Southwest University

About: Southwest University is a education organization based out in Chongqing, China. It is known for research contribution in the topics: Population & Bombyx mori. The organization has 29772 authors who have published 27755 publications receiving 409441 citations. The organization is also known as: Southwest University in Chongqing & SWU.

Dual Recognition Strategy for Specific and Sensitive Detection of Bacteria Using Aptamer-Coated Magnetic Beads and Antibiotic-Capped Gold Nanoclusters

Abstract: Food poisoning and infectious diseases caused by pathogenic bacteria such as Staphylococcus aureus (SA) are serious public health concerns. A method of specific, sensitive, and rapid detection of such bacteria is essential and important. This study presents a strategy that combines aptamer and antibiotic-based dual recognition units with magnetic enrichment and fluorescent detection to achieve specific and sensitive quantification of SA in authentic specimens and in the presence of much higher concentrations of other bacteria. Aptamer-coated magnetic beads (Apt-MB) were employed for specific capture of SA. Vancomycin-stabilized fluorescent gold nanoclusters (AuNCs@Van) were prepared by a simple one-step process and used for sensitive quantification of SA in the range of 32–108 cfu/mL with the detection limit of 16 cfu/mL via a fluorescence intensity measurement. And using this strategy, about 70 cfu/mL of SA in complex samples (containing 3 × 108 cfu/mL of other different contaminated bacteria) could be s...

Gender differences in behavioral inhibitory control: ERP evidence from a two-choice oddball task

Abstract: Theinhibitionofinappropriatebehaviorsisimportantforadaptivelivinginchangingenvironments.Thepresentstudyinvestigated gender-related behavioral inhibitory control by recording event-related potentials for standard and de-viant stimuli while subjects performed a standard/deviant distinction taskby accurately pressingdifferent keys within1000 ms. The results showed faster reaction times (RTs) for deviant stimuli in women than in men, although RTs forstandard stimuli were similar across genders. There were significant gender and stimulus interaction effects on meanamplitudes during each of the 170–230-ms, 250–330-ms, and 350–600-ms intervals, and women exhibited shorterlatenciesandlargeramplitudesthanmenatdeviant-relatedP2,N2,andP3components.Asanaccurate,fastresponsetotheraredeviantstimuliinvolvesbehavioralinhibitorycontrolontheprepotentresponsewhereastheresponsetothestandard stimuli does not, it is clear that there is a general gender difference in behavioral control for human adults.This may relate to differential inhibitory demands by each gender during evolution.Descriptors: ERP, Gender differences, Response conflict, Behavioral controlBehavioral control, which enables humans to withhold inappro-priate behaviors in some contexts, allows people appropriate re-sponses to meet complicated demands and to live adaptively inthe changing environments (Goldstein et al., 2007; Li, Huang,Constable, & Sinha, 2006a; Norman & Shallice, 1986). As animportant executive function, this ability is essential to the suc-cess of both men and women in modern (and, presumably, an-cestral) society and may have played a critical role in theevolution of human intelligence, particularly social intelligence(BjorklundSLi,Huang,Constable,SRosenblitt, Soler, Johnson, & Quadagno, 2001). Moreover, itwas indicated that behavioral inhibitory control of women wasless impaired by alcohol consumption relative to that of men(FillmoreW Fillmore W Kochanska, Murry, H Kochanska et al., 2000). Nonetheless,whether gender differences in behavioral control during earlyyears can predict the existence of the same difference in adults isstill unknown. It is still unclear whether there is a general differ-ence between men and women in behavioral control. Therefore,the present study investigates behavioral control and its associ-ationwithgender,whichmay provideaninsightintoourknowl-edge about behavioral inhibitory control and its relatedindividual differences.As is known, the go/no go task is frequently used to inves-tigate behavioral inhibitory control and its related neural corre-lates (Donkers and van Boxtel, 2004; Goldstein et al., 2007). Inthe go/no go task, subjects are typically asked to generate aresponseasfastaspossiblewhenthegostimulusispresentedand

A Review of Compressive Sensing in Information Security Field

Abstract: The applications of compressive sensing (CS) in the field of information security have captured a great deal of researchers’ attention in the past decade. To supply guidance for researchers from a comprehensive perspective, this paper, for the first time, reviews CS in information security field from two aspects: theoretical security and application security. Moreover, the CS applied in image cipher is one of the most widespread applications, as its characteristics of dimensional reduction and random projection can be utilized and integrated into image cryptosystems, which can achieve simultaneous compression and encryption of an image or multiple images. With respect to this application, the basic framework designs and the corresponding analyses are investigated. Specifically, the investigation proceeds from three aspects, namely, image ciphers based on chaos and CS, image ciphers based on optics and CS, and image ciphers based on chaos, optics, and CS. A total of six frameworks are put forward. Meanwhile, their analyses in terms of security, advantages, disadvantages, and so on are presented. At last, we attempt to indicate some other possible application research topics in future.

Evidence Combination From an Evolutionary Game Theory Perspective

Abstract: Dempster–Shafer evidence theory is a primary methodology for multisource information fusion because it is good at dealing with uncertain information. This theory provides a Dempster’s rule of combination to synthesize multiple evidences from various information sources. However, in some cases, counter-intuitive results may be obtained based on that combination rule. Numerous new or improved methods have been proposed to suppress these counter-intuitive results based on perspectives, such as minimizing the information loss or deviation. Inspired by evolutionary game theory, this paper considers a biological and evolutionary perspective to study the combination of evidences. An evolutionary combination rule (ECR) is proposed to help find the most biologically supported proposition in a multievidence system. Within the proposed ECR, we develop a Jaccard matrix game to formalize the interaction between propositions in evidences, and utilize the replicator dynamics to mimick the evolution of propositions. Experimental results show that the proposed ECR can effectively suppress the counter-intuitive behaviors appeared in typical paradoxes of evidence theory, compared with many existing methods. Properties of the ECR, such as solution’s stability and convergence, have been mathematically proved as well.