bluuebunny/crossref_metadata_2025_split huggingface dataset:
Observational Signatures of Cosmic-Ray Interactions in Molecular Clouds
Authors: Owen Ellis R. , On Alvina Y. L. , Lai Shih-Ping , Wu Kinwah 
Published: May 2021

Abstract
We investigate ionization and heating of gas in the dense, shielded clumps/cores of molecular clouds bathed by an influx of energetic, charged cosmic rays (CRs). These molecular clouds have complex structures, with substantial variation in their physical properties over a wide range of length scales. The propagation and distribution of CRs is thus regulated accordingly, in particular, by the magnetic fields threaded through the clouds and into the dense regions within. We have found that a specific heating rate reaching 10−26 erg cm−3 s−1 can be sustained in the dense clumps/cores for Galactic environments, and this rate increases with CR energy density. The propagation of CRs and heating rates in some star-forming filaments identified in IC 5146 are calculated, with the CR diffusion coefficients in these structures determined from magnetic field fluctuations inferred from optical and near-infrared polarizations of starlight, which is presumably a magnetic field tracer. Our calculations indicate that CR heating can vary by nearly three orders of magnitude between different filaments within a cloud due to different levels of CR penetration. The CR ionization rate among these filaments is similar. The equilibrium temperature that could be maintained by CR heating alone is of order 1 K in a Galactic environment, but this value would be higher in strongly star-forming environments, thus causing an increase in the Jeans mass of their molecular clouds.
Thermonuclear 19F(p, α)16O Reaction Rate Revised and Astrophysical Implications
Authors: Zhang L. Y. , López A. Y. , Lugaro M. , He J. J. , Karakas A. I. 
Published: May 2021

Abstract
We have calculated the thermonuclear 19F(p, α

γ
)16O reaction rate in a wide temperature region of 0.001–10 GK by re-evaluating the available experimental data. Together with recently evaluated 19(p, α
0)16O and 19(p, α

π
)16O data, we have derived a new total reaction rate of 19F(p, α)16O using a Monte Carlo technique. The present rate is larger than the NACRE recommended one by factors of 36.4, 2.3, and 1.7 at temperatures of 0.01, 0.05, and 0.1 GK, respectively. This is because we have considered the enhanced low-energy astrophysical S factors in the (p, α

γ
) channel, owing to the interference effect between an 11 keV resonance and the well-known 323 keV resonance. It shows that the (p, α

γ
) channel dominates the total rate over the entire temperature region, except for a narrow region of 0.05–0.12 GK where the (p, α
0) channel dominates, contrary to the previous conclusion. We have investigated the impact of the 19F(p, α)16O reaction rate using a simple parametric model of extra mixing in low-mass AGB stars, which would lower the fluorine abundance produced and observed in these stars. However, models considering different temperature profiles and more sophisticated approaches, such as extra mixing induced by magnetic fields, are needed to verify the results of our preliminary tests. Interestingly, our new rate has a strong impact on destruction of 19F in the CNO cycle at low temperatures of 0.02–0.03 GK, and this general behavior needs to be analyzed further.
Competitive Dehydrogenation and Backbone Fragmentation of Superhydrogenated PAHs: A Laboratory Study
Authors: Stockett Mark H. , Avaldi Lorenzo , Bolognesi Paola , Bull James N. , Carlini Laura , Carrascosa Eduardo , Chiarinelli Jacopo , Richter Robert , Zettergren Henning 
Published: May 2021

Abstract
Superhydrogenated polycyclic aromatic hydrocarbons (PAHs) have been suggested to catalyze the formation of H2 in certain regions of space, but it remains unclear under which circumstances this mechanism is viable given the reduced carbon backbone stability of superhydrogenated PAHs. We report a laboratory study on the stability of the smallest pericondensed PAH, pyrene (C16H10+N
, with N = 4, 6, and 16 additional H atoms), against photodestruction by single vacuum ultraviolet photons using the photoelectron–photoion coincidence technique. For N = 4, we observe a protective effect of hydrogenation against the loss of native hydrogens, in the form of an increase in the appearance energies of the

and C16H8
+ daughter ions compared to those reported for pristine pyrene (C16H10). No such effect is seen for N = 6 or 16, where the weakening effect of replacing aromatic bonds with aliphatic ones outweighs the buffering effect of the additional hydrogen atoms. The onset of fragmentation occurs at similar internal energies for N = 4 and 6, but is significantly lower for N = 16. In all three cases, H-loss and C
m
H
n
-loss (m ≥ 1, carbon backbone fragmentation) channels open at approximately the same energy. The branching fractions of the primary channels favor H-loss for N = 4, C
m
H
n
-loss for N = 16, and are roughly equal for the intermediate N = 6. We conclude that superhydrogenated pyrene is probably too small to support catalytic H2-formation, while trends in the current and previously reported data suggest that larger PAHs may serve as catalysts up to a certain level of hydrogenation.
Black Hole Mass Function of Coalescing Binary Black Hole Systems: Is there a Pulsational Pair-instability Mass Cutoff?
Authors: Wang Yuan-Zhu , Tang Shao-Peng , Liang Yun-Feng , Han Ming-Zhe , Li Xiang , Jin Zhi-Ping , Fan Yi-Zhong , Wei Da-Ming 
Published: May 2021

