objectives the aim of this study was to assess soils of khorramabad metropolis in order to establish the concentration of lead and develop a contamination factor map. materials and methods soil samples were collected from 25 different urban parks in khorramabad, iran. the mean pb contents in the urban topsoil samples were compared with mean concentrations for other cities around the world. a sp...

OBJECTIVE This paper describes the physical structure and environmental contamination in selected hospital wards in three government hospitals in Bangladesh. METHODS The qualitative research team conducted 48 hours of observation in six wards from three Bangladeshi tertiary hospitals in 2007. They recorded environmental contamination with body secretions and excretions and medical waste and o...

Cartilage is an avascular, alymphatic, and aneurysmal structure, so it difficult to heal properly if injury occurs. Using Chondrogenic Adipose Mesenchymal Stem Cell (AdMSC) secretome as adjuvant one of the therapeutic options overcome problem cartilage. Storage distribution problems must be solved we use this method. This study aims characterize Freeze-dried chondrogenic AdMSC secretome. Secret...

There are many definitions of the term contamination. Jefferis (2002 p. 75) provided the simple definition Bcontamination is a chemical, a living organism or energy in the wrong place.^ Paraphrasing this definition, contamination is the presence of an unwelcome component in a material, physical body, place, or other entity. In the natural environment, contamination implies that an exotic consti...

There are a number of physical failure mechanisms that can affect the reliability of a CMOS ASIC. Some of the common mechanisms can be mitigated by adhering to foundry design rules (Electromigration, Time Dependent Dielectric Breakdown (TDDB), and Hot Carrier Damage). Certain fabrication steps can cause stress that may lead to latent damage that may later reduce the useful lifetime of an ASIC. ...

Soil contamination is one of the major threats constraining proper functioning of the soil and thus provision of ecosystem services. Remedial actions typically only address the chemical soil quality by reducing total contaminant concentrations to acceptable levels guided by land use. However, emerging regulatory requirements on soil protection demand a holistic view on soil assessment in remedi...

Wireless communication systems are very vulnerable to pilot contamination attacks, which represents a major physical layer security issue. Hence, it is necessary to apply different approaches and methods to the detection of this type of attack. One effective method proposed in the literature is 2-N-PSK pilot detection, which consists of training with two random N-PSK pilots. Although the method...

The translocation and absorption of 58Co (CoCl2) through a wound was investigated experimentally with mice. Physical and chemical skin damages became the objects of the investigation. Abrasion, puncture and incision were made for types of the physical damage. The chemical damage included both acid and alkaline burns. The absorptions of the radionuclide through the contaminated wounds were measu...

The performance of an in-situ groundwater remediation project is a complicated function of many factors, including subsurface flow rates and patterns, diffusion/dispersion, rate of contamination from the source, retardation and rate of degradation of the contaminant(s), availability of co-reactants for degradation, etc. The complexity of the interactions between these phenomena makes it difficu...

The study aimed to evaluate the bacterial contamination of powdered herbal medicinal preparations sourced from identified herbal retail outlets in different parts of Kaduna metropolis. The assessments of the contamination of the herbal products were carried out using standard procedures: total aerobic bacterial plate count, measurement of some physical parameters, isolation and characterization...