bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of Brita and Profissimo water filters
Authors: Hromić- Jahjefendić Altijana , Kozarić Selma , Hrapović Adna , Trebo Aiša , Tipura Ajla , Adilović Muhamed 
Published: September 2023

This research was focused on testing two water filters - Brita and Profissimo, which were filtering two and five liters of water every day. The lifespan of used filters is four weeks, while they have been actively used for eight weeks in this study to check for their efficiency after exceeded usage. Along with this, the quality of tap water, which was filtered using these two types of filters, was also tested. The experiment of the whole study was divided into three main stages: microbiological analysis, biochemical analysis, and UV-VIS spectrophotometric analysis of filtered water. The measurements were done every five days. The aim was to compare the performances of Brita and Profissimo filters after the completion of the required experiments. Based on the results that are obtained from all the analyses mentioned previously, we can conclude that Brita 2l filter was the most efficient, while Profissimo 5l filter appeared to be the least effective filter. It is important to emphasize that the tap water in Sarajevo is generally clean and drinkable, so there is a possibility that when using more polluted water, greater deviations in the operation of filters can be observed. Overall, both water filters were usable even after two months of active usage and our measurements showed good water quality which lacks impurities and is safe for drinking.
CUTE Reveals Escaping Metals in the Upper Atmosphere of the Ultrahot Jupiter WASP-189b
Authors: Sreejith A. G. , France Kevin , Fossati Luca , Koskinen Tommi T. , Egan Arika , Cauley P. Wilson , Cubillos Patricio. E. , Ambily S. , Huang Chenliang , Lavvas Panayotis , Fleming Brian T. , Desert Jean-Michel , Nell Nicholas , Petit Pascal , Vidotto Aline 
Published: September 2023

Abstract
Ultraviolet observations of ultrahot Jupiters, exoplanets with temperatures over 2000 K, provide us with an opportunity to investigate if and how atmospheric escape shapes their upper atmosphere. Near-ultraviolet transit spectroscopy offers a unique tool to study this process owing to the presence of strong metal lines and a bright photospheric continuum as the light source against which the absorbing gas is observed. WASP-189b is one of the hottest planets discovered to date, with a dayside temperature of about 3400 K orbiting a bright A-type star. We present the first near-ultraviolet observations of WASP-189b, acquired with the Colorado Ultraviolet Transit Experiment (CUTE). CUTE is a 6U NASA-funded ultraviolet spectroscopy mission, dedicated to monitoring short-period transiting planets. WASP-189b was one of the CUTE early science targets and was observed during three consecutive transits in 2022 March. We present an analysis of the CUTE observations and results demonstrating near-ultraviolet (2500–3300 Å) broadband transit depth (

1.08

−
0.08

+
0.08

%

) of about twice the visual transit depth indicating that the planet has an extended, hot upper atmosphere with a temperature of about 15,000 K and a moderate mass-loss rate of about 4 × 108 kg s−1. We observe absorption by Mg ii lines (R

p
/R

s
of

0.212

−
0.061

+
0.038

) beyond the Roche lobe at >4σ significance in the transmission spectrum at a resolution of 10 Å, while at lower resolution (100 Å), we observe a quasi-continuous absorption signal consistent with a “forest” of low-ionization metal absorption dominated by Fe ii. The results suggest an upper atmospheric temperature (∼15,000 K), higher than that predicted by current state-of-the-art hydrodynamic models.
ALMA Band-7 Flux Density Prediction of the Haumea Ring System for Ongoing Observations
Authors: Kalup Csilla E. , Kiss Csaba 
Published: September 2023

Abstract
In 2017, multi-chord occultation observations found a ring around the dwarf planet (136108) Haumea, and provided direct measurements of the size and an estimate of the apparent opacity of the ring system. Based on these properties, Müller et al. estimated the thermal contribution of Haumea’s ring at 20–500 μm. Here, we predict the flux densities of the ring of Haumea at ∼870 μm for ongoing measurements with ALMA.
Effect of LASER photobiomodulation on the cell viabilities of periodontal ligament fibroblasts of older and younger individuals – An in vitro study
Authors: Singh Aditi , Gururaj Soumya Bardvalli , Shankar Shrinidhi Maji , Chidambar Chethana Kunthur , Bhushan Kala , Poojary Bharathi 
Published: September 2023

Background and Objectives:
Fibroblasts form the major cell type of the periodontal ligament and most often studied for periodontal regeneration. The aim of the present study was to investigate the effects of photobiomodulation (PBM) on aged periodontal fibroblasts and compare the viability of periodontal fibroblasts of older and younger individuals.

