigua, Municipio de Villa Montes, Bolivia
Authors: Hoyos López Marcela Elizabeth , Mamani Alemán Julio César , Leigue Fernández María Alejandra , Palacios Méndez Gina Analía , Gamarra Mendoza Mario Carmelo
Published: June 2024

La explotación petrolera en Bolivia se inició en los años 30 y ha sido una actividad económica importante para el país. En particular, la Serranía Aguaragüe, ubicada en el departamento de Tarija, ha sido uno de los principales yacimientos de petróleo y gas natural, explotados desde los años 70. Sin embargo, esta actividad ha sido objeto de controversias y conflictos debido a sus impactos ambientales y sociales. A pesar de los esfuerzos del gobierno boliviano para regular y controlar la explotación petrolera en la Serranía Aguaragüe, se han evidenciado emanaciones de hidrocarburos en las fuentes de agua de esta serranía, lo que ha generado preocupación y debate. Por ello, el objetivo de este trabajo es describir las características de concentración de TPH (Total Petroleum Hydrocarbons) en las masas de agua superficiales de las quebradas Los Monos y Caigua, ubicadas en el municipio de Villa Montes. Los análisis de agua en Caigua indican una variabilidad significativa entre los puntos de muestreo. Mientras que el punto P1 tiene una concentración baja de contaminantes (<2 ppm), el P2 muestra una contaminación considerable (>20 ppm). En Los Monos, las muestras P1 y P2 tienen concentraciones superiores a 20 ppm, mientras que la P3 está por debajo de 2 ppm. Estos resultados, del 13 de diciembre de 2021, destacan la necesidad de medidas para abordar la contaminación en ambas zonas.
The Competitiveness of Moroccan Export and its Determinants
Authors: Ben Moqadem Zouhair
Published: June 2024

This research encompasses two distinct parts. The first phase involves assessing the industries in which Moroccan exports demonstrate a comparative advantage from 2002 to 2022, utilizing the Revealed Comparative Advantage (RCA) index. To achieve this, data on Moroccan exports and world exports for different industries are collected, incorporating detailed information on product categories and trade volumes. The RCA index, as developed by Balassa (1965), has been computed using these datasets, and a comparative analysis has been performed to determine industries where Morocco enjoys a comparative advantage (Balassa, 1965). Our RCA analysis sorted out a categorization of 3 three different set of industries, distinguishing between industries with high RCA values ensuring sustained competitiveness, emerging sectoral potentials with increasing RCA values, and finally industries facing challenges with declining or fluctuating RCA values. The second part of the thesis employs a robust empirical analysis, employing panel data models and statistical tests, shedding light on the intricate dynamics shaping export competitiveness in Morocco. The amalgamation of these two components contributes to a holistic understanding of the subject, presenting policymakers and researchers with nuanced insights. In this empirical study, we investigate the determinants of export competitiveness in Moroccan industries. Employing a panel data approach, our research model encompasses key variables, including the Revealed Comparative Advantage (RCA) index as the dependent variable. Initially focusing on the Fixed Effects (FE) regression model, our analysis reveals nuanced relationships between these variables. Subsequently, we integrate insights from the Random Effects (RE) regression model, the Panel Effects (PE) regression model. Results shed light on the intricate dynamics shaping export competitiveness in Morocco. Drawing on existing literature and cross-referencing, this study contributes to the broader understanding of economic growth and trade dynamics, providing valuable insights for policymakers and researchers alike.
Classroom Management Mistakes: Observations of Mentors to Novice Teachers
Authors: A. Yaras Adelfa
Published: June 2024

This study unfolded the classroom management mistakes of novice teachers based on the observation of their mentors. The narratives were reflective of both problems and challenges of novice teachers on classroom management. There were eight (8) participants who are mentors or master teachers in Carmen District. The data gathering of information in this phenomenological inquiry had employed in-depth interview of participants through virtual conference and limited face-to-face subsequently observing strict compliance of standard health protocol. Using thematic analysis, the classroom management mistakes of novice teachers were as follows: poor communication, and inconsistent classroom rules. The findings indicated that the teacher-participants perceived hindrances as barriers that prevent them from taking the opportunity to mentor and coach novice teachers in the school. On the challenges of the mentors in helping novice teachers in their classroom management mistakes, the following were the themes and findings of the study: lack of time to mentor and lack of commitment. The findings showed that the problem of mentors in helping novice teachers correct classroom management mistakes was the lack of commitment to spend time for mentoring. From the problems and challenges of novice teachers, the following were the insights drawn from the findings of the study: strengthen teacher mentoring and conduct trainings in mentoring. From the start, this study endeavored to contribute insights on classroom management mistakes of novice teachers. The new knowledge drawn from this study was noteworthy for quality delivery of education in school.
AI-Enhanced Medicinal Plant Identification System with Multilingual Social Media Integration
Authors: Gamage K.G. Sanduni Jayamali , P.N.P. Athapaththu , Gamitha Manawadu Nandu , De Silva Hansi
Published: June 2024

