bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of operating parameters on the sludge settling characteristics by treatment of the textile dyeing effluent using electrocoagulation
Authors: Prajapati Abhinesh Kumar , Sharma Deepak , Pal Dharm , Patidar Jitendra , Sen Shamal 
Published: April 2023

Abstract
This study invested the impact of the operational parameters (pH, Current Density (CD) and Electrode Gap (EG)) on the sludge generated after electrocoagulation treatment of textile dyeing effluent (TDE) by studying sludge settleability and filterability characteristics of EC generated sludge. Electrocoagulation treatment evaluated at laboratory scale with aluminum as electrode material at operating condition of parameters of pH, CD and EG. (pH-5.5, CD-105.12 A/m2 and EG-2.5 cm). Under these operating conditions, maximum COD reduction was achieved 88.45 % and maximum color reduction was about 66.92 %. Settling characteristics of TDE was studied by sludge volume index (SVI) and Centrifugal settleability index (CSI). From disposal point of view, filterability characteristic was also studied by simple gravity filtration method. Specific cake resistance, α (m/kg), filter medium resistance, R
m(m−1) was also studied. The specific cake resistance was found in the order of 38.4 × 1013 >34.13 × 1013 >22.25 × 1013 >11.19 × 1013 >7.30 × 1013 (m/kg) at the pH 9.5, 7.5, 1.5, 5.5 and 3.5 respectively. While filter medium resistance was found to be 111.22 × 109, 92.28 × 109, 82.33 × 109, 41.38 × 109 and 13.87 × 109 m−1 at pH 7.5, 9.5, 3.5, 5.5 and 1.5 respectively.
Safety, immunogenecity and effectiveness of ChAdOx1 nCoV-19 vaccine during the second wave of pandemic in India: a real-world study
Authors: Chavan Preeti , Dey Rajashree , Castelino Renita , Kamble Akshay , Poladia Pratik , Bagal Rajani , Jadhav Monica , Shirsat Aditi , Chavan Ashish , Dhumal Sachin , Kumar Sharath , Krishnamurty Manjunath Nookala , Bhat Vivek , Bhattacharjee Atanu , Gota Vikram 
Published: April 2023

Abstract

Objectives
This real-world study was conducted to assess the adverse effects following immunization (AEFI) and immunogenicity of ChAdO×1 nCoV-19 vaccine in terms of neutralising antibody titers and to study the effects of covariates such as age, sex, comorbidities and prior COVID status on these outcomes. Also, the effectiveness of the vaccine based on interval between the two doses was also investigated.

Methods
A total of 512 participants (M/F=274/238) aged 35(18–87) years comprising a mixed population of healthcare workers, other frontline workers and general public were enrolled between March and May 2021. Records for adverse events if any were collected telephonically by following up with participants up to 6 months post first dose and graded as per Common Terminology Criteria for Adverse Events (CTCAE) version 5. Blood samples for measuring antibody titers against the receptor binding domain (RBD) were collected serially using a convenient sampling strategy up to 6 months after the first dose. Data on breakthrough COVID infection was collected telephonically till December 2021.

Results
Incidence of local reactions was higher after first dose at 33.4 % (171/512) compared to those after second dose at 12.9 % (66/512). Commonest side effect observed was injection site pain after the first (87.1 %; 149/171) and second (87.9 %; 56/66) dose respectively. Among systemic reactions, fever was the most common manifestation followed by myalgia and headache. Female sex (p<0⸱001) and age less than 60 years (p<0⸱001) had significantly higher predilection for systemic toxicities. Age ≤60 years (p=0.024) and prior-COVID (p<0.001) were found to be significantly associated with higher antibody titers, however, no association was found between these variables and breakthrough COVID infection. Longer spacing between the doses (≥6 weeks) was found to offer better protection against breakthrough infection compared to a spacing of 4 weeks. All breakthroughs were mild-moderate in severity, not requiring hospitalization.

