山羊绒和山羊肤皮点的均一化染色

为了解决在传统山羊绒染色加工过程中,尤其是染制浅色时,肤皮点染料吸附率高、着色深的问题,研究一种适合毛用活性染料染羊绒的新型染色工艺,探讨新型染色工艺中各个因素对染色样品羊绒纤维和肤皮点颜色的均一化(同色性)效果的影响,优化出最佳的羊绒纤维与肤皮点均一化染色新工艺,并比较新工艺和传统工艺的区别.研究结果表明,新工艺染色方法对山羊绒纤维和肤皮点均一化染色效果具有明显的改善作用,并减小了纤维的染色损伤,改善了染色纤维的手感.

山羊绒与肤皮点同色性研究

采用Lanasol活性染料对山羊绒纤维进行染色,解决纤维与肤批点同色性问题,并与传统染色工艺进行对比。结果表明:采用Lanasol活性染料,冰醋酸0.5%(omf),助剂XTR-23%(omf),95℃染色30 min,染得的产品K/S值、色光和色牢度与传统工艺基本一致,且同色效果较传统工艺提高2~3个等级,显著提升浅色山羊绒染色产品的质量。

羊绒纤维与肤皮点的活性染料同色性染色

针对山羊绒染制浅色时存在纤维颜色浅、肤皮点颜色深的同色性差问题,对团队前期研发的助剂XTR-2进行性能改进。采用与染料亲和力较高的特种助剂组分SN与XTR-2复配制备了助剂XTR-3,并将其用于山羊绒纤维的活性染料染色,优化了山羊绒纤维活性染料染色同色性的工艺参数。结果表明:采用助剂XTR-3对山羊绒进行活性染料染色,可避免染色起始阶段酸的应用,弱化纤维与肤皮点因吸酸量的差异而造成对染料吸附量的差异,明显改善染色同色性及匀染性,同色性比传统工艺提高2~3级。

微悬浮体染色在去除羊绒肤皮深色点上的应用

采用德龙素(Delosol)蓝3R染料以微悬浮体形式对山羊绒进行染色,通过正交试验,确定了微悬浮体染色优化工艺:微悬浮体化助剂WAO用量2%(omf),微悬浮体化助剂WTR用量1.5%(omf),HAc用量1.5%(omf)。结果表明:微悬浮体染色样品的色差等级为4.0级,基本上看不出深色肤皮点,达到了消除深色肤皮点的目的,且采用微悬浮体染色大大缩短了染色时间,减少了对羊绒的损伤。

Spatiotemporal Distribution of Phlebotomine Sand Flies （Diptera： Psychodidae） in a Focus of Cutaneous Leishmaniasis in Foum Jamaa （Azilal, Atlas of Morocco）

An entomological survey of Phlebotomine sand flies （Diptera： Psychodidae） was carried out in three sectors of Foum Jamgta region （province of Azilal, Morocco） during the year 2010. Morphological identification was performed on a total of 1,152 sand flies （23% females and 77% males） collected by sticky paper traps. 80% of the total collected flies were identified as Phlebotomus （Paraphlebotomus） sergenti （Parrot） （57%） and Phlebotomus （Larroussius） longicuspis （Nitzulescu） （23%）. In addition to these dominant species, four other species were found, Phlebotomus （Phlebotomus） papatasi （Scopoli）, Sergentomyia （Sergentomyia） minuta （Rondani）, Phlebotomus （Larroussius） perniciosus （Newstead） and Phlebotomus （Paraphlebotomus） chabaudi （Croset）. Overall, the population dynamics show a yearly bimodal pattern related to rainfall and temperature, and with high density around human dwellings. The spatiotemporal distribution of sand fly species was helpful to discuss strategies that might be useful in controlling cutaneous leishmaniasis transmission in this endemic focus.

