Results 61 to 70 of about 256,556 (266)

Quantitative analysis of total alkaloids by titration and Hyoscyamine by HPLC in indigenous Datur species inNorth of Iran [PDF]

Journal of Mazandaran University of Medical Sciences, 2005
Background and purpose :.There are ten identified species of Datura in the world. Datura stramonium L. (Torn apple or Jimsonweed) and D.innoxia Mill. (Hindudatura) are endemic species of Datura in Iran, especially in the North (Caspian Sea region).
M. Azadbakht, S.M. Hoseinzadeh
doaj  

Electrostatically‐Stabilized PEG‐Free Lipid Nanoparticles for Systemic Nucleic Acid Delivery

Advanced Functional Materials, EarlyView.
This work describes non‐PEGylated layered lipid nanoparticles (nonPEG LLNPs), a gene delivery platform that improves upon standard PEGylated LNPs via electrostatic adsorption of charged polymers. nonPEG LLNPs maintain colloidal stability under biological stresses, enhance circulation time, and mitigate accelerated blood clearance and hepatic ...
Namita Nabar, Deeksha Kumaresh, Eduardo Nombera Bueno, Mae Pryor, Paula T. Hammond   +4 more
wiley   +1 more source

The sulphur and chlorine contents of grass and maize silage

Acta Agriculturae Slovenica, 2001
In seven defined samples of grass and in six samples of maize silage the contents of sulphur and chlorine were determined by two analytical procedures: both elements with X-ray fluorescence spectrometry (XRF), sulphur separately with inductively coupled ...
Marija RAJČEVIČ, Alojz VIDIC, Pavel KUBA, Marijan NEČEMER, Peter KUMP   +4 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Acid Site Design for Low Hydration Proton Exchange Membranes

Advanced Functional Materials, EarlyView.
α‐CF2 substitution adjacent to sulfonic acid increases acid strength and enables efficient proton transport under low hydration conditions. This molecular design reduces the dependence of hydrocarbon proton exchange membranes on excessive water uptake, addressing a key limitation of conventional hydrocarbon PEMs while maintaining favorable conductivity
Ajay Kumar, Lorena Alzate‐Vargas, Mayra Rodriguez‐Pena, Douglas I. Kushner, Marina Pacheco, Panagiotis Bexis, Ahmet Kusoglu, Siddharth Komini Babu, Edward F. Holby, Jacob S. Spendelow, Eun Joo S. Park   +10 more
wiley   +1 more source

Profile of sleep-related breathing disorders in chronic obstructive pulmonary disease-obstructive sleep apnea overlap syndrome

Journal of Advanced Lung Health
Introduction: Overlap syndrome (OS) is defined by the combined occurrence of obstructive sleep apnea (OSA) and chronic obstructive pulmonary disease (COPD).
Pranav Ish, Sumita Agrawal, Vidushi Rathi, Nitesh Gupta, Rohit Kumar, Mansi Gupta, Anshul Mittal, Debasis Behera, J C Suri   +8 more
doaj   +1 more source

Measuring the amount of vitamin C in citrus fruits by atwo step oxidation- [PDF]

Journal of Mazandaran University of Medical Sciences, 2005
Background and purpose:Epidemiological evidence has suggested that consumption of fruits reduces the risk of chronic diseases such as cancer and cardiovascular disease.
M.A. Ebrahimzadeh, S.J. Hosseinimehr, M. Mahmodi, M.R. Gayekhloo, M. Hoseiani   +4 more
doaj  

Protein sequestration generates a flexible ultrasensitive response in a genetic network

Molecular Systems Biology, 2009
Ultrasensitive responses are crucial for cellular regulation. Protein sequestration, where an active protein is bound in an inactive complex by an inhibitor, can potentially generate ultrasensitivity. Here, in a synthetic genetic circuit in budding yeast,
Nicolas E Buchler, Frederick R Cross
doaj   +1 more source

Direct Analyses of Beer Macromolecular Complexes by Means of a New Differential Nephelometric Titration Method.

Kvasný průmysl, 2002
A new method of analyses of beer and intermediates macromolecular complexes - Differential Nephelometric Titration (DNT) was developed. The method was analytically evaluated in various protein and PVP model solutions and their mixtures by titration with ...
P. SLADKÝ, H. CÍSAŘOVÁ, M. DIENSTBIER, P. GABRIEL   +3 more
doaj   +1 more source

The titration of toxoplasma-antibody [PDF]

Journal of Hygiene, 1962
In toxoplasma-antibody titrations with the dye-test the tolerances of the parasite Toxoplasma gondii are approximately normally distributed on the logarithm of the serum dilution. Log LD 50 (the logarithm of the titre), the variance of the tolerance distribution and the variances of the sample distributions were estimated by probit analysis of data ...
openaire   +3 more sources