bluuebunny/crossref_metadata_2025_split huggingface dataset:
PERAN PEMERINTAH DAERAH DALAM PEMBANGUNAN INFRASTRUKTUR JALAN DI KOTA BATAM
Authors: Wahyuningsih Novi , Lodan Karol Teovani , Dompak Timbul , Salsabila Lubna 
Published: June 2024

As a government that has a very strategic authority and position related to its obligations as a "public service" to improve the welfare, prosperity, security and peace of society, regional governments have a very important role in regional development planning. Regional governments in this case must carry out their main tasks which of course must be adjusted to the vision, mission, goals and objectives that will be achieved later. Development is a complex process that requires significant changes in social structures, cultural values, and institutional frameworks to promote faster economic growth, reduce income disparities, and eradicate poverty. Apart from roads, trucks, cable cars and trains, roads are all road elements protected by land transportation infrastructure, including supporting buildings and traffic instruments that are above ground and above water. This scientific work was written using descriptive techniques. This approach can be described as a critical thinking methodology that involves reading articles or other items. In accordance with Law Number 23 of 2014, autonomous regional governments led by regional heads are organized by regional governments. One of the cities or districts in the Riau Islands Province that is still developing is Batam City. Regional governments are still concerned and monitoring infrastructure development. During the Covid-19 epidemic, environmental and meteorological conditions, obstacles and the process of road infrastructure development also occurred. However, considering the existing challenges and setbacks, this can be used as a basis for review and improvement in preparing for the next phase of regional government growth. Therefore, these difficulties do not become a challenge for local governments during the development process; instead, it can be taken into account later.

Keywords: Local Government; Development; Infrastructure
Atmospheric Limitations for High-frequency Ground-based Very Long Baseline Interferometry
Authors: Pesce Dominic W. , Blackburn Lindy , Chaves Ryan , Doeleman Sheperd S. , Freeman Mark , Issaoun Sara , Johnson Michael D. , Lindahl Greg , Natarajan Iniyan , Paine Scott N. , Palumbo Daniel C. M. , Roelofs Freek , Tiede Paul 
Published: June 2024

Abstract
Very long baseline interferometry (VLBI) provides the highest-resolution images in astronomy. The sharpest resolution is nominally achieved at the highest frequencies, but as the observing frequency increases, so too does the atmospheric contribution to the system noise, degrading the sensitivity of the array and hampering detection. In this paper, we explore the limits of high-frequency VLBI observations using ngehtsim, a new tool for generating realistic synthetic data. ngehtsim uses detailed historical atmospheric models to simulate observing conditions, and it employs heuristic visibility detection criteria that emulate single- and multifrequency VLBI calibration strategies. We demonstrate the fidelity of ngehtsim’s predictions using a comparison with existing 230 GHz data taken by the Event Horizon Telescope (EHT), and we simulate the expected performance of EHT observations at 345 GHz. Though the EHT achieves a nearly 100% detection rate at 230 GHz, our simulations indicate that it should expect substantially poorer performance at 345 GHz; in particular, observations of M87* at 345 GHz are predicted to achieve detection rates of ≲20% that may preclude imaging. Increasing the array sensitivity through wider bandwidths and/or longer integration times—as enabled through, e.g., the simultaneous multifrequency upgrades envisioned for the next-generation EHT—can improve the 345 GHz prospects and yield detection levels that are comparable to those at 230 GHz. M87* and Sgr A* observations carried out in the atmospheric window around 460 GHz could expect to regularly achieve multiple detections on long baselines, but analogous observations at 690 and 875 GHz consistently obtain almost no detections at all.
Rotational Evolution of Classical T Tauri Stars: Models and Observations
Authors: Serna Javier , Pinzón Giovanni , Hernández Jesús , Manzo-Martínez Ezequiel , Mauco Karina , Román-Zúñiga Carlos G. , Calvet Nuria , Briceño Cesar , López-Valdivia Ricardo , Kounkel Marina , Stringfellow Guy S. , Stassun Keivan G. , Pinsonneault Marc , Adame Lucia , Cao Lyra , Covey Kevin , Bayo Amelia , Roman-Lopes Alexandre , Nitschelm Christian , Lane Richard R. 
Published: June 2024

Abstract
We developed a grid of stellar rotation models for low-mass and solar-type classical T Tauri stars (CTTS; 0.3M
⊙ < M
* < 1.2M
⊙). These models incorporate the star–disk interaction and magnetospheric ejections to investigate the evolution of the stellar rotation rate as a function of the mass of the star M
*, the magnetic field (B
*), and stellar wind (

