transition period
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2022 ◽  
Vol 9 ◽  
Author(s):  
Peijun Ju ◽  
Wenchao Yan ◽  
Jianliang Liu ◽  
Xinwei Liu ◽  
Liangfeng Liu ◽  
...  

As a sensitive, observable, and comprehensive indicator of climate change, plant phenology has become a vital topic of global change. Studies about plant phenology and its responses to climate change in natural ecosystems have drawn attention to the effects of human activities on phenology in/around urban regions. The key factors and mechanisms of phenological and human factors in the process of urbanization are still unclear. In this study, we analyzed variations in xylophyta phenology in densely populated cities during the fast urbanization period of China (from 1963 to 1988). We assessed the length of the growing season affected by the temperature and precipitation. Temperature increased the length of the growing season in most regions, while precipitation had the opposite effect. Moreover, the plant-growing season is more sensitive to preseason climate factors than to annual average climate factors. The increased population reduced the length of the growing season, while the growing GDP increased the length of the growing season in most regions (8 out of 13). By analyzing the impact of the industry ratio, we found that the correlation between the urban management of emerging cities (e.g., Chongqing, Zhejiang, and Guizhou) and the growing season is more significant, and the impact is substantial. In contrast, urban management in most areas with vigorously developed heavy industry (e.g., Heilongjiang, Liaoning, and Beijing) has a weak and insignificant effect on plant phenology. These results indicate that different urban development patterns can influence urban plant phenology. Our results provide some support and new thoughts for future research on urban plant phenology.


2022 ◽  
Author(s):  
Hannah Hussey ◽  
Mary-Ann Davies ◽  
Alexa Heekes ◽  
Carolyn Williamson ◽  
Ziyaad Valley-Omar ◽  
...  

Background Emerging data suggest that SARS-CoV-2 Omicron variant of concern (VOC)is associated with reduced risk of severe disease. The extent to which this reflects a difference in the inherent virulence of Omicron, or just higher levels of population immunity, is currently not clear. Methods RdRp target delay (RTD: a difference in cycle threshold value of RdRp - E > 3.5) in the Seegene AllplexTM 2019-nCoV PCR assay is a proxy marker for the Delta VOC. The absence of this proxy marker in the transition period was used to identify suspected Omicron VOC infections. Cox regression was performed for the outcome of hospital admission in those who tested positive for SARS-CoV-2 on the Seegene AllplexTM assay from 1 November to 14 December 2021 in the Western Cape Province, South Africa, public sector. Vaccination status at time of diagnosis, as well as prior diagnosed infection and comorbidities, were adjusted for. Results 150 cases with RTD (proxy for Delta) and 1486 cases without RTD (proxy for Omicron) were included. Cases without RTD had a lower hazard of admission (adjusted Hazard Ratio [aHR] of 0.56, 95% confidence interval [CI] 0.34-0.91). Complete vaccination was protective of admission with an aHR of 0.45 (95%CI 0.26-0.77). Conclusion Omicron has resulted in a lower risk of hospital admission, compared to contemporaneous Delta infection in the Western Cape Province, when using the proxy marker of RTD. Under-ascertainment of reinfections with an immune escape variant like Omicron remains a challenge to accurately assessing variant virulence.


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Di Song ◽  
Aiqi Wu ◽  
Xiaotong Zhong ◽  
Shufan Yu

Purpose This study aims to introduce an important temporal dimension to the research on institution and entrepreneurship in the transition period. This study develops the concept of pre-reform institutional embeddedness, and explores its impact on entrepreneurial reinvestment of private firms in China’s transition economy. Design/methodology/approach The authors used secondary data of a nationally representative sample of China’s private firms collected in the early days of the institutional transition period and applied ordinary least squares regressions and the Baron and Kenny approach to test the theoretical model. Findings Pre-reform institutional embeddedness has a negative impact on entrepreneurial reinvestment of private firms in the transition period. This relationship is mediated by guanxi-induced employment, such that pre-reform institutional embeddedness promotes guanxi-induced employment, which in turn discourages a private firm to reinvest. Additionally, the negative impact of guanxi-induced employment on entrepreneurial reinvestment is reduced when decentralization of decision-making is used. Practical implications First, entrepreneurs should be aware of pre-reform institutional embeddedness’ negative influence on firms’ risk-taking abilities and incentives. Private firms already constrained by this connection could alleviate the negative impacts through a widespread delegation of decision-making authority. Second, policymakers should be cautious about improper government-business relationships, which may discourage private firms from fully pursuing entrepreneurial growth opportunities. Originality/value This paper makes theoretical contributions to the literature on entrepreneurial reinvestment, embeddedness perspective of entrepreneurship and imprinting theory.


