common variable immunodeficiency (cvid) is one of the primary immunodeficiencies, which usually presents with recurrent bacterial infections, particularly in respiratory and gastrointestinal systems and hypogammaglobulinemia. we present here a case of cvid who was suffering from chronic watery diarrhea since 3 months before admission. past medical history was uneventful about recurrent infectio...

Background The SAturation-recovery single-SHot Acquisition (SASHA) T1 mapping sequence has excellent accuracy independent of T1, T2, heart rate, and flip angle [1], which are known dependencies of the more commonly used MOdified Look-Locker Inversion-recovery (MOLLI) sequence. However, SASHA has a greater T1 variability (poorer precision) compared to MOLLI. A two-parameter fit, with assumed ide...

Session to session key variation is the only approach for achieving perfect security as per Shannon [1-2]. This paper deals with time variant key technique Automatic Variable Key (AVK) introduced by Bhunia[3-5] and we tried to analyze the performance of different types of new AVK techniques. Refer ences C E Shannon, "Mathematical theory of communication", The Bell System Tech J, Vol. ...

This study examines the relationship between firm innovation and CSR. Stakeholders’ concern over transaction-specific investments exacerbates when firms engage heavily in innovation activities. To secure stakeholders’ support, firms adopt CSR effectively as an ex ante signal of sustainability and goodwill. As CSR is endogenous to a firm’s innovation activities, we rely on an instrumental variab...

In this paper, we propose a method for efficient gonio-imaging of optically variable devices (OVDs), which are applied as a counterfeit deterrence for valuable documents. A compound-eye image-capturing system composed by a microlens array, a signal separator, and an image sensor was used to capture directionally distributed light from OVDs after being collimated by a convex lens. Multiple image...

Purpose of review When leveraging observational data to estimate treatment effects, it is useful to explicitly specify the "target trial" the investigators aspire to emulate. One concern is whether a proposed analysis plan can address the realities of the differences between the available non-randomized observational study and the target trial. When large or unknown sources of unmeasured confou...

Given the increasing complexity of the tasks and skills needed in modern society, developing effective training strategies is of tremendous practical importance. Furthermore, training that improves performance of both trained and untrained tasks would be highly efficient. In the present study, we examined how directed training contributes to skill acquisition, and more importantly, to engenderi...

The effects of reinforcement on delayed matching to sample (DMTS) have been studied in two within-subjects procedures. In one, reinforcer magnitudes or probabilities vary from trial to trial and are signaled within trials (designated signaled DMTS trials). In the other, reinforcer probabilities are consistent for a series of trials produced by responding on variable-interval (VI) schedules with...

OBJECTIVE To estimate the relationship between variations in medical spending and health outcomes of the elderly. DATA SOURCES 1992-2002 Medicare Current Beneficiary Surveys. STUDY DESIGN We used instrumental variable (IV) estimation to identify the relationships between alternative measures of elderly Medicare beneficiaries' medical spending over a 3-year observation period and health stat...