M

̇

wind

). We compiled and determined stellar parameters for 208 CTTS, such as projected rotational velocity

v
sin
(
i
)

, mass accretion rate

M

̇

acc

, stellar mass M
*, ages, and estimated rotational periods using Transiting Exoplanet Survey Satellite (TESS) data. We also estimated a representative value of the mass-loss rate for our sample using the [O i] λ 6300 spectral line. Our results confirm that

v
sin
(
i
)

measurements in CTTS agree with the rotation rates provided by our spin models in the accretion-powered stellar winds picture. In addition, we used the approximate Bayesian computation technique to explore the connection between the model parameters and the observational properties of CTTS. We find that the evolution of

v
sin
(
i
)

with age might be regulated by variations in (1) the intensity of B
* and (2) the fraction of the accretion flow ejected in magnetic winds, removing angular momentum from these systems. The youngest stars in our sample (∼1 Myr) show a median branching ratio

M

̇

wind

/

M

̇

acc

∼
0.16

and median B
* ∼ 2000 G, in contrast to ∼0.01 and 1000 G, respectively, for stars with ages ≳3 Myr.
Investigation of [KSF2015] 1381-19L, a WC9-type Star in the High-extinction Galactic Region
Authors: Kar Subhajit , Das Ramkrishna , Baug Tapas 
Published: June 2024

Abstract
We report on a multiwavelength study of the Wolf–Rayet star [KSF2015] 1381-19L, which is located in the solar metallicity region (Z = 0.014) of the Milky Way, strongly obscured by interstellar dust. We perform a detailed characterization of the stellar atmosphere by fitting the spectral emission lines observed in the optical and near-infrared (NIR) bands, using CMFGEN. The best-fitted spectroscopic model indicates a highly luminous (105.89
L
⊙) star with a large radius (15 R
⊙) and effective temperature, wind terminal velocity, and chemical composition similar to those of Galactic WC9-dusty (WC9d)-type stars. The atmospheric ionization structure shows coexisting ionization states of different elements, simultaneously affecting the opacity and thermal electron balance. Fitting of the spectral energy data reveals high interstellar optical extinction (A

V
= 8.87), while the IR extinction is found to be comparatively lower (

A

K

s

=
0.98

). We do not detect any excess emission at NIR wavelengths due to dust. Upon comparison of our results with the GENEVA single-star evolutionary models (Z = 0.014), we identify the best possible progenitors (a rotating star of 67 M
⊙ and a nonrotating star of 90 M
⊙).
The Relation between the Cool-core Radius and the Host Galaxy Clusters: Thermodynamic Properties and Cluster Mass
Authors: Ng FanLam , Ueda Shutaro 
Published: June 2024

Abstract
We present a detailed study of cool-core systems in a sample of four galaxy clusters (RXCJ1504.1-0248, A3112, A4059, and A478) using archival X-ray data from the Chandra X-ray Observatory. Cool cores are frequently observed at the centers of galaxy clusters and are considered to be formed by radiative cooling of the intracluster medium (ICM). Cool cores are characterized by a significant drop in the ICM temperature toward the cluster center. We extract and analyze X-ray spectra of the ICM to measure the radial profiles of the ICM thermodynamic properties, including temperature, density, pressure, entropy, and radiative cooling time. We define the cool-core radius as the turnover radius in the ICM temperature profile and investigate the relation between the cool-core radius and the properties of the host galaxy clusters. In our sample, we observe that the radiative cooling time of the ICM at the cool-core radius exceeds 10 Gyr, with RXCJ1504.1-0248 exhibiting a radiative cooling time of

32

−
11

+
5

Gyr at its cool-core radius. These results indicate that not only radiative cooling but also additional mechanisms, such as gas sloshing, may play an important role in determining the size of cool cores. Additionally, we might find that the best-fit relation between the cool-core radius and the cluster mass (M
500) is consistent with a linear relation. Our findings may suggest that cool cores are linked to the evolution of their host galaxy clusters.
Properties of Galactic B[e] Supergiants. X. Refined Orbit and Fundamental Parameters of the HD 327083 Binary System
Authors: Nodyarov A. S. , Miroshnichenko A. S. , Khokhlov S. A. , Zharikov S. V. , Agishev A. T. , Gabitova I. A. , Vaidman N. L. , Manset N. 
Published: June 2024

