bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluating the Impact of Material Selections, Mixing Techniques, and On-site Practices on Performance of Concrete Mixtures
Authors: Hattani Fadoua , Menu Bruce , Allaoui Driss , Mouflih Mustapha , Zanzoun Hassan , Hannache Hassan , Manoun Bouchaib 
Published: March 2024

This paper aims to evaluate the influence of sand quality, water-to-cement ratio, binder properties, mix design methods, and mixing techniques on the fresh and hardened properties of concrete. The physicochemical characteristics of coarse aggregates, sands, and binders were analyzed. The experimental results show that the binders and coarse aggregates met standard specifications. However, none of the sands meet construction standards. Corrections were necessary for the dune sands to meet construction standards in terms of grain size distribution and fineness modulus. The results also show that the concretes formulated using the Dreux-Gorisse method exhibited higher quality than the locally formulated concretes. Furthermore, it was found that hand mixing resulted in inadequate mixing, material wastage, lower strength, and increased porosity, whereas machine mixing produced concretes with a more homogeneous microstructure, uniform particle distribution, lower porosity, and higher strength. The batch variability and compressive strength of the hand-mixed concretes were also found to be influenced by the expertise level of the batch mixer and the number of successive hand batches. It was also found that both the soluble silica and the inert methods are reliable for determining binder content in machine-mixed concrete. However, the soluble silica method occasionally exhibited significant variations in hand-mixed concrete compared to the inert method. A combined approach utilizing the average of both methods enhances the overall reliability of the binder content values. Observations on construction sites revealed widespread deviations from recommended guidelines. Issues such as lack of material inspection, proper stockpiling, ingredient contamination, and inadequate batch mixing contributed to variations in concrete workability, porosity, and compressive strength. Doi: 10.28991/CEJ-2024-010-02-016 Full Text: PDF
Seismic Performance of Infilled Reinforced Concrete Frame with Crumb Rubber Mortar Wall Panel
Authors: Chayaboot Kritsada , Boonpichetvong Maetee , Pannachet Tanyada , Sata Vanchai , Chintanapakdee Chatpan 
Published: March 2024

In this paper, the seismic performance of reinforced concrete (RC) frames with crumb rubber mortar wall panels is reported. The tests of the crumb rubber mortar were conducted to obtain model parameters for equivalent diagonal compression struts. With a higher percentage of sand replacement by crumb rubber, the unit weight, the compressive strength, the tensile strength, and the modulus of elasticity of the crumb rubber cement mortar are decreased. Nonlinear pushover analysis of a simple frame shows that the RC frame with a wall panel with less crumb rubber demonstrates lower lateral deformation ability. The failure modes are affected by the amount of crumb rubber and are dependent on the modeling choice of the equivalent compression strut as the wall panel representative. Finally, the seismic performance of the RC building was studied by the equivalent static approach to explore the influence of the crumb rubber mortar wall panels on internal forces and deformations of the frame. With a higher percentage of crumb rubber, the weight of the infill wall panels and the overall weight of the building are reduced, which meets lower seismic base shear demand. This benefit is, however, traded off with higher lateral deformation and also higher inter-story drift of the studied building frames. Doi: 10.28991/CEJ-2024-010-02-09 Full Text: PDF
Eles não são números: o discurso jornalístico e a construção do memorial Inumeráveis
Authors: Pimentel Mercia , Da Silva Ávila Janayna , Arantes Azevedo Júlio , Marinho da Pureza Ramires Lídia Maria 
Published: March 2024

Este artigo apresenta uma análise de textos do projeto memorial Inumeráveis, que homenageia vítimas fatais da pandemia da Covid-19 no Brasil. Para isso, recorre à Análise do Discurso, observando dois movimentos de sentidos principais na construção dos obituários: os de negação e de negativização da morte. A discussão proposta inicia pelas condições de produção do discurso, entendidas aqui como a articulação entre o sócio-histórico, próprio do momento atual, e a produção dos textos do projeto, classificados como parte do gênero jornalístico obituário. A análise identifica a predominância de um discurso próprio da formação discursiva religiosa cristã, trabalhando metaforicamente a valorização da vida e a promessa de existência após a morte. Essa superfície encobre a lógica da necropolítica e o discurso de negação da morte, atravessado por elementos de uma formação ideológica de mercado, cuja noção de falecimento é entendida como o fracasso final dos sujeitos.
Palavras-chave: Inumeráveis. Subjetividade. Discurso
La ceguera idealista de Frege: un examen de la filosofía del lenguaje a partir de Las verdades evidentes de Michel Pêcheux
Authors: Oliva Andrés 
Published: March 2024