Materials and Methods:
A total of 32 patients were divided into four groups: A, B, C, and D. Groups A and C and B and D comprised of extracted teeth of older (>60 year) and younger individuals (<25 year), respectively. Extracted teeth from Groups A and B received PBM, (diode laser, 660 nm, 100 mW at 4J) whereas Groups C and D did not. Tissue from extracted teeth of all groups was processed and cultured and subjected to 3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay to assess their viability.

Results:
The difference between the groups in terms of viability was significant (P < 0.0001). The mean viability of A and B (PBM) was 1.04 and 1.19, respectively. The mean viability for C and D (non-PBM) was 0.95 and 0.85, respectively.

Conclusion:
Older fibroblasts have lower viability than younger fibroblasts. PBM improves viability in both older and younger fibroblasts and more so in younger fibroblasts. However, more than one PBM would be required to sustain the effect longer.
Prévision des crues dans le bassin versant du Kou, Burkina Faso
Authors: Guelbeogo Sidiki , Ouedraogo Lucien , Ilboudo Sayouba 
Published: August 2023

Les inondations constituent un enjeu majeur du 21ème siècle. En effet, ces phénomènes imprévisibles ont pris une ampleur considérable ces dernières décennies, en grande partie à cause des effets du changement climatique. Ainsi, la compréhension de ces phénomènes est essentielle pour les décideurs locaux, car elle fournit des informations précieuses pour prévenir et gérer leurs conséquences. Cette étude propose donc une prévision des crues dans le bassin versant du Kou pour éclairer la décision publique. Pour cela, une approche mixte, combinant le système de modélisation hydrologique (HEC-HMS) et les systèmes d'information géographique (SIG), a été utilisée pour simuler les débits futurs du bassin versant. L'analyse du critère de Nash pour le calibrage et la validation du modèle a révélé des valeurs très satisfaisantes, atteignant respectivement 88,1 % et 82,6 %. Les prévisions indiquent que le bassin versant du Kou sera confronté à des épisodes de crues en 2025, 2031, 2042, 2044, 2047 et 2049. Ces résultats exigent des responsables et des décideurs du bassin versant du Kou qu'ils renforcent la protection des équipements de mesure des débits pour éviter leur emportement par les crues prévues, et qu'ils mettent en place des mesures structurelles capables de résister aux volumes importants simulés.

English title: Flood forecasting in the Kou watershed, Burkina FasoFloods are a major concern of the 21st century. These unpredictable phenomena have taken on a particularly significant dimension in recent decades, largely due to the effects of climate change. Therefore, understanding these phenomena is essential for local decision- makers, as it provides valuable information to prevent and manage their consequences. This study proposes a flood forecast in the Kou watershed to inform public decision-making. To achieve this goal, a mixed approach combining the Hydrologic Modeling System (HEC- HMS) and Geographic Information Systems (GIS) was used to simulate future flows in the watershed. Analysis of the Nash criterion for model calibration and validation revealed very satisfactory values, reaching 88.1% and 82.6% respectively. The forecasts indicate that the Kou watershed will experience flood episodes in 2025, 2031, 2042, 2044, 2047, and 2049. These results require Kou watershed officials and decision-makers to strengthen the protection of flow measurement equipment to prevent their removal by predicted floods, and to implement structural measures capable of withstanding the significant simulated volumes.
Impact de la production de charbon de bois sur les facteurs de changement climatique : synthèse de la littérature
Authors: Alawenon Kuassi N. , Wedjangnon Adigla Appolinaire , Ouinsavi Christine A. I. Nougbodé 
Published: August 2023