Abstract
HD 327083 is a binary system that consists of two supergiant components and exhibits the B[e] phenomenon. In this paper, we report the determination of a new set of the system’s fundamental parameters using a combination of photometric and spectroscopic data as well as the Gaia EDR3 distance. We found that the orbital period of the system is 107.68 ± 0.02 days. The spectral line content implies the effective temperatures of ≈7000 K and 25,400 ± 1400 K, while the photometric variations are consistent with the radii of ≈106 R
⊙ and ≈10 R
⊙ for the cool and hot components, respectively. The absorption lines of the cool component show a radial velocity semiamplitude of 48.3 ± 1.7 km s−1, similar to that of the emission lines that originate around the hot component. The inclination of the system to the line of sight is

47

−
20

+
17

°. Modeling of the system's evolutionary history suggests that the components have masses of ∼12.5 M
⊙ and currently undergo mass transfer between them. This configuration, which takes in heating of the surface of the cool component by the radiation from the hot one, can reproduce the photometric and spectroscopic data and is in agreement with previous infrared observations of the circumbinary disk. The results of this study further confirm the hypothesis that the reason for the presence of the B[e] phenomenon in most objects is a consequence of the evolution of various binary systems.
USmorph: An Updated Framework of Automatic Classification of Galaxy Morphologies and Its Application to Galaxies in the COSMOS Field
Authors: Song Jie , Fang GuanWen , Ba Shuo , Lin Zesen , Gu Yizhou , Zhou Chichun , Wang Tao , Hao Cai-Na , Liu Guilin , Zhang Hongxin , Yao Yao , Kong Xu 
Published: June 2024

Abstract
Morphological classification conveys abundant information on the formation, evolution, and environment of galaxies. In this work, we refine a two-step galaxy morphological classification framework (USmorph), which employs a combination of unsupervised machine-learning and supervised machine-learning techniques, along with a self-consistent and robust data-preprocessing step. The updated method is applied to galaxies with I
mag < 25 at 0.2 < z < 1.2 in the COSMOS field. Based on their Hubble Space Telescope/Advanced Camera for Survey I-band images, we classify them into five distinct morphological types: spherical (SPH, 15,200), early-type disk (17,369), late-type disk (21,143), irregular disk (IRR, 28,965), and unclassified (UNC, 17,129). In addition, we have conducted both parametric and nonparametric morphological measurements. For galaxies with stellar masses exceeding 109
M
☉, a gradual increase in effective radius from SPHs to IRRs is observed, accompanied by a decrease in the Sérsic index. Nonparametric morphologies reveal distinct distributions of galaxies across the Gini−M
20 and C−A parameter spaces for different categories. Moreover, different categories exhibit significant dissimilarity in their G
2 and Ψ distributions. We find morphology to be strongly correlated with redshift and stellar mass. The consistency of these classification results with expected correlations among multiple parameters underscores the validity and reliability of our classification method, rendering it a valuable tool for future studies.
Intangibilité des frontières versus droit à l’autodétermination
Authors: Dumont Gérard-François 
Published: June 2024

Au cours de l’histoire contemporaine, le processus d’élaboration d’un droit international a consacré deux principes : celui du droit des peuples à disposer d’eux-mêmes a été inscrit dans la Charte de l’ONU de 1945, tandis que celui de l’intangibilité des frontières a été affirmé par la jurisprudence internationale et mis en œuvre lors de grands soubresauts géopolitiques (décolonisation, implosion des régimes communistes, accords mettant fin aux guerres de l’ex-Yougoslavie…). Toutefois, ces deux principes sont appliqués à géométrie variable, notamment parce qu’ils s’avèrent contradictoires. L’exemple du Caucase du Sud, avec l’évolution du conflit concernant le Haut-Karabagh, et en conséquence l’Arménie et l’Azerbaïdjan, permet d’illustrer tout particulièrement les questions géopolitiques passées, actuelles et futures que posent ces deux principes.
Le développement
Authors: Thiriet Adeline 
Published: June 2024

Le cadre sous contrainte demande au psychologue de repenser sa pratique. C’est notamment vrai dans le cadre de la mesure judiciaire d’investigation éducative qui, ordonnée par le magistrat, contraint le mineur et sa famille à nous rencontrer. Les rencontres prennent alors une coloration particulière, car sous le joug d’une instance judiciaire. De fait, comment le psychologue articule-t-il sa pratique ? La rencontre est-elle réellement possible ?
Cinéma et imaginaire topographique
Authors: Meynier Fabien 
Published: June 2024