El objetivo del presente trabajo es explorar el trasfondo filosófico del concepto pecheutiano de sentido y formación discursiva a partir del libro Las verdades evidentes (LVE). Esta obra representa un momento intermedio en la obra de Pecheux, en el que los lineamientos principales del análisis del discurso automático propuesto unos años antes son sometidos a revisión. Nuestro interés radica en que en esta obra Pecheux ofrece un punto de vista panorámico sobre las filosofías del lenguaje clásicas, como las de Port Royal, Frege y Husserl, lo cual permite ubicar ambos conceptos en el campo filosófico antes que en el lingüístico; un panorama que en trabajos anteriores, como en Hacia el análisis el discurso automático, se restringía a teorías linguísticas. Nos centraremos en la lectura pecheutiana de la filosofía del lenguaje de Frege, correspondiente a la segunda parte de LVE (“De la filosofía del lenguaje a la teoría del discurso”), para precisar lo que Pecheux llama “el punto ciego de Frege”, que ilustra muy bien la crítica general pecheutiana al idealismo de las filosofías del lenguaje.
Palabras clave: Análisis automático del discurso. Materialismo. Contextos opacos. Formación discursiva e ideológica. Interdiscurso
Processos de interdição e censura: Povos que não podem ser de dentro
Authors: Falconi Thomas , Neckel Nádia , Benedetto Flores Giovanna 
Published: March 2024

A partir de um gesto de análise do apagamento da obra Povo de Dentro, do artista Douglas Leoni, das paredes da Fundação Cultural de Brusque em setembro de 2021, o objetivo deste ensaio é compreender como se dão os processos de interdição e censura das artes no avanço das práticas neoliberais que vão desenhando estados totalitários e excludentes que negam a arte, a educação a cultura e a ciência. Estados que criminalizam os ativismos e as artes que expõem as lutas de classe e denunciam a violência do estado burguês. Desta forma, interessa os modos como os sentidos de “pichação” deslizam na imprensa, através da tensão entre o político e a ordem policial. Para isso, foram mobilizadas as noções de de arte inespecífica, de partilha do sensível, de discurso político na tensão com o chamado discurso de ódio, tomando como ancoragem a Análise de Discurso franco-brasileira.
DINAMIKA KUALITAS AIR HARIAN PADA KOLAM IKAN NILA (Oreochromis niloticus) DI BALAI BENIH IKAN LOKAL (BBIL) KOYA BARAT DISTRIK MUARA TAMI KOTA JAYAPURA
Authors: Mantayborbir Vyona , Indrayani Ervina , Bukit Elysabeth Anggreini Br. 
Published: March 2024

Penelitian ini bertujuan untuk mengetahui dinamika harian kualitas air kolam budidaya ikan nila pada Balai Benih Ikan Lokal (BBIL) Koya Barat Distrik Muara Tami Kota Jayapura. Penelitian ini menggunakan dua kolam tanah dengan ukuran 25 x 50 m, dan kedalaman air setinggi 30-50 cm, volume air 100 L pada satu kolam. Ikan Nila (Oreochromis niloticus) dengan rata-rata panjang 20 cm dan berat 243 gr digunakan pada penelitian ini. Pakan dengan takaran 3 % dari biomassa ikan diberikan tiga kali sehari. Parameter kualitas air yang diamati pada penelitian ini adalah suhu air diukur dengan menggunakan termometer digital, dissolved oxygen menggunakan DO meter DO 30N, keasaman air menggunakan pH meter, pH-240L, SERA aqua-test kit digunakan untuk megukur amonia dan nitrat. Penelitian ini menunjukan bahwa parameter kualitas air yang di amati normal sesuai dengan kebutuhan ikan nila. Sehingga dapat disimpulkan bahwa kualitas air pada kolam pemeliharaan ikan nila di Balai Benih Ikan Lokal (BBIL) Koya Barat Distrik Muara Tami Kota Jayapura terkontrol dan layak bagi pertumbuhan dan kelangsungan hidup ikan nila (Oreochromis niloticus) yang dibudidayakan.

