scholarly journals Avaliação de diferentes doses de inseticida e fungicida no tratamento de sementes de trigo sob a influência no desenvolvimento da cultura nas fases iniciais

2021 ◽  
Vol 4 (2) ◽  
pp. 13-20
Author(s):  
Tatiane Solarski ◽  
◽  
James Matheus Ossacz Laconski ◽  
Paulo Henrique da Silva Nogueira ◽  
Lucas Belcamino Vila Real ◽  
...  
Keyword(s):  
The Other ◽  
Initial Development ◽  
Positive Effects ◽  
Negative Effect ◽  
Methyl Thiophanate ◽  
Wheat Seeds

The objective of the work was to evaluate the effect of insecticide and fungicide in the treatment of wheat seeds. The treatments were, T1: control, T2: thiamethoxam (1.5 ml / kg of seed), T3: thiamethoxam (3 ml / kg of seed), T4: pyraclostrobin + methyl thiophanate + fipronil (PTF) (2.0 ml / kg of seed) and T5: PTF (4.0 ml / kg of seed). The treatment with TPF in the dose of 4.0 ml / kg of seed stood out over the other treatments, providing positive effects on the development of the culture, since thiametoxam in the dose of 3.5 ml / kg of seed, showing no difference between treatments, and provided a negative effect on the initial development of the plants.

Humor usage by sellers and sales performance: The roles of the exploration relationship phase and types of humor

2018 ◽  
Vol 33 (2) ◽  
pp. 5-23 ◽  
Author(s):  
Renaud Lunardo ◽  
Laurent Bompar ◽  
Camille Saintives
Keyword(s):  
Sales Performance ◽  
Mediating Effect ◽  
The Other ◽  
Subsequent Performance ◽  
Positive Effects ◽  
Negative Effect ◽  
The Relationship ◽  
Exploration Phase

For sellers, the efficacy of humor to create trusty relationships and achieve performance with buyers remains unknown. Specifically, the question of if – and when – sellers should use humor still deserves examination. To answer this question, this research builds on the four phases that characterize long-term relationships (exploration, buildup, maturity, and decline) to argue that humor might be inefficient when used in the exploration phase. Two studies conducted among buyers ( n = 322) then reveal that although constructive humor has overall positive effects on the performance of the sellers through a mediating effect of trust, this effect is not observed during the exploration phase. The other type of humor – offensive humor – has a negative effect regardless of the phase in which it is used. Taken together, these results first indicate that sellers may gain from using humor only if the relationship with their buyers is not at the exploration phase since this particular phase is the only one when a negative effect of humor on trust and subsequent performance is observed. Furthermore, these results indicate that offensive should be avoided in all the relationship phases.

INFLUENCE OF CYTOPLASM ON SEED SETTING IN ALFALFA

1978 ◽  
Vol 58 (2) ◽  
pp. 341-346 ◽  
Author(s):  
R. MICHAUD ◽  
T. H. BUSBICE
Keyword(s):  
Seed Set ◽  
Pollen Grains ◽  
The Other ◽  
Seed Setting ◽  
Positive Effects ◽  
Male Function ◽  
Reciprocal Differences ◽  
Negative Effect ◽  
Medicago Sativa L ◽  
Partial Hybrid

Differences in cross-fertility were observed when four alfalfa (Medicago sativa L.) clones designated A, B, C, and D were used reciprocally as male or female. The clone C cytoplasm was determined to be the source of these reciprocal differences. Plants with clone C cytoplasm performed poorly as male parents, but normally as female parents. The mode of action of the clone C cytoplasm on the male function was not determined, but it appeared to be different from that which causes incomplete pollen development. Plants containing clone C cytoplasm produced an abundance of normal appearing pollen grains. In general, clone C cytoplasm had a negative effect on seed set, clone A and D cytoplasms had positive effects, and clone B cytoplasm had no effect relative to the other three. Selection among cytoplasms in alfalfa for improved seed set and for use in the production of partial-hybrid varieties was discussed.

