bluuebunny/crossref_metadata_2025 huggingface dataset:
Sociological study of value orientations of students of a sports and physical education university
Authors: Oganyan K. M. , Oganyan K. K.
Published: April 2023

According to the author’s position, society has believed for many years that young people should internalize and follow the spiritual values of their fathers. However, the experience of different generations shows that this attitude is a myth. The paper investigated several value orientations of students of a sports and physical education university. The life goals and orientations of young people were identified, and the attitude to the institution of marriage was determined. In addition, the readiness of young people to create a family was comprehended, and students’ attitudes toward the future profession were analyzed. The survey found that students at the Lesgaft National State University of Physical Culture, Sports and Health are focused on choosing a profession that will simultaneously bring pleasure and financial well-being. In the context of economic and political changes, the students of this university, being the driving force of the society, are value-oriented to create a strong and friendly family and choose an interesting and exciting job that will bring material welfare.
Social protection of motherhood and childhood in the regions of the south of Western Siberia in the 1990s.
Authors: Radonova A. V.
Published: April 2023

The article is devoted to the study of the processes of social support for motherhood and childhood in the Russian Federation, in general, and in the regions of Southwestern Siberia during one of the problematic periods of social protection — in the 90s of the twentieth century. In the context of the crisis of financing social payments, the most important task is to develop an effective concept of social support for vulnerable segments of the population. The analysis of statistical data confirming the relevance of the demographic crisis in Russian society is presented. In particular, the materials of the State Archives of the subjects of the south of Western Siberia are considered: the Altai Republic, Omsk, Novosibirsk and Kemerovo regions, the Altai territory. The basic normative acts adopted in the 1990s regulating the mechanisms of social security for families with children in our country are characterized. The logical result of the study was the conclusion that the systematic indexation of material payments is mandatory in proportion to the increase in consumer prices for essential goods. The provision of preferential loans for the purchase of housing; budget financing of summer holidays for children from poor and large families; an increase in the volume of free services for children and mothers in medical institutions is clearly not enough to overcome the difficulties that have arisen. Overcoming the crisis phenomena is seen in attempts to balance the social system of the Russian Federation relative to the real socio-economic level of the country.
Effects of the networking of social relationships within an activity-based approach to scientific research
Authors: Snisarenko S. O. , Abyzov A. G.
Published: April 2023

According to the author’s position, modern society and its social determinants have qualitatively new features, which allows identifying the information and digital, electronic and digital, and information and network format of modern civilization characterized by digitalization, networking, mobility, and complexity. The digitalization of the society generated and enriched scientific sociological issues with new terminology. The terms “cybersociology”, “sociology of the Internet”, “sociology of online communities”, and “sociology of cyberculture” appeared. The subject field was supplemented with new interdisciplinary areas such as digital practices, sociological analysis of digital data and digital media, and critical and public digital sociology. Global networking expands the horizons of research in digital sociology, providing sociologists with truly big data that can be studied and interpreted to monitor social communications.
Problematic aspects of the theory and practice of transferring premises from non-residential to residential
Authors: Oganesyan S. M. , Kuz’min A. V. , Porechnyy E. M.
Published: April 2023

This paper is focused on the problem of legal regulation of the transfer of nonresidential premises to residential and vice versa. The authors reviewed the main normative legal acts regulating this sphere of legal relations. Special emphasis is given to the classification of a group of subjects. The judicial practice on the transfer of non-residential premises to residential and residential premises to non-residential was analyzed. Several problems, which are most frequently faced by the subjects of the legal relations, are disclosed. The grounds for the transfer of non-residential premises to residential are studied and characterized. The analysis of judicial practice showed that in assigning a new legal status to an object of real estate, its features consisting of certain conditions must be primarily considered.
Analyzing the Relationship between Digital Game Addiction and Developmental Levelss Aged 4-6 Years Old
Authors: Novitasari Aida , Zara Eka Putri Ananda , Hidayat Enung Mardiyana , Muafiroh Adin , Indriatie Indriatie
Published: April 2023

digital era is experiencing very rapid development, especially the use of gadgets and this is in demand by all age levels, including pre-school age children. This has an impact on the level of child development in the form of delays in the level of development. The purpose of this study was to determine the relationship between game addiction and the level of development of children aged 4-6 years. The research design is cross sectional, the sampling technique used is a total sampling of 38 children at the Handayani Kindergarten in Surabaya, the independent variable is addiction to playing games, the dependent variable is the level of development of children aged 4-6 years. The analytical test used was spearman rho = 0.01. The results of the study show that there is a relationship between addiction to playing gadgets with the level of development of children aged 4-6 years with p value = 0.000 <0.05. Parents are expected to know the impact of gadget addiction and be able to provide education and assistance to their children when using gadgets, there are rules that must be agreed between children and parents regarding the duration of gadget use. Facilitates the game manually, introduces interesting traditional games.
The Effect of High Glycemic Modified Breakfast Menu on Increasing Learning Concentration of Junior High School Students Insan Cendekia Mandiri (ICM) Sarirogo – Sidoarjo
Authors: Hindaryani Nurul , Erlyna Jayeng  , Mujayanto
Published: April 2023

