The importance of E. coli as an indicator organism in fresh water has led to numerous studies focusing on cell properties and transport behavior. However, previous have been unable assess if differences surface genomic variation are associated with different environmental habitats. In this study, we investigated the characteristics obtained from stream bottom sediments. Cell were measured for 77 genomically strains (44 isolated sediments 33 water) under common conditions Upper Midwestern...

BACKGROUND An increasing number of studies to date have found preoperative magnetic resonance imaging (MRI) features valuable in predicting the prognosis rectal cancer (RC). However, research is still lacking on correlation between MRI and risk recurrence after radical resection RC, urgently necessitating further in-depth exploration. AIM To investigate parameters RC provide an effective tool for postoperative recurrence. METHODS The data 90 patients who were diagnosed with by surgical...

Housefly maggot larvae (HML) have been identified as a potential alternative animal diet for the fattening process of Chinese mitten crab (Eriocheir sinensis). However, feasibility and impacts HML supplementation require further investigation. The present study evaluated effects dietary on growth indices, nutrient compositions, antioxidant activity, texture profiles edible tissues E. sinensis. results showed that effectively improved hepatic steatosis index both genders sweet amino acid...

Many decentralized wastewater reuse systems have been constructed in Beijing. However their performance is not as good expected. The total amount of reclaimed water used Beijing much less than the designed capacity. In order to understand reasons causing such poor performance, an integrated financial and economic feasibility analysis for carried out this paper. monetary values all major economic, environmental social effects are quantified. made from viewpoint project manager, while done...

To improve Chinese cities’ resilience to climate change, the Sponge City Program, which was designed tackle water pollution, storm management, and flooding, initiated in 2014. Being a major policy initiative, Program raises heated discussions among academics; however, no relevant extensive economic or financial analysis has been conducted. The research carries out an integrated on from perspectives of two stakeholders: government project manager. Different stakeholders have unique management...

This study carries out an in-depth analysis of urban water policy implementation in China through a cycle and case Sponge city program. The articulates discrete steps within the formulation process, while studies reflect specific problems project implementation. Because principal–agent relation between central local government, ‘‘double wheel’’ model is adopted to cycles at level level. Changde Zhuanghe city, two demo cities program, are chosen for analysis. shows that government orders...

Abstract The water environment in Chinese rural areas has seriously deteriorated to the extent that development of is now under threat. To deal with this issue, government been promoting wastewater treatment systems (WTS) since 2005. However, some these plants have shut down after just a few years. Thus, even though number newly built rapidly increasing, failure can impede an efficient areas. This paper investigates challenges faced by management constructed using case study method. Two...

Abstract Background Asthma’s complexity, marked by airway inflammation and remodeling, is influenced hypoxic conditions. This study focuses on the role of Hypoxia-Inducible Factor-1 Alpha (HIF-1α) P53 ubiquitination in asthma exacerbation. Methods High-throughput sequencing bioinformatics were used to identify genes associated with progression, an emphasis GO KEGG pathway analyses. An mouse model was developed, smooth muscle cells (ASMCs) isolated create vitro hypoxia model. Cell viability,...

The success or failure of operating a rainwater harvesting system (RWH) depends on both technological and non-technological factors. importance factors in attaining sustainable RWH operation is rarely emphasized. This study aims to assess the contribution through determining decisive involved use RWHs for agriculture irrigation Beijing. Beijing are not as well expected. If identified be non-technological, significance will highlighted. Firstly, 10 impact comprising selected according...

E. coli bacteria move in streams freely a planktonic state or attached to suspended particulates. Attachment is dynamic process, and the fraction of microorganisms thought be affected by both bacterial characteristics particulate properties. In this study, we investigated how properties cell surfaces stream particulates influence attachment. assays were conducted for 77 strains three model (ferrihydrite, Ca-montmorillonite, corn stover) under environmentally relevant conditions. Surface...

Recent molecular genetic data suggest that cellulose synthase (CesA) genes coding for the enzymes catalyze biosynthesis (CESAs) in Arabidopsis and other herbaceous plants belong to a large gene family. Much less is known about CesA from forest trees. To isolate new tree species, discriminative but easily obtainable homologous DNA probes are required. Hypervariable regions (HVRII) of represent highly divergent sequences can be used examine structural, expressional functional relationships...

Understanding the genetic factors that govern microbe-sediment interactions in aquatic environments is important for water quality management and reduction of waterborne disease outbreaks. Although chemical properties bacteria have been identified contribute to initiation attachment, outer membrane proteins these still remain unclear. In this study we explored attachment 78 Escherichia coli environmental isolates corn stover, a representative agricultural residue. Outer proteome analysis led...

Aim A standard procedure does not exist to distinguish between attached and unattached micro-organisms. In this study, we compared two methods quantify Escherichia coli clay particles E. freely suspended in solution: flow cytometry (attachment assay viability assay) settling (or centrifugation followed by settling). Methods Results were tested using three environmental strains collected from swine facilities (A, B C) one purchased modified pathogenic strain (ATCC 43888); four particles:...

Some examples of problems in the water and sanitation sector China will be given. Subsequently, hierarchy Chinese Government explained, before describing stakeholders governance at national municipal level. A separate section is devoted to changes structure that have been implemented already Beijing. Water has reformed achieve more integration promote experiments deal with scarcity. We studied some these projects. In particular, separation grey brown reusing treated promotion rainwater...

A sustainable dairy manure amendment for soilless crop growth systems was evaluated its ability to provide nutrients and serve as a major component of the growing media. After liquid/solid separation, solids stream containing organic N P pelletized used nutrient source cherry tomato (Solanum lycopersicum var. cerasiforme) culture in The pellets are low moisture, odor, pathogens, they can be hauled at lower cost over longer distances more easily stored than raw or composted manure. Manure...

The present paper carries out a cost benefit analysis of centralized wastewater reuse systems in Beijing. This study consists two parts: financial and economic analysis. is made from the point view plant manager, which benefits calculated. society, economic, environmental social are determined. results show that larger than cost, means financially feasible. It implies investment on profitable. ratio to 1, economically have positive effects society. From could operate long term, while...

A novel and integrated biofilm process – the sulfate reduction (SR) mixotrophic (MR) sulfide-utilization denitrification (SMSD) was recently proposed for treatment sulfur recovery. The consisted of two bioreactors: a 5.1 L anaerobic upflow reactor SR, 3.5 MR desulfurization–denitrification. experiment conducted 370 days to evaluate performance SMSD at various concentrations hydraulic retention times. successfully achieved sulfate, organics nitrogen compound removal efficiencies 94.1, 97.7...