scholarly journals Assessing the Impact of Tides and Atmospheric Fronts on Submesoscale Physical and Bio-Optical Distributions near a Coastal Convergence Zone

2020 ◽  
Vol 12 (3) ◽  
pp. 553
Author(s):  
Richard W. Gould ◽  
Stephanie Anderson ◽  
M. David Lewis ◽  
W. David Miller ◽  
Igor Shulman ◽  
...  
Keyword(s):  
Optical Measurements ◽  
Nepheloid Layer ◽  
Mississippi Sound ◽  
Atmospheric Fronts ◽  
Cycle Maximum ◽  
Frontal Dynamics ◽  
High Turbidity ◽  
Short Time ◽  
The Impact ◽  
Layer Development

Optically-active constituents vary over short time and space scales in coastal waters, and they are impacted by a variety of complex, inter-related forcing processes. As part of the Integrated Coastal Bio-Optical Dynamics (ICoBOD) project, we conducted a field campaign in Mississippi Sound in the northern Gulf of Mexico during spring 2018 to examine the impact of the passage of atmospheric and tidal fronts on fine-scale physical and bio-optical property distributions in a shallow, dynamic, coastal environment. During a 25-day experiment, we deployed eight moorings over a roughly 7 × 7 km box encompassing a frontal zone, to collect a time series of physical and bio-optical measurements. We describe changes in diver visibility related to the passage of a short-duration, high-turbidity surface plume and nepheloid layer development/decay during a tidal cycle. Maximum nepheloid layer development was observed during low tide and lasted about 9–12 h. The strongest turbidity signal extended about 4–5 m above the bottom (approximately half of the water column), although anomalously elevated values were observed all the way to the surface. In addition, high-resolution (50 m) hydrodynamic model simulations provide insight into the frontal dynamics and aid interpretation of the observed patterns. Mooring observations confirmed model-predicted heat flux changes associated with the passage of an atmospheric cold front.

Removal of Formaldehyde and Volatile Organic Compounds from Particleboards by Air-Cleaning Materials

2010 ◽  
Vol 113-116 ◽  
pp. 1870-1873
Author(s):  
Xiao Dong Zhu ◽  
Jun Shen ◽  
Yu Liu
Keyword(s):  
Activated Carbon ◽  
Voc Emissions ◽  
Photo Catalyst ◽  
Air Cleaning ◽  
Test Conditions ◽  
Formaldehyde Removal ◽  
Volatile Organic ◽  
Removal Efficiencies ◽  
Short Time ◽  
The Impact

The removal efficiencies of 4 air-cleaning materials on formaldehyde and VOC emissions from particleboards were examined in this paper. The effect of activated carbon and photo catalyst on formaldehyde and VOC emissions removal was notable in short time. The effect of scavenger was obviously on formaldehyde removal for its synthetic mechanism. And the impact of bioenzyme on formaldehyde and VOC emissions from particleboards is dependent on the test conditions and it shows no impact on emissions in this experiment.

scholarly journals Temping fates in Spain: hours and employment in a dual labor market during the Great Recession and COVID-19

SERIEs ◽  
2021 ◽  
Author(s):  
Cristina Lafuente ◽  
Raül Santaeulàlia-Llopis ◽  
Ludo Visschers
Keyword(s):  
Labor Market ◽  
Great Recession ◽  
Dual Labor Market ◽  
Total Employment ◽  
Temporary Contracts ◽  
The Great Recession ◽  
Time Work ◽  
Short Time ◽  
Permanent Workers ◽  
The Impact

AbstractWe investigate the behavior of aggregate hours supplied by workers in permanent (open-ended) contracts and temporary contracts, distinguishing changes in employment (extensive margin) and hours per worker (intensive margin). We focus on the differences between the Great Recession and the start of the COVID-19 Recession. In the Great Recession, the loss in aggregate hours is largely accounted for by employment losses (hours per worker did not adjust) and initially mainly by workers in temporary contracts. In contrast, in the early stages of the COVID-19 Recession, approximately sixty percent of the drop in aggregate hours is accounted for by permanent workers that do not only adjust hours per worker (beyond average) but also face employment losses—accounting for one-third of the total employment losses in the economy. We argue that our comparison across recessions allows for a more general discussion on the impact of adjustment frictions in the dual labor market and the effects policy, in particular the short-time work policy (ERTE) in Spain.

scholarly journals Influence of plants used in agricultural diversification on the nematode Heterorhabditis amazonensis