Définir les contours d’un « imaginaire topographique » qui préside aux modalités de descriptions de lieux au sein d’une multitude de productions culturelles : telle est l’ambition de cet ouvrage. À travers l’analyse de trois œuvres considérées comme des jalons dans le développement de cet imaginaire, celles de John Ford, de Jean-Marie Straub et Danièle Huillet et de Tariq Teguia, l’objectif est de saisir la façon dont les cinéastes s’inscrivent dans certaines traditions iconographiques liées aux représentations topographiques, tout en inventant de nouvelles images des lieux qu’ils enregistrent. La prise en compte de ces lieux ainsi que de la longue durée dans les analyses de films permet de porter un regard nouveau sur des œuvres déjà connues et de saisir leurs relations avec des films plus contemporains, à travers un problème d’image spécifique, celui de l’invention de lieux proprement filmiques.
La veu poètica de Blai Bonet: Comèdia (1960)
Authors: Zimmermann Marie-Claire 
Published: June 2024

Dans Comèdia, livre de poèmes que le majorquin Blai Bonet (1926-1997) publie en 1960, surgit un nouveau locuteur, différent de celui qui intervenait dans les trois recueils précédents, car il est marqué par l'histoire de l'après-guerre, soucieux des relations entre la Catalogne et l'Espagne. Le thème religieux, surtout christique, se maintient et s'enrichit. Le moi est essentiellement poète, d'où l'importance du métalangage, une pratique originale du vers et des figures, un usage subtil et déconcertant de l'humour.
In Vitro Assessment of the Fracture Resistance of Different Prosthodontic Materials for Fixed Dental Prostheses
Authors: Sultan Sherif El Sayed , Almuhyi Nawaf Hussain Saif , Alzabni Khalid Maziad , Alruwaili Rayan Hamad Qubayl 
Published: June 2024

ABSTRACT

Background:
Fixed dental prostheses (FDPs) are commonly used in prosthodontics to restore missing teeth and improve oral function and esthetics. The selection of prosthodontic materials significantly impacts the fracture resistance of FDPs, thus influencing their clinical success. This study aimed to assess the fracture resistance of different prosthodontic materials commonly used in FDPs through in vitro testing.

Materials and Methods:
Thirty standardized FDP specimens were fabricated using three different materials: Monolithic zirconia, heat press lithium disilicate, and metal ceramic. Each group consisted of ten specimens. The specimens were subjected to standardized loading using a universal testing machine until fracture occurred. Fracture resistance values were recorded in Newtons (N) and statistically analyzed using one-way analysis of variance (ANOVA) followed by post-hoc Tukey tests.

Results:
The mean fracture resistance values for the three materials were as follows: zirconia, 1450 N; lithium disilicate, 1200 N; and metal ceramic, 950 N. Statistical analysis revealed a significant difference among the groups (P < 0.05). Post hoc Tukey tests indicated that zirconia exhibited significantly higher fracture resistance compared to lithium disilicate and metal ceramic (P < 0.05). However, there was no significant difference in fracture resistance between lithium disilicate and metal-ceramic groups (P > 0.05).

Conclusion:
Within the limitations of this in vitro study, zirconia demonstrated the highest fracture resistance among the tested materials for FDPs, followed by lithium disilicate and metal ceramic. The findings highlight the importance of material selection in achieving optimal clinical outcomes and longevity of fixed dental prostheses.
Physicochemical and Bacteriological Characteristics of Groundwater in Rumuigbo, Obio-Akpor Local Government Area of Rivers State, Nigeria
Authors: Amadi Nyemenuche Kenneth , Peekate Lekiah Pedro , Wemedo Samuel Amadi 
Published: June 2024