The nutritional adequacy of the Insan Cendekia Mandiri (ICM) junior high school students is obtained from the provision of food in the dormitory. One way to increase the acceptance of food intake organized by the boarding institution at the Insan Cendekia Mandiri Junior High School (ICM) is to modify the food menu. The provision of food doesn’t escape the standard portion for each individual so takes a portion of food that is by the RDA, so that it can be seen whether the individual needs of junior high school students have been met or not. This study aims to analyze the effect of modifying the menu of a high-glycemic meal on the acceptability and increase in learning concentration in students of SMP Insan Cendekia Mandiri in Sarirogo, Sidoarjo. This research method uses a pre-experimental design with a one-group pretest-posttest to determine the quality of the modification of the high-glycemic plate menu through the level of preference, acceptance of the increase in learning concentration of junior high school students at Insan Cendekia Mandiri (ICM) Sarirogo, Sidoarjo. The research sample was 37 junior high school students taken by simple random sampling using a formula to meet the inclusion and exclusion criteria. The variables in this study consisted of independent variables, namely modification of high glycemic prescriptions, the dependent variable was acceptance and learning concentration. The research instrument used is a 7-day menu cycle using organoleptic tests by conducting pre and posttest. The result is The breakfast menu from ICM has a lower glycemic index than the modified menu because of the ingredients used. There is a difference in the average energy value in the modified menu, which is 102.5 kcal compared to the breakfast menu from ICM, 2,94 grams of protein average higher than the breakfast menu on ICM, 10,9 grams of fat higher than the breakfast menu on ICM and then 10,76 grams of carbohydrate average lower than breakfast menu on ICM, and student concentration has increased because of the modified menu which has a high glycemic index.
FAMILY SUPPORT FOR THE HEALTH STATUS OF THE ELDERLY IN THE PUCANG SEWU HEALTH CENTER WORK AREA SURABAYA CITY
Authors: LEMBUNAI TAT ALBERTA  , Rini Ambarwati  , Dwi Utari Widyastuti
Published: April 2023

The elderly is a life cycle experienced by every human being and is generally susceptible to diseases, especially degenerative diseases that affect their health status. The results showed that the prevalence of chronic diseases in the elderly is increasing over time. In 2015, the elderly morbidity rate was recorded at 28.62% which had an impact on increasing disability and decreasing quality of life. Family support is the attitude, action, acceptance of the family towards its family members in the form of emotional, instrumental, informational, rewarding support. This study was conducted to explain family support for the health status of the elderly in the work area of the Pucang Sewu Health Center in Surabaya. Descriptive research method, data collection is carried out directly using questionnaires, descriptive data analysis using percentages. The results showed emotional support was mostly good, instrumental support, informational support and award support were almost entirely good. It is recommended to improve family support and the quality of health services so that the health status of the elderly improves and elderly health complaints can be minimized.
Chinese Patients’ and Family Caregivers’ Perception of Care Quality, A Qualitative Study in Australian Hospitals
Authors: Yu Ying , Xiao Lily , Chamberlain Di
Published: April 2023

Cultural diversity in the Australian population is significant. It challenges health professionals in Australia's acute and critical care settings to provide culturally competent care for ethnic minority patients. Chinese Australians are the largest ethnic minority group in Australia. However, their experiences in acute hospital settings remain largely unknown. Studies on this patient group are much needed to address the research gap and add research evidence on transcultural nursing for the international community. The aim of this study was to explore Chinese patients’ and their family caregivers’ perceptions of care quality in Australian hospitals. A qualitative descriptive study design was used in this study. Adult Chinese patients born in mainland China and who had an acute and critical care admission were recruited from metropolitan hospitals in South Australia in 2019 using the snowball method. Semi-structured interviews were conducted in Mandarin. Data were transcribed verbatim in simplified Chinese for thematic analysis. Results were translated to English and checked by a bilingual team member. Ten participants participated in the study. Four main themes were identified from the data analysis: 1) the feeling of being disoriented in the ICU; 2) desire for comfort; 3) lack of engagement in treatment and care plans; and 4) lack of participation in quality improvement feedback to the care system. Chinese people have unique cultural beliefs, communication patterns, and health-seeking behaviors. To provide culturally competent care for acute and critically ill Chinese patients, health professionals are required to incorporate transcultural nursing theory, knowledge, skills, and attitudes into everyday practice.
HISTOPATHOLOGICAL SPECTRUM OF ENDOMETRIAL LESIONS IN WOMEN PRESENTING WITH ABNORMAL UTERINE BLEEDING IN A TERTIARY CARE CENTRE.
Authors: Das Jayashree , Sharma Adity , Pritom Changmai Namrata , Ahmed Zarika
Published: April 2023

Background: Abnormal uterine bleeding is one of the signicant gynaecological complaints, often related to endometrial pathology. It is
important to differentiate non neoplastic lesion from neoplastic lesions as well as early detection of precursor lesions and exclusion of malignancy.
Aim: Materials And Methods: To study the histopathological spectrum of endometrial lesions in women presenting with AUB in our population.
It was a retrospective hospital based study, conducted among 200 patients in the Department of Pathology, AMCH, Dibrugarh from 1st July, 2021
to 30th June 2022. The samples included were curettage, biopsy and resection specimen. Most common cause of AUB in reproductive and Results:
Perimenopausal women were normal cyclical endometrium, and in cases of post-menopausal women it was atrophic endometrium and nonatypical hyperplasia in all the age groups. Patients with AUB shows a va Conclusion: rying spectrum of endometrial pattern. Hence, It is
important to evaluate endometrial pathology in all women presenting with AUB without a known cause.
EVALUATION OF EASE OF INSERTION OF CLASSICAL LARYNGEAL MASK AIRWAY IN CHILDREN USING DEXMEDETOMIDINE AS CO-INDUCING AGENT WITH PROPOFOL COMPARED TO INDUCTION WITH PROPOFOLALONE.
Authors: Pegu Safiya , Saikia Diganta , Kumar Das Karuna
Published: April 2023