Sri Lanka is a country with a Ayurvedic culture which cannot be experienced anywhere in the world. This cultural system is based on a series of knowledge passed on from generations over 3000 years that could treat a variety of diseases. This traditional ayurvedic system consist of a vast herbal plant collection. Most of the information about this ayurvedic system is written in manuscripts for thousands of years. Sri Lanka lacks a proper system which is specific to ayurvedic sector is a major concern that should be addressed at present. Absence of a system has lead to problems and difficulties in identification and classification of herbal plants, to transfer knowledge about herbal plants and to conserve these ayurvedic plants for the future generation. Another concern is that Ayurvedic undergraduate students face many difficulties when gathering knowledge of these herbal plants and medicinal practices. Sri Lanka does not comprise with a full ayurvedic plant inventory system is another major concern that identified in the country. By considering all the problems an intelligent system has been recognized as a solution. The system will be based on Deep Learning, CNN, GIS, Artificial Intelligence and Machine Learning based principals to cater all the identified problems. The system will be able to identify ayurvedic plant with an image of a leave, flower, or fruit as input. And also, system will be able to classify and provide a detailed description about the identified plant including medicinal value and the distribution of the plant in the island. System will provide a crowdsourcing social media facility with both English and Sinhala languages to share information with fellow herbalist in the country.
Cosecha asistida de café
Authors: Sanz-Uribe Juan Rodrigo , Duque-Orrego Hernando , Oliveros-Tascón Carlos Eugenio , Ramírez César Augusto , Guerrero Alvaro
Published: June 2024

Concepto de la Cosecha Asistida de Café que agrupa tres componentes: La retención de pases de cosecha, la cosecha manual de café con lonas en el suelo y la cosecha de café con una máquina portátil motorizada, denominada Derribadora Selectiva de Café. Estos componentes fueron seleccionados para brindar una contribución efectiva al problema de la cosecha de café en Colombia, de cara a una posible escasez de mano de obra.
Evaluation of haematological and biochemical stress biomarkers and physiological parameters in Carassius gibelio caught in the coastal zone of the Curonian lagoon
Authors: Žvynakytė Vita , Pažusienė Janina , Dainys Justas , Stankevičiūtė Milda
Published: June 2024

This study aimed to assess the health status of Carassius gibelio, a comparatively tolerant fish species, in the largest coastal lagoon in Europe – the Curonian Lagoon. Haematocrit and glucose levels were evaluated as reliable biomarkers of stress responses in fish. Additionally, non-specific physiological biomarkers, including hepatosomatic index and condition factor, were utilized to assess the environmental quality of the Curonian Lagoon. Fish samples were collected from two sites: the southern part of Klaipėda port, known as Kiaulės Nugara Island, and the central part of the Curonian Lagoon near Ventė Cape. Based on the multi-biomarker responses of C. gibelio, differences were observed between the two sampling sites, but not statistically significant. Consequently, C. gibelio cannot be recommended as a suitable bioindicator of environmental pollution and is not recommended for biomonitoring surveys of the Curonian Lagoon.
Aglomeravimo procesais paremtų dujų srauto valymo technologijų taikymas ir palyginimas
Authors: Zdanevičius Stanislovas , Chlebnikovas Aleksandras
Published: June 2024