2022 ◽  
Vol 6 (1) ◽  
Author(s):  
Eva Marvia ◽  
I Gusti Ayu Mirah Adhi ◽  
Saupi Yaumil Mahfuz ◽  
Sukardin Sukardin

Adolescence is a transition period recognized from physical, emotional, and psychological changes happening between 10-19 years of age. Teenagers’ health problems certainly need comprehensive and integrated treatment given through IEC, counseling, peer counseling, clinical/medical services, and referrals, including the Integrated Service Post program as a form of community participation in health services. Therefore, the integrated-service-post program should be able to expand its service range; not only for toddlers, pregnant and breast-feeding women, but also other strategic targets such as teenagers and the elderly. The purpose of this study was to determine the correlation between family support and adolescent compliance in joining the family posyandu around the working area of the Public Health Center of Aikmel.This research was a descriptive correlation study using an observational approach. The population of this study was 399 teenagers and the samples were 134 drawn using systematic cluster sampling. A questionnaire was used to measure family support and observation sheets were used to find out adolescent compliance in joining the program. The data were then analyzed using the chi-square test.The results showed that the highest participation was shown by teenagers between 12-16 years of aged (70.1%) and the lowest participation was performed by adolescents aged 17-25 years (29.0%). Additionally, based on gender, girls participated more than boys (the participation of girls was 53%). Moreover, the result showed that the higher the education, the higher the family support. Finally, the levels of compliance were 53.7% (compliant) and 56.3% (non-compliant). The statistical test showed that ρ value = 0.009 (ρ < 0.05).Therefore, it can be concluded that there was a significant correlation between family support and adolescent compliance in joining the Integrated Service Post program for families around the working area of the Public Health Center of Aikmel. Hopefully, paramedics/cadres can provide counseling about the importance of family support to increase teenagers’ compliance in joining the program.


2022 ◽  
Vol 21 ◽  
pp. 44-50
Author(s):  
Valeriy Kozytskyy ◽  
Nelya Pabyrivska ◽  
Galyna Beregova

The economies of almost every country in the whole word have been suffered from coronavirus pandemic consequences. The damage was especially hard for labor markets. The large magnitude of demand and production shocks that was caused by COVID-19 significantly disturbed the dynamics of output, wages and prices. The research problem addressed in this paper focuses on dynamic properties of wages and prices behavior influenced by shocks with different magnitudes and types. We apply a system dynamic approach to conduct the simulations of economic variables and investigate the possibility of their convergence to some stable path. We examine the impact of demand and production shocks on the output and prices as well as on wage and inflation behavior. It is proved that values of models parameters are crucial for existing of new steady state and convergence of economic variables. The paper determines the bifurcation points that separate different modes of transition period in moving towards or away from equilibrium. The research includes the investigation of the impact of economy’s original state and emphasizes the importance of initial point of the system for the next its dynamics after shock. The research results derived in the paper serves as a useful learning tool to develop a discussion of the policy design issues related to reduction of negative impact of severe and unanticipated disturbance like COVID-19.


2022 ◽  
Vol 13 (1) ◽  
pp. 107-108
Author(s):  
Siham Belmourida ◽  
Meriame Meziane ◽  
Nadia Ismaili ◽  
Laila Benzekri ◽  
Badreddine Hassam ◽  
...  

Sir, Pemphigus herpetiformis (PH) was originally described by Jablonska et al. in 1975. Clinically, PH presents itself as a herpetiform dermatitis with immunopathological characteristics of pemphigus [1,2]. We report an exceptional case of typical pemphigus vulgaris (PV) relapsing after 36 years in PH. A 65-year-old patient, followed for PV for 36 years and treated with corticosteroid therapy with a remission for more than thirty years, consulted for pruriginous lesions evolving for the previous eight months. A dermatological examination revealed urticariform pruriginous ring lesions surmounted by small peripheral vesicles spread throughout the body (Fig. 1), sparing the mucous membranes, and without Nikolsky’s sign. After two non-specific skin biopsies, the histological examination revealed an intraepidermal bubble with acantholytic cells and eosinophilic spongiosis (Figs. 2a and 2b). Direct immunofluorescence confirmed the diagnosis of pemphigus and indirect immunofluorescence was at the upper limit. The diagnosis of a PV relapse in PH was retained and a dapsone-based treatment was initiated at a dose of 150 mg/day and stopped seven days later when met with hemolytic anemia. Oral corticosteroid therapy involving prednisone at a dose of 1 mg/kg/day was initiated but, given the persistence of the pruritus, the decision was to combine methotrexate at a dose of 12.5 mg/week. A good evolution and a decline within eight months were observed. An improved pruritus and the disappearance of the skin lesions were achieved after one month of treatment. PV and PH are two different anatomical and clinical entities of the autoimmune disease pemphigus, with distinct clinical, histopathological, and immunopathological characteristics [1,2]. Our observation documents a complete phenotypic “switch” of pemphigus with a transition from PV to PH both clinically, histologically, and immunologically. Several rare cases of PV switching to superficial pemphigus (SP) (“phenotypic switch”) have, since 1991, been reported, with a higher frequency this direction than otherwise; the transition period varies from six months to twenty years [3]. To the best of our knowledge, no case has been described of a progression from PV to PH. Having observed one firsthand, we are first to describe the case of a complete phenotypic switch from PV to PH. The mechanism of such a transition remains poorly understood and is often observed during a relapse. Some authors suggest that the effect of immunosuppressants on the desmoglein DSG3 more marked than on DSG1 could explain the relapse of PS in PH [3,4]. Future studies on the immunological factors and predictors of PV relapses after the discontinuation of treatment would be useful to better understand the mechanisms of a relapse in pemphigus, with or without a phenotypic transition.


