bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh pemberian ekstrak daun jambu biji (Psidium guajava) pada proses transportasi terhadap hemoglobin dan kelulusanhidup benih ikan mas (Cyprinus carpio)
Authors: Pasaribu Krisna , Hastuti Sri , Nugroho Ristiawan Agung 
Published: May 2023

Ikan mas (Cyprinus carpio) merupakan salah satu spesies ikan yang hidup di air tawar dan mempunyai peluang pengembangan budidaya besar untuk meraih potensi pasar yang terus meningkat dan bernilai ekonomi yang tinggi. Penambahan ekstrak daun jambu biji diduga mengandung metabolit sekunder flavonoid, tanin, alkaloid, steroid dan saponin.Daun jambu biji mengandung alkaloid, terpenoid, glikosida, tanin, dan flavonoid yang memiliki aktivitas antidiabetes dan memiliki tinggi antioksidan. Kandungan lainnya yaitu minyak lemak 6% dan minyak atsiri 0,4%, damar 3%, tanin 9% dan lainnya.Penelitian ini bertujuan untuk mengetahui pengaruh pemberian ekstrak daun jambu biji terhadap hemoglobin dan kelulushidupan benih dan mengetahui dosis terbaik ekstrak daun jambu. Penelitian ini dilaksanakan pada Agustus-September 2021 di Balai Benih Ikan (BBI) Mijen, Semarang, Jawa Tengah. Bahan uji yang digunakan adalah larutan teh dan telur ikan nila yang berasal dari BBI Mijen, Semarang. Metode yang digunakan adalah eksperimen dengan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan masing-masing 3 ulangan, perlakuan A (0%), B ( 0,10%), C (0,20%), D (0,30%). Data yang diamati adalah hemoglobin darah, Kelulushidupan kualitas air, lama waktu pingsan dan lama waktu pulih.Hasil penelitian menunjukkan bahwa pemberian ekstrak daun jambu biji pada saat proses transportasi tidak berpengaruh nyata terhadap perubahan nilai hemoglobin dan kelulushidupan benih ikan mas. Nilai selisih perubahan hemoglobin pada perlakuan 0%; 0,1%; 0,2%; dan 0,3% sebesar 1,37 ± 1,48 gr/ dL; -0,87 ± 3,19 gr/ dL; 3,57 ± 1,88 gr/ dL; dan 4,73 ± 2,57 gr/ dL serta nilai kelulushidupan sebesar 90,67 ± 2,31%; 94,00 ± 4,00%; 94,67 ± 2,31% dan; 95,33 ± 3,06%. Benih pada perlakuan 0,2% dan 0,3% mulai menunjukkan efek lemas dan pingsan serta lambatnya pergerakan operkulum pada menit ke-5 hingga 10. Perlakuan 0,1% menunjukkan ikan pulih pada menit ke-10.
Investigating the energy, environmental, and economic challenges and opportunities associated with steam sterilisation autoclaves
Authors: O’Callaghan Jordan , Fitzpatrick John , Lalor Fergal , Byrne Edmond 
Published: May 2023

Abstract
Despite steam sterilisation in autoclaves being a common industrial method of sterilisation, very little research has been conducted into quantifying the resources these processes demand and their associated environmental impacts. This paper aims to investigate industrial steam sterilisation in autoclaves with particular application to the biopharmaceutical industry. A mathematical model of a steam autoclave was developed to examine relationships between load size, load material properties and autoclave capacity with energy consumption, environmental impact and cost of sterilisation. The two main energy requirements are thermal energy to produce the clean steam for sterilising, and electrical energy for the vacuum pump. The study showed that thermal energy is dominant, particularly as load increases. The percentage of the maximum load at which the autoclave is operated has a major impact on the specific energy requirement or the energy required to sterilise per unit mass of load. For a given autoclave, the energy requirement increases with increased load but the specific energy requirement decreases. This in turn impacts on the emissions and the energy cost. It is thus shown that it is much more energy efficient to operate at higher loads, making the autoclave much more energy and cost effective, and with less environmental impact. There is potential for applying the analysis presented in this work for conducting optimisation studies for determining the sizes of autoclaves that could minimise the energy requirement, environmental impact and economic cost (3E) of investments for specified load versus time profiles.
Investigating the effect of green composite back sheet materials on solar panel output voltage harvesting for better sustainable energy performance
Authors: AL-Oqla Faris M. , Fares Osama 
Published: May 2023

