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PubMed Journals Articles About "Global Ground Calcium Carbonate Market Research Report 20122024" RSS

11:01 EST 9th December 2019 | BioPortfolio

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Showing "Global Ground Calcium Carbonate Market Research Report 20122024" PubMed Articles 1–25 of 41,000+

Manufacturing bio-bricks using microbial induced calcium carbonate precipitation and human urine.

In this study, we investigated the use of a natural process called microbial induced calcium carbonate precipitation (MICP) to 'grow' bio-bricks using the urea present in human urine. We first collected fresh urine and stabilized the urine with calcium hydroxide. This prevented any significant loss of urea which allowed it to then be used for the MICP process. We used Sporosarcina pasteurii bacteria to help drive the MICP process. The bacteria degraded the urea present in the urine to form carbonate ions wh...


Rapid Resolution of Symptomatic Hypercalcaemia.

Rapid Resolution of Symptomatic Hypercalcaemia Milk-alkali syndrome consists of the triad of hypercalcaemia, metabolic alkalosis, and renal insufficiency associated with the ingestion of calcium and absorbable alkali. Older patients, those at risk for volume depletion and those on medications that reduce glomerular filtration rate are at increased risk for the development of this syndrome. Most affected patients are postmenopausal women with chronic kidney disease who take an excessive amount of calcium ca...

Non-stoichiometric hydrated magnesium-doped calcium carbonate precipitation in ethanol.

The effect of Mg2+ on the precipitation pathway of CaCO3 in absolute ethanol has been studied to investigate the role of ion solvation in the crystallization process. Our data reveal that high concentrations of Mg2+ promote the precipitation of an amorphous transient phase together with non-stoichometric hydrated phases of calcium carbonate.


Maltobionic acid enhances intestinal absorption of calcium and magnesium in rats.

In Experiment 1, the effects of calcium maltobionate (MBCa) on calcium and magnesium absorption were examined using male rats. Four diets were designed in which 25%, 50%, and 100% of calcium carbonate (CaCO, Control) were substituted with MBCa and were designated as MBCa-25, MBCa-50, and MBCa-100, respectively. The cecal concentration of short-chain fatty acids was significantly higher in groups MBCa-50 and MBCa-100; however, pH of cecal contents did not significantly differ among the groups. Retention rate...

Solution equilibria of uranyl minerals: Role of the common groundwater ions calcium and carbonate.

Understanding the factors that govern aqueous solubility of uranyl minerals is important for predicting uranium mobility in groundwater and for designing effective remediation strategies. The uranyl-containing minerals metaschoepite [UO∙(2HO)] and uranophane [Ca(UO)(SiOOH)·5HO] were synthesized and evaluated in batch solubility experiments conducted in the presence of common groundwater ions: calcium, bicarbonate/carbonate, and dissolved silica. Solid-phase characterization revealed the expected structur...

A Middle-Ground Proposal for Making Health Care Premiums More Affordable.

Passage of any health care reform that addresses the rising cost of health care in the United States will be a difficult political challenge unless a middle-ground compromise between government control of health care insurance and free market approaches can be found. On the basis of the competitive market for Medicare supplemental insurance, a Medicare Adherence Policy insurance option is proposed that would leverage Medicare's authority to set prices to create a practical middle-ground reform that can stri...

Effect of anions species on copper removal from wastewater by using mechanically activated calcium carbonate.

In this work, the wastewater containing sulfate ions, nitrate ions or chloride ions was used to investigate the performance of anions in copper removal by mechanically activated calcium carbonate. The copper removal from wastewater containing sulfate anion achieved almost 99% with the CaCO/Cu molar ratio of 1:1. However, the copper removal from wastewater containing nitrate and chloride anions are lower than 20% and 35%, respectively. The precipitations from wastewater containing different anions were analy...

Enhanced alginate-based microsphere with the pore-forming agent for efficient removal of Cu(Ⅱ).

In order to increase the adsorption properties of sodium alginate gel beads, a series of SA@PF-beads (sodium alginate-based beads with different amount of pore-forming agent) were prepared with calcium carbonate as the pore forming agent. The experimental results showed that the adsorption capacity of Cu(Ⅱ) increased by at least two times (from 13.69 mg/g to 33.88 mg/g, treated with SA@PF-0 and SA@PF-2.0, respectively) with proper amount of calcium carbonate added, which is economical and effective. I...