2022 ◽  
Vol 9 (2) ◽  
pp. 259
Author(s):  
Yudha Aditya Fiandra ◽  
NFn Ambiyar ◽  
M Giatman ◽  
NFn Usmeldi ◽  
Nurhasan Syah

In the current Covid-19 transition period, it is very necessary to use innovative vocational learning models in digital models. The number of vocational learning models using ICT as the main tool during the pandemic needs to be studied further on how the model is implemented and its effectiveness. The problem that arises is that we do not know whether the use of ICT tools in vocational learning is effectively used. This study aims to empirically verify the effectiveness of ICT in vocational education learning during the Covid-19 transition period. Meta-Analysis is used as a method to conduct this research. There are 30 latest articles reviewed during the year of 2020 to 2021. All articles are classified based on the author, year of publication, the ICT device or application used, and the results of the post-test experimental and control classes. The results are obtained after the calculation using the effect size (ES) formula. The calculation results show that the learning using ICT as a tool during the Covid-19 pandemic has a high effect (1.28) on cognitive achievement in vocational education. The conclusion of this study is that ICT-assisted learning has a high level of effectiveness and is suitable for learning in the vocational field. Then, the dominant multimedia device or application used in the vocational learning in Indonesia is the computer technology network and it is the most widely used for the application of ICT in learning.


2022 ◽  
Vol 78 (01) ◽  
pp. 6607-2022
Author(s):  
XINRU MA ◽  
CHANGHONG GAO ◽  
MINGMAO YANG ◽  
BINGBING ZHANG ◽  
CHUANG XU ◽  
...  

This study aimed to present the characteristics of and to predict subclinical hypocalcemia in dairy cows during the transition period using blood analytes. We examined fluctuations in plasma calcium (Ca), phosphorus (P), bone metabolic markers carboxy-terminal telopeptide of type I collagen (CTX), fibroblast growth factor (FGF23), 1,25(OH)2D3, parathyroid hormone, and other blood biochemical analytes from prepartum week 2 to postpartum day 14 in 116 multiparous high-producing Holstein cows from a free-stall barn dairy farm. With a plasma concentration of Ca <2.0 mmol/L as a criterion for the diagnosis of subclinical hypocalcemia, 64 cows were classified as normocalcemic, and 52 cows as subclinically hypocalcemic. Among the 52 hypocalcemic cows, 50 were detected on postpartum days 1 or 3, and 2 on postpartum day. The subclinically hypocalcemic cows were in a state of low bone turnover in the prepartum period, with low plasma concentrations of Ca and CTX. The subclinically hypocalcemic cows showed signs of a P regulation disorder in the prepartum period. This was marked by high plasma concentrations of P and low concentrations of 1,25(OH)2D3 and FGF23, which is also considered to be the cause of the low bone turnover. The results of a multiple logistic regression model showed that prepartum plasma concentrations of FGF23, CTX, and Ca were ideal predictors of postpartum subclinical hypocalcemia in dairy cows, using the model equation 38.8-0.052*FGF23-0.492*CTX-10.645*Ca, with a score of > 0 considered as an indication of increased risk of subclinical hypocalcemia after calving. The scoring rule had an accuracy of 79.3%, sensitivity of 76.9%, and specificity of 81.3%. The plasma concentrations of FGF23, CTX, and Ca were ideal predictors of postpartum subclinical hypocalcemia in dairy cows.


2022 ◽  
pp. 146-157
Author(s):  
Luka Dániel

Topic of the study. During the harsh Stalinization from 1948 agriculture had to be collectivized while land was not nationalized by decree as the Bolsheviks did in Russia in 1917. The Soviet legal system was a pattern for jurists but the differences made the transition to “socialism” more rugged and controversial. The legal scholars had to interpret a situation which had to develop further to full “socialization”. In order to do that, a “cooperative law” and a “land law” had to be created and taught as part of “agricultural law”. Research questions and methods. Land law consisted of regulations regarding private farmers and collective agricultural producers (cooperatives, state farms etc.), theoretically in the whole research period. How did the agrarian, cooperative and land policy affect legal theory on land tenure system? What kind of scientific dispute emerged on this matter and how did the attempts of codification of land law affect legal education? Various types of sources were evaluated, for instance protocols of council meetings of the faculty of law of two universities, archival sources, articles and studies from authors who taught land law and took part in its debate and codification. Results and conclusions. Law was used as a tool to boost transformation, and the lawmakers and jurists faced a paradox situation in which there was a need of codification of land law and to make it independent from other branches of law. On the one hand, jurists argued like Gyula Eörsi and Miklós Világhy that civil law had primatus in the legal system and property relations had to be included in that part of legislation during the “transition period”. On the other hand, many jurists, for instance Iván Földes, Imre Seres claimed that cooperative law or/and land law were separated branches of law despite the fact that mass collectivization was not completed until the spring of 1961.


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