Abstract
Clean sustainable energy and proper utilization of the available natural resources are of paramount importance for the modern societies. In this work, green composite materials were designed, fabricated and utilized as back sheets for the solar photovoltaic panels to investigate their effects on the output voltage of the solar cell unit. Such replacement of the back sheet of the solar cells would improve their efficiency while reducing the cost and enhancing better environmental conservations. Green back sheet composites were designed with 25 wt% and 50 wt% of high-density polyethylene with all Rhus typhina, Punica granatum and Piper nigrum powders. Investigations of the effect of green composite back sheet materials on solar panel output voltage harvesting have been carried out in Jordan at Zarqa city (latitude 32.07°, longitude 36.08°). Results have revealed that R. typhina and P. nigrum based composites with 25 wt% fiber loading have demonstrated much better output voltage comparable to the original back sheet cell. The maximum output voltage was found to be enhanced about 58 % with the green composite back sheets. This in order would improve the efficiency of such solar cell units and enhance better environmental indices.
Parenting in a new land: the influence of English language proficiency on immigrant parents’ experiences with intergenerational challenges
Authors: Roose Tamara Mae , Lo Meng-Ting 
Published: May 2023

Abstract
The purpose of this survey study was to explore how the English language proficiency of Asian and Latin American immigrant parents influenced their levels of intergenerational challenges as reflected in their experiences with diminished parental authority, role reversal, acculturation gap, value discrepancy, family conflict, and emotional distance. The 86 participants were Asian and Latin American immigrant parents from eight classes at three adult ESL programs in Southern California. They reported lower levels of intergenerational challenges than was expected based on the extant literature, and their experiences were quite similar regardless of their adult ESL class levels. Overall, the parents from different ethnic backgrounds shared more commonalities than differences as language and cultural learners raising children in a new land. This study sheds light on the experience of immigrant parents raising children in ethnic enclaves and pushes against common discourses about immigrants’ acculturation. The findings suggest that preserving their linguistic and cultural heritage has become increasingly important to many immigrant communities and may play a crucial role in how they navigate their roles as parents.
Assessing the determinant factors of risk strategy adoption to mitigate various risks: An experience from smallholder rubber farmers in West Kalimantan Province, Indonesia
Authors: Imelda Imelda , Mulyo Jangkung Handoyo , Suryantini Any , Masyhuri Masyhuri 
Published: May 2023

Abstract
Over the past decade, smallholder rubber farming experienced significant issues related to risks of rainy season, rubber diseases, and price decreases. The risk exposure will reduce agricultural productivity, income, and sustainability. Farmers are expected to mitigate various risks by adopting the appropriate risk strategy. Efforts to support the risk strategy adoption are constrained by the lack of scientific research in rubber farming, especially for simultaneous risk strategy adoption. This study aims to identify the risk strategy adoption in rubber farming and analyse the determinant factors by considering farmers’ socioeconomic, rubber farm characteristics, and risk perception. The data were collected from 200 rubber farmers in West Kalimantan, Indonesia, and analysed using a multinomial logit model. The study results show that the most selected strategy was income diversification. The multinomial logit model indicates that farmers’ age, family members, rubber age, rubber clones, and rainy season risk perception positively affect the adoption of risk strategy. In contrast, experience, farm area, and farm distance have a negative effect. The results also indicate that family members, farm area, and farm distance variables significantly affect all choices of risk strategy adoption. The results of this study suggest several implications for government and policymakers in providing assistance and counselling, capital assistance, input access, and improving transportation, road access, and communication.
Elements of Carnival as a Mirror of the Protagonists' Insanity in Strangers on a Train
Authors: Nadal-Ruiz Alejandro 
Published: May 2023

Given Hitchcock’s fascination with the carnivalesque, the novel Strangers on a Train and its film adaptation engage in a dialogue where the amusement park is the focal point. Even if Hitchcock deviates from the novel by returning to the funfair at the end, what is sought with such reappearance is to draw attention to the key role of carnival as a reflection of the strangers’ mental disorder. Although a number of studies deal with the relationship between the two strangers, there is little research that provides an in-depth analysis of the close relationship between carnival and the two protagonists’ mental imbalance. Hence, this article provides a thorough study of how carnival elements mirror the protagonists’ insanity and, most interestingly, to propose a comparative analysis that paves the way for new insights into the relationship between the novel and its film adaptation. Accordingly, this article aims to shed light on how the use of carnival elements in both Highsmith’s Strangers on a Train and its film adaptation by Hitchcock enhances the two strangers’ mental instability.
Acerca del espigar en la investigación doctoral
Authors: Henao Vergara Gloria Nancy , Ospina Álvarez Teresita 
Published: May 2023