Background: Laryngeal mask airway (LMA), is an essential tool for anaesthesiologist's in airway management. Propofol is an induction agent of
choice for LMAinsertion. However larger doses of propofol may cause haemodynamic instability. Dexmedetomidine has advantageous effects in
children over propofol. Objective of our study was to determine the ease of LMA insertion following co-induction with propofol and
dexmedetomidine compared to induction with propofol alone. Methods: A prospective observational study, was conducted in the department of
Anaesthesiology, Assam Medical College and Hospital (AMCH), Dibrugarh, Assam from the month of January to June, 2022. In this study, 60
children of age 4-12yrs, both male and female were assigned into two groups, PD & P: 30 each. Group PD were induced with injection propofol
3mg/kg and injection dexmedetomidine 0.5mcg/kg while group P received 4mg/kg of propofol alone. LMA insertion condition, hemodynamic
parameters were assessed. The data were analysed in terms of mean±standard deviation and median. Results: In group PD, the overall LMA
insertion condition was statistically better with greater hemodynamic stability compared to group P(p< 0.05), with less incidence of apnea in group
PD. Conclusion: In children, the combination of propofol and dexmedetomidine provide suitable LMA insertion condition and better
haemodynamics
“ROLE OF CONSTITUTIONAL HOMEOPATHIC TREATMENT IN CASES OF POLYCYSTIC OVARIAN SYNDROME USING HOMEOPATHIC MEDICAL REPERTORY''
Authors: Amol Telore Varsha , Akbar Khan Tanveer
Published: April 2023

PCOS said to be the most common endocrine disorder affecting young women. It's a state of clinical hyperandrogenism which includes hirsuitism,
acne and male type baldness. It is also associate with signicant morbidity such as anovulation, psychosocial dysfunction, metabolic syndrome,
cardiovascular disease and an increased risk of cancer. One in every 10 women has PCOS in India and it is increased in teenagers. It leads to chain of
therapeutic interventions such as Oral contraceptives, weight loss treatment, nutraceuticals, fertility treatments and anti-androgens (1). It is crucial
to save the female population from undergoing the versatile morbid processes called PCOS. Homoeopathy plays signicant role in treating
endocrine disorders due to its holistic concept. It offers better patient care at less cost with more competency. There is a need for a complementary
therapy which would alleviate the symptoms of PCOS effectively (2). This Randomised Placebo controlled trial will be adding value to the existing
mono pharmacy approach of Homoeopathy
“A CROSS-SECTIONAL STUDY OF CLINICO-MYCOLOGICAL PROFILE OF DERMATOPHYTES AND ANTIFUNGAL SUSCEPTIBILITY AMONG PATIENTS ATTENDING DERMATOLOGY OPD AT A TERTIARY CARE HOSPITAL IN TELANGANA”
Authors: Manaswi Potu , Jyothi Lakshmi G.
Published: April 2023

Background: Dermatophytosis is the most common supercial fungal infection worldwide, caused by dermatophytes that cause infections of the skin, hair,
and nails due to their ability to invade keratin. Belong to three closely related genera: Trichophyton, Microsporum, and Epidermophyton. It is common in the
tropics & subtropical regions and in areas of high humidity. Recent years have seen an alarming increase in chronic, recurrent, and recalcitrant
dermatophytosis in India. Despite the availability of a wide range of antifungals, treatment failure is often observed. This is often attributed to the probable
emergence of drug-resistant strains. To identify t Objectives: he dermatophyte species causing Dermatophytosis and to determine antifungal susceptibility
patterns to Fluconazole and Griseofulvin by Broth microdilution. A cross-sectional study was conducte Method: d over a period of 18 months duration i.e.,
from June 2021 to November 2022. Skin scrapings, hair plucking, and nail clippings were collected from 200 clinically diagnosed cases of dermatophytosis
who attended the outpatient department of Dermatology (DVL) and samples were processed at the upgraded Department of Microbiology at Osmania
General Hospital, Afzalgunj, Hyderabad. A total of 2 Results: 00 clinically diagnosed dermatophytosis patients were included in our study following
inclusion and exclusion criteria. Their demographic details and clinical examination of cutaneous lesions were recorded. In our study, most patients affected
were males 57% and the most common age group was 21-30 years seen in 25.5% of patients. Tinea corporis (40%) was the most common dermatophyte
lesion followed by Tinea cruris (19.5%) seen in our study. KOH positivity was seen in 42% and culture was positive in 69.5% of cases. Dermatophytes
isolated are 42% and non-dermatophytes isolated are 27.5% of cases in our study. The most common dermatophyte isolated in culture was Trichophyton
rubrum (45%), followed by Trichophyton mentagrophytes 28 (33.3%). Among isolates of dermatophytes, Fluconazole is sensitive to 33.3% of isolates,
whereas Griseofulvin is sensitive to 52.3% of isolates. Therapeutic failure is alarmingly common in t Conclusion: he current scenario of dermatophytosis in
India. Failure is probably seen with all common isolates, younger patients, high contagious nature. This study will help to standardize care, provide guidance
on management, and assist in clinical decision-making for healthcare professionals
Spectral Radius Conditions for the Rigidity of Graphs
Authors: Fan Dandan , Huang Xueyi , Lin Huiqiu
Published: April 2023

