scholarly journals Research on Secure Communication Based on QQ Chat Platform

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Yi Cao
Keyword(s):  
Network Security ◽  
Secure Communication ◽  
Instant Messaging ◽  
Security Vulnerabilities ◽  
Contact Information ◽  
Diffi Cult ◽  
Short Time ◽  
The Impact ◽  
User Security

QQ is China's most widely used instant messaging tool, its security for user security and network security has animportant impact. Once a QQ account is hacked, the harm and the impact is terrible, the user loses a lot of friend’sinformation and contact information in a short time and is diffi cult to completely recover. This article will analyzethe security of QQ’s landing agreement, analyze its security, and point out the security vulnerabilities which exist,and explain the possible attacks that QQ may suff er, and make suggestions for improvement and ways to enhance thesecurity of QQ communication. In addition, this article also conducts a corresponding study of QQ hacking, and putsforward precautionary approaches.

Security Threat Analyses and Attack Models for Approximate Computing Systems

2021 ◽  
Vol 26 (4) ◽  
pp. 1-31
Author(s):  
Pruthvy Yellu ◽  
Landon Buell ◽  
Miguel Mark ◽  
Michel A. Kinsy ◽  
Dongpeng Xu ◽  
...  
Keyword(s):  
Error Resilience ◽  
Security Threats ◽  
Approximate Computing ◽  
Security Threat ◽  
Security Vulnerabilities ◽  
Computing Systems ◽  
Quantitative Analyses ◽  
Resilience Mechanisms ◽  
The Impact ◽  
Attack Models

Approximate computing (AC) represents a paradigm shift from conventional precise processing to inexact computation but still satisfying the system requirement on accuracy. The rapid progress on the development of diverse AC techniques allows us to apply approximate computing to many computation-intensive applications. However, the utilization of AC techniques could bring in new unique security threats to computing systems. This work does a survey on existing circuit-, architecture-, and compiler-level approximate mechanisms/algorithms, with special emphasis on potential security vulnerabilities. Qualitative and quantitative analyses are performed to assess the impact of the new security threats on AC systems. Moreover, this work proposes four unique visionary attack models, which systematically cover the attacks that build covert channels, compensate approximation errors, terminate normal error resilience mechanisms, and propagate additional errors. To thwart those attacks, this work further offers the guideline of countermeasure designs. Several case studies are provided to illustrate the implementation of the suggested countermeasures.

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 Pregnancy-Related Information Seeking and Sharing in the Social Media Era Among Expectant Mothers: Qualitative Study (Preprint)

2019 ◽  
Author(s):  
Chengyan Zhu ◽  
Runxi Zeng ◽  
Wei Zhang ◽  
Richard Evans ◽  
Rongrong He
Keyword(s):  
Social Media ◽  
Pregnant Women ◽  
Information Seeking ◽  
Chinese Culture ◽  
Instant Messaging ◽  
Media Usage ◽  
Related Information ◽  
Expectant Mothers ◽  
Media Channels ◽  
The Impact

BACKGROUND Social media has become the most popular communication tool used by Chinese citizens, including expectant mothers. An increasing number of women have adopted various forms of social media channels, such as interactive websites, instant messaging, and mobile apps, to solve problems and obtain answers to queries during pregnancy. Although the use of the internet by pregnant women has been studied extensively worldwide, limited research exists that explores the changing social media usage habits in China, where the 1 child policy ended in 2015. OBJECTIVE This study aimed to (1) present the status quo of pregnancy-related information seeking and sharing via social media among Chinese expectant mothers, (2) reveal the impact of social media usage, and (3) shed light on pregnancy-related health services delivered via social media channels. METHODS A qualitative approach was employed to examine social media usage and its consequences on pregnant women. A total of 20 women who had conceived and were at various stages of pregnancy were interviewed from July 20 to August 10, 2017. Thematic analysis was conducted on the collected data to identify patterns in usage. RESULTS Overall, 80% (16/20) of participants were aged in their 20s (mean 28.5 years [SD 4.3]). All had used social media for pregnancy-related purposes. For the seeking behavior, 18 codes were merged into 4 themes, namely, gravida, fetus, delivery, and the postpartum period; whereas for sharing behaviors, 10 codes were merged into 4 themes, namely, gravida, fetus, delivery, and caretaker. Lurking, small group sharing, bad news avoidance, and cross-checking were identified as the preferred patterns for using social media. Overall, 95% (19/20) of participants reported a positive mental impact from using social media during their pregnancy. CONCLUSIONS It is indisputable that social media has played an increasingly important role in supporting expectant mothers in China. The specific seeking and sharing patterns identified in this study indicate that the general quality of pregnancy-related information on social media, as well as Chinese culture toward pregnancy, is improving. The new themes that merge in pregnancy-related social media use represent a shift toward safe pregnancy and the promotion of a more enjoyable pregnancy. Future prenatal care should provide further information on services related to being comfortable during pregnancy and reducing the inequality of social media–based services caused by the digital divide.

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».

Sign in / Sign up

Export Citation Format

Share Document