Conclusions
The ChAdOx1 nCov-19 vaccine is apparently safe and effective against SARS-CoV-2 virus infection. Prior COVID infection and younger age group achieve higher antibody titers, but no additional protection. Delaying the second dose up to at least 6 weeks is more effective compared to shorter spacing between doses.
“Literally I Grew Up” Secondary–Tertiary Transition in Mathematics for Engineering Students beyond the Purely Cognitive Aspects
Authors: Vinerean Mirela , Liljekvist Yvonne , Bengü Elif 
Published: April 2023

AbstractHigh dropout rates in the first year of undergraduate studies are an expression of the secondary–tertiary transition problem and they seem to be particularly high in those degree programs where specialized mathematics courses are taught in the first year of study. Research shows that students’ difficulties during the transition period cannot be reduced to purely cognitive factors. In this article, we address the secondary–tertiary transition problem in mathematics for engineering students. Based on a questionnaire with focus beyond the purely cognitive aspects, a comparison of the transition problem at three European mid-sized universities is carried out, to identify common challenges and difficulties, as well as differences. The questionnaire concentrates on the four dimensions (personal, organizational, content related, and social) and corresponding critical requirements for a successful transition described in Trautwein, C., & Bosse, E. (2017). The first year in higher education – critical requirements from the student perspective.Higher Education,73, 371–387. A group of 308 first-year engineering students partook in the study. In the presentation, we highlight students’ perceptions regarding the transition, changes, and challenges they experienced under the above-mentioned four dimensions and discuss similarities and differences between countries.
Industrial gas turbine performance prediction and improvement – a case study
Authors: Mzad Hocine , Bennour Fethi 
Published: April 2023

Abstract
The gas turbines (GTs), model M3142R/GE MS 3002, equipping the natural gas compression and crude oil pumping stations of SONATRACH’s pipeline transport of hydrocarbons activity are robust despite their dilapidation and state of service, but mediocre in terms of energy efficiency and power output. According to the manufacturer, for temperatures ranging from 15 to 47 °C, the efficiency of these machines drops from 26.78 to 25.03 % and their power drops from 11.29 to 8.9191 MW. It should be noted, however, that the number of these turbines exceeds 80 units and that their operation dates from 1974. The intention of this paper is to improve the gas turbine performance, mainly the efficiency and shaft power, by an evaporative cooling process of the compressor intake air. Besides, it is proposed to lower the upper limit power in periods of high temperatures to reduce gas consumption. To achieve these objectives, a mathematical model was implemented under Matlab R16, which reproduced the real behavior of these machines. It follows that this simulation made it possible to highlight relevant gains in terms of power and efficiency of the order of 1.361 MW and 3.4 % at a temperature of 47 °C.
Prediction of lung maturity through quantitative ultrasound analysis of fetal lung texture in women with diabetes during pregnancy
Authors: Rabachini Caetano Ana Carolina , Machado Nardozza Luciano Marcondes , Perez Zamarian Ana Cristina , Silva Drumond Luiza Grosso , Chiaratti de Oliveira Allan , Dualib Patricia Medici , Araujo Júnior Edward , Mattar Rosiane 
Published: April 2023

Abstract

Objectives
The present study aimed to evaluate the performance of QuantusFLM® software, which performs quantitative ultrasound analysis of fetal lung texture, in predicting lung maturity in fetuses of diabetic mothers.

Methods
The patients included in this study were between 34 and 38 weeks and 6 days gestation and were divided into two groups: (1) patients with diabetes on medication and (2) control. The ultrasound images were performed up to 48 h prior to delivery and analyzed using QuantusFLM® software, which classified each fetus as high or low risk for neonatal respiratory morbidity based on lung maturity or immaturity.

Results
A total of 111 patients were included in the study, being 55 in diabetes and 56 in control group. The pregnant women with diabetes had significantly higher body mass index (27.8 kg/m2 vs. 25.9 kg/m2, respectively, p=0.02), increased birth weight (3,135 g vs. 2,887 g, respectively, p=0.002), and a higher rate of labor induction (63.6 vs. 30.4 %, respectively, p<0.001) compared to the control group. QuantusFLM® software was able to predict lung maturity in diabetes group with 96.4 % accuracy, 96.4 % sensitivity and 100 % positive predictive value. Considering the total number of patients, the software demonstrated accuracy, sensitivity, specificity, positive predictive value and negative predictive value of 95.5 , 97.2, 33.3, 98.1 and 25 %, respectively.