Kata kunci : Amonia, DO, Ikan nila, Nitrat, pH, Suhu.
Synthesis of Functionalized Flexible and Rigid Polyurethane for Oil Spill Treatment
Authors: Al-Lami Hadi S. , Al-Khalaf Abdullah A. , Abbas Abbas F. 
Published: March 2024

Abstract. To improve the oleophilic and hydrophobic properties of two different types of polyurethane sponge (flexible, FPU, and rigid, RPU) for oil spill cleanup, acrylamido phenyl chalcone palamitamid, a recently synthesized monomer with long chains of linear alkyl groups, was in situ crosslinked with divinylbenzene. Grafted PU cubes were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The water sorption of ungrafted FPU and RPU decreased from 18.05 and 15.66 to 7.31 and 7.06 for grafted FPU and RPU, respectively. The effect of oil type on the sorption capacity testing was explored and compared using crude oil, diesel fuel, and water-oil systems. It was found that the crude oil and diesel fuel sorption of grafted FPU and RPU cubes was increased compared with ungrafted FPU and RPU cubes, and the maximum values for adsorption were recorded using crude oil. These results can be explained by increasing the adherent forces between the adsorbent and the oil surface with increasing oil viscosity, and consequently, the oil adsorption increases. The high oil absorption capacity is mainly attributed to the high porosity of the sponges. The modified FPU and RPU cubes can be effectively used in oil and water spill cleanup.

Resumen. Para mejorar las propiedades oleófilica e hidrofóbica de dos tipos diferentes de esponjas de poliuretano (flexible, FPU y rígida, RPU) para la limpieza de derrames de petróleo, se llevó a cabo una reacción de entrecruzamiento in situ con divinilbenceno a partir de acrilamido fenil chalcona palamitamida, un monómero recientemente sintetizado y que contiene cadenas largas de grupos alquilo lineales. Los cubos de PU injertados se caracterizaron mediante espectroscopía infrarroja por transformada de Fourier (FTIR) y microscopía electrónica de barrido (SEM). La sorción de agua de FPU y RPU no injertadas disminuyó desde 18,05 y 15,66 hasta 7,31 y 7,06 para FPU y RPU injertados, respectivamente. Se exploró y comparó el efecto del tipo de petróleo en las pruebas de capacidad de sorción, utilizando petróleo crudo, combustible diesel y mezcla agua-petróleo. Se encontró que la sorción de petróleo crudo y combustible diesel de los cubos de FPU y RPU injertados aumentó en comparación con los cubos de FPU y RPU no injertados, obteniéndose los valores máximos de adsorción para el caso de petróleo crudo. Estos resultados pueden explicarse en base al aumento de las fuerzas de adherencia entre el adsorbente y la superficie del aceite al aumentar la viscosidad del aceite, y como consecuencia la adsorción del aceite aumenta. La alta capacidad de absorción de aceite se atribuye principalmente a la alta porosidad de las esponjas. Los cubos FPU y RPU modificados se pueden utilizar eficazmente en la limpieza de derrames de petróleo y agua.
MENINGKATKAN PEMAHAMAN KONSEP PERSAMAAN KUADRAT MELALUI MODEL PEMBELAJARAN THINK PAIR SHARE (TPS) UNTUK SISWA KELAS X
Authors: Wulandari Bella , Ratumanan Tanwey Gerson , Ngilawajan Darma Andreas 
Published: March 2024

