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The Stability Constants of Complexes of BDBPH- Metals and Species Distributions

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Chinese Chemical Letters 2001年第10期12卷 925-928页

作者： Guo Qiang SHANGGUAN Jun ZHU Ke Ying WANG arthur EMARTELL Department of Chemistry Jining Medical CollegeJining 272013 Department of Chemistry Texas A&M UniversityCollege StationTexas 77842

The stability constants of the mononuclear complexes of BDBPH-Zn(II), Cd(II) and Mn (II) were determined by the potentiometric equilibrium measurements, and species distributions were also discussed. The metal ions do not combine with the ligand until the first two protons of the ligand have almost been completely neutralized. The main species were mononuclear complexes with the diprotonated ligand, MH,L. The three metal ions also form mono- and noprotonated (fully deprotonated) complexes, MHL, ML. The relative order of stabilities of the mononuclear complexes, ML, is Zn(II) > Cd(II) > Mn(II). The ligand has strong tendency to form mononuclear complexes with Zn(II), Cd(II) and Mn(II), and it can also form dinuclear complexes at high pH.

关键词： BDBPH stability constant mononuclear complex species distribution

Efficacy of an esfenvalerate plus methoprene aerosol for the control of eggs and fifth instars of Plodia interpunctella （Lepidoptera： Pyralidae）

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Insect Science 2010年第1期17卷 21-28页

作者： Emily A. Jenson Frank H. arthur James R. Nechols Kansas State University USDA-ARS Grain Marketing and Production Research Center Manhattan KS USA

Aerosol insecticides may provide an alternative to fumigants for control of the Indianmeal moth, Plodia interpunctella （Hübner）, the Indianmeal moth, a major insect pest of stored processed food. In this study, eggs and larvae （5th instars） ofP. interpunctella were exposed to aerosol applications of the pyrethroid esfenvalerate and insect growth regulator methoprene, alone and in combination, in open and obstructed positions inside small sheds. When larvae were exposed to methoprene alone, adult emergence from those exposed larvae was 7.1% ± 1.5%. In contrast, adult emergence was 92.5% ± 3.5% when larvae were exposed to esfenvalerate alone. When eggs were exposed to methoprene, adult emergence of those exposed eggs was approximately 75%; however, when eggs were exposed to esfenvalerate, adult emergence was approximately 35%. In the combination treatment of methoprene plus esfenvalerate at their respective label rates, adult emergence following larval exposure was 0.91% ±0.61% compared to 16.3% ± 9.6% when eggs were exposed. Based on our results, methoprene alone is highly effective in reducing adult emergence after larval exposure. However, it is not as effective on eggs as esfenvalerate. A combination treatment of esfenvalerate plus methoprene could be used to control eggs and the wandering-phase larval stages ofP. interpunctella. An economic risk analysis also supports a strategy of combining methoprene and esfenvalerate.

关键词： control Indianmeal moth Plodia interpunctella

The Determination of the Protonation Constants of A New Macrocyclic Dinucleating Ligand, BDBPH

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Chinese Chemical Letters 2001年第2期12卷 171-174页

作者： Guo Qiang SHANGGUAN Ning WANG Hong En WANG arthur EMARTELL Department of Chemistry Jining Medical CollegeJining 272013 Department of Chemistry Texas A&M UniversityCollege StationTexas 77842

The protonation constants of a new dinucleating 24-membered hexaazadiphenol macrocyclic ligand, BDBPH, were determined by potentiometric measurement at 25.0 degreesC and mu = 0.100 mol.L-1 (KCl). The species distributions of the deprotonated and protonated compounds in the pH range from 2 to 12 aqueous solutions were also described.

关键词： Protonation constant potentiometric measurement macrocyclic ligand

The methodology flaws in Hinman's acupuncture clinical trial, Part Ⅱ: Zelen design and effectiveness dilutions

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Journal of Integrative Medicine 2015年第3期13卷 136-139页

作者： arthur Yin Fan McLean Center for Complementary and Alternative Medicine PLC.

In the October 2014 publication of JAMA, Dr. Hinman and colleagues published the study “Acupuncture for Chronic Knee Pain： A Randomized Clinical Trial,” which concluded that in patients older than 50 years with moderate or severe chronic knee pain, neither laser nor needle acupuncture conferred benefit over sham for pain or function. Our findings do not support acupuncture for these patients.

关键词： acupuncture chronic knee pain Hinman Zelen design clinical trial statistics flaws

Effects of colored noise on the dynamics of quantum entanglement of a one-parameter qubit-qutrit system

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Chinese Physics B 2022年第5期31卷 141-149页

作者： Odette Melachio Tiokang Fridolin Nya Tchangnwa Jaures Diffo Tchinda arthur Tsamouo Tsokeng Martin Tchoffo Research Unit of Condensed Matter Electronic and Signal ProcessingDepartment of PhysicsDschang School of Sciences and TechnologyUniversity of DschangPO Box:67 DschangCameroon Material Science Research Group Physics LaboratoryDepartment of PhysicsPost Graduate SchoolUniversity of MarouaPO Box:814 MarouaCameroon Centre d’Etudes et de Recherches en Agronomie et en Biodiversite Faculte d’Agronomie et des Sciences AgricolesUniversite de DschangCameroun

We analyzed the effect of colored noise on the negativity dynamics of a hybrid system consisting of a qubit-qutrit and not interacting,prepared from the start in an entangled one-parameter state and acting with noise in local and non-local *** this pink and brown noise we investigated two different situations:in the first situation,the noise is produced by a bistable oscillator with an unknown exchange rate;however,in the second situation,the noise is generated by a set of bistable *** found that entanglement decreases with time to zero,and undergoes the phenomenon of sudden death and *** pink noise is more prone to entanglement than the brown noise and the non-local environment is more prone to entanglement than the local *** the number of fluctuators is increased,entanglement decays faster and finally,for certain parameters of the initial state,the subsystems are not affected by the noise.