Abstract
We analyze the LIGO/Virgo GWTC-2 catalog to study the primary mass distribution of the merging black holes. We perform hierarchical Bayesian analysis and examine whether the mass distribution has a sharp cutoff for primary black hole masses below 65 M
⊙, as predicted in the pulsational pair-instability supernova model. We construct two empirical mass functions. One is a piece-wise function with two power-law segments joined by a sudden drop. The other consists of a main-truncated power-law component, a Gaussian component, and a third very massive component. Both models can reasonably fit the data and a sharp drop of the mass distribution is found at ∼50M
⊙, suggesting that the majority of the observed black holes can be explained by the stellar evolution scenarios in which the pulsational pair-instability process takes place. On the other hand, the very massive subpopulation, which accounts for at most several percent of the total, may be formed through hierarchical mergers or other processes.
La fonction documentaire dans un État « moderne »
Authors: Baude Catherine , Krumnow Marie Pascale 
Published: May 2021

Cet article a pour objet de mettre en lumière les conditions du développement des préoccupations documentaires de l’administration après-guerre, en se focalisant sur deux acteurs majeurs de cette évolution : la Commission de coordination de la documentation administrative (CCDA) et l’Association professionnelle des documentalistes (ADBS). Il tente d’éclairer les logiques de coordination interministérielle et de mutualisation mises en œuvre par les pouvoirs publics pour développer la technicité de la fonction documentaire dans les services et qui rendront possible ultérieurement la mise en place d’un statut interministériel des documentalistes. Il fait suite à l’article de Catherine Baude détaillant les actions menées pendant plus de quarante ans par l’ADBS pour améliorer le statut des personnels de documentation dans la Fonction publique d’État. S’appuyant sur ce premier récit de l’action d’une association professionnelle, les auteures ont cherché à retracer, sur un temps long, l’émergence et l’évolution de la fonction documentaire dans l’administration.
Exposé aux vagues des décès, être soignant en soins palliatifs
Authors: Sâles Élodie 
Published: May 2021

Dans notre unité, près de 85 % des séjours se concluent par le décès du patient. La répartition n’est pas régulière et il est fréquent d’assister à des « vagues » de décès. Il est légitime de s’interroger alors sur le vécu émotionnel des soignants confrontés à ces décès en nombre. À cette fin, nous présentons une étude dont l’objectif était de déterminer un ensemble de critères correspondant au ressenti difficile des soignants dans certaines prises en charge.
La pandémie Covid en soins de longue durée
Authors: Leperre Armelle , Béal Corinne , Krolak-Salmon Pierre 
Published: May 2021

Les équipes de soins de longue durée ont été confrontées lors de la première vague à la brutalité de la pandémie, au grand nombre et à la rapidité des décès, le plus souvent en l’absence des proches, aux consignes initiales parfois erratiques, au manque de moyens au début, à la fatigue physique et psychologique. Se sont ajoutés des éléments spécifiques : une relation très proche des patients, une contamination impliquant les soignants, des questionnements éthiques sur le confinement ou le transfert des patients assortis de décisions complexes au quotidien.
Réflexions en temps de Covid : comment poursuivre le fil de l’histoire ?
Authors: Legenne Myriam 
Published: May 2021

Les soignants se sentent remis en question dans leurs propres fondations : n’est-il pas vain de soigner et de tant se donner puisque tant de patients décèdent y compris en réanimation ? Face à cet ébranlement, nous avons le choix : nous laisser submerger par la vague ou créer, c’est-à‑dire ouvrir la porte à des jaillissements méconnus ou contenus jusqu’alors, dont la force, parce qu’elle est partagée avec d’autres, peut nous permettre d’avancer ensemble contre vents et marées.
Confinement des possibles de la prise en soin palliative face à la crise sanitaire : érosion de la vitalité et fatigue de compassion
Authors: Mauro Cynthia 
Published: May 2021