Pengaruh Luka Iris Pada Tikus Dengan Paparan Hidrogen Peroxida 3% terhadap Epitelisasi dan Pembentukan Eksudat pada Permukaan Epitel Kulit.

2020 ◽  
Vol 17 (2) ◽  
pp. 172
Author(s):  
HARMAN AGUSAPUTRA ◽  
MARIA SUGENG ◽  
AYLY SOEKAMTO ◽  
ATIK WULANDARI
Keyword(s):  
Hydrogen Peroxide ◽  
Wound Healing ◽  
The Other ◽  
Delayed Wound Healing ◽  
Peroxide Group ◽  
Hemostatic Effect ◽  
Significant Difference ◽  
Negative Effect ◽  
Wound Healing Effect ◽  
Epithelial Growth

<p><strong>Abstract</strong></p><p><strong>Background:</strong> Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as antiseptic has been used frequently to clean woundsin in hospitals and clinics. Hydrogen peroxide has the effectof strong oxidative that can kill pathogens. It can clean up debris and necrotic tissuesin wounds. Hydrogen peroxidealso has hemostatic effect that can help to stop bleeding. Besides antiseptic effects, hydrogen peroxide i s suspected of having negative effect in wound healing. Hydrogen peroxide presumably could cause delayed wound healing by exudate formation and delayed epithelial growth.</p><p><strong>Method</strong>: This study was conducted in the laboratory using 48 white mice that were divided into 2 groups. All the mice were purposely wounded. Afterwards in one group the wounds were clean up using hydrogen peroxide, while in the other group without hydrogen peroxide as control. The wounds of both groups were observed on day 1, day 3 and day 7. On day 1 and day 3, both groups did not show significant difference.</p><p><strong>R</strong><strong>esult</strong> : on day 7 showed that the wound healing in hydrogen peroxide group were delayed. Fifty percent of them had the formation of exudate and 62.5% of them showed delayed epithelial growth.</p><p><strong>Conclusion </strong>: This study could show hydrogen peroxide as wound antiseptic has delayed wound healing effect.</p><p><strong>Keyword</strong>: hydrogen peroxide, wound healing</p>

Astrobiology and its influence on the renewal of the way we see the world from the teloempathic, educational and astrotheological perspective

2020 ◽  
Vol 19 (4) ◽  
pp. 330-334
Author(s):  
Octavio A. Chon Torres
Keyword(s):  
Natural Sciences ◽  
The Other ◽  
Positive Effects ◽  
The World ◽  
The Way

AbstractThere is a record of the positive effects of astrobiological research for the natural sciences and eventually for their technological use on Earth. However, on the philosophical effects, this is not as visible as the other sciences, which is why it can be assumed that it is a waste of time speculating on astrobioethics or also on the philosophy of astrobiology. This is the reason why this work seeks to identify and sustain the philosophical utility of astrobioethics. To achieve this, this article focuses on three essential aspects: teloempathy, education and astrotheology. Russell's argument about the value of philosophy will be used as a fundamental basis for the usefulness of astrobioethics.

The Value of Information in the Hold-Up Problem

2004 ◽  
Vol 5 (2) ◽  
pp. 177-203 ◽  
Author(s):  
Thomas Pfeiffer
Keyword(s):  
Information System ◽  
Information Structure ◽  
Value Of Information ◽  
The Other ◽  
Information Control ◽  
Ceteris Paribus ◽  
Head Office ◽  
Specific Investments ◽  
Negative Effect ◽  
Central Management

Abstract In the literature, the information structure of the hold-up problem is typically assumed to be exogenous. In this paper, we introduce an additional stage at which the head office may grant individual divisions access to an information system before they undertake their specific investments. Although more information ceteris paribus enhances each divisions’ profits, more information can reduce divisions’ investments and destroy synergies for the other division that would have been generated by the investments. If this negative effect dominates, then information can be harmful for the entire company. Hence, information control can be a subtle force to deal with the hold-up problem to a certain extent. In this paper we analyze those conditions under which information is either harmful or beneficial for central management.

