Energy spectra of metastable oxygen atoms produced by electron impact dissociation of O2

Kinetic energies of metastable oxygen atoms formed by electron impact dissociation of oxygen and measured in time of flight experimen

Production of CO(a 3 Pi) and other metastable fragments by electron impact dissociation of CO2

Dissociative excitation of CO(a 3 Pi) and other metastable fragments such as O(5S) produced by electron impact on CO

Excitation of the metastable E(3 Sigma g plus) state of N2 by electron impact

The contribution of the N2(E(3 Sigma g plus)) state to the total metastable excitation function of N2 assessed on the basis of time-of-flight studies of metastable nitrogen molecules. The cross section for electron impact excitation state was determined in the domain of the resonance form threshold (11.87 eV) to an energy of about 13 eV. The maximum value of the cross section was found to be (7.0 + or - 4.0) x 10 to the -18th power sq cm at an energy of 12.2 eV. The measurement was made absolute by using the previously determined yield of the metastable detector, the lifetime of the E state, and by eliminating the energy spread in the electron beam from the raw data. The half-width (FWHM) of the resonance-like excitation function near threshold was found to be about 0.4 eV. No substantial evidence was obtained from the present data for the presence of the nonresonant part of the excitation function for the state studied

A mass spectrometer observation of NO in an auroral arc

NO measurement in auroral arc by mass spectrometer onboard Aerobee rocke

Правила оформлення статей

Background For parents at high risk for cardiovascular events, presence of cardiovascular disease or risk factors in their offspring may be an indicator of their genetic load or exposure to (unknown) risk factors and might be related to the development of new or recurrent vascular events. Methods In 4,267 patients with vascular disease, hypertension, diabetes, or hypercholesterolemia enrolled in the SMART cohort, the presence of cardiovascular risk factors (hypertension, diabetes, hypercholesterolemia, smoking, or overweight) and cardiovascular disease (coronary artery disease, cerebrovascular disease, peripheral artery disease, or abdominal aortic aneurysm) was assessed in their 10,564 children. The relation between presence of cardiovascular disease or cardiovascular risk factors in their offspring and new or recurrent vascular events was determined by Cox proportional hazard analyses. Results Of the patients, 506 (12%) had offspring with cardiovascular disease, hypertension, hypercholesterolemia, or diabetes. Smoking in offspring was present in 1,972 patients (46%), and overweight in 845 patients (20%). During a median follow-up of 7.0 years (interquartile range 3.7-10.4), the composite outcome of myocardial infarction (MI), stroke, or vascular mortality occurred in 251 patients. Patients with offspring with cardiovascular disease, hypertension, hypercholesterolemia, or diabetes had an increased risk of vascular mortality (hazard ratio [HR] 2.9, 95% CI 1.2-7.1), MI (HR 1.6, 95% CI 1.1-2.5), and the composite outcome (HR 1.5, 95% CI 1.1-2.2). Diabetes in offspring was related to an increased risk of the composite outcome (HR 2.7, 95% CI 1.5-5.0), MI (HR 3.3, 95% CI 1.7-6.6), and vascular mortality (HR 3.4, 95% CI 0.8-14.8). Smoking and overweight in offspring were not related to increased vascular risk in parents. Conclusions Presence of cardiovascular disease, hypertension, hypercholesterolemia, and diabetes in offspring, with diabetes mellitus being the most contributing cardiovascular risk factor, is related to an increased risk of developing new or subsequent vascular events in patients already at high vascular risk

Достаточные условия стойкости рандомизированных блочных cистем шифрования относительно метода криптоанализа на основе коммутативных диаграмм

Получены достаточные условия отсутствия определенных нетривиальных конгруэнций многоосновных алгебр, описывающих рандомизированные блочные системы шифрования, соответствующие SPN-подобным шифрам или шифрам Фейстеля. Указанные условия исключают возможность применения к таким системам шифрования метода криптоанализа на основе коммутативных диаграмм.Отримано достатні умови відсутності певних нетривіальних конгруенцій багатоосновних універсальних алгебр, що описують рандомізовані блокові системи шифрування, які відповідають SPN-подібним шифрам або шифрам Фейстеля. Зазначені умови виключають можливість застосування до таких систем шифрування методу криптоаналізу на основі комутативних діаграм.Sufficient conditions for the non-existence of certain nontrivial congruences of many-sorted universal algebras, that describe randomized block cipher systems based on the SPN-like ciphers or on Feistel ciphers, are obtained. These conditions guarantee that such cipher systems are secure against commutative diagram attacks