Comment le confinement de nos pratiques constitue-t-il un risque d’atteinte à l’idéal de soin, la santé mentale d’une équipe, et de quelles ressources disposons-nous pour y répondre ? L’efficacité de l’agir protecteur s’amenuise et crée une brèche propice à la lassitude, à la fragilisation de notre résilience et de notre élan vital. Le risque majeur est que cette brèche non colmatée ne rende la béance plus grande, plus active, et potentialise l’installation d’une usure émotionnelle et d’une fatigue de compassion.
Management of Patients With DME With Good Visual Acuity in Routine Clinical Practice
Authors: Hentati Firas , Melo Alline G.R. , Greenlee Tyler E. , Muste Justin , Chen Andrew X. , Conti Thais F. , Hom Grant L. , Singh Rishi P. 
Published: May 2021

BACKGROUND AND OBJECTIVE:
To determine outcomes of eyes with diabetic macular edema (DME) and best visual acuity (BVA) of 20/25 or better in routine clinical practice.

PATIENTS AND METHODS:
Retrospective study of 72 patients with DME and BVA of 20/25 or better. Patients were divided by anti-vascular endothelial growth factor (VEGF) treatment regimen: early (Group A), delayed (Group B), and none (Group C).

RESULTS:

Group A had higher baseline central subfield thickness (CST) (325 ± 62 µm) compared to Groups B (292 ± 24 µm) and C (296 ± 35 µm) (
P
= .033). All groups had similar 24-month CST (299 ± 62 µm, 280 ± 64 µm, 296 ± 65 µm;
P
= .61). There was no difference in baseline BVA among groups (81.9 ± 2.4, 83.2 ± 2.4, 82.4 ± 2.5 Early Treatment Diabetic Retinopathy Study [ETDRS] letters, respectively;
P
= .290), but at 6 months, Group A had lower BVA (76.6 ± 9.6 ETDRS letters) than groups B (81.9 ±3.3 ETDRS letters) and C (82.4 ± 5.0 ETDRS letters) (
P
= .008). There was no difference among groups in 24-month BVA (78.9 ± 6.6, 78.4 ± 12.3, and 80.6 ± 6.9 ETDRS letters, respectively;
P
= .448).

CONCLUSION:
Although observation may be indicated in eyes with stable BVA and CST less than 300 µm, anti-VEGF stabilizes BVA in eyes with CST greater than 300 µm and eyes with declining BVA.

[
Ophthalmic Surg Lasers Imaging Retina.
2021;52:247–256.]
PELÍCULA UMA PROFESSORA MUITO MALUQUINHA
Authors: Schefer Maria Cristina , De Souza Emanuele da Silva 
Published: May 2021

O presente artigo apresenta uma análise filmográfica (FABRIS, 2008) da película Uma professora muito maluquinha, produzida em 2010 a partir do livro com o mesmo título, escrito em 1995 pelo escritor Ziraldo. Graduandas de um curso de Pedagogia, em uma universidade do Litoral Norte do Rio Grande do Sul, após assistirem ao filme, foram desafiadas a situar, histórica e pedagogicamente, as práticas de ensino narradas na trama. As contribuições de Saviani (2009), Cunha (2013), Libâneo (1994), Giusta (2013) e Camozatto (2015) foram fundamentais para estas reflexões e permitiram as seguintes conclusões: a) a professora “maluquinha” propunha práticas diferenciadas na escola, porém, a partir de tendências pedagógicas liberais; b) a pesquisa filmográfica, por permitir deslocamentos tempo-espaço, pode produzir reflexões importantes acerca da profissão do magistério.
Gestational Diabetes Mellitus and Early Hemodynamic Changes in Fetus
Authors: Fatihoglu Erdem , Aydin Sonay , Karavas Erdal , Kantarci Mecit 
Published: May 2021

Background:
Gestational diabetes mellitus (GDM) incidence can increase up to 14%. GDM creates a risk for developing type 2 diabetes mellitus after pregnancy. Umbilical artery (UA) and fetal middle cerebral artery (MCA) changes in GDM have been studied before. The previous studies have contradictory results. In the current study, we aim to detect and define the impairment of color Doppler ultrasound (CDUS) characteristics in UA and MCA for the pregnant with GDM.

Methods:
US examinations were all performed at 18–22 weeks of gestation with a 3.5 MHz convex transducer. We recorded peak systolic velocity (PSV), end diastolic velocity, pulsatility index, resistive index, and systole/diastole ratio values of both UA and MCA at 18–22 weeks of gestation. GDM diagnosis was created according to the American Diabetes Association guidelines.

