On-body communication channels are a physical basis for the establishment of an effective and reliable wireless link between on-body nodes in wireless body area networks (WBANs).Due to normally strict limitations in transmit power and power consumptions of on-body nodes as well as the human-centered characteristics of WBANs,on-body channels are prone to be affected by the electromagnetic properties of human tissues,human movements,application environments and transceiver antennas,which increase greatly the complexity of the research on channel models.The paper discusses the developments,mathematical expressions and application characteristics of five types of on-body channel models,such as the simple path loss model,the hybrid path loss model,the small-scale fading model,the scenario-based model and the ultra-wideband model,and reviews the current progress on the modeling on-body channels.

Early-onset neonatal sepsis (EONS) is one of the major causes of mortality in neonates, especially in very low birth weight infants. EONS has no speciifc manifestations, and progresses rapidly and unexpectedly. EONS is often missed diag-nosed or even misdiagnosed due to the absence of ideal diagnostic methods in current clinical practice, and this dilemma leads to the high mortality of EONS. Therefore the accurate diagnosis in the early stage of EONS is very important. This review describes the progress in diagnostic methods of EONS including culture, blood cell counts, molecular biological technique, procalcitonin and C-reactive protein measurements, cytokine proifling and some other novel means. It may provide useful information for early diagnosis of EONS.

Aninductivelycoupledplasmamassspectrometric(ICP-MS)methodbasedonquadrupole reaction/collision ( DRC) was developed for the determination of K,Na,Ca,Mg,Al,Cu,Zn,Pb,As and Mn in food. Samples were digested with HNO3 and H2 O2 followed by dilution with ultrapure water and then analyzed directly by ICP-MS. The signal sensitivity of high concentration element ( K, Na, Ca, Mg and Al ) was suppressed easily by adjusting the voltage parameters of DRC quadrupole ( Rpa) , and the food samples could be online diluted any multiples ( i. e. from one time to million times) according to the actual need. In order to eliminate mass spectral interferences of 40 Ar35 Cl+, the operational conditions of the DRC, working with CH4 as reaction gas, were optimized for 75 As. The limits of detection for the K, Na, Ca, Mg, Al varied from 0. 013-0. 027 mg/L, and Cu, Pb, Zn, As, Mnvaried from 0. 12-0. 61 μg/L. The accurate and reliable results were obtained for validation of the ICP-MS method with food reference material according to the national standard GBW10023 , GBW10015 , GBW10018 , GBW10017 , GBW10019 and GBW10024 . As the routine method in our laboratory, the satisfactory results indicate that it has great potential for the determination of low and high concentration level elements by one single analysis in various samples.

The social tagging system on Internet is a new model for the organization and communication of information resources in the modern network environment.After the social tagging system and information communication model were outlined,the information communication model in social tagging system and its advantages and disadvantages were analyzed with Watercress Network as an example,and suggestions were put forward for its optimization.

BACKGROUND:Previous studies have demonstrated that cell transplantation has neuroprotective effect on intracerebral hemorrhage,and some researches have indicated that transplantation of bone marrow stromal cells(BMSCs)can promote neural function recovery after cerebral infarction.OBJECTIVE:To explore whether transplantation of BMSCs-modified by gtial cell line-dedved neurotrophic factor gene(GDNF)gene provides a better therapeutic effect than native BMSCs after stroke.METHODS:Totally 36 SD rats were induced intracerabral hemorrhage models by injecting autologous arterial blood,and then divided into 3 groups(n=6).each group was assigned into 2 sub-groups Rabbits in each group were stereotaxically grafted with 20 μL GDNF/BMSCs,BMSCs or saline respectively.The rats were executed at 1 and 2 weeks after operation,and immunohistochemistry was used to observe the expressions of synaptophysin(Syn)and growth associated protein-43(GAP-43)in the margin of the hemorrhagic focus.RESULTS AND CONCLUSlON:Compared with the BMSCs and control groups.both Syn-immunoreactive and GAP-43-immunoreactive products were significantly increased in the GDNF/BMSCs group(P＜0.05).Present results demonstrate that transplantation of GDNF gene-modified BMSCs provides better neuroprotection than native BMSCs delivery for stroke.

[Objective]To summarize the clinical experience of Professor YU Jiangyi in the treatment of subacute thyroiditis.[Methods]This article expounds professor YU Jiangyi's experience in treating this disease from the aspects of etiology and pathogenesis of SAT, traditional western medicine therapy and traditional Chinese medicine therapy, integrated traditional Chinese and western medicine therapy, TCM syndrome differentiation ,stage of SAT and so on. In order to better describe this therapy, clinical cases were reported.[Results]Under the guidance of the theory of traditional Chinese medicine, Professor YU Jiangyi thought that the cause of the disease was mainly emotional internal injury, deficiency of Qi and blood, coupled with the feeling of external evil or exerting internal injuries. And the clinical symptoms of SAT were reduced to heat warm, stagnation of Qi and fire or stagnation of Qi and phlegm obstruction and syndrome of deficiency of Qi and Yin in two. In combination with modern medical knowledge, Professor YU Jiangyi put forward the combination of traditional Chinese medicine and non-steroidal anti-inflammatory drugs. Professor YU Jiangyi used the method of clearing away heat and detoxicating, detumescence, and Etoricoxib in the treatment of SAT. In clinically, the curative effect was remarkable. [Conclusion]Professor YU Jiangyi's combination of clearing away heat and toxic swelling and Etoricoxib is effective, urgent treatment with western medicine, treating the root for slow disease with Chinese medicine, and worthy of inheritance and promotion.