Rigidity is the property of a structure that does not flex under an applied force. In the past several decades, the rigidity of graphs has been widely studied in discrete geometry and combinatorics. Laman (1970) obtained a combinatorial characterization of rigid graphs in $\mathbb{R}^2$. Lovász and Yemini (1982) proved that every $6$-connected graph is rigid in $\mathbb{R}^2$. Jackson and Jordán (2005) strengthened this result, and showed that every $6$-connected graph is globally rigid in $\mathbb{R}^2$. Thus every graph with algebraic connectivity greater than $5$ is globally rigid in $\mathbb{R}^2$. In 2021, Cioabă, Dewar and Gu improved this bound, and proved that every graph with minimum degree at least $6$ and algebraic connectivity greater than $2+\frac{1}{\delta-1}$ (resp., $2+\frac{2}{\delta-1}$) is rigid (resp., globally rigid) in $\mathbb{R}^2$. In this paper, we study the rigidity of graphs in $\mathbb{R}^2$ from the viewpoint of adjacency eigenvalues. Specifically, we provide a spectral radius condition for the rigidity (resp., globally rigidity) of $2$-connected (resp., $3$-connected) graphs with given minimum degree. Furthermore, we determine the unique graph attaining the maximum spectral radius among all minimally rigid graphs of order $n$.
Impartial Hypergraph Games
Authors: Sieben Nándor
Published: April 2023

We study two building games and two removing games played on a finite hypergraph. In each game two players take turns selecting vertices of the hypergraph until the set of jointly selected vertices satisfies a condition related to the edges of the hypergraph. The winner is the last player able to move. The building achievement game ends as soon as the set of selected vertices contains an edge. In the building avoidance game the players are not allowed to select a set that contains an edge. The removing achievement game ends as soon as the complement of the set of selected vertices no longer contains an edge. In the removing avoidance game the players are not allowed to select a set whose complement does not contain an edge. We develop some generic tools for finding the nim-value of these games and show that the nim-value can be an arbitrary nonnegative integer. The outcome of many of these games were previously determined for several special cases in algebraic and combinatorial settings. We provide several examples and show how our tools can be used to refine these results by finding nim-values.
Asymmetric negative transfer effects of working memory training
Authors: Ni Nan , Gathercole Susan E. , Norris Dennis , Saito Satoru
Published: April 2023

Gathercole et al. (Journal of Memory and Language, 105, 19–42, 2019) presented a cognitive routine framework for explaining the underlying mechanisms of working memory (WM) training and transfer. This framework conceptualizes training-induced changes as the acquisition of novel cognitive routines similar to learning a new skill. We further infer that WM training might not always generate positive outcomes because previously acquired routines may affect subsequent task performance in various ways. Thus, the present study aimed to demonstrate the negative effects of WM training via two experiments. We conducted Experiment 1 online using a two-phase training paradigm with only three training sessions per phase and replicated the key findings of Gathercole and Norris (in prep.) that training on a backward circle span task (a spatial task) transferred negatively to subsequent training on a backward letter span task (a verbal task). We conducted Experiment 2 using a reversed task order design corresponding to Experiment 1. The results indicated that the transfer from backward letter training to backward circle training was not negative, but rather weakly positive, suggesting that the direction of the negative transfer effect is asymmetric. The present study therefore found that a negative transfer effect can indeed occur under certain WM training designs. The presence of this asymmetric effect indicates that backward circle and backward letter tasks require different optimal routines and that the locus of negative transfer might be the acquisition process of such optimal routines. Hence, the routines already established for backward circle might hinder the development of optimal routines for backward letter, but not vice versa.
VapoRock: Thermodynamics of Vaporized Silicate Melts for Modeling Volcanic Outgassing and Magma Ocean Atmospheres
Authors: Wolf Aaron S. , Jäggi Noah , Sossi Paolo A. , Bower Dan J.
Published: April 2023

Silicate vapors play a key role in planetary evolution, especially dominating early stages of rocky planet formation through outgassed magma ocean atmospheres. Our open-source thermodynamic modeling software “VapoRock” combines the MELTS liquid model with gas-species properties from multiple thermochemistry tables. VapoRock calculates the partial pressures of 34 gaseous species in equilibrium with magmatic liquid in the system Si–Mg–Fe–Al–Ca–Na–K–Ti–Cr–O at desired temperatures and oxygen fugacities (fO2, or partial pressure of O2). Comparison with experiments shows that pressures and melt-oxide activities (which vary over many orders of magnitude) are reproduced to within a factor of ∼3, consistent with measurement uncertainties. We also benchmark the model against a wide selection of igneous rock compositions including bulk silicate Earth, predicting elemental vapor abundances that are comparable to (Na, Ca, and Al) or more realistic than (K, Si, Mg, Fe, and Ti) those of the closed-source MAGMA code (with maximum deviations by factors of 10–300 for K and Si). Vapor abundances depend critically on the activities of liquid components. The MELTS model underpinning VapoRock was calibrated and extensively tested on natural igneous liquids. In contrast, MAGMA’s liquid model assumes ideal mixtures of a limited set of chemically simplified pseudospecies, which only roughly approximates the nonideal compositional interactions typical of many-component natural silicate melts. Finally, we explore how relative abundances of SiO and SiO2 provide a spectroscopically measurable proxy for oxygen fugacity in devolatilized exoplanetary atmospheres, potentially constraining fO2 in outgassed exoplanetary mantles.
Impact of Heavy Ions on the Structure of Current Sheets in the Gravity Field of Exoplanets and Stars
Authors: Kislov R. A. , Malova H. V. , Khabarova O. V. , Zelenyi L. M. , Antsiferova U. P.
Published: April 2023