Aplinkos oro kokybė yra laikoma vienu iš tvarios gyvensenos rodiklių. Kietosioms dalelėms šalinti plačiai taikomos tradicinės valymo technologijos, pagrįstos gravitaciniu, išcentriniu, elektrostatiniu ir kitais veikimo principais. Šios technologijos nėra efektyvios šalinant žmogui žalingas, ultrasmulkias, iki 1 μm, kietąsias daleles iš dujų srauto. Tokio tipo kenksmingus žmogui ir aplinkai smulkiųjų dalelių teršalus galima paveikti akustine ar elektros lauko aglomeracija. Vykstant aglomeracijai smulkios dalelės susijungia į didesnę, vientisą dalelę, kurią galima efektyviai nusodinti ir (arba) pašalinti iš dujų srauto tradicinėmis valymo technologijomis. Įvairiose pramonės šakose taikoma aglomeracija gali paversti dulkių frakcijas arba sunkiai apdorojamas medžiagas lengviau valdoma forma. Darbe analizuojamos aktualios, kenksmingiausios žmogui kietosios dalelės, kurių dydis yra nuo 2 μm iki 10 μm, taip pat įvairių aglomeracijos tipų taikymo būdai, kuriais apdorojamas pirminis dujų srautas prieš valymą paveikiant dujų sraute esančias smulkiąsias daleles. Remiantis pasauline literatūra buvo aptartos įvairių tipų aglomeracijos technologijos.
Low-mass Galaxy Interactions Trigger Black Hole Activity
Authors: Mićić Marko , Irwin Jimmy A. , Nair Preethi , Wells Brenna N. , Holmes Olivia J. , Eames Jackson T.
Published: June 2024

The existence of high-z overmassive supermassive black holes represents a major conundrum in our understanding of black hole evolution. In this Letter, we probe from the observational point of view how early Universe environmental conditions could have acted as an evolutionary mechanism for the accelerated growth of the first black holes. Under the assumption that the early Universe is dominated by dwarf galaxies, we investigate the hypothesis that dwarf–dwarf galaxy interactions trigger black hole accretion. We present the discovery of 82 dwarf–dwarf galaxy pairs and 11 dwarf galaxy groups using the Hubble Space Telescope, doubling existing samples. The dwarf systems span a redshift range of 0.13 < z < 1.5, and a stellar mass range of 7.24 < log(M
*/M
⊙) < 9.73. We performed an X-ray study of a subset of these dwarf systems with Chandra and detected six new active galactic nuclei (AGN), increasing the number of known dwarf–dwarf-merger-related AGN from one to seven. We then compared the frequency of these AGN in grouped/paired dwarfs to that of isolated dwarfs and found a statistically significant enhancement (4σ–6σ) in the interacting sample. This study, the first of its kind at the lowest mass scales, implies that the presence of a nearby dwarf neighbor is efficient in triggering black hole accretion. These results open new avenues for indirect studies of the emergence of the first supermassive black holes.
Petrocodon liboensis (Gesneriaceae), a new species from Guizhou, China
Authors: Tang Sheng-Hu , Ou Ming-Zhu , Ren Qi-Fei , Yang Jia-Wen
Published: June 2024

Petrocodon liboensis Sheng H.Tang & Jia W.Yang is a new species of Gesneriaceae from Guizhou, southwestern China. The new taxon has a pale-yellow corolla and is most similar to P. luteoflorus. However, it differs from the latter by having a urceolate (vs. cannulate) corolla tube, an abaxial corolla lip 0.8–1.1 mm (vs. 2–2.2 mm) long, and filaments 1.5–1.7 mm (vs. ca. 7 mm) long that are straight (vs. S-shaped or geniculate near the middle). The new taxon is assessed as “Data Deficient” (DD) according to the IUCN standards.
Saisir les tensions et paradoxes des pratiques d’innovation sociale
Authors: Duvivier Julien , Léon Xavier
Published: June 2024

Julien Duvivier , Xavier Léon , Saisir les tensions et paradoxes des pratiques d’innovation sociale L’article propose une analyse des logiques sociopsychiques à l’œuvre dans les organisations de l’économie sociale et solidaire ( ess ). Par le récit d’une intervention essentiellement centrée sur l’accompagnement d’un « changement d’échelle » au sein d’une entreprise s’inscrivant dans une logique d’innovation sociale, il met en exergue l’impérieuse et délicate nécessité pour l’intervenant clinicien de faire émerger la demande psychosociale dans un contexte organisationnel irrigué par des logiques gestionnaires. Par un dispositif socioclinique, nous proposons ici de considérer l’intervention comme une possible réactivation d’un imaginaire moteur qui permet une prise de recul dans le rapport à l’idéal au sein d’un espace transitionnel contenant.
Pratique de l’intervention en institution et topologie lacanienne
Authors: Wilhelm Agnès
Published: June 2024