La carbonisation est une activité humaine impliquant de fortes pressions sur les forêts tropicales dans le présent contexte de changement climatique. Ce travail visait à faire une synthèse des études menées sur la séquestration de carbone et les émissions de gaz à effet de serre dues à la carbonisation. Pour ce faire, un ensemble d’équations de recherche a été mis en place avec des mots clés mis en combinaison avec des connecteurs booléens. L’équation prenant en compte des publications en français comme en anglais a été retenue. Le principal moteur de recherche utilisé est SCOPUS. Ainsi, l’analyse factuelle de 601 publications recensées faisait ressortir trois regroupements majeurs de recherche. Le premier traitait des sujets relatifs aux écosystèmes, aux changements observés, et différentes méthodes de séquestration du carbone. Le deuxième traitait de la carbonisation du bois et les émissions de CO2. Quant au troisième, les publications étaient plus orientées vers la recherche de solutions aux défis des changements climatiques. Cependant, des relations significatives étaient observées entre les groupes. Beaucoup d’efforts restent à faire en Afrique, surtout au Bénin, où très peu d’études renseignent sur le niveau de séquestration du carbone. Il serait donc intéressant d’ouvrir et d’approfondir les recherches dans ce sens.

English title: Impact of charcoal production on climate change factors: a review
Charcoal production is a human activity that involves intense pressures on tropical forests in the present context of climate change. This work aimed to make a synthesis of the studies carried out on carbon sequestration and greenhouse gas emissions due to charcoal production. For that, a set of search equations was set up with keywords put in combination with Boolean connectors. The equation that considered publications in both French and English was retained. The main search engine used is SCOPUS. Thus, the factual analysis of 601 publications surveyed highlights three major research groups. The first deals with subjects relating to ecosystems, the changes observed, and the different methods used in carbon sequestration. The second deals with charcoal production, and CO2 emissions. As for the third, the publications are more oriented towards searching for solutions to the challenges of climate change. However, significant relations between the groups can be observed. Much effort remains to be done in Africa, especially in a country like Benin, where very few studies provide information on the level of carbon sequestration. It would therefore be interesting to open and deepen research in this direction.
Gas Chromatography-Mass Spectrometry analysis of bioactive compounds of <i>Curcuma longa</i> leaves extract
Authors: Anekwe Ifeoma Ijeoma , Chikwendu Chinwe Ifenyinwa , Amadi Ekperechi Sabinus , Nwogwugwu Ngozi Ursulla , Ihenetu Francis Chukwuebuka 
Published: August 2023

Curcuma Longa (Turmeric) is a unique plant that combines the properties of a spice, colorant, cosmetic, and drug. As a medicinal plant, it is used by traditional healers in the treatment of ailments such as diabetic wounds, rheumatism arthritis, multiple sclerosis etc. This study was carried out to determine the presence of potential bioactive compounds present in Curcuma longa leaves. The bioactive compounds were extracted using the Soxhlet method of extraction and was analyzed using Gas Chromatography-Mass Spectrometry. The presence of eleven chemical constituents was identified in the GC-MS analysis of Curcuma longa leaves aqueous extract. This includes Cis-13- octadecenoic acid, methyl ester (28.40%), Cis- vaccenic acid (17.14%), Hexadecanoic acid, methyl ester (16.40%), n- Hexadecanoic acid (15.59%), Heptadecanoic acid, 16-methyl-, thylester (6.03%), Oleic Acid (6.02%) as well as compounds which were identified at low level. The GC-MS analysis of Curcuma longa leaves extract showed the presence of bioactive constituents which could have important medicinal properties. As a result, the presence of these bioactive constituents could be responsible for the therapeutic properties of the plant which can be used to develop new antimicrobials.
Composition chimique, profil en acides gras, criblage phytochimique et activité antioxydante <i>in vitro</i> des graines brutes de <i>Euphorbia heterophylla</i>, une source naturelle riche en Oméga-3
Authors: Toure Gouanin Larissa , Diete Souleymane Harouna , Zoue Lessoy Yves Thierry , Kouakou N’Goran David Vincent 
Published: August 2023

