scholarly journals The physiological reaction in the local breed and introduced silkworm breeds on the difference in conditions of detention of the wintering eggs

2021 ◽  
Vol 210 (07) ◽  
pp. 35-46
Author(s):  
Gyul'nar Bagirova ◽  
Hokuma Kulieva
Keyword(s):  
Aqueous Solutions ◽  
Introduced Species ◽  
Strong Response ◽  
Local Breed ◽  
Physiological Reaction ◽  
Content Selection ◽  
Local Species ◽  
The Difference ◽  
The Impact ◽  
Positive Effect

Abstract. The purpose of this study is the ascertainment of to the physiological responses to exogenous exposure to aqueous solutions of the drug “Violet-K” (C24H28N3Cl) in the phase of wintering eggs of the local and introduced silkworm species. Methods. The research was carried out according to the methodology developed by us for the content, selection and processing of material [9], [10]. Statistical analysis was performed according to G. F. Lakin [11]. Results. It was found that in the absence of sharp fluctuations of the temperature and air humidity, the effect of exposure to water and 0.01% and 0.001 % aqueous solutions of the “Violet-K” preparation on hibernating eggs causes a response of caterpillars at younger ages during molting, by the fifth age this effect diminishes. A strong response to the impact in terms of weight of caterpillars was revealed for the introduced silkworm species: against the background of minor fluctuations in the “Oragase” variant for caterpillars “Sverico-sari” the difference with the control by age is 16,4 % (III), 143,3 % (IV) and 27,3 % (V). The introduced species “Oragase” often differs from the “Sverico-sari” and the local breed “Veten” by the presence of negative responses: the weight of caterpillars after exposure compared to the control corresponds to + 43.7 % (III), + 65.0 % (IV), –36.2 % (V). It was found that the content of wintering grains in water and aqueous solutions of the “Violet-K” preparation leads to the weight increase of the silk shell: by 54.4–80.5 % (p < 0.05 and 0.001) in the local species, as well as by 11.4–16.1 % (0.001 %) and 2.7 % (0.01 % solution “Violet K”) p < 0.05 and 0.001. The species “Oragase” differs in this effect compared with the control, particularly, in the comparison with control, the impact promotes to a significant decrease in the weight of the silk shell by 33 % (–78.5 mg) and 22.5 % (–49.0 mg), p < 0.001. The impact is reflected in the date of departure of butterflies and the number of laid eggs, and only in introduced species: the positive effect compared to the control, on average on 1 female was 3.6–4.8 times higher (“Sverico-sari”) and 1.1 times (“Oragase”).

Prevalence of ADHD in children born by mothers consuming Frankincense during pregnancy

2021 ◽  
Author(s):  
Alimohammad Ranjbar ◽  
Elahe Kamali Ardakani ◽  
Rahele Zareshahi
Keyword(s):  
Data Gathering ◽  
Control Group ◽  
Case Group ◽  
Dsm V ◽  
History Of ◽  
The Difference ◽  
The Impact ◽  
The Relationship ◽  
The Brain ◽  
Positive Effect

Aims: In Iranian culture, due to some narratives from the prophet Mohammad about the use of frankincense during pregnancy for increasing IQ in children, some women consume frankincense during expectancy. This study's goal is to evaluate the relationship between frankincense used during pregnancy and the incidence of ADHD. Methods: In this study, the case group comprised children 4-17 years old referring to Shahid Chamran Pharmacy in Yazd from summer to winter 2018 for receiving Methylphenidate, those with whom a psychologist had identified ADHD based on DSM-V factors.  The control group included children of the same age group but without ADHD. For data gathering, a checklist was used with some questions on smoking, family history of ADHD, presence/absence of a specific disease during pregnancy, frankincense used during pregnancy, and a chemical medication consumed during pregnancy. Results: The main result demonstrated that the children whose mothers used frankincense during pregnancy were 0.67 times less likely to be affected by ADHD than those whose mothers did not use this substance. However, the difference failed to be statistically significant (P>0.05). Conclusion: Some studies report that frankincense can bear a positive effect on the development of the brain and possibly adequate formation of dendrites trees, axons and induce proper communication between them, so the impact of frankincense on the brain may be justified by its protective effect against the hyperactive child.

scholarly journals The Impact of Color Rendering on Visual Fatigue in Interior Zone of Tunnel

