ALMA-IMF

Context. The ALMA-IMF Large Program imaged 15 massive protoclusters down to a resolution of ~2 kau scales, identifying about 103 star-forming cores. The mass and luminosity of these cores, which are fundamental physical characteristics, are difficult to determine, a problem greatly exacerbated at the distances ≥2 kpc of ALMA-IMF protoclusters. Aims. We combined new datasets and radiative transfer modeling to characterize these cores. We estimated their mass-averaged temperature and the masses these estimates imply. For one-sixth of the sample, we measured the bolometric luminosities, implementing deblending corrections when necessary. Methods. We used spectral energy distribution (SED) analysis obtained with the point process mapping (PPMAP) Bayesian procedure, which aims to preserve the best angular resolution of the input data. We extrapolated the luminosity and dust temperature images provided by PPMAP at 2.5″ resolution to estimate those of individual cores, which were identified at higher angular resolution. To do this, we applied approximate radiative transfer relationships between the luminosity of a protostar and the temperature of its surrounding envelope and between the external heating of prestellar cores and their temperatures. Results. For the first time, we provide data-informed estimates of dust temperatures for 882 cores identified with ALMA-IMF: 17–31 K and 28–79 K (5th and 95th percentiles, up to 127 K) for the 616 prestellar and 266 protostellar cores, respectively. We also measured protostellar luminosities spanning 20–80 000 L⊙. Conclusions. Dust temperatures previously estimated from SED-based analyses at a comparatively lower resolution validate our method. For hot cores, on the other hand, we estimated systematically lower temperatures than studies based on complex organic molecules. We established a mass-luminosity evolutionary diagram, for the first time at the core spatial resolution and for a large sample of intermediate- to high-mass protostellar cores. The ALMA-IMF data favor a scenario in which protostars accrete their mass from a larger mass reservoir than their host cores

La canine : traitement par substitution

Dans les situations cliniques d’agénésie d’incisive latérale maxillaire, le praticien est placé face à une décision thérapeutique complexe. Le principe est d’abandonner une attitude dogmatique, pour adopter une attitude pragmatique. Un bilan complet pluridisciplinaire est systématique. Les facteurs liés au patient s’ajoutent à l’évaluation des éléments morphologiques, fonctionnels, esthétiques, pour en tirer un diagnostic et estimer un pronostic. Le patient est associé dans une décision thérapeutique partagée, ce qui favorise son adhésion, diminue le risque de conflits décisionnels, et améliore son niveau de satisfaction à long terme. La solution de substitution canine permet de respecter les principes de fonctions de calage, centrage et guidages décrits par Orthlieb. L’ objectif est de choisir la meilleure solution pour la vie du patient, soit en utilisant les dents naturelles dans la zone esthétique, soit avec des solutions prothétiques de longue durée. Quelle que soit l’option retenue, elle sera conduite avec une bonne communication interdisciplinaire, et une planification adaptée

Low Heat Input CMT Welding: A Study on Microstructure, Strength, and Corrosion Behavior in Dissimilar Weldments

The low arc heat input welding process can reduce the amount of heat energy required to join the weld metals to produce the desired structures resulted in lower heat-affected zone width, good penetration depth and proper bead geometry formation. In this research, the cold metal transfer welding process was utilized to join the dissimilar plates of AA62082 and AA7075 base metals with ER2219 filler wire. Lower welding currents were used to join the 6 mm thick plate in single pass without any defects. The macro and bead properties were taken from the optical microscope along with their structural changes at various zones of weldment. The standard tensile testing was carried out for three samples using universal testing machine. Cyclic sweep test was conducted on weld surface area to study the corrosion resistance in alcoholic environment. The results obtained from this research work presented and discussed in detailed by comparing other welding technique

Pour une thérapeutique active des personnes souffrant de psychoses : psychanalyse et psychothérapie institutionnelle à La Borde et dans la cité en 2025