Treatment of Cough and Dyspnea due to Acute Bronchitis by Plaster for Cough and Dyspnea——A Report of 735 Cases

In the light of the theory of treating the internal disease externally, an externally used plaster for treating cough and dyspnea due to acute bronchitis (Ke Chuan Yi Tie Kang [symbol: see text]-[symbol: see text]) was successfully applied to 735 cases of acute bronchitis (the treatment group), with the other 423 cases treated with routine western drugs as controls. The results showed that the cure rate in the treatment group was significantly higher than that in the control group (P

In vivo skin penetration and metabolic path of quantum dots

The skin is the largest organ of the body and is a potential route of exposure to sunscreens and cosmetics containing nanoparticles; however, the permeability of the skin to these nanoparticles is currently unknown. In this paper, we studied the transderreal delivery capacity through mouse skin of water-soluble CdSeS quantum dots （QDs） and the deposition of these QDs in the body. QD solution was coated onto the dorsal hairless skin of male ICR mice. Fluorescence microscopy and transmission electron microscopy （TEM） were used to observe the distribution of QDs in the skin and organs, and inductively coupled plasma-mass spectrometry （ICP-MS） was used to measure the 111Cd content to indicate the concentration of QDs in plasma and organs. Experimental results indicate that QDs can penetrate into the dermal layer and are limited to the uppermost stratum corneum layers and the hair follicles. Through blood circulation, QDs deposit mostly in liver and kidney and are difficult to clear, 111Cd concentration was greater than 14 ng g-1 in kidney after 120 h after 0.32 nmol QDs was applied to a mouse. These results suggest that QDs have in vivo transdermal delivery capacity through mouse skin and are harmful to the liver and kidney.

Aligned Acupuncture at Muscle Regions plus Cutaneous Needle for Upper Limb Spasticity After Stroke: A Multicenter Randomized Controlled Trial

Objective: To evaluate the clinical efficacy of aligned acupuncture at the muscle regions plus cutaneous needle for post-stroke upper limb spasticity.Methods: By adopting a design of multicenter randomized controlled clinical trial, 488 patients with post-stroke upper limb spasticity were randomized into a treatment group and a control group, 244 in each group. In addition to rehabilitation training, the treatment group received aligned acupuncture at the muscle regions plus cutaneous needle therapy and the control group received conventional Western medicine. After successive 3-week treatments, the clinical efficacy, spasticity degree of the upper limb, joint function, and neurological defect degree were evaluated in the two groups. Results: The total effective rate was 93.4% in the treatment group versus 61.5% in the control group, and the difference was statistically significant(P < 0.05). The upper-limb spasticity degree, joint function, and neurological defect degree were improved significantly in both groups after intervention(P<0.05), and the improvements in the treatment group were more significant than those in the control group(P<0.05 or P<0.01). Conclusion: Aligned acupuncture at the muscle regions plus cutaneous needle therapy is effective in treating post-stroke upper limb spasticity.

The arresting phase determines the total healing time of a locally irradiated skin wound in swine

Objective：Radiation is an important cause of delayed wound healing,and there still exist many questions regarding the patterns and mechanisms of wound healing.This study investigated the characteristics of wound healing after varying doses of local radiation and explored possible causes of the delay in healing caused by radiation.Methods：A full-thickness dorsal longitudinal skin tissue,2 cm in diameter,was excised after local irradiation on one side of the back of swine,and the other side was wounded as a control.The size of the wound area was recorded every two days after injury.Pathological changes,proliferating cell nuclear antigen（PCNA,immunohistochemistry）and apoptosis levels（TUNEL assay）were measured at different time points after wounding.Results：The course of wound healing can be divided into four phases,namely：the arresting phase,the healing priming phase,the fast healing phase,and the healed phase.Although the total wound healing time was closely correlated to the dose of irradiation（R2=0.9758）,it was more dependent on the length of the arresting phase（R2=0.9903）because once the arresting phase ended,the wound healed at a similar speed regardless of radiation doses.Pathological analysis showed that compared with the control side there were more necrotic tissues,slower epithelial crawling,as well as fewer blood vessels and cellular components in the irradiated side at the arresting phase,while other phases revealed no significant difference concerning these measurements.Immunohistochemistry showed that the irradiated wounds had significantly less PCNA-positive and more TUNEL-positive labeling of cells in the arresting phase than in other phases.Moreover,the changes were positively related to the radiation doses,but there was no obvious difference in cell proliferation or apoptosis among the healing priming phase,fast healing phase or healed phase,whether on the control side or on the irradiated side.Conclusions：After local irradiation,the length of the arresting phase determines the wound healing time.Increased apoptosis and decreased cell proliferation might be an important reason for the formation of the arresting phase.