Abstract
IMPROVING UNDERSTANDING OF THE CONCEPT OF QUADRATIC EQUATIONS THROUGH THINK PAIR SHARE (TPS) LEARNING MODEL FOR CLASS X STUDENTS OF SMAN 13 AMBON
This study aims to improve the understanding of the concept of quadratic equations by applying the Think Pair Share (TPS) learning model in class X students of SMAN 13 Ambon. The type of research used was classroom action research with data collection techniques through concept understanding tests. the subjects in this study were 30 students of class X SMAN 13 Ambon. The results showed that by using the Think Pair Share (TPS) learning model can improve the understanding of the concept of quadratic equations of class X students of SMAN 13 Ambon. The average percentage of concept understanding from cycle I to cycle III is 63%; 70%; 82% with moderate, high, high categories respectively. The average percentage of achievement of each indicator of concept understanding is; (1) restate a concept: 54%;66%;93%. (2) using and selecting certain procedures or operations: 57%;66%68%. (3) applying concepts or algorithms in problem solving: 78%;79%;82%. The percentage of student learning completeness from cycle I to cycle III was 39.13%; 56.52%; 82.60% respectively.
FAKTOR RISIKO MUSCULOSKELETAL DISORDERS (MSDs) PADA KARYAWAN CV SUN PALONG BORNEO KABUPATEN KAYONG UTARA
Authors: Jaini Jaini , Sunarsieh Sunarsieh , Paulina Paulina 
Published: March 2024

Keluhan musculoskeletal adalah keluhan pada bagian – bagian otot skeletal yang dirasakan oleh seseorang mulai dari keluhan sangat ringan sampai sangat sakit. Tujuan penelitian ini adalah Menganalisis Faktor Risiko Musculoskeletal Disorders (MSDs) pada Karyawan CV Sun Palong Borneo Kabupaten Kayong Utara. Dari hasil studi pendahuluan yang dilakukan pada para pekerja di CV Sun Palong Borneo Kabupaten Kayong Utara yang bergerak dibidang air minum dalam kemasan. Didapatkan hasil dari 6 orang responden, ditemukan 6 orang (100%) responden yang mengalami keluhan MSDs. Desain penelitian ini adalah analitik observasional dengan pendekatan cross-sectional, dengan jumlah sampel sebanyak 30 orang responden. Teknik analisis data menggunakan uji chi – square. Hasil penelitian didapatkan data ada hubungan antara umur (p-value = 0,004); masa kerja (p-value = 0,002); Indeks massa Tubuh (p-value = 0,003) dengan keluhan Musculoskeletal Disorders (MSDs). Tidak ada hubungan antara kebiasaan merokok dengan keluhan Musculoskeletal Disorders (MSDs) dengan (p-value = 0,005).
Pengaruh Terapi Murottal Terhadap Kecemasan Pasien Pre Operasi Benigna Prostat Hiperplasia (BPH) Di Ruang Bedah RSUD Dr. Abdul Aziz
Authors: Seri Usman , Juniartati Erni , Ali Khusni 
Published: March 2024

Benigna Prostat Hiperplasia (BPH) merupakan tumor jinak yang terjadi pada laki-laki. Salah satu cara penat- alaksanaan BPH adalah operasi. Dalam fase pre operasi dapat menimbulkan kecemasan bagi pasien yang akan mengalami pembedahan, sehingga terjadi ketidakseimbangan dalam tubuh. Terapi Murottal adalah obat istime- wa bagi kegundahan hati, kesedihan, keputusasaan, dan kecemasan. Peneliti tertarik untuk meneliti tentang terapi Murottal terhadap kecemasan pada pasien preoperasi BPHÂ di Ruang bedah RSUD dr. Abdul Azis tahun 2017. Tujuan penelitian yaitu untuk menganalisis pengaruh terapi Murottal terhadap kecemasan pada pasien pre operasi BPH di Ruang bedah Rumah Sakit Umum Daerah dr. Abdul Aziz tahun 2017. Metode penelitian ini menggunakan desain penelitian Quasi experiment dan desain penelitian menggunakan rancangan Pre and Post test Control Group Design. Uji statistik yang digunakan pada penelitian ini adalah t-test. Teknik pengam- bilan sampel dalam penelitian ini menggunakan non probability sampling dengan teknik pengambilan sampel consecutive sampling dan jumlah sampel sebanyak 26 responden. Instrumen yang digunakan berupa alat ukur Hamilton rating scale for anxiety (HRS-A). Hasil penelitian didapat Nilai p value 0,001 lebih kecil dari pada nilai signifikansi yang ditetapkan peneliti yaitu 0,05 oleh karena itu maka Ha diterima. Terapi Murottal berpen- garuh terhadap kecemasan pada pasien pre operasi BPH Di Ruang bedah RSUD dr. Abdul Azis.
Efektivitas Cold Pack Modifikasi Terhadap Penurunan Skala Nyeri Pada Pasien Post Operasi Di Ruang Bedah RSUD Dr. Abdul Aziz Singkawang Tahun 2018
Authors: Marsia Marsia 
Published: March 2024

