scholarly journals Physical, chemical, mechanical, and micromorphological characterization of dental needles

2021 ◽  
Vol 21 (2) ◽  
pp. 139
Author(s):  
Marco Antônio de Oliveira Monteiro ◽  
Alberto Nogueira da Gama Antunes ◽  
Roberta Tarkany Basting
Keyword(s):  
Physical Chemical

scholarly journals Editorial for Special Issue “Historical Mineral Pigments”

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 237
Author(s):  
Carolina Cardell ◽  
Jose Santiago Pozo-Antonio
Keyword(s):  
Chemical Characterization ◽  
Glass Enamel ◽  
Special Issue ◽  
High Quality ◽  
Physical Chemical ◽  
Scientific Disciplines ◽  
Natural And Synthetic

The physical–chemical characterization of natural and synthetic historical inorganic and mineral pigments, which may be found embedded in paintings (real or mock-ups), glass, enamel, ceramics, beads, tesserae, etc., as well as their alteration under different decay scenarios, is a demanding line of investigation. This field of research is now both well established and dynamic, as revealed by the numerous publications in high-quality journals of varied scientific disciplines. [...]

Physical-Chemical Characterization of Fruit Purees and Relationship with Sensory Analysis Carried out by Infants (12 to 24 mo)

2015 ◽  
Vol 80 (5) ◽  
pp. E1005-E1011 ◽  
Author(s):  
A.M. Inarejos-García ◽  
V. Mancebo-Campos ◽  
P. Cañizares ◽  
J. Llanos
Keyword(s):  
Sensory Analysis ◽  
Chemical Characterization ◽  
Physical Chemical

Physical, Chemical and Pharmacological Characterization of a New Oleogel-Forming Triterpene Extract from the Outer Bark of Birch (Betulae Cortex)

Planta Medica ◽  
2006 ◽  
Vol 72 (15) ◽  
pp. 1389-1395 ◽  
Author(s):  
Melanie Laszczyk ◽  
Sebastian Jäger ◽  
Birgit Simon-Haarhaus ◽  
Armin Scheffler ◽  
Christoph Schempp
Keyword(s):  
Pharmacological Characterization ◽  
Outer Bark ◽  
Physical Chemical

Physical, Chemical, and Serological Characterization of Avian Rotaviruses

1988 ◽  
Vol 32 (2) ◽  
pp. 195 ◽  
Author(s):  
S. Y. Kang ◽  
K. V. Nagaraja ◽  
J. A. Newman
Keyword(s):  
Physical Chemical ◽  
Serological Characterization

scholarly journals Analytical and Chemometric Characterization of Fino and Amontillado Sherries during Aging in Criaderas y Solera System

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 365
Author(s):  
Manuel J. Valcárcel-Muñoz ◽  
María Guerrero-Chanivet ◽  
María del Carmen Rodríguez-Dodero ◽  
María de Valme García-Moreno ◽  
Dominico A. Guillén-Sánchez
Keyword(s):  
Aging Process ◽  
Hierarchical Cluster ◽  
Biological Aging ◽  
Microbiological Activity ◽  
Dry Extract ◽  
Oxidative Aging ◽  
Physical Chemical ◽  
Sherry Wine ◽  
Flor Yeasts

Fino and Amontillado are Sherry wines, produced in Marco de Jerez area (southern Spain), and aged in Criaderas y Solera system. Fino Sherry wine follows a biological aging process, under a veil of flor yeasts, while Amontillado Sherry wine shares the same biological aging firstly, followed by oxidative aging, which gives them special features. Organic acids, esters, higher alcohols, phenolic compounds and total dry extract of Sherries evolve during aging due to evaporation processes, physical-chemical reactions, wood contributions and microbiological activity. During aging, Sherry wines improve their organoleptic profile, as could be proved in the tasting sessions. Hierarchical Cluster Analysis and Factor Analysis with factor extraction using Principal Components of Sherry wines studied were carried out and natural groupings of the wines according to the type of aging and their age were observed. A strong correlation between the parameters analyzed and the aging of each wine has been seen in the Multiple Linear Regression studies, establishing two different models, one for each type of Sherry wine, that, with only four of all the variables studied estimated the wine age with more than 99% of confidence. This constitutes a useful tool to control the age of these Sherry wines in the winery.

scholarly journals Caracterização físico-química e microbiológica do esgoto da UEPB com proposta de tratamento para fins de reuso

2015 ◽  
Vol 10 (3) ◽  
pp. 54
Author(s):  
M. U. Sousa ◽  
L. M. R. Lima
Keyword(s):  
Biological Treatment ◽  
Ammonia Nitrogen ◽  
Preliminary Treatment ◽  
Microbiological Analysis ◽  
State University ◽  
Physical Chemical ◽  
Appropriate Treatment ◽  
Microbiological Characteristics ◽  
Receive Treatment