2021 ◽  
Vol 42 (6supl2) ◽  
pp. 3553-3566
Author(s):  
Natalia Ramos Mertz ◽  
◽  
Fernanda Soares Sales ◽  
Elsa Judith Guevara Agudelo ◽  
Alcides Moino Junior ◽  
...  
Keyword(s):  
Entomopathogenic Nematodes ◽  
Control Treatment ◽  
Agricultural System ◽  
Tagetes Erecta ◽  
Initial Population ◽  
Agricultural Diversification ◽  
Main Crop ◽  
Short Time ◽  
The Impact ◽  
Crotalaria Spectabilis

In an agricultural system, to increase natural biological control, plants that attract natural enemies can be grown alongside the main crop. However, the effects of these plants on entomopathogenic nematodes (EPNs), important agents for controlling soil pests, and the action of their conservation are unknown. To assess the impact of these plants on EPNs, two experiments were carried out in a greenhouse. The first measured the effect of Crotalaria spectabilis, Crotalaria breviflora, and Tagetes erecta on the persistence and infectivity of Heterorhabditis amazonensis isolate RSC 5 for 27 days, compared to a control treatment without plants. The second trial evaluated the effect of C. breviflora and T. erecta on the displacement of the nematode. Additionally, the influence of predator Calosoma granulatum in this system was evaluated. The plants did not influence nematode behaviour in terms of persistence, infectivity, or displacement. However, C. spectabilis allowed the most significant persistence of nematodes in the substrate for a short time, and T. erecta caused the fastest suppression of the initial population of infectives juvenile. In the second experiment, neither the predator nor the plants affected the nematode’s ability to move in the soil within 5 days. These results show that prior knowledge in agricultural diversification can help to control pests by inundative application of EPNs.

scholarly journals 21st Century Technology Renascence A Driven Impacting Factor For Future Energy, Economy, Ecommerce, Education, or Any Other E-Technologies

2020 ◽  
Author(s):  
Bahman Zohuri
Keyword(s):  
21St Century ◽  
Energy Demand ◽  
Autonomous Robots ◽  
Medical Science ◽  
Modern Technology ◽  
Energy Economy ◽  
Self Driving Cars ◽  
Impact Of Technology ◽  
Short Time ◽  
The Impact

Abstract: The human race has always innovated, and in a relatively short time went from building fires and making stone-tipped arrows to creating smartphone apps and autonomous robots. Today, technological progress will undoubtedly continue to change the way we work, live, and survive in the coming decades. Since the beginning of the new millennium, the world has witnessed the emergence of social media, smartphones, self-driving cars, and autonomous flying vehicles. There have also been huge leaps in energy storage, artificial intelligence, and medical science. We are facing immense challenges in global warming and food security, among many other issues. While human innovation has contributed to many of the problems we are facing, it is also human innovation and ingenuity that can help humanity deal with these issues “New directions in science are launched by new tools much more often than by new concepts. The effect of a concept-driven revolution is to explain old things in new ways. The effect of a tool-driven revolution is to discover new things that have to be explained”. (F. Dyson, 1997 In this article, we review the impact of technology as evolving at beginning of 21st Century on future prospect of Energy demand either renewable or non-renewable form, Economy, to Ecommerce, Education and any other E-related of Modern Technology.

scholarly journals The Impact of Domestic and Foreign Environment on China’s EconomicDevelopment

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Mengya Cao
Keyword(s):  
Financial Crisis ◽  
Economic Crisis ◽  
World Economy ◽  
Industrial Structure ◽  
Negative Impact ◽  
Economic Losses ◽  
The World ◽  
World Economic ◽  
Short Time ◽  
The Impact

In recent years, the financial crisis has affected the economies of all countries in the world. At that time, it seriously restricted the development of the world economy. From a modern perspective, the difficult period of the world economic crisis caused by the financial crisis has passed, but the negative impact of the economic crisis can not be eliminated in a short time. Dispersed, the crisis has brought both opportunities and challenges to the country as well as heavy economic losses. Under the background of economic globalization, only by making a scientific and effective analysis of the world economic situation and keeping up with the trend of the world economy, can we effectively promote the domestic economic development and industrial structure, and enable our economy to develop healthily and substantially.

scholarly journals E-Government services in Moldova: Value and opportunities

2018 ◽  
Vol 325 ◽  
pp. 347-358
Author(s):  
Mihai Grecu ◽  
Ilie Costaş ◽  
Artus Reaboi
Keyword(s):  
High Performance ◽  
Electronic Government ◽  
Government Services ◽  
Telecommunications Infrastructure ◽  
Technology Changes ◽  
Multiple Levels ◽  
The Government ◽  
The One ◽  
Short Time ◽  
The Impact

