Fidget spinners have been marketed as repetitive motion devices that improve attention and motor performance, and as such, they have become quite appealing to individuals with Attention Deficit Hyperactive Disorder (A...Fidget spinners have been marketed as repetitive motion devices that improve attention and motor performance, and as such, they have become quite appealing to individuals with Attention Deficit Hyperactive Disorder (ADHD). To date, no studies have explored changes in brain activity that may occur due to fidgeting in ADHD. Our aim was to use functional Near-Infrared Spectroscopy (fNIRS) to examine the prefrontal cortex (PFC) during the performance of a standardized fine motor skills test after using a fidget spinner. Eight right-handed adults with ADHD and eight age and gender matched adults without ADHD (4F/4M, 4 control/4 fidget) performed the Purdue Pegboard Test (PPT) while their brain oxygenation was monitored using fNIRS. Relative neural efficiency (RNE) and involvement (RNI) were calculated and analyzed for all subtasks of PPT including the less cognitively demanding fine motor subtasks and more complex assembly tasks. The fidget spinner improved both task performance and RNE in the ADHD group but not the non-ADHD group for the less cognitively demanding subtasks. Our results indicate Fidget spinners may improve both relative neural efficiency and fine motor performance in adults with ADHD for less cognitively demanding tasks.展开更多
A culture system was developed and successfully employed for the serum-free cultivation of Tn-5B1-4 (Tn5 ) insect cells. With our adaptation procedure, it was possible to obtain cells fully adapted to serum-free media...A culture system was developed and successfully employed for the serum-free cultivation of Tn-5B1-4 (Tn5 ) insect cells. With our adaptation procedure, it was possible to obtain cells fully adapted to serum-free media in stationary T-flasks and then enable these adapted cells to grow well in spinner flasks immediately. The spinner "ask with special stirring design proved tO provide favorable culture environment that made it desirable for use in the serum-free cultivation of Tn5 cells even at low seeding density.展开更多
Introducing the key technique of spinning fine tex yarnson the friction spinner, deals mainly with the technologi-cal parameters of the carding device, conducting tubeand spinning drum for the friction spinning. The e...Introducing the key technique of spinning fine tex yarnson the friction spinner, deals mainly with the technologi-cal parameters of the carding device, conducting tubeand spinning drum for the friction spinning. The experi-mental results show that, the combing effect of pin drumis better than that of garnett; the combing length is a im-portant factor. The form and dimension of the conduct-ing tube influence the rate of fiber straightness and thedegree of fiber orientation. The little angle between theconducting tube and drum axis is good for fiber parallel-ism and straightness. The frictional ratio and the rate ofair flow influence the efficiency of twist.展开更多
Source from China Textile releases that a delegation from the Spinners Committee of International Textile Manufactureres Federation(ITMF),as co-headed by Dr.Christian Schindler, general director of ITMF,and Mr.Andrew ...Source from China Textile releases that a delegation from the Spinners Committee of International Textile Manufactureres Federation(ITMF),as co-headed by Dr.Christian Schindler, general director of ITMF,and Mr.Andrew G.Macdonald, chairman of the Spinners Committee,will start a cotton study tour to China from Oct.14-20 this autumn.展开更多
文摘Fidget spinners have been marketed as repetitive motion devices that improve attention and motor performance, and as such, they have become quite appealing to individuals with Attention Deficit Hyperactive Disorder (ADHD). To date, no studies have explored changes in brain activity that may occur due to fidgeting in ADHD. Our aim was to use functional Near-Infrared Spectroscopy (fNIRS) to examine the prefrontal cortex (PFC) during the performance of a standardized fine motor skills test after using a fidget spinner. Eight right-handed adults with ADHD and eight age and gender matched adults without ADHD (4F/4M, 4 control/4 fidget) performed the Purdue Pegboard Test (PPT) while their brain oxygenation was monitored using fNIRS. Relative neural efficiency (RNE) and involvement (RNI) were calculated and analyzed for all subtasks of PPT including the less cognitively demanding fine motor subtasks and more complex assembly tasks. The fidget spinner improved both task performance and RNE in the ADHD group but not the non-ADHD group for the less cognitively demanding subtasks. Our results indicate Fidget spinners may improve both relative neural efficiency and fine motor performance in adults with ADHD for less cognitively demanding tasks.
文摘A culture system was developed and successfully employed for the serum-free cultivation of Tn-5B1-4 (Tn5 ) insect cells. With our adaptation procedure, it was possible to obtain cells fully adapted to serum-free media in stationary T-flasks and then enable these adapted cells to grow well in spinner flasks immediately. The spinner "ask with special stirring design proved tO provide favorable culture environment that made it desirable for use in the serum-free cultivation of Tn5 cells even at low seeding density.
文摘Introducing the key technique of spinning fine tex yarnson the friction spinner, deals mainly with the technologi-cal parameters of the carding device, conducting tubeand spinning drum for the friction spinning. The experi-mental results show that, the combing effect of pin drumis better than that of garnett; the combing length is a im-portant factor. The form and dimension of the conduct-ing tube influence the rate of fiber straightness and thedegree of fiber orientation. The little angle between theconducting tube and drum axis is good for fiber parallel-ism and straightness. The frictional ratio and the rate ofair flow influence the efficiency of twist.
文摘Source from China Textile releases that a delegation from the Spinners Committee of International Textile Manufactureres Federation(ITMF),as co-headed by Dr.Christian Schindler, general director of ITMF,and Mr.Andrew G.Macdonald, chairman of the Spinners Committee,will start a cotton study tour to China from Oct.14-20 this autumn.