<p>Nos últimos anos, a preocupação com as questões ambientais vem sendo bastante discutidas, onde merece destaque, o descarte indevido do esgoto doméstico no meio ambiente, portanto o presente estudo objetivou realizar a caracterização físico-química e microbiológica do esgoto descartado no solo, no Centro de Ciências e Tecnologia da Universidade Estadual da Paraíba, campus de Campina Grande – PB. Para tanto foram desenvolvidas análises físico-químicas, tais como pH, Fósforo Total, DBO, DQO, Nitratos, Nitritos, Nitrogênio Amoniacal, Orto-Fosfatos e Alcalinidade, bem como análise microbiológica (coliformes). Observou-se que o efluente na unidade em questão não recebe tratamento para seu descarte, sendo identificadas características físico-químicas e microbiológicas de esgoto <em>in natura</em>. Faz-se necessário desta forma, investimentos em análises periódicas para assim realizar um tratamento adequado ao efluente visando-se reduzir os riscos ambientais e de saúde pública. Após os resultados das análises, foi proposto, além do tratamento preliminar, um tratamento biológico para o efluente, do tipo, lagoa facultativa primária seguida de duas lagoas de maturação, onde a eficiência do tratamento nos parâmetros analisados se enquadra aos padrões estabelecidos pelo CONAMA 430/2011, na qual o efluente pós - tratado poderia ser reutilizado para fins menos nobres, destinando a água potável para atividades que requerem uma qualidade melhor.</p><p><strong><em>Physicochemical and microbiological characterization of wasterwater of the UEPB with proposed of treatment for reuse purposes</em></strong></p><p><strong>Abstract</strong><strong>: </strong>In recent years, concern about environmental issues has been widely discussed, which deserves mention the improper disposal of domestic sewage into the environment, so this study aimed to perform the physicochemical and microbiological sewage discarded the soil, in the Science and Technology Center of the State University of Paraiba, campus of Campina Grande - PB. Therefore, we developed physical-chemical analysis such as pH, Total Phosphorus, BOD, COD, Nitrate, Nitrite, Ammonia Nitrogen, Orto-Phosphates and alkalinity, as well as microbiological analysis (coliforms). It was noted that the effluent in the unit in question does not receive treatment for their disposal, identified physical, chemical and microbiological characteristics of raw sewage. It is necessary therefore, investment in periodic reviews thus to carry out an appropriate treatment to effluent aiming to reduce environmental risks and public health. After the analysis results, it was proposed, in addition to preliminary treatment, a biological treatment for the effluent, type, primary facultative pond followed by two ponds maturation, in which the treatment efficiency in the analyzed parameters falls within the standards set by CONAMA 430/2011 in which the effluent post-treaty could be reused for less noble purposes, intended to clean water for activities that require a better quality<strong>.</strong></p>

scholarly journals The Synthesis and Toxicological Characterization of Neurotoxic Chemical Agents Simulants

2019 ◽  
Vol 70 (11) ◽  
pp. 3881-3888
Author(s):  
Mihai Silviu Tudosie ◽  
Cristina Anca Secara ◽  
Catalin Gabriel Smarandache ◽  
Simona Bicheru ◽  
Mihaela Muresan ◽  
...  
Keyword(s):  
Chemical Compounds ◽  
Laboratory Research ◽  
Toxic Compounds ◽  
Counter Measures ◽  
Toxicological Effects ◽  
Physical Chemical ◽  
Chemical Agents ◽  
Toxic Agents ◽  
International Regulations

Neurotoxic warfare chemical agents (CWA/NA) induce major toxicological effects to the affected personnel. Their increased toxicity justifies the necessity of developing analytical methods for diagnosis and specific medical counter measures. CWA/NA are extremely toxic agents which are subject to international regulations (The Geneva Protocol regarding the prohibition of chemical weapons). Taking into account the ban on human experimenting due to high toxicity, simulators of neurotoxic chemical agents are being used in laboratories. These are analogue chemical compounds which possess the same relevant physical, chemical and pharmacodynamical properties of the corresponding agents, but with lower intrinsical toxicity. The synthesis and toxicological characterization of these simulators of neurotoxic chemical agents allow the laboratory research of these extremely toxic compounds and the unfolding of risk-free antidote studies. This paper proposes the synthesis and toxicological testing of chemical compounds which simulate sarin (4-nitrophenyl isopropyl methylphosphonate - NIMP) and VX (4-nitrophenyl ethyl methylphosphonate - NEMP).

Physical–chemical characterization of binary systems of metformin hydrochloride with triacetyl-β-cyclodextrin

2007 ◽  
Vol 45 (3) ◽  
pp. 480-486 ◽  
Author(s):  
Giovanna Corti ◽  
Gaetano Capasso ◽  
Francesca Maestrelli ◽  
Marzia Cirri ◽  
Paola Mura
Keyword(s):  
Binary Systems ◽  
Chemical Characterization ◽  
Metformin Hydrochloride ◽  
Physical Chemical
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