Agnès Wilhelm , Pratique de l’intervention en institution et topologie lacanienne Nos dispositifs d’intervention, issus d’un courant inspiré de la psychothérapie institutionnelle, se fondent sur des groupes et la parole subjective. Comment nos dispositifs peuvent-ils s’inscrire, s’articuler au mode organisationnel devenu prévalent, qui promeut les protocoles préconçus et restreint les temps d’élaboration groupale ? Dans ce contexte de changement de fond, de délitement des équipes et de leur tâche analysante, ne devons-nous pas repenser notre mode d’intervention ? Est-il toujours pertinent de maintenir nos distinctions entre Analyse des pratiques cliniques ( app ) et Analyse institutionnelle (ou Régulation) ? La bipartition des modes d’intervention et la franche ligne de démarcation, qui nous a été transmise comme un principe fondamental, est-elle toujours adaptée aux situations institutionnelles que nous rencontrons ? La topologie, utilisée par Lacan pour saisir la complexité psychique, nous permet de concevoir nos dispositifs d’une façon nouvelle.
Effets sur les dispositifs d’analyse de la pratique… de quelques nouvelles réglementations et procédures
Authors: Auzas Patricia
Published: June 2024

Patricia Auzas , Effets sur les dispositifs d’analyse de la pratique de quelques nouvelles réglementations et procédures Par la mise en regard de deux dispositifs d’analyse de la pratique, l’article aborde les effets sur les conditions d’intervention de diverses modalités de traduction des récentes réglementations. Outre l’envahissement de l’activité des intervenants par de nouvelles procédures d’évaluation, les analyses de la pratique sont traversées par des enjeux d’attestation de leur conformité et de leur qualité à des standards, enjeux auxquels les institutions prestataires de ces dispositifs collent strictement ou non, ce qui modifie l’étayage du dispositif et de l’intervenant.
L’influence de l’attachement et de l’identification des membres de la famille à l’entreprise familiale sur les intentions de continuité. Une comparaison entre le Maroc et la France
Authors: Basly Sami , Larioui Lamia
Published: June 2024

La continuité de l’entreprise est l’une des questions des plus importantes auxquelles sont confrontées les entreprises familiales. Bien que ce thème ait fait l’objet de nombreuses recherches, l’influence du contexte culturel sur les intentions de continuité des entreprises familiales reste peu étudiée. La recherche proposée vise à une compréhension nuancée du rôle de l’attachement émotionnel et de l’identification des membres de la famille à l’entreprise dans les contextes culturels contrastés du Maroc et de la France. Grâce à un modèle d’équations structurelles modérées basées sur des données d’enquêtes menées dans les deux pays, notre étude confirme que l’attachement et l’identification influencent positivement les intentions de continuité de l’entreprise familiale en France et au Maroc. Cependant, le modèle incorporant un effet modérateur révèle des divergences entre le Maroc et la France concernant l’influence de l’attachement émotionnel sur la continuité de l’entreprise.
L’Orphelinat des armées au cœur des controverses : l’implosion de l’union sacrée autour des orphelins
Authors: Fabre Mélanie
Published: June 2024

Cet article analyse les controverses entourant l’Orphelinat des armées, œuvre d’assistance aux orphelins pendant la Grande Guerre. Fondée à l’initiative de Dick May, une intellectuelle proche des socialistes, elle s’adresse à tous les enfants victimes de la guerre, quels que soient leur confession et leur ancrage géographique. Œuvre d’assistance, elle poursuit également un modèle éducatif ambitieux. De portée nationale, elle est patronnée par les présidents de la République, de la Chambre des députés, du Sénat, et par tous les ministres du gouvernement Viviani. L’Orphelinat des armées désire ainsi incarner l’Union sacrée autour des orphelins. Pourtant, lorsque se prépare en 1915 une journée nationale de quête en sa faveur, Maurice Barrès attaque l’œuvre, catalysant ainsi une campagne de presse qui rejoue la « Guerre des deux France ».
L’émotion transmise par les voix parlée et chantée : l’exemple de l’interjection (France, XVIII e siècle)
Authors: Schweitzer Claudia
Published: June 2024