Results:
Sixty GDM patients and 61 healthy controls were included into the study. Median MCA PSV value was lower in GDM group (28 cm/s vs. 32 cm/s, P = 0.37). Among UA CDUS parameters, we cannot find any significant difference. In GDM group, we could not detect any significant correlation between CDUS parameters and HbA1C values.

Conclusion:
GDM changes fetal brain hemodynamics and the change can be detected at 18–22 weeks of gestation. Decreased fetal MCA PSV values can serve as an early warning for GDM.
Amenable and inner amenable actions and approximation properties for crossed products by locally compact groups
Authors: McKee Andrew , Pourshahami Reyhaneh 
Published: May 2021

AbstractAmenable actions of locally compact groups on von Neumann algebras are investigated by exploiting the natural module structure of the crossed product over the Fourier algebra of the acting group. The resulting characterization of injectivity for crossed products generalizes a result of Anantharaman-Delaroche on discrete groups. Amenable actions of locally compact groups on$C^*$-algebras are investigated in the same way, and amenability of the action is related to nuclearity of the corresponding crossed product. A survey is given to show that this notion of amenable action for$C^*$-algebras satisfies a number of expected properties. A notion of inner amenability for actions of locally compact groups is introduced, and a number of applications are given in the form of averaging arguments, relating approximation properties of crossed product von Neumann algebras to properties of the components of the underlying$w^*$-dynamical system. We use these results to answer a recent question of Buss, Echterhoff, and Willett.
Anti-hyperglycaemic and anti-oxidant activities of five Nigerian antidiabetic plants
Authors: Ayoola M. D. , Adebajo A. C. , Obuotor E. M. , Oladapo T. O. , Fleischer T. C. 
Published: May 2021

Leaves of Olax subscorpioidea, Hoslundia opposita, Cleistopholis patens, Plumbago zeylanica and Dioscoreophyllum cumminsii that are used as anti-diabetics were evaluated for hyperglycaemic-lowering and antioxidant activities to justify their Nigerian ethnomedicinal usage. Leaf methanolic extracts (100, 200 and 400 mg/kg, p.o.) were assayed in normal, glucose- and alloxan-induced diabetic rats, while 1,1,-diphenyl-2-picrylhydrazyl, total antioxidant capacity, ferric reducing antioxidant power and hydroxyl radical scavenging tests were used for their antioxidant activity. Effects of n-hexane, dichloromethane, ethylacetate and aqueous partition fractions of the three most active anti-hyperglycaemic extracts were also tested in glucose-loaded rats. In normoglycaemic rats, all extracts generally lacked activity, while with glucose-loaded rats, only O. subscorpioidea (200mg/kg) and C. patens (400 mg/kg) at 1 h and O. subscorpioidea (200, 400 mg/kg) and C. patens (400 mg/kg) at 2-4 hours gave lowered (p < 0.05) blood glucose levels than glibenclamide (5 mg/kg), while activity of H. opposita and P. zeylanica (200 mg/kg) were only comparable to glibenclamide. When daily fed for fourteen days to alloxan-induced diabetic rats, all extracts, at their most active doses, gave significantly higher activity than glibenclamide. Olax subscorpioidea leaf extract had the highest hyperglycaemic-lowering and least antioxidant activities. Highest antioxidant activity of H. opposita may suggest some contribution of antioxidant property to its hyperglycaemic-lowering activity. The glucose-lowering and insulinotropic constituents of O. subscorpioidea, H. opposita and C. patens should be concentrated in their aqueous, aqueous and dichloromethane fractions, respectively. Anti-hyperglycaemic ethnomedicinal use of these plants was justified and H. opposita has additional antioxidant property. Keywords: Antioxidant activity; Diabetes mellitus; Nigerian anti-diabetic plants
Nghiên cứu đặc điểm u lạc nội mạc tử cung buồng trứng ở các trường hợp vô sinh
Authors: Nguyễn Đắc Hưng , Nguyễn Đắc Nguyên , Lê Minh Tâm 
Published: May 2021

