Publications by authors named "Zhihuan Huang"

Climate change has accelerated the habitat loss and fragmentation of wildlife. Dye plants of "Fengxiang dyeing" are important indigenous natural resources for traditional printing and dyeing craft in southwest China, is of practical and cultural importance for dozens of ethnic minorities. However, lack of the spatial distribution information of these plants has hampered holistic and efficient conservation management measures.

View Article and Find Full Text PDF

The development of high-flux, durable and completely self-cleaning membranes is highly desired for separation of massive oil/water mixtures. Herein, differently crosslinked poly(2-methacryloyloxylethyl phosphorylcholine) (PMPC) brush grafted stainless steel mesh (SSM) membranes (SSM/PMPCs) were fabricated by integrating of mussel inspired universal adhesion and crosslinking chemistry with surface-initiated activators regenerated by electron transfer atom transfer radical polymerization (SI-ARGET-ATRP). The durability and self-cleaning performance of the prepared SSM membranes were evaluated by separating sticky crude oil/water mixtures in a continuous recycling dead-end filtration device.

View Article and Find Full Text PDF

The upsurge in anthropogenic climate change has accelerated the habitat loss and fragmentation of wild animals and plants. The rare and endangered plants are important biodiversity elements. However, the lack of comprehensive and reliable information on the spatial distribution of these organisms has hampered holistic and efficient conservation management measures.

View Article and Find Full Text PDF

Incorporating bioactive nanofillers and creating porous surfaces are two common strategies used to improve the tissue integration of polyetheretherketone (PEEK) material. However, few studies have reported the combined use of both strategies to modify PEEK. Herein, for the first time, dual nanoparticles of graphene oxide (GO) and hydroxyapatite (HAp) were incorporated into PEEK matrix to obtain ternary composites that were laser machined to create macropores with diameters ranging from 200 μm to 600 μm on the surfaces.

View Article and Find Full Text PDF

We sequenced the complete chloroplast of (Malvaceae), which is 161,253 bp in size and consists of a large single-copy region (LSC) of 90,142 bp and a short single copy region (SSC) of 20,067 bp. It was separated by two inverted repeats (IRs) regions of 25,522 bp for each. The GC content of the whole genome, LSC, SSC, and IRs region was 36.

View Article and Find Full Text PDF

Pollen grains can be dispersed singly or variously aggregated in groups. Whether the evolution of pollen aggregation is driven by the pollinator remains unexplored. We hypothesize that an extensive pollen aggregation is favored under a scarcity of pollinators.

View Article and Find Full Text PDF

When insect activity is limited at low temperature, birds may be comparatively more important pollinators than insects for flowering plants. It has been thought that many large-flowered species are pollinated by local birds in the Himalayan regions because most of these species flower in spring at high elevation with cool atmospheric temperature. However, experimental evidence for the role of bird pollination in this hyperdiverse genus remains scarce.

View Article and Find Full Text PDF

Premise Of The Study: Properties of floral nectar have been used to predict if a plant species is pollinated by birds. To see whether winter-flowering plants evolve nectar properties corresponding to bird pollinators, nectar properties of several species (including the golden-flowered tea), as well as the role of floral visitors as effective pollinators, were examined.

Methods: Potential pollinators of were identified at different times of day and under various weather conditions.

View Article and Find Full Text PDF

Effective health care models to scale up combination antiretroviral therapy (ART) are needed in rural southwestern China. We aimed to evaluate the ART treatment outcomes and their associations with patients' demographic characteristics and pre-treatment clinical features in a scaled-up provincial ART program serving eight heavily HIV-affected prefectures in Yunnan Province. We abstracted information from a computerized database for adults initiating ART between July 2007 and September 2008.

View Article and Find Full Text PDF

The matching quality between the femoral head prosthesis and the acetabulum plays an important role in the operative treatment of femoral head prosthetics and femoral head replacement. To obtain the optimal model of the femoral head prosthesis for the target sufferer, an individualized modeling system is shown in this paper. It can recover the necrotic femoral heads into the satisfactory models.

View Article and Find Full Text PDF

Background: Improving utilization of antenatal care is a critical strategy for achieving China's Millennium Development Goal of decreasing the maternal mortality ratio (MMR). While overall utilization has increased recently in China, an urban vs. rural disparity in access remains.

View Article and Find Full Text PDF

This study uses data from the nationally representative Early Childhood Longitudinal Study-Birth Cohort to examine the relationship between maternal depression, maternal sensitivity, and child attachment, specifically among Hispanic and Asian American mothers and their young children, and to explore the role of cultural variation and nativity in the associations between these variables. Data used in this study were collected from biological mothers on two occasions, when their children were approximately 9 and 24 months of age. Trained observers completed a direct assessment of child attachment security and an observational measure of maternal sensitivity, data on maternal depression was obtained via maternal report.

View Article and Find Full Text PDF

Objectives: We examined health status and health services access and utilization of Chinese, Filipino, Japanese, Korean, South Asian, Vietnamese, and non-Hispanic White children in California.

Methods: We analyzed aggregated data from the 2003 and 2005 California Health Interview Survey (648 Chinese, 523 Filipino, 235 Japanese, 308 Korean, 314 South Asian, 264 Vietnamese, and 8468 non-Hispanic White children aged younger than 12 years), examining the relationship between Asian ethnicities and outcomes.