Bioaccessibility study of calcium and vitamin D co-microencapsulated in water-in-oil-in-water double emulsions.

Calcium and vitamin D were co-encapsulated in three types of water-in-oil-in-water (W/O/W) double emulsions stabilized with biopolymers: gum arabic, sodium alginate (Alg) and chitosan (Ch). Three calcium salts with different solubility were used: calcium carbonate (CaC), tricalcium phosphate (CaP) and calcium gluconate (CaG). In order to study the bioavailability of calcium and vitamin D, the W/O/W double emulsions were subjected to digestion in simulated conditions using in vitro gastrointestinal models. T...

The ship recycling market in Brazil - The Amazon potential.

Despite the considerable Brazilian coastline and vast water transportation cargo and passenger capacity, Brazil currently does not have a satisfactory amount of research aimed at ship recycling markets, especially in the Amazon region. This study aims to characterize this market in Brazil through research and data filtering related to national vessel fleets. Fleet data were obtained from the National Agency of Waterway Transportation (ANTAQ). Quantitative spatialization of the fleet was based on geostatisti...

Nutraceuticals' Novel Formulations: The Good, the Bad, the Unknown and Patents Involved.

Traditional nutraceuticals and cosmeceuticals hold pragmatic nature with respect to their definitions, claims, purposes and marketing strategies. Their definitions are not well established worldwide. They also have different regulatory definitions and registration regulatory processes in different parts of the world. Global prevalence of nutraceuticals and cosmeceuticals is noticeably high with large market share with minimal regulation compared to traditional drugs. The global market is flooded with nutrac...

The analysis of medical market in Russia in 2016-2018: main economic indices and research results.

The article presents the main indicators of development of Russian medical market in 2016-2018. The basic data concerning main activities in market of medical services and goods, key figures on patterns and trends of market of medical sphere, pricing policy, organizational forms of medical institutions is presented. The conclusions on the research oт supply and demand in medical market are made. The conclusions related to forecasting and planning of development of Russian medical market in Russia, its pers...

Novel Calcium Carbonate-titania nanocomposites for enhanced sun light photo catalytic desulfurization process.

Preparation of active photocatalytic nanostructures to harvest the abundant sunlight energy is a recent worldwide direction for clean energy production and environmental management. Following this target, different calcium carbonate-titania nanostructures were prepared by three different pathways using available raw materials such as limestone as calcium precursor. After characterization of the prepared materials with X-ray diffraction (XRD), X-ray fluorescence (XRF) patterns, Fourier transmission infrared ...

Facultative and anaerobic consortia of haloalkaliphilic ureolytic microorganisms capable of precipitating calcium carbonate.

Development of biomineralization technologies has largely focused on microbially induced carbonate precipitation (MICP) via Sporosarcina pasteurii ureolysis; however, as an obligate aerobe, the general utility of this organism is limited. Here, facultative and anaerobic haloalkaliphiles capable of ureolysis were enriched, identified and then compared to S. pasteurii regarding biomineralization activities.

Ecological change in dynamic environments: Accounting for temporal environmental variability in studies of ocean change biology.

The environmental conditions in the ocean have long been considered relatively more stable through time compared to the conditions on land. Advances in sensing technologies, however, are increasingly revealing substantial fluctuations in abiotic factors over ecologically and evolutionarily relevant timescales in the ocean, leading to a growing recognition of the dynamism of the marine environment as well as new questions about how this dynamism may influence species' vulnerability to global environmental ch...

Inactivation of human norovirus and its surrogate by the disinfectant consisting of calcium hydrogen carbonate mesoscopic crystals.

Human norovirus is one of the major causes of food-borne gastroenteritis, and it can be easily transmitted from infected person, virus-contaminated foods, and environmental surfaces. Effective disinfection method is needed to stop the transmission of human norovirus. CAC-717 is a new disinfectant consisting of calcium hydrogen carbonate mesoscopic crystals. We aimed to evaluate the efficacy of CAC-717 against human norovirus. This study used human norovirus derived from fecal specimens and cultured murine n...

Calcium permeation property and firmness change of cherry tomatoes under ultrasound combined with calcium lactate treatment.