2021 ◽  
Vol 276 ◽  
pp. 02008
Author(s):  
Peng Liu ◽  
LiLi Dong ◽  
YingQi Jiang
Keyword(s):  
Traffic Safety ◽  
Visual Fatigue ◽  
Mesopic Vision ◽  
The Difference ◽  
Fatigue Evaluation ◽  
Critical Fusion Frequency ◽  
Color Rendering ◽  
Human Eyes ◽  
The Impact ◽  
Positive Effect

Judicious use of lamps is of profound significance to improve the internal traffic safety of tunnels. This study evaluated the effect of LED color on human visual fatigue under mesopic vision category. According to the difference of human eyes’ response to different wavelengths of light radiation, the mesopic vision spectral luminous efficiency curve is applied to the visual fatigue evaluation methods. Taking the critical fusion frequency as the physiological index, the detection experiment of human visual fatigue was carried out in the simulated tunnel environment. The results show that spectrum with high color rendering index has a positive effect on alleviating drivers’ visual fatigue, and is more suitable for tunnel interior lighting.

scholarly journals China’s Carbon Emissions and Trading Pilot, Political Connection, and Innovation Input of Publicly Listed Private Firms

2020 ◽  
Vol 17 (17) ◽  
pp. 6084
Author(s):  
Wei Liu ◽  
Chunquan Yu ◽  
Shixiong Cheng ◽  
Jingyi Xu ◽  
Yuzhao Wu
Keyword(s):  
Carbon Emissions ◽  
Natural Experiment ◽  
Moderating Effect ◽  
Private Firms ◽  
Political Connection ◽  
Difference In Differences ◽  
The Difference ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect

Taking China’s carbon emissions and trading pilot (CCETP) as a quasi-natural experiment, this paper examines the impact of CCETP on publicly listed private firms’ innovation input and the moderating effect of the firms’ political connection based on the difference-in-differences model. The results show that CCETP has a significantly positive effect on the innovation input of Chinese publicly listed private firms. Moreover, the political connection of executives exhibits a positive moderating effect on CCETP’s impact on innovation input. Meanwhile, the effect is more significant in regions with high environmental protection investment and large publicly listed private firms. The conclusions could provide some policy enlightenment for China’s carbon market, as well as a rational adjustment of the relationship between political connection and innovation input of publicly listed private firms in the future.

scholarly journals HOW DOES THE G20 SUMMIT AFFECT LAND MARKET? EVIDENCE FROM CHINA

2021 ◽  
Vol 25 (6) ◽  
pp. 432-445
Author(s):  
Xuejun Du ◽  
Zhonghua Huang
Keyword(s):  
Land Market ◽  
Synthetic Control ◽  
Control Methods ◽  
Land Prices ◽  
Synthetic Control Methods ◽  
Preparation Period ◽  
Land Transaction ◽  
The Difference ◽  
The Impact ◽  
Positive Effect

We employ the difference-in-difference and synthetic control methods to investigate the capitalization effect of hosting the G20 Summit on land market, based on China’s land transaction dataset from 2011 to 2019. We find that hosting the G20 Summit has a significant positive effect on land prices in the host city, increasing land prices by over 22.6% compared to comparable cities. The impact of hosting the G20 Summit on land prices is larger in the post-G20 period than in the preparation period. Further, hosting the G20 Summit has heterogeneous and distributional effects on land prices. The capitalization effects of venue construction and transportation infrastructure upgrading on land prices are the main channels.

scholarly journals Use of foliar fertilizers on soybeans in the Republic of Tatarstan

2020 ◽  
Vol 17 ◽  
pp. 00069
Author(s):  
Valeria Kolesar ◽  
Gulsia Sharipova ◽  
Diana Safina ◽  
Radik Safin
Keyword(s):  
Control Sample ◽  
Soybean Seed ◽  
Weather Conditions ◽  
Yield Increase ◽  
Phosphorus Accumulation ◽  
Negative Effect ◽  
The Difference ◽  
The Republic ◽  
The Impact ◽  
Positive Effect