Technological progress in ICT has created conditions for a new government paradigm - from a government that leads to a government providing services to society. Technology changes the nature of the connection between government and citizens: governance becomes more participatory and citizens' interests prevail. The impact of e-Government solutions is complex, on multiple levels, depending on the maturity of the models applied and the capacity of citizens and business to assimilate e-Government services. In a short time, electronic government services in Moldova have evolved from simple information services to integrated transactional services. On the one hand, this is due to high performance telecommunications infrastructure (broadband, 2G, 3G and 4G technology) and, on the other hand, to citizens' expectations that boosted recently and determined the government to accelerate the implementation of new e-services, increasingly complex and a better quality. The paper addresses the issue of e-Government services in terms of the value that it gives to the government and to citizens' lives and analyzes opportunities to develop e-Government services in the new technological and social realities.

scholarly journals Pokoleniowe różnice w artystycznym obrazowaniu doświadczenia totalitarnej przeszłości w czeskim teatrze najnowszym

2016 ◽  
Vol 4 ◽  
pp. 49-58
Author(s):  
Sylwia Czachór
Keyword(s):  
Collective Identity ◽  
Generational Differences ◽  
Growing Up ◽  
History And Memory ◽  
Black And White ◽  
The Past ◽  
Artistic Representations ◽  
The 1960S ◽  
Short Time ◽  
The Impact

Generational differences in artistic representations of the experience of totalitarian past in the new Czech theatre. The article presents an analysis of a number of Czech performances from the years 2007–2013 on the topic of the communist era and reflecting on the changes that have occurred over the past 25 years. Selected directors belong to three generations of artists: the ones already creating in the 1960s, the ones debuting just before or just after the Velvet Revolution and the ones beginning their career in 2000. The comparison of performances produced within a short time clearly shows the differences, both aesthetic and ideological, in the method of recognizing similar issues by the authors growing up in a completely different socio-political conditions. Works of the oldest generation, using conventional theatrical means, reveal the strongest judgmental tendencies, the need to show the ambiguous choices in black and white colors. The average generation contend with the legend of past years, asking difficult questions about the impact of the past on the shape of collective identity. The youngest generation, however, intentionally emphasize that their knowledge about communism is mediated, which encourages them to analyze the history and memory of their families in search of their own roots.Generační rozdíly v uměleckém zobrazování zkušenosti totalitární minulosti v nejnovějším českém divadle. Příspěvek obsahuje analýzu několika českých představení z let 2007–2013, jejichž tématem se stalo období komunismu a reflexe nad proměnami posledních 25 let. Vybraní režiséři patří ke třem generacím umělců:  jedni inscenovali dlouho před rokem 1989, druzí debutovali krátce po sametové revoluci, zatímco třetí zahájili kariéru v roce 2000. Soubor představení vzniklých v malém časovém rozpětí výrazně ukazuje jak estetické, tak světonázorové rozdíly ve způsobu uchopení podobné tematiky autory, kteří vyrůstali ve zcela odlišných společensko-politických podmínkách. Díla nejstarší generace pomocí konvenčních divadelních prostředků projevují nejsilnější tendence posuzovat a odsuzovat, nutnost ukázat nejednoznačné volby v černo-bílých barvách. Střední generace se poměřuje s legendami mi­nulých dob, pokládá obtížné otázky po vlivu minulosti na podobu kolektivní identity. Nejmladší tvůrci pak vědomě zdůrazňují, že jejich znalost komunismu je zprostředkovaná, což je vede k analyzování historie a rodinné paměti při hledání vlastních kořenů.  

scholarly journals Bestsellers, reading habits and ideology

Comunicar ◽  
2006 ◽  
Vol 14 (27) ◽  
pp. 47-54
Author(s):  
Miguel Angel Martínez-Cabeza ◽  
María del Carmen Espínola-Rosillo
Keyword(s):  
Da Vinci ◽  
Popular Fiction ◽  
Harry Potter ◽  
Poor Quality ◽  
Reading Habits ◽  
Production And Consumption ◽  
Cultura Popular ◽  
Short Time ◽  
The Impact ◽  
Literary Quality