Boundary current sheets (CSs) can be formed in collisionless space plasmas in the environment of exoplanets and cold stars. Usually they represent curved surfaces carrying the electric current analogous to the well-known planetary ionospheres, magnetopauses, or stellar coronas surrounding celestial bodies. At smaller local scales, some of them can be imagined as planar current layers of a finite scale located parallel to the surface of a celestial object and, correspondingly, perpendicular to the direction of the gravitational force. In some cases, this force crossed with magnetic field can influence the dynamics of charged particles in CSs and substantially change the structure of both the current layer and the magnetic field. We have generalized our prior model, taking into account a multi-ion plasma composition and a magnetic field configuration with a shear. It is shown that, due to the drift motion of plasma particles in the crossed gravitational and magnetic fields, the structure of CSs becomes more complex, accruing asymmetric and shifted profiles of the current and plasma densities that depend on dominating current carriers and the characteristics of the magnetic shear. We discuss possible applications of the results to the interpretation of observations of boundary layers in different space plasmas.
Target-of-Opportunity Observation Detectability of Kilonovae with WFST
Authors: Liu Zheng-Yan , Lin Zhe-Yu , Yu Ji-Ming , Wang Hui-Yu , Mourani Gibran-Marc , Zhao Wen , Dai Zi-Gao
Published: April 2023

Kilonovae are approximately thermal transients, produced by the mergers of binary neutron stars (BNSs) and neutron star (NS)–black hole binaries. As the optical counterpart of the gravitational-wave event GW170817, AT2017gfo is the first kilonova detected with smoking-gun evidence. Its observation offers vital information for constraining the Hubble constant, the sources of cosmic r-process enrichment, and the equation of state of NSs. The 2.5 m Wide-Field Survey Telescope (WFST) operates in six bands (u, g, r, i, z,
w), spanning from 320 to 925 nm. It will be completed in the first half of 2023, and with a field-of-view diameter of 3°, aims to detect kilonovae in the near future. In this article, considering the influence of the host galaxies and sky brightness, we generate simulated images to investigate WFST’s ability to detect AT2017gfo-like kilonovae. Due to their spectra, host galaxies can significantly impact kilonova detection at longer wavelengths. When kilonovae are at peak luminosity, we find that WFST performs better in the g and r bands and can detect 90% (50%) of kilonovae at a luminosity distance of 248 Mpc (338 Mpc) with 30 s exposures. Furthermore, to reflect the actual efficiency under target-of-opportunity observations, we calculate the total time of follow up under various localization areas and distances. We find that if the localization areas of most BNS events detected during the fourth observing (O4) run of LIGO and Virgo are hundreds of deg2, WFST is expected to find ∼30% of kilonovae in the first two nights following the detection of a GW event produced by a BNS during the O4 period.
Palynological features and taxonomic significance for 16 species of Gagea (Liliaceae) from Xinjiang, China
Authors: Lin Musen , Qiu Juan , Xie Kaiqing , Tan Dunyan
Published: April 2023

Since pollen characters can be used to help distinguish species, our aim was to determine if palynological information has taxonomic significance for Gagea species from Xinjiang, China. Gagea is widely distributed in north temperate and the subtropical zones. The genus has limited taxonomic characteristics and large morphological variation, which results in difficulty of species classification. Pollen morphology of 16 species of this genus was examined comprehensively via light microscope (LM) and scanning electron microscope (SEM). One qualitative and nine quantitative traits of the pollen grains were surveyed, followed by hierarchical cluster analysis (HCA). The pollen grains were bilaterally symmetrical heteropolar monads with a mono-sulcus and they were oblate or peroblate (Polar diameter (P) / Equatorial diameter (E) = 0.36–0.73) in shape and medium to large (P = 17.17–34.64 μm, E = 27.63–81.65 μm) in size. Three types of exine ornamentation were observed: perforate, microreticulate and reticulate cristatum. The HCA divided the 16 species into two groups. This research provides new data on pollen morphology for Gagea (the pollen morphology of eight species was reported for the first time). Pollen morphology also can be used to identify species with similar external morphology, such as G. nigra and G. filiformis. Furthermore, the study of pollen morphology not only provides new data for palynology research on Gagea, but also provides a basis for future classification of this genus.
Food preference strategy of four sympatric rodents in a temperate forest in northeast China
Authors: Li Dianwei , Zhang Chengzhi , Cao Yuwei , Gao Ming , Chang Shiqi , Xu Menghao , Jin Zhimin , Ni Hongwei
Published: April 2023