In 2018, studies were conducted to assess the impact of foliar feeding with complex fertilizers on the yield and grain quality of two soybean varieties. Weather conditions throughout the year were noted periodically dry in May, June and August. Metallocene® fertilizers with different mineral nutrition elements were used for soybean spraying. The fertilizers were used for spraying in the soybean beginning bloom stage. Epy control served as a variant without foliar feeding. It was found that the variety Annushka in the conditions of 2018 was more productive than the variety Milyaushaa. The difference between the varieties in the control was 0.3 t/ha. Low yield in the control sample was associated with the negative effect of drought on the existing root system and the nudeles on it. Spraying Annushka crops by Metallocene® A with copper has high positive effect on the yield. The yield increase from this fertilizer was 0.72 t/ha. In case with Milyaushaa, the best indicators were achieved by Metallocene® D spraying with manganese. In case the yield increased by 0.79 t/ha. The use of foliar feeding had positive effect on soybean seed size. The maximum 1000 seed weight Annushka was for Metallocene® A with copper. For Milyaushaa the largest seeds were when using Metallocene® D with manganese. Foliar feeding by Metallocene® D with manganese had positive effect on phosphorus accumulation in seeds.

scholarly journals The impact of country reimbursement programmes on living kidney donations

2020 ◽  
Vol 5 (8) ◽  
pp. e002596
Author(s):  
Abu Bakkar Siddique ◽  
Vandana Apte ◽  
Sigrid Fry-Revere ◽  
Yanhong Jin ◽  
Naoru Koizumi
Keyword(s):  
Living Donor ◽  
Scientific Evidence ◽  
Donor Kidney ◽  
Country Level ◽  
The Difference ◽  
End Stage ◽  
The Impact ◽  
Donor Kidney Transplantation ◽  
Positive Effect ◽  
Living Donor Kidney

IntroductionLiving-donor kidney transplantation is the gold standard treatment for patients with end-stage kidney disease. However, potential donors ubiquitously face financial as well as logistical barriers. To remove these disincentives from living kidney donations, the governments of 23 countries have implemented reimbursement programmes that shift the burdens of non-medical costs from donors to the governments or private entities. However, scientific evidence for the effectiveness of these programmes is scarce. The present study investigates whether these reimbursement programmes designed to ease the financial and logistical barriers succeeded in increasing the number of living kidney donations at the country level. The study examined within-country variations in the timing of such reimbursement programmes.MethodThe study applied the difference-in-difference (two-way panel fixed-effect) technique on the Poisson distribution to estimate the effects of these reimbursement programmes on a 17 year long (2000–2016) dataset covering 109 countries where living donor kidney transplants were performed.ResultsThe results indicated that reimbursement programmes have a statistically significant positive effect. Overall, the model predicted that reimbursement programmes increased country-level donation numbers by a factor of 1.12–1.16.ConclusionReimbursement programmes may be an effective approach to alleviate the kidney shortage worldwide. Further analysis is warranted on the type of reimbursement programmes and the ethical dimension of each type of such programmes.

Ambient Temperature And Nest Temperature Variation In Enclosed Nests (Spanish Sparrow) And Open-Cup Nests (Iberian Azure-Winged Magpie)

2013 ◽  
Vol 37 (1) ◽  
pp. 14-24
Author(s):  
Paulo A. M. Marques
Keyword(s):  
Ambient Temperature ◽  
Temperature Variation ◽  
Life Histories ◽  
The Body ◽  
Nest Temperature ◽  
Buffer Effect ◽  
Night Time ◽  
The Difference ◽  
The Impact ◽  
Positive Effect

Abstract Temperature plays a central role in the life of birds, especially during egg incubation and nestling thermal brooding. I investigated nest temperature variation relative to ambient temperature during incubation in an enclosed nest-builder species (Spanish sparrow Passer hispaniolensis) and an open-cup nest-builder species (Iberian azure-winged magpie Cyanopica cooki). The data for empty enclosed nests showed that the nest structure acted as a temperature buffer which reduced the impact of night-time temperature variation within the nest. The buffer effect was reduced as ambient temperature increased at dawn. The presence of an adult increased the difference between nest temperature and ambient temperature, and dissociated its variation from the ambient temperature variation. The enclosed nest also retained the body heat released by an adult in the nest. Both effects had a positive effect on the temperature balance in the nest. By contrast, open-cup nest temperature was more affected by the ambient temperature, although it did not affect the egg temperature directly. Thus the absence of an incubating parent would endanger the hatchability in open-cup nests more rapidly than in enclosed nests. The life histories of the investigated species correspond to these findings, i.e. a more pronounced presence of the female in the Iberian azure-winged magpie nests.

scholarly journals The Impact of a Good Season Start on Team Performance in Elite Handball