scholarly journals Extending the Coverage of the Trust–Acceptability Model: The Negative Effect of Trust in Government on Nuclear Power Acceptance in South Korea under a Nuclear Phase-Out Policy

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3343
Author(s):  
Seungkook Roh ◽  
Hae-Gyung Geong
Keyword(s):  
South Korea ◽  
Nuclear Power ◽  
Public Acceptance ◽  
Equation Modeling ◽  
Trust In Government ◽  
The Public ◽  
Positive Effects ◽  
Negative Effect ◽  
Nuclear Phase ◽  
Phase Out

This article extends the coverage of the trust–acceptability model to a new situation of nuclear phase-out by investigating the effect of trust on the public acceptance of nuclear power, with South Korea as the research setting. Through the structural equation modeling of a nationwide survey dataset from South Korea, we examined the effects of the public’s trust in the various actors related to nuclear power on their perceptions of the benefits and risks of nuclear power and their acceptance of nuclear power. Contrary to previous studies’ findings, in South Korea, under a nuclear phase-out policy by the government, trust in government revealed a negative impact on the public acceptance of nuclear power. Trust in environmental non-governmental groups also showed a negative effect on nuclear power acceptance. In contrast, trust in nuclear energy authority and trust in nuclear academia both had positive effects. In all cases, the effect of a trust variable on nuclear power acceptance was at least partially accounted for by the trust’s indirect effects through benefit perception and risk perception. These findings strengthen the external validity of the trust–acceptability model and provide implications for both researchers and practitioners.

scholarly journals Weaning Holstein Calves at 17 Weeks of Age Enables Smooth Transition from Liquid to Solid Feed

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1132
Author(s):  
Sarah Schwarzkopf ◽  
Asako Kinoshita ◽  
Jeannette Kluess ◽  
Susanne Kersten ◽  
Ulrich Meyer ◽  
...  
Keyword(s):  
Metabolic Stress ◽  
Live Weight ◽  
The Other ◽  
Smooth Transition ◽  
Blood Metabolites ◽  
Positive Effects ◽  
Weaning Age ◽  
Holstein Calves ◽  
Positive Effect ◽  
Over Time

Development of calves depends on prenatal and postnatal conditions. Primiparous cows were still maturing during pregnancy, which can lead to negative intrauterine conditions and affect the calf’s metabolism. It is hypothesized that weaning calves at higher maturity has positive effects due to reduced metabolic stress. We aimed to evaluate effects of mothers’ parity and calves’ weaning age on growth performance and blood metabolites. Fifty-nine female Holstein calves (38.8 ± 5.3 kg birth weight, about 8 days old) were used in a 2 × 2 factorial experiment with factors weaning age (7 vs. 17 weeks) and parity of mother (primiparous vs. multiparous cows). Calves were randomly assigned one of these four groups. Live weight, live weight gain and morphometry increased over time and were greater in calves weaned later. Metabolic indicators except total protein were interactively affected by time and weaning age. Leptin remained low in early-weaned calves born to primiparous cows, while it increased in the other groups. The results suggest that weaning more mature calves has a positive effect on body growth, and calves born to primiparous cows particularly benefit from this weaning regimen. It also enables a smooth transition from liquid to solid feed, which might reduce the associated stress of weaning.

scholarly journals Effect of seed treatment and foliar spray with fungicides in controlling black point disease of wheat

1970 ◽  
Vol 34 (3) ◽  
pp. 425-434 ◽  
Author(s):  
PK Malaker ◽  
IH Mian
Keyword(s):  
Economic Analysis ◽  
Grain Yield ◽  
Key Words ◽  
Seed Weight ◽  
Seed Treatment ◽  
Foliar Spray ◽  
The Other ◽  
Gross Margin ◽  
Black Point ◽  
Wheat Seeds