This study aimed to investigate the effect of ultrasound combined with calcium lactate (2%, w/v) treatment (U + Ca) on calcium permeation and firmness of cherry tomatoes. Calcium distribution and fruit pectin nanostructure were also analysed by transmission electron microscope (TEM) and atomic force microscopy (AFM), respectively. The firmness (31.45 N) was maintained when ultrasound energy density was 20 W/L for 15 min at 15 °C. The Ca content increased in U + Ca treated fruit. Meanwhile, ...

Near-ground effect of height on pollen exposure.

The effect of height on pollen concentration is not well documented and little is known about the near-ground vertical profile of airborne pollen. This is important as most measuring stations are on roofs, but patient exposure is at ground level. Our study used a big data approach to estimate the near-ground vertical profile of pollen concentrations based on a global study of paired stations located at different heights. We analyzed paired sampling stations located at different heights between 1.5 and 50 ...

Corrected calcium versus ionized calcium measurements for identifying hypercalcemia in patients with multiple myeloma.

Dysregulated bone turnover is an important clinical manifestation of multiple myeloma (MM), and 30% of patients present with hypercalcemia. Serum calcium levels are routinely monitored using total calcium measurements corrected for albumin. However, myeloma-related paraproteins may bind calcium, confounding these measurements.

Selenium-Doped Calcium Carbonate Nanoparticles Loaded with Cisplatin Enhance Efficiency and Reduce Side Effects.

Osteosarcoma is the bone tumor that most commonly affects children and teenagers with low survival rate because of metastatic relapse or recurrence. Cisplatin is a first-line chemotherapy for osteosarcoma. However, severe side effects limit its use in clinic. Selenium (Se) is an anticarcinogen that can protect normal tissues from side effects of chemotherapy. In this study, nanoparticles were used to co-deliver cisplatin and Se in a synergistic combination. Se-doped and lipid-coated calcium carbonate nanopa...

Calcium state estimation by total calcium: the evidence to end the never-ending story.

Background Total blood calcium (TCa) is routinely used to diagnose and manage mineral and bone metabolism disorders. Numerous laboratories adjust TCa by albumin, though literature suggests there are some limits to this approach. Here we report a large retrospective study on agreement rate between ionized calcium (iCa) measurement and TCa or albumin-adjusted calcium measurements. Methods We retrospectively selected 5055 samples with simultaneous measurements of iCa, TCa, albumin and pH. We subgrouped our pat...

Systematic analysis of global health research funding in Canada, 2000-2016.

Considering recent shifts in global funding landscapes, this study analyzes Canada's long-term global health research funding trends in the hope of informing a new Canadian global health research strategy. Examining past investments can help prioritize limited future resources to either build on Canada's existing strengths or fill gaps where needed, while simultaneously informing the investments of research funders in other countries.

Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil.

The present work aims to observe the spatial distribution of metals associated with carbon forms (fraction < 2 mm) in surface sediments of two macrotidal estuaries, São Marcos Bay and Anil River Estuary, which are located within the transition region between the Amazonian and the semi-arid northeast regions. Grain size, metal content (Al, Fe, Mn, Cu, Pb, Cr, Zn, and Ni), organic matter, and calcium carbonate content were determined. Grain size analyses showed the predominance of the sand-sized fraction < 2...

How corals made rocks through the ages.

Hard, or stony, corals make rocks that can, on geological time scales, lead to the formation of massive reefs in shallow tropical and subtropical seas. In both historical and contemporary oceans, reef building corals retain information about the marine environment in their skeletons, which is an organic-inorganic composite material. The elemental and isotopic composition of their skeletons is frequently used to reconstruct the environmental history of Earth's oceans over time, including temperature, pH and ...

pH-Induced Binding of the Axial Ligand in an Engineered Cu Site Favors the π State.

Cu centers perform efficient long-range electron transfer. The electronic structure of native Cu sites can be described by a double-potential well with a dominant σ* ground state in fast equilibrium with a less populated π ground state. Here, we report a Cu mutant in which a lysine was introduced in the axial position. This results in a highly unstable protein with a pH-dependent population of the two ground states. Deep analysis of the high-pH form of this variant shows the stabilization of the π ground...


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