Rodents are well known as both seed predators and dispersers of various plant species in forest ecosystems, and they play an important role in the regeneration of vegetation. Thus, the research on seed selection and vegetation regeneration by sympatric rodents is an interesting topic. To understand the characteristics of preferences of rodents for different seeds, a semi-natural enclosure experiment was performed with four rodent species (Apodemus peninsulae, Apodemus agrarius, Tscherskia triton, and Clethrionomys rufocanus) and the seeds of seven plant species (Pinus koraiensis, Corylus mandshurica, Quercus mongolica, Juglans mandshurica, Armeniaca sibirica, Prunus salicina, and Cerasus tomentosa) to investigate the differentiation in niches and patterns of resource utilization of sympatric rodents. The results showed that all the rodents had consumed many seeds of Pi. koraiensis, Co. mandshurica, and Q. mongolica but differed significantly in how they selected the different seeds. The rate of utilization (Ri) of Pi. koraiensis, Co. mandshurica, and Q. mongolica exhibited the highest values. The Ei values indicated that the rodents tested exhibited differences in their priorities used to select the seeds from different plant species. All four species of rodents exhibited obvious preferences for certain seeds. Korean field mice preferentially consumed the seeds of Q. mongolica, Co. mandshurica, and Pi. koraiensis. Striped field mice favor the seeds of Co. mandshurica, Q. mongolica, P. koraiensis, and Nanking cherry. Greater long-tailed hamsters prefer to consume the seeds of Pi. koraiensis, Co. mandshurica, Q. mongolica, Pr. salicina, and Ce. tomentosa. Clethrionomys rufocanus likes to eat the seeds of Pi. koraiensis, Q. mongolica, Co. mandshurica, and Ce. tomentosa. The results supported our hypothesis that sympatric rodents overlap in food selection. However, each rodent species has a marked preference for food selection, and different rodent species differ in their food preferences. This reflects the role of distinct food niche differentiation in their coexistence.
Verdir une ville désertique ? Entre politique urbaine, pratiques habitantes et matérialité écologique à Abu Dhabi (Émirats arabes unis)
Authors: Cohen Marianne , Dubucs Hadrien , Clauzel Céline , Grésillon Étienne , Kyriazis Apostolos
Published: April 2023

Alors que les enjeux environnementaux se posent de façon croissante dans les villes, cet article a pour but de documenter et de questionner les politiques de verdissement et de constitution d’une infrastructure verte, dans une ville aride en pleine croissance et marquée par de profondes inégalités. Notre étude associant enquête sociale, relevés biogéographiques et cartographie des trames vertes, fait émerger les contradictions entre les intentionnalités des urbanistes, les pratiques des habitants, et les fonctionnalités écologiques en résultant. Cet exemple se révèle ainsi un terrain particulièrement riche pour mettre à l’épreuve ce nouveau modèle d’urbanisme écologique.
Peut-on, et faut-il, oublier la nation ?
Authors: Djaïz David
Published: April 2023

Une grave erreur de raisonnement qui ne voit dans la nation qu’un échelon démocratique ou technocratique a conduit à la minoration de l’importance des nations démocratiques dans la mondialisation. Or, la nation démocratique est une forme de vie commune spécifique en ce qu’elle a réussi une synthèse historique et spatiale des différents ordres de l’agir (politique, social, économique, culturel) que la cité elle-même n’avait pas réussi en raison de sa trop petite taille.
Vers une mondialisation plus inclusive
Authors: Rodrik Dani , Carraud Cyprien
Published: April 2023

Le commerce n’est pas purement une relation de marché, mais un instrument de reconfiguration des institutions nationales. Dani Rodrik examine à quelles conditions il pourrait être légitime de restreindre le commerce international, afin de promouvoir une politique sociale plus juste sur le territoire national. Il définit ainsi les cadres d’une mondialisation plus humaine, et fournit les outils théoriques pour lutter contre le dumping social.
Construire un monde bas-carbone
Authors: Bet Marion , Crépel Antoine
Published: April 2023

L’abondance énergétique, au coeur de notre modèle économique et social, est la cause d’un dérèglement climatique et d’un effondrement de la biodiversité sans précédent. Si nous souhaitons limiter le réchauffement climatique dans des limites vivables, il est nécessaire d’engager une réduction sans précédent de notre consommation énergétique. Loin d’une régression, cette grande transformation peut être un vecteur d’émancipation.
La nature ou les communs à l’épreuve du droit
Authors: Deffairi Meryem
Published: April 2023

Les évolutions contradictoires auxquelles est en proie le droit de l’environnement témoignent de l’incapacité du pouvoir normatif à rompre avec une approche économique des ressources naturelles mais la théorie des communs pourrait offrir de nouvelles pistes de réflexion pour repenser les rapports des humains à la nature dans le monde du droit.
ARTICLE RETIRÉ : Penser une politique publique écologique pour les quartiers populaires et avec leurs habitants
Authors: Gali Pauline
Published: April 2023