Comme l’ensemble de nos concitoyens, les malades souffrant de psychose pâtissent de la prévalence de leur valeur marchande sur leur valeur humaine dans l’organisation des champs sanitaires, médico-sociaux et sociaux. La psychiatrie est restreinte par la fongibilité promue par la Loi Organique relative aux Lois de Finance en 2001. Ce tournant anthropologique promeut une organisation des flux de personnes usagers ou professionnels et néglige dans sa formalisation le désir singulier de chacun. À La Borde et dans le Mouvement de Psychothérapie Institutionnelle le cheminement singulier est privilégié. La création d’une approche collective y respecte la structuration psychique dans un champs psychothérapique de paroles où s’ouvre pour chacun la possibilité de nouvelles inscriptions par la possibilité de créer des ambiances propices à la manifestation d’événements et d’accès à des espaces du dire. Soutenir le sentiment continu d’exister est une priorité. À cette fin, une topologie existentielle structurante peut résulter du champ transférentiel généralisé par ce que Jean Oury nomme « Collectif » accueillant les logiques de l’Inconscient

Depolarization and polarization transfer rates for the C

Context. This paper is a continuation of a series of studies that investigated the collisional depolarization of solar molecular lines such as those of MgH, CN and C2. It is focused on the solar molecule C2, which exhibits striking scattering polarization profiles, although its intensity profiles are inconspicuous and barely visible. The current interpretation of the C2 polarization in terms of magnetic fields is incomplete because collisional data are almost completely lacking. Aims. We accurately compute the collisional depolarization and polarization transfer rates for the C2(X1Σg+,α3Πu) by isotropic collisions with hydrogen atoms H (2S l/2). We also investigate the solar implications of our findings. Methods. We used the package MOLPRO to obtain potential energy surfaces for the electronic states X1Σg+ and a3Πu of C2, and the code MOLSCAT to study the quantum dynamics of the C2(X1Σg+,α3Πu) + H(2S1/2) systems. We used the tensorial irreducible basis to express the resulting collisional cross sections and rates. Furthermore, sophisticated genetic programming techniques were employed to determine analytical expressions for the temperature and total molecular angular momentum dependence of these collisional rates. Results. We obtained quantum depolarization and polarization transfer rates for the C2(X1Σg+,α3Πu) + H(2S1/2) collisions in the temperature range T = 2000−15 000 K. We also determined analytical expressions that write these rates as functions of the temperature and total molecular angular momentum. In addition, we show that isotropic collisions with neutral hydrogen can only partially depolarize the lower state of the C2 lines. This highlights that the approximation of neglecting lower-level polarization is limited in modeling the polarization of C2 lines. Conclusions. Isotropic collisions with neutral hydrogen atoms are a fundamental ingredient for understanding C2 polarization

Characterization of Cultural and Creative Industries: The Case of Tijuana-Ensenada, B.C.

Since the latter half of the 20th century, the concepts of cultural industry and creative economies have become increasingly prominent in specialized literature and its popular dissemination. Two reasons explain this: first, the role played by the intangibles of knowledge and creativity in these industries and the broader economy, and second, the importance of these industries for economic and social development in many regions. In Mexico, the last two decades have begun to see a cultural and creative pole emerge in the cities of Ensenada and Tijuana, in Baja California. First came the region’s wine industry, which boasts a history going back two centuries. This was later coupled with the development of local gastronomy, with Ensenada named UNESCO Creative City of Gastronomy in 2015. Lastly, a substantial craft beer industry has become established in Baja California’s most populated areas, driven by the boom in the industry in California, USA. Thus, Ensenada-Tijuana has the potential to become a cultural and creative pole, but there is insufficient information available to estimate this potential. Mapping the CCIs in the region is therefore a considerable challenge. Against this backdrop, this research offers an initial situational analysis of the ecosystem of creative industries in Ensenada and Tijuana, Mexico, with a focus on youth inclusion processes. The industry mapping methodology proposed by Colombia’s National Consulting Center (CNC) (2019) was used as the basis to design a survey for young creatives, which included 15 items aimed at identifying the main areas of interest and the creative disciplines that young people are engaged in, as well as the challenges and opportunities they encounter in these industries. This project constitutes an initial characterization of the CCIs in the cities of Ensenada and Tijuana, classifying the young creatives in this ecosystem and identifying the primary economic activities in the sector