The efficacy of seed treatment and foliar spray with fungicides in controlling black point incidence of wheat seeds was evaluated in the field. Two seed treating fungicides, namely Vitavax-200 and Homai-80WP were used @ 0.25% of dry seed weight and foliar spray with Tilt-250EC (0.05%) was applied in six different schedules. Untreated and unsprayed controls were also maintained. Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence. On the other hand, foliar sprays with Tilt-250EC under all the spray schedules except spraying at 70 and 90 DAS significantly minimized the disease severity over unsprayed control. Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield. Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS. Key Words: Seed treatment, foliar spray, black point, wheat. DOI: 10.3329/bjar.v34i3.3968 Bangladesh J. Agril. Res. 34(3) : 425-434, September 2009

On the Chemistry of Tetrabenzyl Thiuram Disulfide and Tetramethyl Thiuram Disulfide with Bis (Triethoxysilylpropyl) Tetrasulfide in Silica Compounds

2003 ◽  
Vol 76 (4) ◽  
pp. 876-891 ◽  
Author(s):  
R. N. Datta ◽  
A. G. Talma ◽  
S. Datta ◽  
P. G. J. Nieuwenhuis ◽  
W. J. Nijenhuis ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Succinic Anhydride ◽  
Dynamic Properties ◽  
The Other ◽  
Resonance Spectroscopy ◽  
Reaction Products ◽  
Negative Effect ◽  
Higher Temperature ◽  
Analytical Tools

Abstract The use of thiurams such as Tetramethyl thiuram disulfide (TMTD) or Tetrabenzyl thiuram disulfide (TBzTD) has been explored to achieve higher cure efficiency. The studies suggest that a clear difference exists between the effect of TMTD versus TBzTD. TMTD reacts with Bis (triethoxysilylpropyl) tetrasulfide (TESPT) and this reaction can take place even at room temperature. On the other hand, the reaction of TBzTD with TESPT is slow and takes place only at higher temperature. High Performance Liquid Chromatography (HPLC) with mass (MS) detection, Nuclear Magnetic Resonance Spectroscopy (NMR) and other analytical tools have been used to understand the differences between the reaction of TMTD and TESPT versus TBzTD and TESPT. The reaction products originating from these reactions are also identified. These studies indicate that unlike TMTD, TBzTD improves the cure efficiency allowing faster cure without significant effect on processing characteristics as well as dynamic properties. The loading of TESPT is reduced in a typical Green tire compound and the negative effect on viscosity is repaired by addition of anhydrides, such as succinic anhydride, maleic anhydride, etc.

Do older workers really reduce firm productivity?

2018 ◽  
Vol 29 (4) ◽  
pp. 521-542 ◽  
Author(s):  
Bokwon Lee ◽  
Joowoong Park ◽  
Jae-Suk Yang
Keyword(s):  
Older Workers ◽  
Value Added ◽  
Manufacturing Firms ◽  
Future Research ◽  
Organisational Performance ◽  
Jel Codes ◽  
Positive Effects ◽  
Financial Conditions ◽  
Negative Effect ◽  
Growing Conditions

In this article, we examine the effect of workforce ageing on company productivity, using an analysis based on Korean firms. We found that an increase in the ratio of workers aged over 50 years to total workers had a negative effect on value added per worker, which was consistent with the findings of most previous studies based on European data. However, the results of the analysis, including various classifications such as size, industry and several financial conditions, revealed that an increase in the ratio of older workers had positive effects on value added per worker in large manufacturing firms under risky or growing conditions. As the productivity of older workers may vary, future research may determine under what conditions – size, industry, region and financial conditions – older workers contribute positively to productivity. Firms with financial troubles or those planning to downsize should be cautious about laying off older workers as an approach to improving organisational performance because these workers contribute positively to productivity under certain conditions. JEL Codes: J24, J54, N3

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