Resumen: El presente artículo relata el procedimiento metodológico derivado de la investigación doctoral titulada “Del encuentro con el extraño para una pedagogía de la extrañeza”, cuyos propósitos estuvieron dirigidos a componer unos trazos para una pedagogía de la extrañeza desde la experiencia del extraño en el encuentro con migrantes venezolanos. En este sentido, empleamos el método del espigueo, a partir del cual fue posible mapear e indagar la experiencia de lo extraño con migrantes venezolanos en la ciudad y en la escuela; así como mapear las fuerzas formadoras emergentes de la experiencia de lo extraño para diagramar unas acciones educadoras desde la potencia formadora que contiene la extrañeza; deteniéndonos en el espigueo de gestos y en el mapeo de sus fuerzas formadoras. Y, para ello, desarrollamos unas acciones, unas formas de registro que nos llevaron a unos trazos educativos a partir de relatos, estados de WhatsApps, conversaciones, observaciones y relatos compartidos.Palabras clave: Espigar. Mapear. Fuerzas formadora. A respeito do espigar na pesquisa doutoralResumo: Este artigo relata o procedimento metodológico decorrente da pesquisa de doutorado intitulada “Do encontro com o estranho para uma pedagogia da estranheza”, cujos objetivos foram redigir alguns contornos para uma pedagogia da estranheza a partir da experiência do estranho no encontro com imigrantes venezuelanos. Nesse sentido, utilizamos o método del espigueo, a partir do qual foi possível mapear e investigar a experiência do estranho com os imigrantes venezuelanos na cidade e na escola; bem como mapear as forças formativas emergentes da experiência do estranho para diagramar as ações educativas a partir da força formativa que contém a estranheza; parando no espigueo de gestos e no mapeamento de suas forças formativas. E, para isso, desenvolvemos algumas ações, algumas formas de registro que nos levaram a alguns traços educacionais baseados em relatos, status de WhatsApp, conversas, observações e histórias compartilhadas.Palavras-chave: Espigar. Mapear. Forças formadoras
Entre paisagens sulinas: fotografias para criação de novos mundos possíveis
Authors: Azevedo Cláudio Tarouco de 
Published: May 2023

Ensaio visual do artista brasileiro Cláudio Azevedo que contrasta fotografias da paisagem sulina no Brasil. Palavras-chave: Paisagem sulina. Fotografia. Educação ambiental. Arte e meio ambiente. Between Southern Landscapes: Photographs for creating new possible worldsAbstract: Visual essay by the Brazilian artist Cláudio Azevedo which contrasts photographs depicting the landscape in southern Brazil. Keywords: Southern landscape. Photography. Environamental education. Art and Environment.
The California Indian Scalp Bounty Myth
Authors: Magliari Michael F. 
Published: May 2023

In the often contentious and acrimonious debates over whether the Golden State’s Indigenous peoples were targeted for genocide by white Euro-Americans between 1846 and 1873, inflammatory scalp bounty accusations against the state of California have become a staple of public discourse. California is frequently accused by public leaders, political activists, academic scholars, and others of once having paid cash rewards ranging anywhere from twenty-five cents to twenty-five dollars for Indian scalps, heads, and other body parts in order to wage a deliberate “war of extermination” against its Native peoples. So routinely are these allegations made that they now go largely uncontested and appear to have won nearly universal acceptance as established historical facts. These “facts,” however, are false. The state of California never offered, let alone actually paid, cash bounties for Native American scalps, heads, or other body parts. And, despite numerous similar claims to the contrary, neither did any county—nor, with one possible exception, did any incorporated town or city.
Nevertheless, thanks in large part to repeated and unchallenged assertions based on very faulty scholarship, scalp bounty allegations have been allowed to evolve over the past thirty years to become a popular but polarizing myth that serves mainly to inflame public passions and to frustrate rational discourse in what are frequently bruising public quarrels over vital contemporary issues such as tribal sovereignty, reparations for past injustices, casino gaming regulation, and, of course, disputed points of historical interpretation central to the genocide debate.
This essay traces the evolution of the pervasive California Indian scalp bounty myth from its origins in the 1990s and examines the numerous different versions that its propagators have put forth over time, despite a near-total lack of concrete supporting evidence. Although scalping itself was widely practiced by state militiamen and volunteer “Indian fighters” like the infamous Jackson Farley and Hi Good, the taking of corporal trophies in California’s genocidal frontier wars did not result from the pursuit of financial reward. Indeed, the remarkably small number of documented cases reveals that Indian scalp bounties remained extremely rare in gold rush California and were seldom offered anywhere except in a scattered handful of isolated and unincorporated rural communities.
Relação entre a expectativa do público consumidor de serviços de beleza e a atuação dos profissionais da área
Authors: Quinta Deolinda Bento 
Published: May 2023