Water is one of the most important and abundant compounds on earth, and it is vital to the survival of all life forms. Groundwater is the most utilized in the southern part of Nigeria. Many groundwater extraction boreholes exist in Rumuigbo, Obio-Akpor Local Government Area of Rivers State, Nigeria. This study was carried out to assess the physicochemical and bacteriological characteristics of groundwater in the communities within Rumuigbo. Water samples were collected from groundwater extraction boreholes in the four communities within Rumuigbo: Omoi/Orosi, Nkpolu, Mgbuadu, and Mgbu-Esilaru. The samples were analyzed for Electrical conductivity (EC), salinity, pH, turbidity, nitrate, phosphate, iron, lead, zinc, total heterotrophic bacterial population (THBP), Vibrio, Shigella, and Salmonella populations using standard physicochemical and bacteriological methods. The results showed that EC of the groundwater in the four communities was 3.74±0.38 to 17.08±1.03 μS/cm; salinity was 1.02±0.01 to 1.66±0.54 mg/L; pH was 5.94±0.01 to 6.95±0.23; turbidity was 0.04±0.01 to 0.05±0.02 NTU; nitrate was 0.46±0.06 to 0.71±0.02 mg/L; phosphate was 2.85±0.03 to 3.34±0.15 mg/L; iron was 2.34±0.55 to 6.74±0.08 mg/L; lead was 0.18±0.04 to 0.40±0.14 mg/L; and zinc was 0.40±0.06 to 3.91±0.13 mg/L; THBP was 1.8±2.6 to 3.4±3.2 ×102 CFU/ml. There were no Vibrio and Shigella in the groundwater samples, except in one sampling point in the Mgbu-Esilaru and Mgbu-adu communities, respectively. The bacteria identified include Proteus, Bacillus, Micrococcus, Pseudomonas, Salmonella, Erythrobacter, and Klebsiella species. It is revealed that groundwater from the communities fulfills some of the requirements for portable drinking water but does not meet the standards for iron, lead, zinc, and Salmonella. Some form of groundwater treatment from the communities is required to meet all the requirements for potable drinking water.
Effects of Azanza garckeana Fruit Pulp on Metabolic Syndrome in Wistar Rats Fed on High Fructose Diet
Authors: Iloabuchi Godian C , Idoko Ali Siddiq , Hannafi Aliyu Muhammad , Ganiyu Aderounmu Ibrahim , Umar Sabiu 
Published: June 2024

The excessive consumption of high-energy dietary sweeteners is largely to blame for the widespread metabolic syndrome around the world. This study is aimed at in vivo evaluations of the ameliorative effects of A. garckeana fruit pulp on metabolic syndrome in Wistar rats. Twenty-four (24) adult male Wistar rats were divided into six (6) groups (n=4). Groups A, B, and C received standard, high-fructose, and 2% A. garckeana fruit pulp-supplemented standard diets, respectively. Groups D, E, and F were fed 5% A. garckeana fruit pulp-supplemented standard, 2% A. garckeana fruit pulp-supplemented high-fructose, and 5% A. garckeana fruit pulp-supplemented high fructose diets. In addition to weekly monitoring of weight changes, activities of serum antioxidant enzymes, lipid profile, and blood glucose level were determined. There were no significant changes in weight gain among the groups throughout the experimental period. Compared with the initial value of blood glucose level, only the group fed high fructose diet had significantly (P<0.05) higher blood glucose levels at the end of the experiment. The group fed 5% A. garckeana fruit pulp-supplemented high-fructose diet had significantly (P<0.05) higher serum concentration of total cholesterol and HDL-cholesterol in comparison with the control. The groups fed A. garckeana fruit pulp-supplemented diets had significantly (P<0.05) higher albumin concentrations than the group fed high fructose diet. The serum urea concentration was significantly (P<0.05) lower in the group fed 2% A. garckeana fruit pulp-supplemented high fructose diet when compared with the control. The group fed 5% A. garckeana fruit pulp-supplemented high fructose diet had significantly (P<0.05) higher activities of SOD and GSH activities compared with the group fed high fructose diet. Also, the group fed 2% A. garckeana fruit pulp-supplemented high fructose diet had significantly (P<0.05) higher activities of CAT when compared with the group fed high fructose diet. It can be concluded that A. garckeana fruit pulp has anti-hyperglycemic, anti-dyslipidemic, and antioxidant effects, which could be responsible for its ameliorative effects on metabolic syndrome.
Entomocidal Effect of Some Essential Oils: An alternative for Synthetic Pesticides in the Control of Dermestes maculatus Degeer 1774 (Coleoptera: Dermestidae)
Authors: Nasiru Abbati , Suleiman Mohammed 
Published: June 2024

Realizing the detrimental effect of synthetic pesticides on the environment, non-target organisms and human health. The scientific community's interest in searching for and providing safe, natural and effective pesticides Using the residual contact approach, the essential oils of Thymus vulgaris L. and Syzygium aromaticum L. (TEO and EOSA) were assessed against Dermestes maculatus in a laboratory setting. Steam distillation was used to extract the oils. Four concentrations (2.5, 5, 7.5, and 10%) were prepared using acetone as a solvent and applied individually to 15 g of smoke-dried C. gariepinus. For five days, newly emerged adults, third-instar larvae, and newly laid pest eggs were exposed to the treated fish samples. The results showed that both oils had varying larvicidal and adulticidal activities against D. maculatus. Similarly, the EOs significantly decreased the pest's ability to lay eggs and hatch. EOSA was the most effective treatment in all cases; it had the lowest LC50 and LT50 and the most effects at all dosages. Consequently, EOSA and TEO could manage D. maculatus infesting smoke-dried C. gariepinus.