2016 ◽  
Vol 50 (1) ◽  
pp. 195-202 ◽  
Author(s):  
Carlos Lago-Peñas ◽  
María A. Fernández-Villarino ◽  
Iván González-García ◽  
Patricio Sánchez-Fernández ◽  
Jaime Sampaio
Keyword(s):  
Team Performance ◽  
Regression Models ◽  
Fine Tuning ◽  
Final Position ◽  
Linear Regression Models ◽  
Annual Budget ◽  
The Difference ◽  
The Impact ◽  
Positive Effect ◽  
High Range

AbstractThe aim of the current study was (i) to identify how important was a good season start in relation to elite handball teams’ performance, and (ii) to examine if this impact was related to the clubs’ financial budget. The match performances and annual budgets of all teams were collected from the Spanish Professional Handball League during ten seasons. The dependent variable was the difference between the ranking of each team in accordance to the annual budget and the ranking of each team at the end of the season. A k-means cluster analysis classified the clubs according to their budget as High Range Budget Clubs (HRBC), Upper-Mid Range Budget Clubs (UMRBC), Lower-Mid Range Budget Clubs (LMRBC) and Low Range Budget Clubs (LRBC). Data were examined through linear regression models. Overall, the results suggested that the better the team performance at the beginning of the season, the better the ranking at the end of the season. Each position in the ranking above expected in accordance to the budget of the teams in Rounds 3, 4 or 5 improved by 0.47, 0.50 or 0.49, respectively, in the ranking at the end of the season (p<0.05). However, the impact of the effect depended on the clubs’ annual budget. For UMRBC, LMRBC and LRBC a good start to the season had a positive effect on the final outcome (p<0.05). Nevertheless, for HRBC, a good or a bad start of the season did not explain their final position. These variables can be used to develop accurate models to estimate final rankings. UMRBC, LMRBC and LRBC can benefit from fine-tuning preseason planning in order to accelerate the acquisition of optimal performances.

Evaluation of the impact of public investment programs on social and economic performance of territories

2019 ◽  
pp. 109-123
Author(s):  
I. E. Limonov ◽  
M. V. Nesena
Keyword(s):  
Bayesian Modeling ◽  
Positive Impact ◽  
Public Investment ◽  
Difference In Differences ◽  
The Public ◽  
Export Activity ◽  
Regional Investment ◽  
The Difference ◽  
The Impact ◽  
Development Institution

The purpose of this study is to evaluate the impact of public investment programs on the socio-economic development of territories. As a case, the federal target programs for the development of regions and investment programs of the financial development institution — Vnesheconombank, designed to solve the problems of regional development are considered. The impact of the public interventions were evaluated by the “difference in differences” method using Bayesian modeling. The results of the evaluation suggest the positive impact of federal target programs on the total factor productivity of regions and on innovation; and that regional investment programs of Vnesheconombank are improving the export activity. All of the investments considered are likely to have contributed to the reduction of unemployment, but their implementation has been accompanied by an increase in social inequality.

Impact of Digitalization on Service Work in Knowledge-Intensive Business Services: An Empirical Study in Tax Consultancies

2019 ◽  
Vol 3 (4) ◽  
pp. 209-222
Author(s):  
Philipp K. Görs ◽  
Henning Hummert ◽  
Anne Traum ◽  
Friedemann W. Nerdinger
Keyword(s):  
Work Engagement ◽  
Service Work ◽  
Psychological Consequences ◽  
Business Services ◽  
Knowledge Intensive Business Services ◽  
Positive Effects ◽  
Knowledge Intensive ◽  
The Impact ◽  
Positive Effect ◽  
Special Case

Digitalization is a megatrend, but there is relatively little knowledge about its consequences for service work in general and specifically in knowledge-intensive business services (KIBS). We studied the impact of digitalization on psychological consequences for employees in tax consultancies as a special case of KIBS. We compare two tax consulting jobs with very different job demands, those of tax consultants (TCs) and assistant tax consultants (ATCs). The results show that the extent of digitalization at the workplace level for ATCs correlates significantly positively with their job satisfaction. For TCs, the same variable correlates positively with their work engagement. These positive effects of digitalization are mediated in the case of ATCs by the impact on important job characteristics. In the case of TCs, which already have very good working conditions, the impact is mediated by the positive effect on self-efficacy. Theoretical and practical consequences of these results are discussed.

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