Euphorbia heterophylla est une plante adventice dont les graines sont consommées par certains animaux. Afin de déterminer la valeur nutritionnelle de ces graines brutes pour une éventuelle valorisation, cette étude a été menée. L’analyse phytochimique des graines a été réalisée selon les méthodes officielles. L’acide cyanhydrique a été dosé avec une solution de nitrate d’argent (AgNO3 ; 0,02 N). Les acides gras ont été déterminés par chromatographie en phase gazeuse. Les polyphénols et les flavonoïdes totaux ont été quantifiés par spectrophotométrie pendant que le potentiel du pouvoir antioxydant a été évalué par piégeage du radical libre 2,2-diphényl- 1-picrylhydrazyle. Il en résulte que les teneurs en acides gras polyinsaturés C18 : 2 n-6 et C18 : 3 n-3 étaient respectivement de 18 et 54% des acides gras totaux identifiés. La teneur en acide cyanhydrique était de 122,4±10,2 mg/kg. La quantification des polyphénols et des flavonoïdes totaux a donné respectivement 206 mg EQ/g d’extrait et 23 mg EAG/g d’extrait. La valeur moyenne de la concentration IC50 était de 60,84 µg/mL. Les principaux résultats révèlent que les graines de Euphorbia heterophylla possèdent une puissante activité antioxydante et qu’elles peuvent être utilisées comme source d’enrichissement des produits animaux et d’origine animale en acides gras oméga-3

English title: Chemical composition, fatty acid profile, phytochemical screening and in vitro antioxidant activity of raw seeds of Euphorbia heterophylla, a natural source rich in Omega-3
Euphorbia heterophylla is a weed whose seeds are consumed by some animals. In order to determine the nutritional value of these raw seeds for a possible valorization, this study was conducted. The phytochemical analysis of the seeds was carried out according to official methods. Hydrocyanic acid was determined with a silver nitrate solution (AgNO3; 0.02 N). Fatty acids were determined by gas chromatography. Total polyphenols and flavonoids were quantified by spectrophotometry while the antioxidant potential was evaluated by 2,2- diphenyl-1-picrylhydrazyl free radical scavenging. As a result, the contents of C18:2 n-6 and C18:3 n-3 polyunsaturated fatty acids were respectively 18 and 54% of the total fatty acids identified. The hydrocyanic acid content was 122.4±10.2 mg/kg. Quantification of total polyphenols and flavonoids gave 206 mg QE/g extract and 23 mg GAE/g extract, respectively. The mean IC50 value was 60.84 µg/mL. The main results reveal that Euphorbia heterophylla seeds possess potent antioxidant activity and can be used as a source of omega-3 fatty acid enrichment in animal and animal products
Cultivated and wild host plants associated with fruit flies (Diptera: Tephritidae) in three ecological zones of Togo
Authors: Gomina Mondjonnesso , Tchabi Atti , Nadio Nafadjara Abouwaliou , Tounou Agbéko Kodjo , Glitho Isabelle Adolé , Sanda Komla 
Published: August 2023

Fruit flies are a major constraint on the production and marketing of fruits and vegetables in Togo. It is important to master the bioecology of fruits flies before setting up a method for managing their populations effectively, sustainably, at low cost and with regard for environment health. In this context, this study was carried out to evaluate interaction between fruit flies and their respective host plants. Fruits and vegetables were sampled in 2019 in ecological zones III, IV and V in Togo. Fruits and vegetables incubation allowed to identify 15 host plants associated with 8 species of fruit flies belonging to the genera Bactrocera, Ceratitis, Dacus and Zeugodacus. Bactrocera dorsalis (Hendel) and Ceratitis cosyra (Walker) were the most abundant with respectively 47.51 and 46.03% of the 6858 flies recovered. The infestation rate of the mango by B. dorsalis ranged from 1.93 to 70.83 flies/kg of fruit. Among the 7 host plants associated with B. dorsalis, the mango was the most infested cultivated fruit and the African apple the most infested wild fruit (F = 3.077, df = 6, p = 0.008). This study expands the available database on the interactions between fruit flies and their hosts in Togo.
"Ho sabíeu, això?" La dislocació a la dreta en català
Authors: Mayol Laia 
Published: August 2023

The goal of this paper is to describe right-dislocation in Catalan from a quantitative and qualitative corpus. Right-dislocation is the non-canonical construction in which a pronoun in the main clause is coreferential with a final noun phrase. Although right-dislocation is very frequent in Catalan, especially in oral language, it has been little studied. The corpus consists of 93 right-dislocations, coded according to three parameters. The main focus of analysis is the type of information found in right-dislocation and the motivations for this construction. The analysis compares right-dislocation with other rhetorical alternatives that the speaker might have used to convey the same information: a sentence with a pronoun and without a displaced constituent or a sentence with a canonical order. I argue that right-dislocation in Catalan is a means to structure information and to create the necessary pragmatic and semantic effects needed in the context.
Keywords: Catalan, pragmatics, right dislocation, information packaging, information structure.
The Effect of Talent Management and Perceived Organizational Support on Employee Retention Mediated by Organizational Commitment
Authors: Sitaniapessy Susan Sabrina , Armanu Armanu , Kurniawati Desi Tri 
Published: August 2023