Readers of bestsellers, books which sell over 100.000 copies in a short time, feel ashamed to acknowledge such wguilty pleasuresn in view of the general opinion against their poor literary quality. The equation between high number of readers and poor quality has not been solved but there is little doubt that the impact of bestsellers mirrors and afects the ways in which we envisage our present, past and future. Precisely this capacity of popular fiction to articulate contemporary issues calls for critica1 analysis. This paper tackles the issue from the penpective of popular fiction studies considering factors and issues involved in the success of bestselling fiction both in its production and consumption. Because of their international dimension, «The Da Vinci Code» and «Harry Potter» offer two unavoidable paradigms in adult and children fiction to be considered. A menudo los lectores de novelas, que alcanzan cifras de venta superiores a los cien mil ejemplares en poco tiempo, los llamados «bestsellers» o «fastsellers», parecen obligados a ocultarlo o justificarlo dada la opinión dominante acerca de su escasa calidad literaria. La ecuación a mayor número de lectores menor calidad está por demostrar, pero lo que no ofrece duda es que, precisamente por su impacto, estos textos influyen y reflejan el modo en que entendemos e imaginamos nuestro presente, pasado y futuro. Por esto, las obras de ficción popular que alcanzan tales niveles de difusión requieren análisis crítico. Este trabajo aborda dicho análisis desde la perspectiva de los estudios de cultura popular considerando los factores y condiciones de éxito de los bestsellers, analizándose dos éxitos recientes cuya dimensión internacional establece un paradigma en la industria editorial y de la cultura: «Harry Potter» y «El código da Vinci».

scholarly journals Experimental Research on the Impact of Interface Temperature on the Adhesion Properties of Clay under the Condition of Different Contacting Time

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Tao Qiu ◽  
Yonggang Zhang
Keyword(s):  
Adhesion Force ◽  
Interface Temperature ◽  
Heating Process ◽  
Adhesion Properties ◽  
Interfacial Temperature ◽  
Short Time ◽  
Hot Surface ◽  
Shield Machine ◽  
The Impact

Mud cakes are very likely to occur at the shield cutter when the shield machine passes through a clay stratum, which adhere to the cutter and reduce the excavation efficiency. Due to the thrust of the cutter, the mud cakes are compacted and cause friction at the soil-structure interface, which results in high temperature and aggravates the adhesion, and the effect tends to become stronger as the heating process lasts. In this paper, the effects of the interface temperature and the contacting time between the soil and the hot surface on the adhesion properties of the soil were studied by a self-made adhesion test device. According to the findings, at low interfacial temperature (≤40°C), both the adhesion force and the amount of adhered soil were insignificant in a short term, and the effects were found to be strengthened as the contacting time went on; at the high interfacial temperature (≥50°C), very significant soil adhesion occurred at the structure surface within a short time, and as the contacting time increased, the amount of the adhered soil decreased rapidly while the adhesion force kept increasing, and both tended to remain a constant and become independent with the temperature after a long-term contact. This study is of guiding significance for understanding the formation and development of the shield mud cakes during shield construction.

scholarly journals A Data Driven Change-point Epidemic Model for Assessing the Impact of Large Gathering and Subsequent Movement Control Order on COVID-19 Spread in Malaysia

2020 ◽  
Author(s):  
Sarat C. Dass ◽  
Wai M. Kwok ◽  
Gavin J. Gibson ◽  
Balvinder S. Gill ◽  
Bala M. Sundram ◽  
...  
Keyword(s):  
Change Point ◽  
Movement Control ◽  
Disease Spread ◽  
Time Period ◽  
Before And After ◽  
Quantitative Understanding ◽  
Control Order ◽  
Short Time ◽  
The Impact ◽  
Second Wave

AbstractThe second wave of COVID-19 in Malaysia is largely attributed to a mass gathering held in Sri Petaling between February 27, 2020 and March 1, 2020, which contributed to an exponential rise of COVID-19 cases in the country. Starting March 18, 2020, the Malaysian government introduced four consecutive phases of a Movement Control Order (MCO) to stem the spread of COVID-19. The MCO was implemented through various non-pharmaceutical interventions (NPIs). The reported number of cases reached its peak by the first week of April and then started to reduce, hence proving the effectiveness of the MCO. To gain a quantitative understanding of the effect of MCO on the dynamics of COVID-19, this paper develops a class of mathematical models to capture the disease spread before and after MCO implementation in Malaysia. A heterogeneous variant of the Susceptible-Exposed-Infected-Recovered (SEIR) model is developed with additional compartments for asymptomatic transmission. Further, a change-point is incorporated to model the before and after disease dynamics, and is inferred based on data. Related statistical analyses for inference are developed in a Bayesian framework and are able to provide quantitative assessments of (1) the impact of the Sri Petaling gathering, and (2) the extent of decreasing transmission during the MCO period. The analysis here also quantitatively demonstrates how quickly transmission rates fall under effective NPI implemention within a short time period.

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