Mục tiêu: khảo sát một số đặc điểm lâm sàng, cận lâm sàng ở những bệnh nhân vô sinh có u lạc nội mạc tử cung (LNMTC) buồng trứng. Đối tượng và phương pháp nghiên cứu: mô tả cắt ngang bệnh nhân có u LNMTC đang điều trị vô sinh tại Trung tâm nội tiết sinh sản và Vô sinh, bệnh viện trường Đại Học Y Dược Huế trong khoảng thời gian từ 4/2019 đến tháng 6/2020.
Kết quả: Qua nghiên cứu gồm 101 trường hợp lạc nội mạc tử cung, ghi nhận độ tuổi trung bình là 36,53 ± 5,86 tuổi, BMI trung bình là 19,75 ± 1,6 kg/m2. Vô sinh nguyên phát chiếm 76,23%. Thời gian vô sinh trung bình là 4,18 ± 2,69 năm. Đau bụng kinh chiếm 73%. Khám thấy phần phụ có khối u chiếm 75,24%. Prolactin trung bình: 388,26 ± 249,15 μUI/ml, AMH trung bình 4,03 ± 3,73 ng/ml, CA-125 trung bình: 56,78 ± 33,01 UI/ml. Siêu âm buồng trứng: 61,38% có u LNMTC ở buồng trứng (T). 30,69% bệnh nhân có kèm LNMTC trong cơ tử cung.
Kết luận: Bệnh nhân vô sinh có u lạc nội mạc tử cung tại buồng trứng có một số điểm khác biệt so với những bệnh nhân vô sinh khác. Việc nhận diện các yếu tố liên quan giúp góp phần điều chỉnh cách thức can thiệp trong điều trị vô sinh.
Pembangunan Masyarakat melalui Penegakan Keadilan Sosial terhadap Akses Ilmu Pengetahuan Menuju Knowledge Society
Authors: Putera Prakoso Bhairawa , Zulhamdani Muhammad 
Published: May 2021

Social justice in the field of science is the key to achieving a knowledge society. Indonesia as a developing country is also trying to develop science. However, not all Indonesians have access to formal education and other sources of knowledge. The development of science led a nation that had the ability to create and shape advanced civilizations. This paper is based on a literature study and official government data related to education access. Social justice towards science will be achieved by creating a balance in access to knowledge and the availability of sources of knowledge. The decreasing level of illiteracy indicates that the community has received a proper education. There are five aspects to achieving progress in a knowledge-based society namely infrastructure, content, affordability, diversity, and human capacity.
Keywords: Community Development, Education Access, Social Justice, Knowledge Society
ABSTRAK
Kemajuan dan kemakmuran telah dirasakan oleh berbagai negara di beberapa negara Amerika utara, eropa, dan beberapa negara Asia seperti Jepang, Korea Selatan dan China. Kemajuan ini diperoleh karena penguasaan ilmu pengetahuan di negara mereka. Indonesia sebagai negara berkembang juga berusaha untuk mengembangkan ilmu pengetahuan. Namun selama ilmu pengetahuan di sebarkan secara tidak merata, negara ini sulit untuk bangkit dari keterpurukan tersebut. Kemajuan bangsa hanya diperoleh jika masyarakat Indonesia telah mendapatkan keadilan sosial dalam bidang ilmu pengetahuan. Keadilan sosial dalam bidang ilmu pengetahuan adalah kunci untuk mencapai sebuah masyarakat pengetahuan atau knowledge society. Dalam membentuk masyarakat pengetahuan yang berkeadilan sosial setidaknya ada lima aspek yang perlu diperhatikan, yakni infrastruktur fisik, konten pengetahuan, keterjangkauan, keberagaman, dan kapasitas manusia.
Kata Kunci: Pembangunan Masyarakat, Akses Pendidikan, Keadilan Sosial, Masyakarat Berpengetahuan
Participatory Design of Space
Authors: Careva Kristina , Lisac Rene 
Published: May 2021

Complexity of the 20th century society, along with strong professions' specialization, led to separation between all participants in the developing processes, especially in public spaces design. Lack of cohesion and consensus along with poor communication between professions, citizens, government and business sector, resulted in new participative and interdisciplinary trends emerging in the 21st century to bring sectors back together. Students' education must follow these trends, as their orientation in shaping the desirable futures.
Elective course ‘Participatory design of space’ (POP) is planned as a faculty-based fieldwork workshop that gives students the opportunity to become acquainted with participatory methods in space design. In this way, the user's opinion is included in the cognitive fund when drafting the conceptual solution of a small-scale task in the public space or in any area of interaction. Students learn to identify and critically evaluate participatory content, to generate the conceptual level of planning — intent, to discuss it with users, to translate it directly and recognizably into a viable solution, to present it successfully, and to participate in the realization.
— Trans —
Authors: Schredlová Petronela , Haumerová Tereza 
Published: May 2021

To introduce ourselves first, we are a group of human beings working together only because of one hidden school — EASA ( European architecture student assembly).
It works like a perfect filter. Filter for those that are looking for more than general education.
Forming this vision about education was a general effort of 5 of us till the very end. Following text is not just about transdisciplinarity but about educating ourselves in communication, values, equality and daily choices. We´ve learned how to take a creative critique, how to trust each other, but mostly to understand that no one of us would make this alone.