Intégrer les quartiers populaires aux réflexions environnementales est un impératif face au risque que la transition écologique ne devienne une dynamique sélective et excluante socialement et territorialement. Penser une politique de la « ville verte » qui intègre les quartiers populaires suppose d’inscrire les aménagements écologiques dans d’autres logiques que celles de l’attractivité et de la diffusion du mode de vie des classes supérieures, pour valoriser les ressources endogènes des quartiers populaires et de leurs habitants.
« La montée des risques de déclassement contribue à la distance entre classes moyennes et classes populaires »
Authors: Peugny Camille , Fontaine Marion , Lemieux Cyril
Published: April 2023

Les dynamiques de précarisation qui ont fait suite au vaste mouvement de stabilisation sociale des Trente glorieuses conduisent à une recomposition de la politisation des classes populaires. Pour le sociologue Camille Peugny, les risques de déclassement renforcent d’une part la fragmentation des classes populaires, d’autre part les tensions entre classes moyennes et classes populaires, les deux phénomènes alimentant le vote conservateur au sein de ces catégories.
« Le sentiment dominant chez les ouvriers et les employés est de ne plus être politiquement représentés par aucun parti »
Authors: Mayer Nonna , Fontaine Marion , Lemieux Cyril
Published: April 2023

Comment rendre compte de la décomposition du vote de gauche parmi les classes populaires ? La politiste Nonna Mayer revient sur le sentiment d’absence de représentation politique des classes populaires par la gauche, à mesure que les gouvernements socialistes ont soutenu le néolibéralisme et que le Parti communiste a cessé d’encadrer les banlieues rouges, laissant dans certains cas le champ libre à l’extrême droite.
« Le peuple de Trump échappe-t-il à toute responsabilité ? »
Authors: Kaplan Steve , Fontaine Marion , Lemieux Cyril
Published: April 2023

Nombre d’intellectuels de gauche ont tendance à ne pas vouloir demander de comptes au « peuple », au prétexte qu’il est dominé. Revenant sur la désillusion que lui a causée l’attaque du Capitole le 6 janvier 2021, l’historien américain Steve Kaplan explique pourquoi, selon lui, ils commettent une erreur.
À propos de Moi, Daniel Blake
Authors: Lemieux Cyril
Published: April 2023

Le portrait par Ken Loach de ses personnages, Daniel, charpentier au chômage, et Katie, mère de famille dans la précarité, permet d’identifier certaines limites dans la représentation progressiste actuelle des classes populaires. Tout à la tâche de contrer le récit conservateur sur l’assistanat, le réalisateur passe pudiquement sous silence les contradictions à l’oeuvre dans les classes populaires : il en ressort une idéalisation de la conduite des membres de ces classes et une mise à distance de l’action politique.
Enjeux politiques des rivalités technologiques sino-américaines
Authors: Bret Cyrille , Parmentier Florent
Published: April 2023

La rivalité mondiale entre la Chine et les États-Unis se décline en grande partie dans le champ technologique. L’essor des capacités chinoises en Recherche et Développement a permis, dans certains domaines, un rattrapage voire un dépassement des technologies américaines. La masse de l’économie chinoise lui octroie de ce point de vue un avantage comparatif certain. Les effets d’intégration économique produits par les technologies de pointe constituent un enjeu géopolitique majeur, en poussant toujours davantage les pays tiers à s’aligner sur l’une ou l’autre de ces deux puissances numériques.
Les défis de la renaissance industrielle
Authors: Voy-Gillis Anaïs
Published: April 2023

La réindustrialisation et la relocalisation sont des leviers pour l’indépendance stratégique, le redressement de la balance commerciale et la lutte contre le réchauffement climatique. Encore faut-il harmoniser ces différents enjeux, ce qui se fera difficilement sans l’intervention de la puissance publique.
Comment protéger nos filières stratégiques ?
Authors: Allais Marc-Alexandre
Published: April 2023

La capacité de produire certains biens sur le territoire national, notamment dans les domaines militaire, énergétique, sanitaire, agricole ou numérique, est une condition de l’indépendance stratégique du pays. Il importe de contrôler les investissements étrangers dans ces filières et de permettre des investissements publics pour les renforcer.
Réforme du baccalauréat : l’heure du bilan ?
Authors: Dupont Emma
Published: April 2023

Sous couvert de briser la « cage de fer » des filières et de favoriser l’autonomie élèves, la réforme du baccalauréat initiée en 2018 a plutôt renforcé les traits qui font du lycée le lieu d’une concurrence entre les projets d’individus socialement et scolairement inégaux, avec pour corollaires la désorientation et l’angoisse croissantes d’un grand nombre d’élèves, la mobilisation permanente d’une administration exténuée, et l’amertume de professeurs.
Les transformations sociologiques et politiques du monde enseignant
Authors: Farges Géraldine , Bet Marion
Published: April 2023

Quelles sont les évolutions sociologiques et historiques du métier d’enseignant ? Géraldine Farges examine le sentiment de déclassement qu’éprouvent aujourd’hui les professeurs et expose les différentes lignes de fracture tant idéologiques que sociologiques qui traversent ce corps professionnel.
Contributions syndicales
Authors: Nave-Bekhti Catherine , Kermoal Benoît , Dugault Carla
Published: April 2023

Ce dossier présente les réponses des syndicats qui ont donné suite à l’appel à contribution de Germinal. Catherine Nave-Bekhti, secrétaire générale du Sgen-CFDT, Benoît Kermoal, secrétaire national de l’UNSA, et la FCPE reviennent sur l’ambition et les évolutions de leurs mouvements syndicaux.
Ce que cache la « priorité à l’école » ?
Authors: Ferhat Ismail
Published: April 2023