O presente artigo tem como objetivo apresentar uma proposta com potencial para influenciar positivamente as expectativas dos clientes consumidores de serviços de beleza através de recomendações práticas que visam o fortalecimento da atuação dos profissionais da beleza. A pesquisa é de natureza exploratória com abordagem qualitativa e procedimentos de estudo de caso único, fundamentadas na triangulação de entrevista, observações e documentos. Resultados evidenciaram que as atuações dos profissionais da beleza não se correspondem às expectativas atuais dos consumidores. Concluiu-se que, aquilo que vem sendo chamada de oitava onda de serviços apresenta grandes desafios, pois na lógica emergente, o serviço é vendido e, opcionalmente, pode haver a venda de produtos envolvendo a prestação de serviços. Isto significa que os prestadores de serviços tem diante de si o desafio da especialização para se manterem competitivos.Por outro lado, há indícios de que o nível de insatisfação dos consumidores de serviços tende a crescer cada vez mais.
JORNALISMO MIDIATIVISTA AMBIENTAL: CONTRIBUIÇÕES DE UMA ANÁLISE DE COBERTURA JORNALÍSTICA DA AMAZÔNIA REAL
Authors: Miguel Katarini Giroldo , Souza Amanda Franco de 
Published: May 2023

Nossa pesquisa busca entender e problematizar as proximidades entre o jornalismo ambiental e a prática midiativista a partir da Analise da Cobertura Jornalística (Silva & Maia, 2011) do portal Amazônia Real, adaptada aos nossos esforços empíricos em um protocolo de jornalismo ambiental midiativista. Apresentamos, nos limites deste artigo, os caminhos metodológicos de duas reportagens que destacam a força dos pressupostos do jornalismo ambiental: ênfase na contextualização, pluralidade de vozes, assimilação do saber ambiental (Loose & Girardi, 2017); as táticas discursivas do midiativismo, mas também o subaproveitamentos dos recursos e da forma de apresentação dos acontecimentos. Mais que noticiados, eles deveriam ser protestados, no horizonte da reportagem-manifesto.
INVESTIGATION OF METHANE HYDRATE COMBUSTION PROCESS WITH ACCOUNT FOR INCOMPLETE WATER EVAPORATION
Authors: Valiakhmetov A. I. , Stolpovskiy M. V. 
Published: May 2023

In this paper, a mathematical model of the combustion process of a gas hydrate sample taking into account the non-equilibrium of its dissociation process is presented. The system of basic equations is built on the laws of conservation of mass (for the entire system and each of its components), energy and momentum, and is supplemented by conditions at the moving boundary of the phase transition. On the basis of a numerical solution based on the method of large particles, the fields of system temperature and gas mixture components concentrations are constructed. It has been established that with a decrease in the proportion of water turning into steam, there is an increase in temperature at the combustion front, as well as the speed of combustion front movement.
TEMPERATURE PREDICTION OIL PIPELINE IN FROST AREAS
Authors: Garris N. A. , Zhurikhina A. V. , Shamov S. A. 
Published: May 2023

