In the past two decades, respiratory sinus arrhythmia (RSA)-an index of parasympathetic nervous system (PNS)-mediated cardiac control-has emerged as a reliable peripheral biomarker of emotion regulation (ER). Reduced RSA and excessive RSA reactivity (i.e., withdrawal) to emotional challenge are observed consistently among individuals with poor ER capabilities, including those with various forms...

The RSA cryptosystem, invented in 1977 is the most popular public cryptosystem for electronic commerce. Its three inventors Rivest, Shamir and Adleman received the Year 2002 Turing Award, the equivalent Nobel Prize in Computer Science. RSA offers both encryption and digital signatures and is deployed in many commercial systems. The security of RSA is based on the assumption that factoring large...

Root system architecture (RSA) impacts plant fitness and crop yield by facilitating efficient nutrient and water uptake from the soil. A better understanding of the effects of soil on RSA could improve crop productivity by matching roots to their soil environment. We used x-ray computed tomography to perform a detailed three-dimensional quantification of changes in rice (Oryza sativa) RSA in re...

The present longitudinal study examined relations between respiratory sinus arrhythmia (RSA) development and social responsiveness characteristics associated with autism spectrum disorders. Group-based developmental trajectory modeling was used to characterize RSA development patterns in 106 typically developing children across 5, 10, 24, 36, and 48 months of age. A two-group model fit of RSA d...

RSA, ESIGN, cryptography, digital signature, encryption, decryption, factoring RSA [1] generates digital signatures and cipher text, S, by performing exponentiation on a message, M, to the e-th power of the form M mod(n), where n is based on large prime numbers. RSA has been proven to be fundamentally secure, given the complexity of the e-th root mod(n) problem that RSA presents. Unfortunately,...

On August 22, 1999, we completed the factorization of the 512{bit 155{digit number RSA{155 with the help of the Number Field Sieve factoring method (NFS). This is a new record for factoring general numbers. Moreover, 512{bit RSA keys are frequently used for the protection of electronic commerce|at least outside the USA|so this factorization represents a breakthrough in research on RSA{based sys...

Roentgen stereophotogrammetry is the most accurate Roentgen technique for three-dimensional assessment of micromotion of orthopaedic implants. The reported accuracy of Roentgen Stereophotogrammetric Analysis (RSA) ranges between 0.05 and 0.5 mm for translations and between 0.15j and 1.15j for rotations. Because of the high accuracy of RSA, small patient groups are in general sufficient to study...

The purpose of the present study was to compare the performance in repeated sprint ability (RSA) and repeated changes-of-direction (RCOD) among elite soccer players with different age categories. Forty-nine elite soccer players from the same club and from different age categories (Pro2: n = 8, U19: n = 18, U17: n = 13, and U15: n = 10) participated in this study. Each player was tested in both ...

Respiratory sinus arrhythmia (RSA) is the modulation of heart rate along with respiration. Individual differences in RSA reflect parasympathetic cardiac control. Low RSA is linked to emotional dysregulation, perhaps from an inability to modulate the parasympathetic nervous system to emotion. For the current study, pictures of varying emotional contents were presented to participants with low an...