手机QQ设备锁让QQ更安全

正怎么预防QQ号码被盗,怎么样能让QQ号码更加安全,开启QQ设备锁之后,只能在通过你认证的手机、平板电脑或者电脑上登录,在新的设备上登录时就需要手机短信验证或者用手机扫描二维码。手机QQ需要升级到手机QQ4.62或以上版本才有此功能。手机QQ设备锁怎么使用呢?打开手机QQ,进入设置,找到设备锁(如图1),选择开启设备锁(注意:你的QQ号需要绑定了安全手机才能使     

走路发QQ不再发愁

在手Q中经常藏着一些并不为多人所知的小功能，而有时候这些功能又非常的有用，并且这些功能中往往透出着设计者的巧思，比如这项实时聊天背景模式。有了它，大家就可以放心大胆地边走路边聊天了。     

G-proteins are involved in 5-HT receptor-mediated modulation of N- and P/Q- but not T-type Ca2+ channels

5-HT produces voltage-independent inhibition of the N-, P/Q-, and T-type Ca2+ currents in sensory neurons of Xenopus larvae by acting on 5-HT1A and 5-HT1D receptors. We have explored the underlying mechanisms further and found that the inhibition of high voltage-activated (HVA) currents by 5-HT is mediated by a pertussis toxin-sensitive G-protein that activates a diffusible second messenger. Although modulation of T-type currents is membrane-delimited, it was not affected by GDP-beta-S (2 mM), GTP-gamma-S (200 microM), 5'-guanylyl-imidodiphosphate tetralithium (200 microM), aluminum fluoride (AlF4-, 100 microM), or pertussis toxin, suggesting that a GTP-insensitive pathway was involved. To investigate the modulation of the T currents further, we synthesized peptides that were derived from conserved cytoplasmic regions of the rat 5-HT1A and 5-HT1D receptors. Although two peptides derived from the third cytoplasmic loop inhibited the HVA currents by activating G-proteins and occluded the modulation of HVA currents by 5-HT, two peptides from the second cytoplasmic loop and the C tail had no effect. None of the four receptor-derived peptides had any effect on the T-type currents. We conclude that 5-HT modulates T-type channels by a membrane-delimited pathway that does not involve G-proteins and is mediated by a functional domain of the receptor that is distinct from that which couples to G-proteins.     

Studies on receptor binding site of insulin: the hydrophobic B12Val can be substituted by hydrophilic thr

L. Benjamin's (1984) structural analysis of social behavior (SASB) system was used as the organizing framework within which to characterize the phenomenology of self and other relationship experience among subtypes of alcoholic men. Within the context of a community-based study of psychopathology, groups of antisocial alcoholic (AAL), nonantisocial alcoholic (NAAL), and nonalcoholic (control) men completed ratings of their introject (self-concept) and spousal experience. Group differences in demography and psychopathology provided strong support for subtype variations among alcoholic men that could not be attributed to global differences in adaptive functioning. SASB data showed consistency in circumplex ordering across the groups in ratings of self-experience and in ratings of the spousal relationship. AAL men were the most self-neglecting, blaming, and least trusting, and control men were the most relationally connected, with NAAL men falling in between. Despite the importance of the subtyping distinction, in some areas, alcoholism, regardless of subtype, was the core differentiating factor.     

如何禁止QQ账号在手机、平板电脑上登录

正QQ登录保护功能升级,让我们可以轻松保护账号不被他人在手机或者平板电脑上登录。那么如何保护账号不被他人在手机或者平板电脑上登录呢?你只要启用新功能,就可以禁止他人在手机和平板电脑上登录你的QQ啦(如图1)。如果在新功能开启前,你的账号已经在手机或平板电脑上登录,那么在新功能成功开启的同时,该账号会被踢下线。例如手机QQ、手机QQ空间等被踢下线后会提示你登录失败(如图2)。     

Preparation,thermal properties and permeabilities of aluminum-coated fabrics destined for thermal radiation protective clothing

In this study, radiant reflective, flame retardant and water vapor permeable coatings were fabricated on aramid fabric (AF) for thermal radiation protective clothing by using a simple cost-effective coating method, which included an aluminum paste, APP-PER-MEL and a silk fibroin powder in the TPU solution system. The permeability, flame retardancy, thermal stability, radiative spectral reflectance, as well as RPP of these prepared fabrics were characterized and compared with the pure AF and aluminum-foiled AF (AF-AF). Results show that the newly developed aluminized AF had rather high permeability, and the permeable capability would be further enhanced with the additive of silk fibroin powder. The flame retardancy (FR) of the coated fabric sample was also achieved by introducing an intumescent FR system. In contrast to the pure AF, the aluminum-coated AF provided higher levels of radiation protection in RPP testing. This was further confirmed by the fact that aluminum-coated AF exhibited comparative high average reflectivities (more than 0.7) in the radiant spectral range of 1547 nm to 2500 nm. Thus, the aluminum-coated AF prepared by functional coating method exhibit great and competitive practicability in thermal protective clothing due to their excellent moisture comfort and radiant thermal protection.     

Adverse life events and resilience

OBJECTIVE: Adverse life events are well-documented risk factors of psychopathology and psychological dysfunction in children and adolescents. Youth with good adjustment despite high levels of adverse life events are considered resilient. This study identifies factors that characterize resilience. METHOD: Household probability samples of youth aged 9 through 17 years at four sites were used. Main and interaction effects of 11 factors were examined to assess their impact on youth adjustment. RESULTS: Children at risk because of higher levels of adverse life events exhibited a greater degree of resilience when they had a higher IQ, better family functioning, closer parental monitoring, more adults in the household, and higher educational aspiration. The interaction between maternal psychopathology and adversity was significant, and the interaction between IQ and adversity approached significance. CONCLUSION: Resilient youth received more guidance and supervision by their parents and lived in higher-functioning families. Other adults in the family probably complemented the parents in providing guidance and support to the youth and in enhancing youth adjustment. Higher educational aspirations might have provided high-risk youth with a sense of direction and hope. Although IQ had no impact in youth at low risk, youth at high risk who had a higher IQ might have coped better.