Le rapport de la gauche à l’école repose sur un paradoxe. D’un côté, les forces de gauche accordent une priorité traditionnelle au système éducatif ; de l’autre, la réflexion sur l’école a été un remarquable facteur de division au sein de cette même famille politique. Il est néanmoins décisif que la gauche se concentre sur trois enjeux relatifs à l’institution scolaire : ne pas surinvestir l’école d’une mission qu’elle ne saurait réaliser ; rétablir l’équité budgétaire au sein du système éducatif ; enfin, anticiper les prochaines mutations de la démographie scolaire.
Pédagogues et républicains : au-delà d’un faux débat
Authors: Bet Marion
Published: April 2023

Que recouvre le débat entre « pédagogues » et « républicains » ? S’agit-il d’un antagonisme stérile, et peut-on concevoir une pédagogie qui réponde aux enjeux d’instruction de l’école, tout en prenant en compte l’hétérogénéité de la salle de classe ? Si on la considère comme un medium de réflexivité sociologique, la pédagogie a beaucoup à offrir aux sociétés modernes en termes d’émancipation. Elle est un support décisif au déploiement d’une pensée socialiste de l’école.
Les pratiques d’évaluation scolaire au service de l’équité et de l’efficacité
Authors: Merle Pierre
Published: April 2023

L’évaluation par notes engendre des effets négatifs qui entravent l’apprentissage. Elle produit et reconduit des biais qui nuisent à la progression des élèves. Au lieu de noter et de classer, le travail pédagogique de l’école doit être de former. Les méthodes d’« évaluation formative » fondées sur le contrôle de l’acquisition des compétences qui constituent un socle commun d’apprentissage devraient ainsi se substituer à la notation chiffrée.
Comment être un chef d’établissement en démocratie ?
Authors: Prochasson Christophe
Published: April 2023

De quelle manière concevoir le statut d’un chef d’établissement en démocratie, en dépit de la contradiction apparente qui traverse une telle exigence ? Christophe Prochasson critique la conception managériale qui constitue généralement la réponse apportée à cette recherche et suggère que le charisme et le savoir-faire peuvent être une voie salutaire pour conquérir une forme d’autorité démocratique.
Multiple positive solutions for system of mixed Hadamard fractional boundary value problems with $ (p_{1}, p_{2}) $-Laplacian operator
Authors: Rao Sabbavarapu Nageswara , Ahmadini Abdullah Ali H.
Published: April 2023

In this paper, we investigate the existence of positive solutions of a system of Riemann-Liouville Hadamard differential equations with $ p $-Laplacian operators under various combinations of superlinearity and sublinearity. We apply the Guo-Krasnosel'skii fixed point theorem for the proof of the existence results.
Attractor of the nonclassical diffusion equation with memory on time- dependent space
Authors: Wang Jing , Ma Qiaozhen , Zhou Wenxue
Published: April 2023

We consider the dynamic behavior of solutions for a nonclassical diffusion equation with memory

   \begin{document}$ u_{t}-\varepsilon(t) \triangle u_{t}- \triangle u-\int_{0}^{\infty}\kappa(s)\triangle u(t-s)ds+f(u) = g(x) $\end{document}

on time-dependent space for which the norm of the space depends on the time $ t $ explicitly, and the nonlinear term satisfies the critical growth condition. First, based on the classical Faedo-Galerkin method, we obtain the well-posedness of the solution for the equation. Then, by using the contractive function method and establishing some delicate estimates along the trajectory of the solutions on the time-dependent space, we prove the existence of the time-dependent global attractor for the problem. Due to very general assumptions on memory kernel $ \kappa $ and the effect of time-dependent coefficient $ \varepsilon(t) $, our result will include and generalize the existing results of such equations with constant coefficients. It is worth noting that the nonlinear term cannot be treated by the common decomposition techniques, and this paper overcomes the difficulty by dealing with it as a whole.
Linear Rayleigh-Taylor instability for compressible viscoelastic fluids
Authors: Liu Caifeng
Published: April 2023

In this paper, we consider the linear Rayleigh-Taylor instability of an equilibrium state of 3D gravity-driven compressible viscoelastic fluid with the elasticity coefficient $ \kappa $ is less than a critical number $ \kappa_{c} $ in a moving horizontal periodic domain. We first construct the maximal growing mode solutions to the linearized equations by studying a family of modified variational problems, and then we prove an estimate for arbitrary solutions to the linearized equations.
Estimation of the general population parameter in single- and two-phase sampling
Authors: Shahbaz Saman Hanif , Fayomi Aisha , Shahbaz Muhammad Qaiser
Published: April 2023

Estimation of population characteristics has been an area of interest for many years. Various estimators of the population mean and the population variance have been proposed from time-to-time with a view to improve efficiency of the estimates. In this paper, we have proposed some estimators for estimation of the general population parameters. The estimators have been proposed for single-phase and two-phase sampling using information of single and multiple auxiliary variables. The bias and mean square errors of the proposed estimators have been obtained. Some comparison of the proposed estimators has been done with some existing estimators of mean and variance. Some specific cases of the proposed estimators have been discussed. Simulation and numerical study have also been conducted to see the performance of the proposed estimators.