Conclusions
QuantusFLM® was an accurate method for predicting lung maturity in normal and DM singleton pregnancies and has the potential to aid in deciding the timing of delivery for pregnant women with DM.
Role of actors in promoting sustainable peatland management in Kubu Raya Regency, West Kalimantan, Indonesia
Authors: Sanudin  , Fauziyah Eva , Widyaningsih Tri Sulistyati , Harianja Alfonsus Hasudungan , Widiyanto Ary 
Published: April 2023

Abstract
Sustainable peatland management needs collaboration among many actors. This study portrayed the role of actors in managing peatland in Kubu Raya Regency, West Kalimantan, based on their interests and influence factors. We employ the purposive sampling method to select 13 actors to represent their institutions to assess their organization’s level of interest and influence in peatland management. The results indicated four existing groups categorized as key players, context setter, subject, and crowd. The key player group has the primary role in program planning and implementation of the Forest Management Unit of Kubu Raya, Wetland Ecosystem Management Unit, Regional Development Planning Agency, and Agriculture Service of Kubu Raya Regency. The subject group supports peatland management programs in the implementation and supervision role, which consists of forest concessionaire (PT Ekosistem Khatulistiwa Lestari) and communities. The context setter group has roles in regional planning, regional supervision, and monitoring of fire hazards, including Production Forest Management Institute in Pontianak, Fire Brigade, and Regional Forest Area Designation Agency III in Pontianak. The last stakeholder is the extension worker categorized in the crowd group, which empowers and assists the community in managing peatland. Avoiding conflicts of interest and promoting collaborative actions are essential factors needed to ensure sustainable peatland management.
Reaction dynamics of molecules in highly electronically excited states attained by multiphoton and multiple excitation methods
Authors: Miyasaka Hiroshi , Ito Syoji , Sotome Hikaru 
Published: April 2023

Abstract
Multiphoton absorption and multiple excitation can lead to the formation of highly electronically excited states of molecules. We have been applying these excitation methods to explore specific photochemical reactions, which are rather difficult to attain by normal one-photon absorption processes. In the present review, we will introduce several examples of these photochemical responses specific to highly excited state in the condensed phase, such as two-photon-gated cycloreversion, one-color control of both reactions in photochromic systems and rapid capture of an electron ejected from the higher excited state leading to rapid generation of charge-separated states at the high energy level with a lifetime much longer than microseconds.
Eco-friendly MoS2/waste coconut oil nanofluid for machining of magnesium implants
Authors: Saravanan R. , Sathish T. , Vijayan V. , Rajkumar S. , Sharma Shubham , Li Changhe , Zhang Yanbin , Sharma Kamal , Eldin Sayed M. 
Published: April 2023

Abstract
The cost of the coolant and its disposal cost are significant issues in metal machining processes. In biocompatible magnesium alloy-based medical implants and instrument manufacturing, the cost hikes are owing to the use of unconventional machining processes and computerised numerical control machines. This research aims to improve machinability performance and optimize process parameters for biocompatible magnesium implant manufacturing for biomedical applications using eco-friendly nanofluid of MoS2 nanoparticles suspended in waste coconut oil. The nanofluid was prepared from the multiple times used waste coconut oil (waste) and was mixed with MoS2 nanoparticles. The orthogonal array L16, Taguchi analysis, and analysis of variance were employed in experimental design and statistical optimization. The machinability performance was determined by measuring and comparing the responses like cutting force, feed force, surface roughness, cutting zone temperature, and tool wear. They were compared with machining using a nanofluid and conventional commercial coolant. The results reveal that the proposed method of machining improved machinability performance appreciably; therefore, the observations of the proposed method were used and the process parameters were optimized. Mathematical models were developed for the prediction of process parameters. The proposed method exhibited the average reduction of the cutting force by 68.23167 N, feed force requirements by 34.180 N, the cutting zone temperature by 60.435°C, the surface roughness by 0.118908 µm, and the tool wear by 039938 mg·h−1.
“Listen and Be Amazed!”: Odeon, Künneke, and the First Recordings of Complete Symphonies
Authors: Hepokoski James 
Published: April 2023