Pipeline operation in frost areas is essential thing in the present days. Changes of low-temperature profile of frozen soil along the length of a pipeline lead to changing conditions of the pipeline. That’s why it is vital to properly forecast and model thermo-hydraulics regimes and evaluate pipeline conditions to sustain correct positioning of the pipeline and to prevent incidents. That’s why this paper describes a simple forecasting method. It is based on heat balance equation, where coefficient k describing heat transfer from a pipeline to the environment considers that soil gets to technogenic state. Actual efficiency and temperature data from an active non-isothermal pipeline over 2 years period after its commissioning are used to derive actual value of the coefficient k. Pipeline type – underground, insulated, initial petrol temperature is up to 45 °С. Using Shukhov’s formula it is possible to calculate average value of the coefficient k. Based on this coefficient we can then derive forecasted values and get the following data: temperature profile, temperature value at specific points and cross sections of a pipeline, thawing area, critical locations of a pipeline. This method allows to timely evaluate conditions of a pipeline in permanent frost soil. Results can be used to forecast and predict thermo-hydraulics regimes not only for a specific pipeline but also for other Northern ones. It also allows to evaluate conditions of critical parts of a pipeline when taking in account actual size of thawing areas.
LIDAR MEASUREMENTS OF METHANE CONCENTRATION IN OIL AND GAS PRODUCTION REGIONS BY PLATFORM METHOD
Authors: Chobanzade I. Kh. 
Published: May 2023

The issues of carrying out lidar measurements of methane concentration in oil production platform operation zones are analyzed. The issue of lidar re-calibration during methane measurements in the areas of oil platform operation zones in wind conditions is considered. It is noted that due to the low efficiency of gas flares, part of the methane does not burn and spreads in the atmosphere by wind. It is noted that in the presence of a headwind towards the meter, an increase in the concentration of not only methane, but also aerosol is observed. In this case, it becomes necessary to re-calibrate lidar for aerosol using the corresponding solar photometer readings.
STUDY OF ALTERNATIVE METHODS FOR CARBON DIOXIDE APPLICATION IN CONCRETE PRODUCTION
Authors: Zalyatdinov A. A. , Sadreeva R. Kh. , Zakirova R. F. 
Published: May 2023

It is known, concrete ranks second after water in the total annual volume of consumption. Currently, there is no construction material that could replace concrete. It is the main structural building material. The required raw material for concrete production is Portland cement. Unfortunately, the Portland cement production emits carbon dioxide, which accounts for up to 8 % of global emissions of this gas, and is a real threat to the environment.
The World Business Development Council predicts an increase in cement production by 12–23 % by 2050. This suggests that it is necessary
to look for methods for Portland cement production with the lowest carbon dioxide emission and methods for its recovery and use.
The purposes of the research are to study the factors contributing to CO2 emission in Portland cement production; analysis of the main ways of carbon dioxide recovery.
To solve the problem, popular methods and equipment for concrete production of using dioxide, as well as devices for determining the compressive and tensile strength of concrete, have been investigated.
MAGNETIC-CONTROLLED SORBENT FOR WATER SURFACE CLEANING FROM OIL POLLUTION
Authors: Sapronova Zh. A. , Svyatchenko A. V. , Tokach Yu. E. , Rubanov Yu. K. , Olshanskaya L. N. , Shamraeva D. A. 
Published: May 2023

The modern structure of industry, outdated technologies form a wide range of environmental problems and sharply worsen the ecological situation. Various methods are used to clean water sources from oil spills: mechanical, thermal, physicochemical, biological. Among the available alternatives, oil sorbents are considered as one the most economical, efficient and environmentally friendly materials because oils can be properly absorbed by oil sorbents without causing secondary water pollution.
The purpose of the research is to study the possibility of obtaining an effective magnetically controlled sorption material for cleaning the water surface from oil spills.
Research objectives are to analyze the composition of electric arc steel-smelting furnaces (EASSF) dust; conduct research on the hydrophobization EASSF dust with paraffin; determine the optimal proportions of dust and hydrophobizator, which allow the material to maintain buoyancy and magnetic susceptibility; evaluate the interaction of the obtained material with an oil spills on water surface.
The dust sample elemental composition was obtained using the ARL9900 Intellipower Workstation.
The sorption material was prepared as follows: the EASSF dust was mixed with a sample of paraffin, then it was heated to 105 °C in an oven, mixed, and cooled to a temperature of 20 °C.
The true density was determined by the pycnometric method. The method ASTM D2854-70 «Standard Test Method for Apparent Density of Activated Carbons» was used to determine the bulk density.
Electric steelmaking waste was used as a magnetically susceptible component. Studies have been carried out on its hydrophobization with paraffin for possible use in water treatment. With the waste : paraffin ratio of 1 : 0.07, a material with high hydrophobicity and buoyancy was obtained. Tests for thickening and extracting a crude oil spill from water surface proved the promise of using the obtained material for cleaning water from oil pollution.