L’article s’intéresse à la transformation de l’expression émotionnelle spontanée qui se manifeste avec les interjections dans la voix parlée, en expression artistique volontaire, fondée sur les observations du comportement naturel et involontaire des locuteurs. Après une introduction dans les théories du xviii e  siècle à ce sujet, nous opposerons les caractéristiques indiquées par les grammairiens et rhétoriciens pour les interjections liées à une certaine émotion et les explications dans les traités s’adressant aux artistes. Un corpus de compositions vocales françaises toujours de la même époque nous aide à comprendre que le traitement des interjections dans les compositions correspond aux observations pour les voix parlée et déclamée et qu’elle peut permettre aux chanteurs de profiter pleinement de la base musicale pour l’expression personnelle de l’émotion demandée.
Jean Bellemin-Noël : la théorie à l’écoute de la littérature
Authors: Trouvé Alain
Published: June 2024

Ce texte reprend l’ensemble du parcours théorique de Jean Bellemin-Noël – depuis la génétique jusqu’à la psychanalyse – en rappelant les grandes notions qu’il a créées (inconscient du texte, travail inconscient du texte, auto-transfert, interlecture…) et indique comment, si certaines de ses propositions semblent porter la marque de leur temps, une lecture plus attentive montre qu’il répond d’avance pour une part aux objections.
Athalie avait-elle un inconscient ?
Authors: Bayard Pierre
Published: June 2024

La lecture par Jean Bellemin-Noël d’ Athalie de Racine, loin d’être anachronique comme pourrait le laisser penser l’histoire des sensibilités, témoigne au contraire de la présence chez l’être humain, au-delà des superstructures psychiques évolutives, d’invariants pulsionnels, lesquels tendent à valider la thèse freudienne de l’existence chez l’être humain d’un substrat psychologique indépendant de l’Histoire.
La jalousie au prisme de la littérature
Authors: Delacomptée Jean-Michel
Published: June 2024

Pour étudier les affects, la littérature offre un prisme susceptible d’être renforcé par l’apport de la psychanalyse, même quand cet apport reste modeste. Ainsi en va-t-il de la jalousie amoureuse, centrale dans La Princesse de Clève s ou dans A la recherche du temps perdu . Cependant, les lectures fondées sur les réactions individuelles des personnages peuvent laisser place à des approches de nature socioculturelle, par exemple, chez Diderot, la vengeance de Mme de la Pommeraie fomentée par jalousie. La convergence des deux approches, de nature psychologique ou psychanalytique d’une part, historique ou socioculturelle d’autre part, ouvre à l’analyse « psycho-politique » de textes de fiction.
La psychologie clinique au défi des symptômes contemporains
Authors: Pirlot Gérard
Published: June 2024

L’objet de ce texte est de montrer comment travaille le psychanalyste avec des patients présentant un déficit en représentations aussi bien d’affects que du préconscient. C’est la pensée, en tant qu’investissement de la relation entre deux représentations et/ ou représentations et affects qui se trouve, via la relation de transfert, un contenant indissociable d’un cadre, un dispositif, dont un exemple clinique soulignera la dynamique.
Les espaces délaissés comme jachères urbaines, préfiguration d’un nouveau modèle urbain
Authors: Leray Alexis , Plottu Béatrice , Plottu Éric
Published: June 2024

Si, de nos jours, les espaces délaissés urbains sont perçus négativement par l’imaginaire collectif en France, il n’en a pas toujours été ainsi. Nous proposons, au croisement de l’économie et de l’aménagement urbain, une relecture du concept des trois âges de l’urbanisme d’Albert Lévy (1998) sur les mutations de la ville française. L’objectif de l’article est de montrer, qu’à partir des années 1990-2000, l’évolution des perceptions et la réappropriation des espaces délaissés urbains par des réseaux d’acteurs informels reposent sur de nouvelles valeurs, marqueurs d’un nouveau modèle socio-économique émergeant en rupture avec celui du modèle productiviste en crise des années 1970. Nous montrons que ces valeurs préfigurent un nouveau modèle urbain où les espaces délaissés retrouvent un statut comme jachères urbaines dans les stratégies des villes, notion que nous conceptualisons comme potentiels d’expérimentation et d’adaptation d’un modèle urbain résilient.
The asymptotic spreading speeds of COVID-19 with the effect of delay and quarantine
Authors: Alanazi Khalaf M.
Published: June 2024