Abstract
Between 1911 and 1913, Odeon records, in Berlin, produced and made available for sale five complete, four-movement symphonies, the first complete symphonies ever recorded. They were Beethoven’s Fifth and Sixth Symphonies (August and November–December 1911), and then Haydn’s Symphony no. 94 (“Surprise”) and Mozart’s Symphonies nos. 40 and 39 (in that order, March and April 1913). Each was performed by members of the Odeon company’s orchestra, billed as the “Großes Odeon-Streich-Orchester.” While no conductor is identified on the labels, it was surely Eduard Künneke, Odeon’s house conductor at that time. (Arthur Nikisch’s Beethoven’s Fifth with the Berlin Philharmonic would follow, from Grammophon records, in November 1913.) Odeon’s decisions to record these five symphonies took place within two larger corporate contexts, 1907–13: first, that of what was becoming increasingly possible within the enabling yet constraining affordances of the era’s music-recording industry; second, that of how those affordances were giving rise to the more innovative plans and economic gambles of recording extended classical works—longer stretches of operetta and opera, high-prestige orchestral music, and, eventually, symphonies. Much of this history can be traced in reports, reviews, and advertisements in the contemporaneous German trade journal the Phonographische Zeitschrift. The whole is framed here within the contexts of recent media theory and varying views of the impact of sound recordings on twentieth- and twenty-first-century listening practices. As Antoine Hennion put it, “The disc has been powerful enough to introduce modern listeners to musical repertoires conceived with a different relationship in mind.”
Preantral follicle numbers and size in heifers carrying Trio, a bovine high fecundity allele
Authors: Constantino James V , Carranza-Martin Ana , Premanandan Christopher , Kirkpatrick Brian W , Wiltbank Milo C , Garcia-Guerra Alvaro 
Published: April 2023

In brief
The bovine high fecundity allele, Trio, results in the occurrence of multiple ovulations and is characterized by antral follicles that develop slower and acquire ovulatory capacity at smaller sizes. This study provides novel information on the effect of the Trio allele on early folliculogenesis.

Abstract
The bovine high fecundity allele, Trio, causes overexpression in granulosa cells (GCs) of SMAD6, an inhibitor of BMP15-activated SMAD signalling. Furthermore, the Trio allele results in antral follicles that develop slower, acquire ovulatory capacity at smaller sizes, and have three-fold greater ovulation rate compared to half-sib non-carriers. The present study was designed to determine preantral follicle numbers and size in Trio carrier and non-carrier cattle testing the hypothesis that inhibition of SMAD signalling would alter preantral follicle activation and/or growth. Ovarian tissues from Trio carrier (n = 12) and non-carrier (n = 12) heifers were obtained by laparotomy after follicle wave synchronization. Follicle numbers and dimensions were determined for each stage of development (primordial, transitional, primary, and secondary) from paraffin-embedded sections. There were no differences in the number of primordial, transitional, or secondary follicles or in antral follicle count, circulating AMH, or ovarian volume between carriers and non-carriers. Trio carriers had ~2.5-fold greater (P < 0.01) number of primary follicles than non-carriers, and transitional and primary follicles were larger (~1.2-fold; P < 0.1) in Trio carriers. Oocyte volume of primordial and transitional follicles was not different between genotypes; however, oocytes were larger (P < 0.05) in primary (~1.3-fold) and secondary (~1.8-fold) follicles for Trio carriers. Granulosa cell numbers were not different (P > 0.3) between carriers and non-carriers, irrespective of the stage of development. These results suggest that, after primordial follicle activation, follicles in Trio carrier cattle have slower progression through the primary stage, hence the larger oocyte and greater number of primary follicles.
Az önkritikus perfekcionizmus mint mentális betegségtünet és nem szuicidális önsértés prediktor kamaszok körében
Authors: Reinhardt Melinda , Drubina Boglárka , Kökönyei Gyöngyi 
Published: April 2023