Cold pack modifikasi merupakan salah satu alternatif penanganan nyeri non farmakologi yang dirancang untuk menurunkan nyeri berbasis kenyamanan dengan memodifikasi cold pack original menggunakan kain kedap air, di kanan kiri terpasang karet elastis dan gasper yang bisa digunakan sesuai ukuran organ pembedahan yang di- tuju. Nyeri merupakan masalah utama pasien pada pasien post operasi. Tujuan penelitian ini yaitu untuk meng- etahui perbandingan efektifitas kompres dingin cold pack modifikasi untuk menurunkan nyeri pada pasien post operasi. Metode penelitian ini menggunakan rancangan Quasi eksperiment pre-test-post-test with control group design, subyek penelitian ditentukan menggunakan teknik total sampling pada pasien post operasi, yang dibagi menjadi 2 kelompok, perlakuan dan kontrol. Pada kelompok perlakuan diberikan intervensi cold pack mod- ifikasi dan pada kelompok kontrol diberikan intervensi cold pack original, masing-masing dilakukan 2 kali. Penggunaan uji statistik pada penelitian ini dengan uji dependent dan independen t-test. Hasil uji independen t-test sebelum dilakukan intervensi relatif sama. Setelah perlakuan 2 kali terdapat selisih dari pengukuran 1-2 dan bermakna secara statistik (p<0,05). Terdapat penurunan rasa nyeri sebesar 3 poin pada kelompok intervensi dan 1 poin pada kelompok kontrol. Penelitian ini membuktikan bahwa pemberian cold pack modifikasi lebih efektifÂ menurunkanÂ rasaÂ nyeriÂ danÂ memberikanÂ kenyamananÂ lebihÂ signifikanÂ dibandingkanÂ pemberianÂ cold pack original.
HUBUNGAN TINGKAT PENGETAHUAN TERHADAP SIKAP PERAWAT DALAM PERAWATAN PALIATIF PADA PASIEN KANKER DI RUMAH SAKIT UMUM dr SOEDARSO PONTIANAK
Authors: Nurjannah Nurjannah , Triyani Irma , Juniartati Erni , Limson Leonatus 
Published: March 2024

Penyakit kanker merupakan salah satu penyakit tidak menular yang menjadi penyebab kematian utama di seluruh dunia. Kanker memiliki tantangan tersendiri bagi penderitanya karena penyakit ini dapat mempengaruhi fisik, psikologis, sosial, ekonomi dan spiritual. Word Health Organization (WHO) mendefinisikan perawatan paliatif merupakan sebagai pencegahan dan pengurangan penderita pasien dewasa anak-anak dan keluarga pasien menghadapi masalah yang terkait dengan penyakit kronis dan terminal. Mengetahui Hubungan Tingkat Pengetahuan Dengan Sikap Perawat alam Perawatan Paliatif Pada Pasien Kanker Di Rumah Sakit Umum Dr Soedarso Pontianak. Penelitian ini adalah observasi analitik dengan dengan desain cross sectional. Dari penelitian ini didapatkan responden yang mempunyai pengetahuan baik 42 responden sedangkan pada perawat yang mempunyai pengetahuan kurang baik 27 responden, responden yang mempunyai sikap yang baik sebanyak 30 responden sedangkan yang mempunyai sikap kurang baik sebanyak 39 responden. Ada hubungan yang signifikan antara pengetahuan dengan sikap perawat dalam memberikan asuhan keperawatan palitif pada pasien kanker. Diharapakan bagi penelitian selanjutnya untuk menganalisis lebih jauh terkait hubungan pengetahuan dengan sikap perawat dalam memberikan perawatan paliatif.
Merkezi Sınavların Velilere Yönelik Sosyal, Psikolojik ve Ekonomik Yansımaları
Authors: ÜNSAL Serkan 
Published: March 2024