Objective: To analyze the clinical pathologic characteristics of cases with fluorescence in situ hybridization (FISH) positive of exfoliated urothelial cells, so as to evaluate the clinical utility of FISH in the diagnosis of urothelial carcinoma (UC).Methods: A total of 271 cases of FISH positive in Department of Urology of Peking University First Hospital from Apr.2012 to Sep.2015 were recruited in this study.Retrospective analysis was made on their clinical data.For FISH analysis, labeled probes specific for chromosomes 3, 7, 17, and the p16 (9p21) gene were used to assess chromosomal abnormalities indicative of malignancy.The positive predict values (PPV) of all the techniques were analyzed.Results: Of the 271 patients, 207 cases were UC, 7 cases were non-UC, and 57 cases were benign diseases.The PPV of FISH in detecting UC was 76.4%, while the 95% confidence interval (CI) 71.3% to 81.5%.In the cohort of FISH positive, this value was similar to that of urinary cytology (PPV 86.8%, 95% CI: 78.5%-95.0%).The PPV of FISH was lower than that of cystoscopy and ureteroscopy (PPV 96.1%, 95% CI: 91.7%-100.0%).There were significant differences between this study and the PPV of FISH reported abroad (PPV 53.9%, χ2=33.048, P<0.001).Of all the UC with FISH positive, bladder cancer showed an earlier pathological stage versus renal pelvic carcinoma and ureteral carcinoma, with significance (χ2=5.894, P=0.015, and χ2=13.601, P<0.001, respectively).However, no difference was found in the size, pathological stage and pathological grade of tumors between the urinary cytology positive group and the urinary cytology negative group.The rate of high-grade UC in ureteral carcinoma of FISH positive was 92.3%, much higher than that of ureteral carcinoma reported domestically.Conclusion: The PPV of FISH in detecting UC is higher relatively, with a better clinic value for Chinese patients.The ureteral carcinoma with FISH positive obtains a higher pathological grade, which is of great guiding significance for UC.

Objective: To analyze the spatio-temporal distribution characteristics of new HIV/AIDS cases at ages of 50 years and older in Wenzhou City from 2006 to 2020, so as to provide insights into precise control of AIDS. Methods : The data of new HIV/AIDS cases aged 50 years and older in Wenzhou City from 2006 to 2020 were collected from the China Information System for Disease Control and Prevention. The temporal and spatial distribution characteristics of new HIV/AIDS cases at ages of 50 years and older were identified using global and local spatial autocorrelation analyses and spatial-temporal scan analysis. Results: Totally 1 917 new HIV/AIDS cases aged 50 years and older were detected in Wenzhou City from 2006 to 2020, and there were 179 new HIV/AIDS cases in 58 townships ( streets ) from 2006 to 2010, 643 cases in 113 townships ( streets ) from 2011 to 2015 and 1 095 cases in 147 townships ( streets ) from 2016 to 2020, respectively. The distribution of new HIV/AIDS cases appeared positive spatial autocorrelations from 2006 to 2010 ( Moran's I value=0.05, Z=1.976, P=0.046 ), from 2011 to 2015 ( Moran's I value=0.08, Z=2.314, P=0.028) and from 2016 to 2020 (Moran's I value=0.18, Z=3.956, P=0.003 ). Spatial-temporal scan analysis identified two clusters. The primary cluster mainly covered 70 towns ( streets ) in Lucheng Distrct, Ouhai District, Longwan District, Economic and Technical Development Region, Rui' an City and Pingyang County of Wenzhou City from January 1, 2014 to December 31, 2020, with a cluster radius of 34.30 km [log likelihood ratio ( LLR )=192.84, RR=2.60, P<0.001], and the secondary cluster was located in Hongqiao Township of Yueqing City from January 1, 2009 to December 31, 2015, with a cluster radius of 0 ( LLR=90.60, RR=7.27, P<0.001 ). Conclusions The number of new HIV/AIDS cases aged 50 years and older appeared a tendency towards a rise in Wenzhou City from 2006 to 2020, with spatial clusters that were predominantly identified in urban areas, Rui' an City and Pingyang County of Wenzhou City.