Coronavirus spread in Wuhan, China, in December 2019. A few weeks later, the virus was present in over 100 countries around the globe. Governments have adopted extreme measures to contain the spreading virus. Quarantine is considered the most effective way to control the spreading speed of COVID-19. In this study, a mathematical model is developed to explore the influence of quarantine and the latent period on the spatial spread of COVID-19. We use the mathematical model with quarantine, and delay to predict the spreading speed of the virus. In particular, we transform the model to a single integral equation and then apply the Laplace transform to find implicit equations for the spreading speeds. The basic reproduction number of COVID-19 is also found and calculated. Numerical simulations are performed to confirm our theoretical results. To validate the proposed model, we compare our outcomes with the actual reported data published by the National Health Commission of China and the Health Commission of local governments. The model demonstrates good qualitative agreement with the actual data reported. The results show that delay and quarantine highly influence the spreading speeds of COVID-19. Also, we can only contain the disease if we quarantine $ 75 \% $ of the infected people.
Las etimologías árabes en el DRAE 1884
Authors: Clavería Nadal Gloria , Giménez-Eguíbar Patricia
Published: June 2024

Reflejando el nuevo enfoque historicista de la lingüística, la duodécima edición del DRAE ve la luz en 1884 con la inclusión de la etimología en un buen número de lemas del diccionario. El análisis detallado de una muestra de entradas portadoras de etimología árabe en el DRAE 1884 permite reconstruir la metodología empleada en esta tarea, identificar las posibles fuentes que se usaron y demuestra que la información etimológica refleja en la mayoría de ocasiones los principales avances de los estudios árabes en las últimas décadas del siglo XIX.
POGIL Learning Model—Metaphorming for Mobile-Based Cryptography Creation
Authors: Auliana Nasution  , Ambiyar  , Refdinal  , Muhammad Arpan  , Elia Putri
Published: June 2024

The cryptography course has a mathematical basis and involves programming algorithms in the creation process while the implementation utilizes a programming language. Cryptography has been widely implemented in everyday life. However, the interest and learning outcomes of students in cryptography courses have not met expectations. Processoriented guided inquiry learning (POGIL) models integrated with metaphor. The POGIL metaphorming model is a student-centered learning model directed at active and creative thinking processes. One of the important processes in this stage is to develop a preliminary form of the product, conduct preliminary field testing, make the main product revision, conduct the main field testing, and perform operational product revisions. Based on the findings from the initial stage, an integrated learning model was developed for the cryptography course. Data for the model validation stage included model books, textbooks, lecturer’s guides, and student guides, calculated using content and construct validation techniques. Analysis of validity test data involves calculating the average score of all validator answers using Aiken’s coefficient v. The study results indicated that the model learning POGIL metaphorming is validly designed to enhance student learning processes and outcomes in cryptography courses.
La France des casinos : la résistance de l’État croupier ?
Authors: Lebeau Boris , Redon Marie
Published: June 2024

Le texte s’inscrit dans l’étude d’un phénomène massif : le spectaculaire essor des pratiques de jeu d’argent dans le monde. Partant du constat de l’évolution quantitative du nombre de casinos en France, deuxième pays au monde en nombre d’établissements, mais aussi de l’intensification des mises et de l’augmentation des recettes des lieux de jeu, l’article propose d’analyser l’évolution de leur localisation sur le territoire français. Historiquement associés aux stations balnéaires et thermales, depuis 1988, des établissements ouvrent dans les agglomérations de plus de 500 000 habitants. En parallèle, de nouveaux casinos continuent d’ouvrir dans les communes rurales de petite taille. A partir d’une base de données constituée par les auteurs, les logiques d’implantation des casinos, à la fois héritées et en cours d’affirmation, sont explicitées sur le territoire, espaces ultramarins compris. La seconde partie de l’article interroge les spécificités des casinos à la française, entre forte régulation publique et outils d’aménagement du territoire à l’échelle communale. Aborder les logiques d’implantation permet de montrer une mutation de la manière dont les jeux d’argent sont de plus en plus mis en avant : ils sont présentés comme une activité de loisirs parmi d’autres, marquée par une nouvelle concurrence entre jeux en ligne et jeux « en dur ».
Batia Baum, la traduction en partage
Authors: Tauber Michèle
Published: June 2024

Batia Baum (1941-2023) est l’une des plus grandes traductrices de littérature yiddish en français. L’article propose un cheminement à travers sa réappropriation de la langue yiddish à l’âge adulte, l’engagement dans la traduction et les difficultés pour y parvenir et la présentation de quelques-uns des auteurs qui ont particulièrement marqué Batia. Il va sans dire que cet article est très loin d’être exhaustif et ne représente qu’une infime partie de l’œuvre de traductrice de Batia Baum.
Pensare la sovranità alimentare nell’Europa d’Oltremare: Aruba, Saint-Pierre e Miquelon, Belep (Nuova Caledonia)
Authors: Giordana Lara
Published: June 2024

