Chemical Release of Endodormancy in Potato Involves Multiple Mechanisms

2015 ◽  
pp. 269-277
Author(s):  
Michael Campbell
Keyword(s):  
Chemical Release

ANTHROPOGENIC AND ECONOMIC FACTORS OF THE СRIMEAN ECOLOGY

2020 ◽  
pp. 5-14
Author(s):  
N.P. Demchenko ◽  
N.Yu. Polyakova
Keyword(s):  
Business Owners ◽  
Crimean Peninsula ◽  
The North ◽  
Chemical Release ◽  
The Crimea ◽  
Russian Plant ◽  
The Republic ◽  
The Town ◽  
Integrated Indicators ◽  
The Crimean Peninsula

The situation in the ecology of the Crimean Peninsula in recent years was discussed in the article. The analysis of absolute and integrated indicators of the anthropogenic impact showed that the ecological situation remains difficult, and according to some indicators even continues to deteriorate. In summer 2018, the situation had worsened because of the large chemical release of titanium dioxide on the north of the Crimea from the holding pond of a large Russian plant that is situated near the town of Armyansk. This, in turn, led to the contamination of the large territory on the north of the peninsula. This fact indicates insufficient control by officials of the Republic of Crimea over the implementation of the RF laws for environmental protection by business owners of various forms of ownership, especially private ownership, the level of responsibility for the environment of which is very low.

Toolkit for Epidemiologic Response to an Acute Chemical Release

2016 ◽  
Vol 10 (4) ◽  
pp. 631-632 ◽  
Author(s):  
Mary Anne Duncan ◽  
Maureen F. Orr
Keyword(s):  
Public Health ◽  
Large Scale ◽  
Technical Assistance ◽  
Local Health ◽  
Toxic Substances ◽  
Public Health Action ◽  
Public Health Agencies ◽  
Chemical Release ◽  
State And Local ◽  
The Many

AbstractWhen a large chemical incident occurs and people are injured, public health agencies need to be able to provide guidance and respond to questions from the public, the media, and public officials. Because of this urgent need for information to support appropriate public health action, the Agency for Toxic Substances and Disease Registry (ATSDR) of the US Department of Health and Human Services has developed the Assessment of Chemical Exposures (ACE) Toolkit. The ACE Toolkit, available on the ATSDR website, offers materials including surveys, consent forms, databases, and training materials that state and local health personnel can use to rapidly conduct an epidemiologic investigation after a large-scale acute chemical release. All materials are readily adaptable to the many different chemical incident scenarios that may occur and the data needs of the responding agency. An expert ACE team is available to provide technical assistance on site or remotely. (Disaster Med Public Health Preparedness. 2016;10:631–632)

Photothermal liquid release from arrayed Au nanorod/hydrogel composites for chemical stimulation

2021 ◽  
Vol 32 (1) ◽  
pp. 015003
Author(s):  
Sang-Woo Seo ◽  
Youngsik Song ◽  
Hojjat Rostami Azmand
Keyword(s):  
Near Infrared ◽  
Local Heating ◽  
Temperature Response ◽  
Device Fabrication ◽  
Fluorescent Imaging ◽  
Silicon Membrane ◽  
Chemical Release ◽  
Nir Light ◽  
Fluorescein Dye ◽  
Hydrogel Composites

Abstract Controlled photothermal actuation of liquid release is presented using periodically arrayed hydrogel columns in a macroporous silicon membrane. Thermo-responsive hydrogel is mixed with Gold (Au) nanorods, and surface plasmon-induced local heating by near-infrared (NIR) light is utilized as an actuation method. We adopted theoretical modeling, which treats the hydrogel as a poro-viscoelastic medium to understand the mechanical and liquid transport properties of the hydrogel. To demonstrate the feasibility of the liquid release control using NIR light, we first characterized the temperature response of Au nanorod embedded hydrogel in the silicon membrane using its optical transmission behavior to confirm the successful device fabrication. Next, the liquid release characteristics from the structure were studied using fluorescent imaging of fluorescein dye solution while pulsed NIR light was illuminated on the structure. We successfully demonstrate that the liquid release can be controlled using remote NIR illumination from the presented structure. Considering the periodically arrayed configuration with high spatial resolution, this will have a potential prospect for optically-addressable chemical release systems, which benefit retina prosthesis interfaces.