Objective:To investigate the effects of finasteride combined with tamsulosin hydrochloride administered during the perioperative period on glandular microvessel density in patients with benign prostatic hyperplasia.Methods:Ninety patients with benign prostatic hyperplasia who received treatment in Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine from August 2017 to August 2019 were included in this study. They were randomly assigned to receive either oral tamsulosin hydrochloride alone (control group, n = 45) or oral finasteride combined with tamsulosin hydrochloride (observation group, n = 45) during the perioperative period of transurethral resection of the prostate. All patients received 6 weeks of medication. Clinical efficacy, adverse reactions, and urodynamic indexes, glandular microvessel density, International Prostatism Symptom Score, bother score, and urine color/degree of haematuria score pre- and post-treatment were compared between the two groups. Results:The maximum urinary flow rate in each group significantly increased 6 weeks after treatment compared with before treatment. The detrusor pressure and residual urine volume in each group decreased 6 weeks after treatment compared with before treatment. After 6 weeks of treatment, the maximum urinary flow rate was significantly higher in the observation group than in the control group [(15.63 ± 2.26) mL/s vs. (13.14 ± 2.23) mL/s], and residual urine volume was significantly lower in the observation group than in the control group [(29.19 ± 4.81) mL vs. (32.25 ± 5.52) mL, t = 5.26, 2.80, both P < 0.05). International Prostatism Symptom Score measured 6 weeks after treatment and urine color/degree of haematuria score measured 1 week after treatment were (12.09 ± 2.17) points and (1.51 ± 0.27) points, respectively in the observation group, which were significantly lower than those in the control group [(14.28 ± 2.22) points, (2.03 ± 0.38) points, t = 4.73, 7.48, both P < 0.05]. Factor VIII related antigen- and CD34-positive glandular microvessel density values in the observation group were (14.74 ± 3.05) counts/visual field and (19.41 ± 3.07) counts/visual field, respectively, which were significantly lower than those in the control group [(18.08 ± 3.16) counts/visual field, (22.27 ± 3.16) counts/visual field, t = 5.10, 4.35, both P < 0.05]. The incidence of postoperative hematuria was significantly lower in the observation group than in the control group [15.56% (7/45) vs. 35.56% (16/45), χ2 = 4.73, P < 0.05]. Conclusion:Compared with tamsulosin hydrochloride alone, finasteride combined with tamsulosin hydrochloride administered during the perioperative stage can greatly improve the urodynamic indexes of patients with benign prostatic hyperplasia, reduce microvessel density value, International Prostatism Symptom Score, bother score, and decrease the incidence of hematuria. The combined therapy provides a novel idea for preventing perioperative bleeding in patients with benign prostatic hyperplasia.

OBJECTIVE To observe the clinical efficacy of Erdong Xiaoke Formula in the treatment of type 2 diabetes dry eyes with yin deficiency and heat excess syndrome and its effect on serum interleukin 17(IL-17)and interleukin 1β(IL-1β),and to ex-plore the therapeutic mechanism of Erdong Xiaoke Formula.METHODS 110 cases of type 2 diabetes patients with dry eyes of yin deficiency and heat excess syndrome from Jiangsu Province Hospital of Chinese Medicine were enrolled and randomly divided into a treatment group and a control group,55 cases each.5 cases dropped out of the treatment group and 4 cases dropped out of the control group.The control group was given a basic hypoglycemic regimen combined with topical sodium hyaluronate eye drops.The treatment group was given Erdong Xiaoke Formula in addition to the treatment in the control group.The treatment course for both groups was 4 weeks.Changes in TCM syndrome scores of the two groups of patients were observed before and after treatment,and the clinical effica-cy of TCM was evaluated.Blood glucose and pancreatic islet function-related indicators[fasting blood glucose(FBG),fasting insulin(FINS),fasting C-peptide(FCP),postprandial 2 h blood glucose(PBG),insulin secretion function index(HOMA-β),insulin re-sistance index(HOMA)-IR)],ocular surface indicators[tear break up time(BUT),corneal sodium fluorescein staining(FL),Schirmer Ⅰ test(SⅠT)],and inflammation-related indicators(IL-17,IL-1β)were detected.The occurrence of adverse reactions in the two groups of patients was observed during the treatment period.RESULTS After treatment,the total scores of TCM syn-dromes in both groups were significantly reduced(P＜0.01),the treatment group was better than the control group(P＜0.01),and the total effective rate of TCM syndromes in the treatment group was higher than that of the control group(P＜0.01);SⅠT and BUT of pa-tients in both groups increased significantly(P＜0.01),and the treatment group was better than the control group(P＜0.05,P＜0.01);the FL of patients in both groups significantly reduced(P＜0.01),and there was no significant difference between the groups;the ser-um IL-17 and IL-1β of the patients in the treatment group decreased significantly(P＜0.01),which was significantly better than that of the control group(P＜0.05).There were no significant changes in blood glucose and pancreatic islet function-related indicators in the two groups before and after treatment(P＞0.05).During the treatment,no obvious adverse reactions were observed in the two groups.CONCLUSION Erdong Xiaoke Formula can improve SⅠT,BUT,FL and eye symptoms in patients with diabetic dry eye,effectively treat diabetic dry eye,and reduce ocular surface inflammation.Its mechanism may be related to reducing serum inflammato-ry factors IL-17 and IL-1β.