关键词： entanglement hybrid system qutrit colored noise

Home Delivery and Last-mile Logistics——A Comparative Study between China and France

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Home Delivery and Last-mile Logistics——A Comparative Study...

作者： WOLF arthur-James 上海交通大学

学位级别：硕士

The present paper will aim at understanding the influence of e-Commerce on~1logistics,and especially on its last part:the last-mile *** has been studied for centuries,especially by French people who created it as part of their military *** last-mile logistics,however,has not been studied for long,as it is considered to be a new *** emerges in the late 1990’***,it became more and more important as e-Commerce ***,the existing literature shows how e-commerce has reinforced the“hubs and spokes”*** have shown the Internet-enabled supply chain（*** Anderson,Stanford）,the neighbourhood effects with trials on Internet（Bell＆Song,2007）or even the long-tail theory（Chris Anderson,2004）.But,none spoke about the paradox of home deliveries:despite the cost and the complexity of last-mile logistics,e-commerce has generalized the use of home *** last mile is more and more constraining,as it represents the most costly and the most inefficient part of the supply *** is particularly important for our thesis as I will use this starting point to present the paradox of home *** is said to be the more complex and the more costly part of the entire supply chain and yet,it seems that home delivery has become the norm,being indivisible from online *** is true in China as well as in France but solutions are different due to economic,demographic and cultural *** is the influence of home deliveries on other deliveries?Why has it become the norm?And to what extent in France and China?

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The methodology flaws in Hinman's acupuncture clinical trial, Part Ⅲ: Sample size calculation

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Journal of Integrative Medicine 2015年第4期13卷 209-211页

作者： arthur Yin Fan McLean Center for Complementary and Alternative Medicine PLC.

In the October 2014 publication of JAMA,*** and colleagues published the study＂Acupuncture for Chronic Knee Pain：A Randomized Clinical Trial,＂in which the authors concluded that＂in patients older than50 years with moderate or severe chronic knee pain,neither laser nor needle acupuncture conferred benefi t over sham for pain or *** fi ndings do not support acupuncture[1]

关键词： acupuncture chronic knee pain Hinman sample size clinical trial flaws

Segmented sedentary time and physical activity patterns throughout the week from wrist-worn ActiGraph GT3X+ accelerometers among children 7-12 years old

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Journal of Sport and Health Science 2020年第2期9卷 179-188页

作者： Gillian McLellan Rosie arthur Samantha Donnelly Duncan S.Buchan School of Health and Life Sciences The University of the West of ScotlandInstitute of Clinical Exercise and Health ScienceBlantyreG72 OLHScotlandUK

Background:This study examined the volume and patterns of physical activity(PA) and sedentary time(ST) across different segments of the week among boys and ***:A total of 188 children aged 7-12 years wore a wrist-mounted ActiGraph GT3 X+accelerometer for 7 *** spent in PA and ST was calculated using ActiLife *** mean number of minutes of light PA,moderate PA,vigorous PA,moderate-to-vigorous PA(MVPA),and ST were calculated per weekday(before school,during school,and after school) and per weekend day(morning and afternoon-evening).Results:After school represented the greatest accumulation of ST compared with before school and during school *** engaged in225.4 min/day of ST(95% confidence interval(CI):216-235),and girls engaged in 222.2 min/day of ST(95%CI:213-231).During school,boys engaged in significantly more MVPA than girls(46.1 min/day(95%CI:44-48) vs.40.7 min/day(95%CI:39-43)).Across the whole weekday,boys participated in significantly more MVPA than girls(103.9 min/day(95%CI:99-109) vs.95.7 min/day(95%CI:90-101)).The weekend afternoon—evening segment represented the larger accumulation of ST,where boys were significantly more sedentary than girls(367.5 min/day(95%CI:353-382) vs.339.8 min/day(95%CI:325-355),respectively).Conclusion:Our findings suggest that children are highly sedentary and spend little of their time in school in MVPA,especially *** breaks in school elicit increases in light PA and *** work should consider the use of more active breaks within school time to encourage PA and reduce ST.

关键词： Accelerometry School Segments Weekday Youth

The methodology flaws in Hinman's acupuncture clinical trial, Part Ⅰ: Design and results interpretation

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Journal of Integrative Medicine 2015年第2期13卷 65-68页

作者： arthur Yin Fan Mc Lean Center for Complementary and Alternative Medicine PLC.

In the October 2014 edition of JAMA, Dr. Hinman and her colleagues published an acupuncture clinical trial entitled Acupuncture for Chronic Knee Pain： A Randomized Clinical Trial＂ and concluded that in patients older than 50 years with moderate or severe chronic knee pain, neither laser nor needle acupuncture conferred benefit over sham for pain or function. Our findings do not support acupuncture for these patients[1].

关键词： acupuncture arthralgia chronic knee pain Hinman Zelen design clinical trial statistics flaws