Simultaneous estimation of simvstatin and piperine in its formulation by UV spectrophotometric method

2021 ◽  
Vol 11 (1) ◽  
pp. 1-4
Author(s):  
Vijayamma G ◽  
Panneerselvam P ◽  
Siddeswari T ◽  
Nithya Kalyani K ◽  
Jeslin ◽  
...  
Keyword(s):  
Spectrophotometric Method ◽  
Black Pepper ◽  
The Body ◽  
Simultaneous Estimation ◽  
Chemical Release ◽  
Standard Solution ◽  
Experimental Findings ◽  
The Brain ◽  
Herbal Formulations ◽  
Validation Experiments

The active ingredient, called piperine, is present in black pepper. The ions are very small so they are easily consumed by the tissue and nervous system, causing the chemical release within the brain. Piperine has been shown to help ease gastrointestinal ailments, help with vomiting, and has the ability to help with inflammation of the body. This explains to us how simvastatin can help expedite piperine in the body. The new, clear, effective, quick, accurate ultraviolet spectrophotometric method has to be validated and developed for the study of simvastatin and piperine in bulk and poly-herbal formulations. Data from validation experiments was tested using methodological techniques. Since processing at a wavelength of 285nm, the standard solution appeared to have a far higher absorbance than at other wavelengths. Normal simvastatin and piperine have been measured in varying amounts, and they make spectrums of overlays. In Beer Law, the concentration (C) of a solvent is plotted against the absorbance (A) from a calibration curve, as a result. A linearity range of between 14and 39μg/mL was observed. The sample was tested by prorating the standard deviation and standard error of the approximate means with the sample size, demonstrating the accuracy and the precision of the methods used in the analysis. Based on the experimental findings, it can be easily inferred that for UV spectrometry estimation of simvastatin and piperine from pharmaceutical intravenous liquid formulation, the proposed method is very simple, fast, accurate, precise, economical and reproducible.

scholarly journals Forensic Engineering Analysis Of A Clean Room Failure

2002 ◽  
Vol 19 (2) ◽  
Author(s):  
Klas C. Haglid
Keyword(s):  
Working Hours ◽  
Chemical Exposure ◽  
Engineering Analysis ◽  
Clean Room ◽  
Chemical Release ◽  
Before And After ◽  
Forensic Engineering

Credible Sources State Clearly That After Mitigating A Chemical Release No Detectable Levels Of An Acid Can Be Found. Before And After This Point Of Testing The Site As Clear And Safe, Several Workers Were Injured With Serious Breathing And Circulatory Problems. These Workers Were Sent To The Hospital. Since Several Chemical Tests Showed There Was No Levels Of The Chemical In Question, It Is Claimed That These Injuries Happened Off Site Outside Of Working Hours And There Was No Chemical Exposure.

Solving SARA Compliance with Computerized Hazardous Materials Tracking

1992 ◽  
Vol 8 (01) ◽  
pp. 23-27
Author(s):  
Don Johnston ◽  
Dave Schoenleber
Keyword(s):  
Safety Data ◽  
Hazardous Materials ◽  
Materials Management ◽  
Material Management ◽  
Chemical Release ◽  
Reporting Requirements ◽  
Title Iii ◽  
Toxic Chemical Release ◽  
One Year ◽  
Computerized System

The advent of the Superfund Amendment and Reauthorization Act (SARA) Title III, or the Emergency Planning and Citizen Right-to-Know Act (EPCRA) has forced facilities to keep track of hazardous materials as never before. EPCRA contains five major reporting requirements, including planning notification, emergency release notification, Material Safety Data Sheet (MSDS) submission, chemical inventory reporting, and toxic chemical release reporting. The complexity and vastness of these requirements all but require a computerized system for hazardous material management. Peterson Builders, Inc., developed a computerized hazardous materials management system capable of meeting the requirements of EPCRA. After one year of operation, the system has proven successful. This paper discusses Peterson Builders' experience in implementing the system, system design, and future considerations for the system.

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