Notes

Computerized Diagnosis involving Eating and also Ingesting.
Using method of triads to calculate validity coefficients (VC), the median VC between SFFQ and true intake was 0.65 and 0.69 using 7DDRs or ASA24s as the third method. These data indicate that this SFFQ provided reasonably valid estimates for a wide range of nutrients when evaluated by multiple comparison methods.Aim Face masks are an important addition to our arsenal in the fight against COVID-19. The aim of this study is to present a novel method of measuring mask performance which can simultaneously assess both fabric penetration and leakage due to poor fit. Materials & methods A synthetic aerosol is introduced into the lung of a medical dummy. A conical laser sheet surrounds the face of the dummy where it illuminates the aerosol emitted during a simulated breath. The system is demonstrated with five mask types. Conclusions The curved laser sheet highlights both penetration through the mask fabric and leakage around the edges of the mask. A large variation in both material penetration and leakage was observed.The study is aimed to reveal the fluctuation of the inorganic elements in the rhizosphere soil of Ligusticum chuanxiong during their whole growth period, and explore the relationship between that fluctuation and the formation of radial striations character in the rhizomes. During the cultivation period of L. chuanxiong, the rhizosphere soil samples were taken regularly, and the content of 26 inorganic elements were determined by X-ray fluorescence spectrometry(XRF). Then the difference between the radial striations and un-radial striations rhizomes were analyzed for their fluctuation of the inorganic elements. The results showed that there were different "key period" and "key elements" in the rhizosphere elements content of L. chuanxiong rhizome with radial and un-radial striations, and different element coordination and antagonistic relationship. The key fluctuation period of rhizosphere elements in un-radial striations group were in 0-60 and 60-150 days, of which 22 elements such as Na, Mg, Al were the key elements in 0-60 days, and 5 elements such as Sr, Hf, Pb, Co, Ce were the key elements in 60-150 days. The key fluctuation period of rhizosphere elements in radial striations group were in 0-60 and 210-270 days, of which four elements such as Na, Co, Ce, As are the key change elements in 0-60 days, and 18 elements such as Mg, Al, Si are the key change elements in 210-270 days. At the same time, the study showed that the fluctuation of inorganic elements in rhizosphere soil coincided with the growth and development process of L. chuanxiong and the key period of the formation of "radial striations rhizome". The key stage which the rapid growth of lateral buds of rhizome affected the formation of radial striations is 60-150 days after planting, while the increase of Sr and Co elements is likely to be an important reason for the expansion of lateral buds of rhizome and the failure to form typical "radial striations rhizome" in un-radial striations group.
Sitting or standing for hours decreases the blood flow in the legs and results in increased pressure on the veins, leading to the development of chronic venous disease. This study aimed to investigate the effects of insoles with a toe-grip bar on occupational leg swelling and lower limb muscle activity.

This randomized cross-over study enrolled 12 healthy men who work in a sitting or standing position. DNA inhibitor They were randomly divided into groups A (wore shoes with insoles with a toe-grip bar for 8hours each) and B (wore shoes with regular insoles for 8hours each). After 1week, groups A and B wore shoes with regular insoles and shoes with insoles with a toe-grip bar, respectively, for 8hours each. Lower leg volume was measured before and after each intervention, and lower limb muscle activity was measured at the start of each intervention.

Occupational leg swelling was significantly smaller in men wearing insoles with a toe-grip bar (P<.05). Moreover, the integrated electromyogram value of the tibialis anterior muscle and medial and lateral gastrocnemius muscles during the stance phase of walking, and tibialis anterior muscle during the swing phase of walking was significantly greater in men wearing insoles with a toe-grip bar (all P<.05).

Insoles with a toe-grip bar contribute to increased lower limb muscle activity, attenuating occupational leg swelling.
Insoles with a toe-grip bar contribute to increased lower limb muscle activity, attenuating occupational leg swelling.
Magnetization transfer ratio (MTR) histograms are used widely for the assessment of diffuse pathological changes in the brain. For broad clinical application, MTR scans should not only be fast, but confounding factors should also be minimized for high reproducibility. To this end, a 1-minute whole-brain spiral MTR method with intrinsic B
-field correction is introduced.

A spiral multislice spoiled gradient-echo sequence with adaptable magnetization-transfer saturation pulses (angle β) is proposed. After a low-resolution single-shot spiral readout and a dummy preparation period, high-resolution images are acquired using an interleaved spiral readout. For whole-brain MTR imaging, 50 interleaved slices with three different magnetization-transfer contrasts (β = 0°, 350°, and 550°) together with an intrinsic B
-field map are recorded in 58.5 seconds on a clinical 3T system. From the three contrasts, two sets of MTR images are derived and used for subsequent B
correction, assuming a linear dependency on β. For validation, a binary spin bath model is used.

For the proposed B
-correction scheme, numerical simulations indicate for brain tissue a decrease of about a factor of 10 for the B
-related bias on MTR. As a result, following B
correction, MTR differences in gray and white matter become markedly accentuated, and the reproducibility of MTR histograms from scan-rescan experiments is improved. Furthermore, B
-corrected MTR histograms show a lower variability for age-matched normal-appearing brain tissue.

From its speed and offering intrinsic B
correction, the proposed method shows excellent prospects for clinical studies that explore magnetization-transfer effects based on MTR histogram analysis.
From its speed and offering intrinsic B1 correction, the proposed method shows excellent prospects for clinical studies that explore magnetization-transfer effects based on MTR histogram analysis.
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