L’“arcipelago” dell’Europa d’Oltremare si estende su tre oceani, conta circa sei milioni di abitanti ed è costituito da isole caratterizzate da una grande varietà di territori, società e culture, di lingue ed ecosistemi, di climi e statuti. Questo contributo mira a indagare come alcune piccole isole che sono o fanno parte di Paesi e Territori d’Oltremare dell’Unione europea (PTOM), politicamente non indipendenti ma dotati di peculiari forme di autonomia, formulino la sovranità e la giustizia alimentari, restituendone un’immagine complessa e plurale. Verranno esplorate le modalità con cui tre società diverse e distanti dell’arcipelago Europa navigano tra gli intrecci di colonialismo e autonomia, diritti di accesso alla terra e al mare, insularità e isolamento, mobilità e relazioni regionali, per tracciare le proprie forme di sovranità alimentare: Aruba (NL), Saint-Pierre e Miquelon (FR) e le isole Belep (Kanaky Nuova Caledonia - FR).
Pomodori e pesticidi. (In)giustizia alimentare, sanitaria e ambientale nelle Regioni ultraperiferiche: il caso di Mayotte
Authors: Schierano Paola
Published: June 2024

Con questo saggio si intende offrire un contributo al dibattito sulla sostenibilità e sulla sicurezza alimentare e ambientale nelle realtà ultraperiferiche europee, illustrando le connessioni non sempre evidenti tra dipartimentalizzazione, disuguaglianze socioeconomiche e insicurezza alimentare e ambientale. Nota storicamente come il “giardino” delle Comore, Mayotte è l’unica isola dell’arcipelago ad aver rifiutato l’indipendenza, preferendo a essa una piena – seppur turbolenta – integrazione alla Francia. I piani di allineamento economici e strutturali, conseguenti il processo di integrazione istituzionale, hanno contribuito a rendere l’isola una meta privilegiata dai migranti della zona, proprio in virtù della sua relativa prosperità. Tra le attività informali che i migranti – essenzialmente di origine comoriana e malgascia – svolgono per sopravvivere a Mayotte, spiccano la coltivazione e la vendita in strada di verdure, in particolare di pomodori. Da un’indagine promossa nel 2017 dalla Direction de l’Alimentation, de l’Agriculture et de la Forêt (DAAF), è emerso però che la stragrande maggioranza dei pomodori venduti dagli ambulanti dell’isola presentava tassi elevatissimi di dimetoato, un potente insetticida, proibito in Europa nel 2016 a causa della sua acuta neurotossicità. A partire dal caso dei “pomodori proibiti” a Mayotte, l’analisi introdurrà alla questione della dipendenza dalle importazioni per sviluppare una riflessione sulle conseguenze dell’assimilazione dipartimentale e comunitaria sul piano alimentare, ambientale e sociale, nel tentativo di tracciare un nesso tra le disuguaglianze socioeconomiche – causate e amplificate dalla dipartimentalizzazione – e l’insicurezza alimentare e ambientale che ne deriva.
ONDAS ESTACIONÁRIAS E HARMÔNICOS EM CORDAS VIBRANTES
Authors: Guizzo Marcos Antonio , Hoffmann Volnir
Published: June 2024

Neste trabalho, realizado dentro do escopo teórico das metodologias ativas, propostas no âmbito do Programa de Pós-Graduação em Ensino de Física em Rede Nacional da UTFPR campus Medianeira, esboçamos uma reflexão comparativa sobre o uso da metodologia denominada sala de aula invertida (flipped classroom), aliada ao método PIE (predizer, interagir e explicar) aplicados ao ensino de dois temas de ondulatória: ondas estacionárias e a respectiva formação de harmônicos em cordas vibrantes. Esta atividade, contemplando diferentes situações didáticas, inclusive com a utilização de simuladores mecânicos, foi ministrada em duas turmas de ensino médio, envolvendo 54 alunos oriundos de contextos bastante díspares entre si. Os resultados obtidos indicam que a adoção conjunta de tais métodos, favorece à elevação da motivação dos alunos e fornece melhores condições para uma aprendizagem significativa.