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
Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorag...Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorage odd elasticity,engendering phenomena unattainable in traditional passive or active systems.Here,we study the effects of odd viscosity and elasticity on phase behaviors of active spinner systems.We find the spinner fluid under a simple shear experiences an anisotropic gas-liquid phase separation driven by the odd-viscosity stress.This phase separation exhibits equilibrium-like behavior,with both binodal-like and spinodal curves and critical point.However,the formed dense liquid phase is unstable,since the odd elasticity instantly takes over the odd viscosity to condense the liquid into a solid-like phase.The unusual phase behavior essentially arises from the competition between thermal fluctuations and the odd response-induced effective attraction.Our results demonstrate that the cooperation of odd viscosity and elasticity can lead to exotic phase behavior,revealing their fundamental roles in phase transition.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
Raman spectroscopy offers non-destructive and highly sensitive molecular insights into bacterial species,making it a valuable tool for detection,identification,and antibiotic susceptibility testing.However,achieving c...Raman spectroscopy offers non-destructive and highly sensitive molecular insights into bacterial species,making it a valuable tool for detection,identification,and antibiotic susceptibility testing.However,achieving clinically relevant accuracy,quantitative data,and reproducibility remains challenging due to the dominance of bulk signals and the uncontrollable heterogeneity of analytes.In this study,we introduce an innovative diagnostic tool:a plasmonic fidget spinner(P-FS)incorporating a nitrocellulose membrane integrated with a metallic feature,referred to as a nanoplasmonic-enhanced matrix,designed for simultaneous bacterial filtration and detection.We developed a method to fabricate a plasmonic array patterned nitrocellulose membrane using photolithography,which is then integrated with a customized fidget spinner.Testing the P-FS device with various bacterial species(E.coli 25922,S.aureus 25923,E.coli MG1655,Lactobacillus brevis,and S.mutans 3065)demonstrated successful identification based on their unique Raman fingerprints.The bacterial interface with regions within the plasmonic array,where the electromagnetic field is most intensely concentrated—called nanoplasmonic hotspots—on the P-FS significantly enhances sensitivity,enabling more precise detection.SERS intensity mappings from the Raman spectrometer are transformed into digital signals using a threshold-based approach to identify and quantify bacterial distribution.Given the P-FS’s ability to enhance vibrational signatures and its scalable fabrication under routine conditions,we anticipate that nanoplasmonic-enhanced Raman spectroscopy—utilizing nanostructures made from metals(specifically gold and silver)deposited onto a nitrocellulose membrane to amplify Raman scattering signals—will become the preferred technology for reliable and ultrasensitive detection of various analytes,including those crucial to human health,with strong potential for transitioning from laboratory research to clinical applications.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.
基金the support of the National Natural Science Foundation of China(Nos.T2325027,12274448,12325405,and 12174390)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB33000000).
文摘Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorage odd elasticity,engendering phenomena unattainable in traditional passive or active systems.Here,we study the effects of odd viscosity and elasticity on phase behaviors of active spinner systems.We find the spinner fluid under a simple shear experiences an anisotropic gas-liquid phase separation driven by the odd-viscosity stress.This phase separation exhibits equilibrium-like behavior,with both binodal-like and spinodal curves and critical point.However,the formed dense liquid phase is unstable,since the odd elasticity instantly takes over the odd viscosity to condense the liquid into a solid-like phase.The unusual phase behavior essentially arises from the competition between thermal fluctuations and the odd response-induced effective attraction.Our results demonstrate that the cooperation of odd viscosity and elasticity can lead to exotic phase behavior,revealing their fundamental roles in phase transition.
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.
基金supported by the taxpayers of South Korea through the Institute for Basic Science(IBS-R020-D1)the Bio&Medical Technology Development Program of the National Research Foundation(NRF)funded by the Korean government(MSIT)(No.RS-2024-00508821).
文摘Raman spectroscopy offers non-destructive and highly sensitive molecular insights into bacterial species,making it a valuable tool for detection,identification,and antibiotic susceptibility testing.However,achieving clinically relevant accuracy,quantitative data,and reproducibility remains challenging due to the dominance of bulk signals and the uncontrollable heterogeneity of analytes.In this study,we introduce an innovative diagnostic tool:a plasmonic fidget spinner(P-FS)incorporating a nitrocellulose membrane integrated with a metallic feature,referred to as a nanoplasmonic-enhanced matrix,designed for simultaneous bacterial filtration and detection.We developed a method to fabricate a plasmonic array patterned nitrocellulose membrane using photolithography,which is then integrated with a customized fidget spinner.Testing the P-FS device with various bacterial species(E.coli 25922,S.aureus 25923,E.coli MG1655,Lactobacillus brevis,and S.mutans 3065)demonstrated successful identification based on their unique Raman fingerprints.The bacterial interface with regions within the plasmonic array,where the electromagnetic field is most intensely concentrated—called nanoplasmonic hotspots—on the P-FS significantly enhances sensitivity,enabling more precise detection.SERS intensity mappings from the Raman spectrometer are transformed into digital signals using a threshold-based approach to identify and quantify bacterial distribution.Given the P-FS’s ability to enhance vibrational signatures and its scalable fabrication under routine conditions,we anticipate that nanoplasmonic-enhanced Raman spectroscopy—utilizing nanostructures made from metals(specifically gold and silver)deposited onto a nitrocellulose membrane to amplify Raman scattering signals—will become the preferred technology for reliable and ultrasensitive detection of various analytes,including those crucial to human health,with strong potential for transitioning from laboratory research to clinical applications.