This study examines the effect of talent management and perceived organizational support on the employee retention at Bank Jatim KC Kepanjen through mediating organizational commitment. This study uses saturated sampling. Primary data was obtained by distributing questionnaires to 143 employees. Data analysis used partial least square (SEM-PLS) structural equation modeling with Smart-PLS 3.0 application. The results show that talent management had no significant effect on employee retention and perceived organizational support had a positif and significant effect on employee retention. This study also found that organizational commitment is able to mediate the effect of talent management and perceived organizational support on employee retention. From these findings, it was concluded that talent management is not able to significantly increase employee retention but talent management is able to increase employee retention through increased organizational commitment. Furthermore, increasing perceived organizational support can improve employee retention.
Fãs e heróis em narrativas digitais: autoridade, identidade e formação
Authors: Pereira Marcia Ferreira Torres , Zuin Antonio Alvaro Soares 
Published: September 2023

Este artigo discorre sobre a cultura digital e sua relação com a formação humana, segundo os princípios da Teoria crítica da sociedade. Após investigação de produções cientificas que estudam cultura digital reconhecidas pelo Banco de teses e dissertações da CAPES, entre 2010 e 2020, chamou a atenção a concentração das pesquisas na área da Comunicação em relação a área da Educação e as distintas relações de autoridade. Diante dessa produção observou-se que narrativas literárias digitais se destacam nas plataformas digitais e a mais conhecida no Brasil é a Spirit Fanfics, considerada como espaço significativo para o investimento de editoras e produção de videos e filmes. A partir das leituras de diferentes narrativas dessa plataforma, observou-se que os produtores ou autores dos textos se identificam como fãs de “heróis”, considerados como figuras de autoridade em diferentes gêneros literários. A autora e o autor desse artigo tiveram como objetivo refletir sobre os dados da relação fâ e herói das narrativas mais recentes do ano de 2021 da Plataforma Spirit Fanfics produzidas no Brasil para serem analisadas. A reflexão considerou a formação dos sujeitos em relação aos efeitos da cultura digital diante da promessa de vivência real dos consumidores de seus produtos.
Palavras-chave: Cultura digial; Autoridade; Narrativas literárias.
HUBUNGAN ANTARA KEMAMPUAN BERKOMUNIKASI GURU DENGAN MOTIVASI BELAJAR SISWA KELAS V SD SWASTA BAKTI LUHUR
Authors: Tobing Panni Ance Lumban , Nainggolan Maria Friska , Silalahi Mery , Simarmata Ratna 
Published: September 2023

Penelitian ini bertujuan untuk mengetahui apakah terdapat hubungan yang signifikan antara hubungan kemampuan berkomunikasi guru dengan motivasi belajar siswa. Penelitian ini dilaksanakan di SD Swasta Bakti Luhur. Penelitian ini mengambil seluruh populasi yang ada menjadi sampel dalam penelitian, total sampling sebanyak 40 orang siswa dari kelas VA dan VB. Berdasarkan pengkategorian skor rata-rata untuk variabel X (komunikasi guru) adalah 45,80 dan untuk skor rata-rata variabel Y (motivasi belajar) adalah 54,05. Skor tertinggi untuk variabel komunikasi guru adalah 56 dan skor tertinggi untuk variabel motivasi belajar siswa adalah 63.Melalui uji korelasi yang dilakukan diperoleh koefisiensi korelasi 0,478. Kemampuan berkomunikasi guru dengan motivasi belajar siswa memiliki nilai rxy/rhitung 0,538 lebih besar dari rtabel 0,312 dan diperoleh nilai signifikansi sebesar 0,00 lebih kecil dari 0,05 (0,00 < 0,05). Berdasarkan hasil tersebut, maka Ha diterima dan Ho ditolak. Sehingga dapat disimpulkan bahwa terdapat hubungan yang antara kemampuan berkomunikasi guru dengan motivasi belajar siswa kelas V SD Swasta Bakti Luhur Medan.