Háttér és célkitűzésekA diszpozicionális perfekcionizmus többdimenziós jelenség, mely a személy önmagával szemben állított magas sztenderdjei (perfekcionista törekvések) mellett irreális elvárásokat (perfekcionista aggodalmak) is magában foglalhat. Azt, hogy a személyiségműködésben a perfekcionizmus egészséges vagy maladaptív, önkritikus vonulata a meghatározó, a két perfekcionizmuskomponens aránya határozza meg. Utóbbit különböző pszichopatológiai jelenségek rizikó- és fenntartó faktoraként tartják számon. Kutatásunk célja nem klinikai kamaszpopulációban a multidimenzionális perfekcionizmus különböző mentális egészségmutatókkal (pl. pszichés tünetek, nem szuicidális önsértés) való összefüggéseinek feltárása volt.MódszerVizsgálatunkban 1015 középiskolás (66,1% lány; átlagéletkor 16,81 év; szórás = 1,42) vett részt. A perfekcionizmus komponenseit a Majdnem Tökéletes Skála rövid változatával, az önsértő viselkedést az Állítások az Önsértés Kapcsán Kérdőívvel mértük fel. A pszichés tüneteket a Képességek és Nehézségek Kérdőívvel, míg a mentális jóllétet a Serdülő Mentális Egészség Kontinuum Skála rövid változatával térképeztük fel.EredményekAz önkritikus perfekcionista csoportba sorolható tanulók jelzik a legrosszabb mentális állapotot, körükben a legmagasabb – közel 50% – az aktuális önsértők aránya. Többszörös lineáris és multinomiális regressziós modelleken alapulva rámutattunk, hogy az önkritikus perfekcionizmus jelenléte növeli, míg az adaptív perfekcionista hozzáállás csökkenti mind a mentális betegség tünetszámot, mind az egy hónapon belüli önsértés esélyét. A látens klaszterezéssel azonosított önsértő csoportok közül a Súlyos önsértők csoportjában a legmarkánsabb az önkritikus perfekcionista hozzáállás és a legalacsonyabb a szubjektív jóllét.KövetkeztetésekHazai középiskolás mintában is megerősítést nyert, hogy a perfekcionizmus önkritikus komponense rizikófaktorként határozható meg a rosszabb lelki egészségmutatók, kiemelten a nem szuicidális önsértés tekintetében. Az összefüggések alapján a mentális egészség szűrésében és fejlesztésében iskolai közegben is megfontolandó a tanulók perfekcionizmusjellemzőinek azonosítása.
Differentiated instruction in the EFL classroom: An interview study on Hungarian primary and secondary school EFL teachers' views and self-reported practices
Authors: Kótay-Nagy Annamária 
Published: April 2023

AbstractIn recent decades, there have been growing expectations for language teachers to use differentiated instruction (DI) in their classrooms to address the diverse needs of their students. Currently, however, relatively little is known about how teachers of English as a foreign language (EFL) working in Hungarian public education view the concept of DI and implement it in practice. The present study sought to explore this question by interviewing eight Hungarian primary and secondary school EFL teachers on their views and practices of DI. More specifically, the study strove to explore the participants' understanding of and attitude towards DI as well as the differentiation strategies they report to use and the challenges and enablers they perceive when implementing DI. The data were subjected to template analysis. Results suggest that teachers have a solid understanding of the goals of DI and show a primarily positive attitude towards the approach but are less conscious about the strategies available to them and tend to differentiate mostly intuitively. They perceive challenges both in planning and delivering differentiated lessons, such as coping with increased preparation time and having to multitask in class. Exchanging good practices in formal and informal training sessions, cooperating with colleagues and parents, and having rearrangeable furniture and digital tools in the classrooms emerged as enablers of DI. Implications point toward the need for professional development opportunities that help teachers conceptualize their intuitive approaches and extend their repertoire of DI strategies. Researching how technology may enhance DI practices also appears to be warranted.
Numerical simulation of replacement method to improve unsaturated expansive soil
Authors: Alnmr Ammar , Ray Richard 
Published: April 2023

AbstractIn this paper, a parametric study is done with various removal and replacement materials to study the effectiveness of the removal and replacement method on the wetting depth in the expansive soil and the amount of differential heave caused by climate conditions and common irrigation scenarios for the southern region of Syria. Soil suction changes and associated soil deformations are analyzed using finite element codes, VADOSE/W and SIGMA/W. The paper concludes that the optimum thickness for replacement with high permeability soil should be at least 1 m. In addition, it concludes that replacing soil with a permeability coefficient lower than the permeability coefficient of the site soil contributes to a 56% and 79% reduction in total and differential heave, respectively.
Hacia un nuevo enfoque del desarrollo humano
Authors: Uribe Tulia María 
Published: April 2023

El artículo " Hacia un nuevo enfoque del desarrollo humano", contiene los elementos teóricos que sustentan una orientación de carácter humanista, basada en la satisfacción de necesidades básicas, surgido como otra alternativa contrapuesta a la concepción materialista del desarrollo, fundamentada ésta en modelos económicos y mecaniscista, los cuales han acompañado los programas de desarrollo durantes mucho tiempo no viéndose resultados positivos y continuando con las desigualdades sociales que desequilibran la calidad de vida de las persona.