Distribution and types of negative human-orangutan interactions in Kalimantan based on news articles

Interaction between humans and orangutans can hurt both parties. Crop losses and heightened fear and anxiety among local communities due to orangutan presence often contribute to negative perceptions, which may influence actions towards these primates. Additionally, limited public awareness regarding the risks of keeping orangutans as pets can elevate the potential for zoonotic disease transmission. Habitat loss caused by deforestation and the conversion of forests to agricultural or anthropogenic-used land exacerbates the risk of human-orangutan encounters in Kalimantan. Consequently, understanding these interactions’ trends and spatial distribution is essential for devising strategic interventions to mitigate the conflict. Using web scraping methods, we collected article data from various Indonesian news sources from 2011 to 2024. 172 human and orangutan negative interactions were documented and categorized into six types: orangutan sightings, attacks, crop damage/raiding, hunting, capture, and orangutan rearing. These interactions occurred across 125 villages from 28 districts/cities in Kalimantan. Most incidents were reported in settlement areas (35%) and plantations (45%). Orangutans have also been sighted in public places, such as airports and harbors, over the past 5 years. Given the broad distribution of these interactions, coordinated efforts among multiple stakeholders are crucial for mitigating and managing human-orangutan conflicts as part of broader Bornean orangutan conservation initiatives

Genetic insights: PCR-based sex verification of Limousin bull (

The determination of spermatozoa sex is a strategic step in the development of artificial insemination technology. The method of separating spermatozoa carrying female (X) or male (Y) sex chromosomes using Bovine Serum Albumin (BSA) has achieved gender accuracy rates of 70% to 80% based on pregnancy rates. However, this verification method requires a lengthy process to determine the success percentage of sexing. Polymerase Chain Reaction (PCR) testing can be utilized for verification in a relatively short time, requiring a pair of primers to amplify the target DNA region. This study aims to verify sexed spermatozoa using a new primer design for the Limousin cattle X chromosome through PCR testing. The results indicate that sperm separation using the BSA column yielded the PLP1 gene (207 bp). This demonstrates that sperm sexing with the BSA column method can effectively separate sperm carrying X and Y chromosomes, which PCR molecularly verifies

Mean first-passage time of heterogeneous telegrapher's process under stochastic resetting

We study the first-passage time of the heterogeneous telegrapher's process, which is a stochastic process with a multiplicative dichotomic noise and a position-dependent velocity. As special cases we recover results for heterogeneous diffusion in the Stratonovich interpretation, as well as the standard telegrapher's process with a constant velocity. In the framework of the renewal equation approach, we study the survival probability and the first-passage time density. An exact result for the mean first-passage time in the presence of Poissonian stochastic resetting of the particle to the initial position is obtained as well. An optimal resetting rate is obtained. In this case, the mean first-passage time becomes minimal for every power-law exponent of the power-law position-dependent velocity. We have also observed that the optimal resetting rate increases when the power-law exponent of the velocity decreases

Risks and safety standards for the use of genetically modified organisms in the context of food security

Genetically modified organisms (GMOs) have become the cornerstone of modern agriculture, offering solutions to some of the most pressing issues such as food security, pest control, and climate change. This article discusses the risks and safety standards of using genetically modified organisms (GMOs) in agriculture. Regulatory approaches in Europe, the USA, and Russia are analyzed, as well as the potential environmental and social consequences of GMO use. Both positive and negative aspects of the introduction of GMOs in the agricultural sector are evaluated