Bu araştırmanın amacı merkezi sınavların velilere yönelik sosyal, psikolojik ve ekonomik yansımalarını veli görüşleri doğrultusunda incelemektir. Araştırmada nitel araştırma desenlerinden fenomoloji deseni (Olgu bilim) kullanılmıştır. Araştırmanın çalışma grubunu ölçüt örnekleme yöntemiyle belirlenen öğrencisi Liselere Giriş Sınavı (LGS) veya Yükseköğretime Geçiş Sınavına (YGS) hazırlanan 14 veli oluşturmuştur. Veriler araştırmacı tarafından geliştirilen yarı yapılandırılmış görüşme formuyla toplanmıştır. Verilerin analizinde içerik analizi kullanılmıştır. Araştırmanın sonuçlarına göre merkezi sınavlar velilere sosyal açıdan; sosyalleşmelerine katkı sağlama, sosyal hayatlarını kısıtlama, sosyal baskı oluşturma, şeklinde etkide bulunurken, psikolojik
Açıdan yıpratma, heyecan oluşturma, gerginlik oluşturma, üzme, baskı oluşturma şeklinde etkide bulunmuştur. Araştırmada merkezi sınavların veli öğrenci arasındaki iletişimin sınav odaklı gerçekleşmesine, yorucu olmasına, sınırlı zamanda gerçekleşmesine, iletişimde çatışmaların ve kopmaların yaşanmasına neden olduğu sonucuna ulaşılmıştır. Ayrıca araştırmada merkezi sınavlara yönelik öğrencilere ek kaynak almak, öğrenciyi kursa göndermek ve özel ders aldırmak velileri ekonomik açıdan zorladığı sonucuna ulaşılmıştır. Araştırmada merkezi sınavlarla ilgili alınacak kararların ve yapılacak planlamaların velilere yönelik olası etkilerinin de göz önünde bulundurulması gerektiği önerilmiştir.
CHOOSING THE CONVEYOR DRIVE LAYOUT TAKING INTO ACCOUNT UNCERTAIN OPERATING CONDITIONS
Authors: Reutov Aleksandr 
Published: March 2024

The problem of choosing a conveyor drive layout using fuzzy partial criteria for uncertain operating conditions is considered.
The paper objective is to choose the conveyor drive layout with the best efficiency indicator based on fuzzy values of particular criteria, taking into account various operating conditions.
Research methodology. When choosing conveyor drive layout fuzzy set theories and a multi-criteria assessment of alternatives are used. The generalized criterion is formed from fuzzy expert assessments of particular criteria, taking into account various operating conditions. To compare the alternatives based on theories of Laplace, Wald and Savage, dephasing values of the generalized criterion are used.
The novelty of the work. A technique is developed for calculating efficiency indicators to select the best solution from a variety of alternatives based on theories of Laplace, Wald and Savage on fuzzy expert estimates of particular criteria for uncertain operating conditions.
Results. The problem of choosing a conveyor drive layout from a set of acceptable alternatives is formulated. A technique is developed for calculating efficiency indicators and choosing a conveyor drive layout from a variety of alternatives. An example of choosing a conveyor belt choosing a conveyor drive layout from 5 alternatives for 12 possible conditions is considered.
Conclusions. The developed technique of choosing a conveyor drive layout allows assess to systematically the importance of fuzzy particular criteria, the influence of uncertain operating conditions on the choice of a drive layout. An example of choosing a conveyor belt drive layout shows that according to Laplace and Wald theories, the best is a drive layout with two drive units in the head of the belt drive, according to Savage theory – a drive layout with two drive units in the head and one drive unit in the middle of the belt drive. Three drive layouts are not among the recommended ones for any of the efficiency indicators.