Results: Compared with non-Hispanic White children, Korean children were 4 times more likely to lack health insurance; Filipino children were twice as likely to not have had recent contact with a doctor; Chinese, Korean, and Vietnamese children were less likely to have visited an emergency room in the past year; and Chinese, Korean, and Vietnamese children were more likely to be in fair or poor health.

View Article and Find Full Text PDF

Objectives: We examined the association between children's state of residence and their access to health care among specific types of immigrant families: foreign-born children, US-born children with 1 foreign-born parent, US-born children with both foreign-born parents, and nonimmigrant families.

Methods: We analyzed data from 12 400 children from the 2003 National Survey of Children's Health in the 6 states with the highest proportion of immigrants (California, Florida, Illinois, New York, New Jersey, and Texas).

Results: Multivariable analyses indicated that among foreign-born children, those living in California, Illinois, and Texas were more likely to lack access to health care compared with those living in New York.

View Article and Find Full Text PDF

In light of the abruptness and severity of the HIV/AIDS epidemic in Asia, there has been growing concern in recent years about the HIV/AIDS risks with the steady rate of Asian and Pacific Islander (AAPI) migration to the United States. Little is known, however, about existing HIV risks among non-MSM (men who have sex with men) AAPIs. The purpose of this study was to examine self-reported HIV testing behaviors and their correlates among a sample of 604 Southeast Asians living in a U.

View Article and Find Full Text PDF

Purpose: We assessed the prevalence, incidence, and correlates of substance use among Asian American individuals transitioning from adolescence to young adulthood.

Methods: Data were obtained from the National Longitudinal Study of Adolescent Health, Wave II (1996) and Wave III (2001). Information on substance use was abstracted from a nationally representative sample of 1108 Asian Americans and Pacific Islanders (AAPIs) from both Waves.

View Article and Find Full Text PDF

Asian Americans (AA) are thought to have the lowest rates of substance use. This study examined substance use prevalence among 494 urban-dwelling Southeast Asians using snowball techniques. Prevalence estimates were age-adjusted proportionate to the U.

View Article and Find Full Text PDF

Unlabelled: To assess the prevalence of bullying behaviors and morbidities, including overweight/obesity and frequent physical and emotional symptoms, and the associations between such morbidities and frequent involvement in bullying behaviors among US adolescents in grades 6 through 10.

Design, Setting, And Participants: This study was based on an analysis of US data from the 1998 World Health Organization Health Behavior in School-aged Children survey. The survey provides nationally representative, cross-sectional survey information on 15,686 US students in grades 6 through 10.

View Article and Find Full Text PDF

Background: HIV-infected children in China have not been well studied. This national survey describes the demographic characteristics and the associated diagnostic and antiretroviral treatment (ART) efforts directed toward surviving HIV-infected children.

Methods: A cross-sectional study was conducted in the 6 provinces with the highest HIV prevalence: 4 former plasma donation (FPD) provinces and 2 intravenous drug use (IDU) provinces.

View Article and Find Full Text PDF

Objectives: This report presents the national estimates of maternal depressive symptomatology prevalence and its socio-demographic correlates among major racial/ethnic-nativity groups in the United States. We also examined the relationship of mental health-seeking patterns by race/ethnicity and nativity.

Methods: Using the Early Childhood Longitudinal Survey-Birth Cohort Nine-month data, we present the distribution of Center for Epidemiological Study-Depression (CES-D) score by new mothers' nativity and race/ethnicity.

View Article and Find Full Text PDF

Academic health centers, health systems, and, to a lesser degree, medical schools and residency programs have merged, consolidated, or formed strategic alliances. There are few published reports of residency program mergers, and only one involving a merger between a historically black college and university (HBCU) and a predominantly white institution.This case study describes a merger between two dissimilar urban pediatric residency programs.

View Article and Find Full Text PDF

Purpose: There is a lack of current information concerning the knowledge and attitudes of urban adolescents regarding menstruation. The purpose of this research was to determine: (1) The prevalence of dysmenorrhea, premenstrual symptoms and other menstrual disorders among adolescents who receive their health care at an urban adolescent health center; (2) The attitudes and expectations adolescents have relating to their menstrual period; and (3) The relationship between teens' attitudes and expectations regarding menses and actual menstrual-related morbidities such as school absenteeism.

Methods: A 35-item, survey was administered to postmenarcheal adolescents ages 12-21 years.

View Article and Find Full Text PDF

Objectives: We examined the health status and patterns of health care use of children in US immigrant families.

Methods: Data from the 1999 National Survey of America's Families were used to create 3 subgroups of immigrant children: US-born children with noncitizen parents, foreign-born children who were naturalized US citizens, and foreign-born children with noncitizen parents. Chi-square and logistic regression analyses were used to examine relationships between immigrant status and health access variables.

View Article and Find Full Text PDF

Background: Head injury is the leading cause of death in children. Child safety legislation and risk-specific intervention programs have flourished to mitigate the incidence of injury to children. This analysis documents the trend in head injury to children in a specific institution.

View Article and Find Full Text PDF

Objectives: To examine the association between parental immigrant status and awareness of health and community resources to help address common family problems.

Methods: Using the 1999 National Survey of America's Families, a survey of the health, economic, and social characteristics of children and adults, bivariate and multivariate analyses were conducted on 35,938 children to examine the relationship between parents' immigrant status (U.S.

View Article and Find Full Text PDF