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Detection of carcinogens

Xem 1-20 trên 84 kết quả Detection of carcinogens
  • One of the causes of colon and gastric cancer is the dysregulation of carcinogenic genes, tumor inhibitors, and micro-RNA. The purpose of this study is to apply rs10811661 polymorphism in CDKN2A /B gene as an effective biomarker of colon cancer and early detection of gastric cancer.

    pdf9p visharma 20-10-2023 3 2   Download

  • Polycyclic Aromatic Hydrocarbons (PAHs) have been detected in rubber and plastic components of a number of consumer products such as toys, tools for domestic use, sports equipment, and footwear, with carbon black and extender oils having been identified as principal sources.

    pdf10p viginny 23-12-2022 8 3   Download

  • Morpholine is an emulsifier that is normally used as a protective wax coating on the surfaces of fruit and vegetable. In order to keep fruits fresh, extend their shelf-life, against insect and fungal contamination for a long time, morpholine has been widely applied despite of the reported carcinogenic potential in previous studies and export prohibition in many countries.

    pdf7p viedison 13-04-2022 9 2   Download

  • Nitric oxide is one of the most important biochemical parameters in biological processes; it is also known as carcinogenic. There is need for the design of stable and durable solid phase nitric oxide sensors. In this study, we immobilized the nitric oxide sensitive molecules pyrene, tris(2,2’-bipyrdyl)dichlororuthenium(II) hexahydrate (Ru(bipy) 2+ 3 ), and magnesium phthalocyanine (Mg-Pc) for the first time in polymeric or glassy matrices. We applied silver nanoparticles and ionic liquids in the fabrication process of polymeric electrospun fibers and thin films.

    pdf16p tudichquannguyet 29-11-2021 5 1   Download

  • Conventional cystoscopy can detect advanced stages of bladder cancer; however, it has limitations to detect bladder cancer at the early stages. Fluorocoxib A, a rhodamine-conjugated analog of indomethacin, is a novel fluorescent imaging agent that selectively targets cyclooxygenase-2 (COX-2)-expressing cancers.

    pdf13p vikuala271 13-06-2020 8 0   Download

  • Polycyclic aromatic hydrocarbons (PAHs) are chemical compounds that contain aromatic rings and do not contain heteroaryl or substituted groups. PAHs are found in petroleum, coal, and plastics; Moreover, PAHs are also found in foods, especially in cooked or grilled meats. These compounds are pollutants and identified as carcinogenic, mutagenic and teratogenic in humans. The goal of this paper was to develop a process to analyze the content of 16 common PAHs in grilled pork by mass spectrometry (GC-MS) using standard internal substances.

    pdf10p camtucau99 20-11-2019 24 0   Download

  • 3-Methylcholanthrene (MCA) is a polycyclic aromatic hydrocarbon and potent carcinogenic agent that is often used in experimental cancer studies. Butylated hydroxytoluene (BHT) has been widely used for many years as an antioxidant to preserve and stabilize the freshness, nutritional value, flavor, and color of foods. The aim of the present study was to investigate the role of the application of MCA and BHT in the development of lung cancer, and to detect any mutation in the Ki-ras gene exon 2.

    pdf6p vitamix 15-02-2019 17 1   Download

  • Commercially useful lipases are usually obtained from microorganisms that produce a wide variety of extracellular lipases. Many lipases are active in organic solvents where they catalyze a number of useful reactions including esterification (Chowdary et al., 2001; Hamsaveni et al., 2001; Kiran et al., 2001a; Kiyota et al., 2001; Krishna and Karanth, 2001; Krishna et al., 2001; Rao and Divakar, 2001), transesterification, regioselective acylation of glycols and menthols, and synthesis of peptides (Ducret et al., 1998; Zhang et al.

    pdf275p loixinloi 08-05-2013 41 5   Download

  • So far, hybrid-testing research has centered on dry-mill production, the lower investment technique of choice for the new cooperatively owned plants. The seed companies are targeting their incentive programs on dry mills. Monsanto’s program, “Fuel Your Profits,” provides the participating ethanol plant with high-tech equipment that profiles the genetics of incoming corn and is calibrated to maximize ethanol yield (Rutherford). As an incentive, Monsanto gives rebates on E85 vehicles (those designed to run on 85%-ethanol fuel) and fueling stations.

    pdf0p loixinloi 08-05-2013 59 4   Download

  • An IELTS candidate who achieves a score of 7.0 is described as being a ‘good user’ of English, someone who ‘[h]as operational command of the language, though with occasional inaccuracies, inappropriacies and misunderstandings in some situations’ (International English Language Testing System, 2009, p 3). As previously noted, since this research was conducted, DIAC has changed the points system for the Skilled Independent Residence Visa subclass 885. To gain maximum points for English language proficiency, candidates now need an Overall score of 8.0, with 8.

    pdf0p dambaotaikhoan 04-05-2013 80 11   Download

  • Consider the implications of those final sentences: students who take courses on media, who learn about the human rights to free speech and free press, and who actively participate in student media organizations are more likely than their peers to believe that people who hold unpopular opinions have a right to express them –and that others have a right to hear them.

    pdf47p thamgiacongdong 02-05-2013 58 4   Download

  • This is not to say that the US market has stalled: ReliOn, IdaTech and Altergy all found an early market there and, while expanding their global reach, continue to supply systems for domestic customers who reap the benefi ts of reliable power. Altergy in particular has recently announced some very large US orders, including a total of 22 MW of its 10 kW and 15 kW Freedom Power fuel cell systems for mobile phone company MetroPCS for which deployments are underway. According to Altergy, MetroPCS tested batteries, generators and fuel cells and found fuel cells to be more convenient, more.

    pdf209p thamgiacongdong 02-05-2013 51 6   Download

  • This approach has several advantages. It keeps the board in its all-important policy- setting role, and the executive in the policy-realization role. It keeps the board out of the micromanaging details, and frees the executive to focus on results delivery. Inother words, the focus is on making the organization succeed, per the board’s direction. The approach also concentrates on measurable outcomes, which lessens the impact of sub- jective personal opinion, and potentially reduces conflict over strongly held positions.

    pdf46p thamgiacongdong 02-05-2013 25 3   Download

  • The first Academy Awards were handed out on May 16, 1929, not long after the advent of “talkies.” By 1930, enthusiasm for the ceremonies was so great that a Los Angeles radio station did a live, one-hour broadcast, and the Awards have enjoyed broadcast coverage ever since.The number and types of awards have grown and changed over the years to keep up with the development of the motion picture industry.

    pdf23p seketnoi 29-04-2013 46 7   Download

  • Studies of predation by seals on fish in Atlantic Canada have focussed on harp seals and grey seals. Predation by harbour and hooded seals has also been estimated. Harp seals accounted for the largest amount of consumption, followed by hooded and grey seals. However, recent data on diets of hooded seals suggest that they may also be important predators. Comprehensive estimates indicated that in 1996, harp seals consumed some 3 million tonnes of food in the Canadian Atlantic, whereas grey seals consumed some 314,000 tonnes.

    pdf63p seketnoi 26-04-2013 35 2   Download

  • Chickens in extensive and semi-intensive poultry production systems account for more than 75% of all poultry in the South. Owned by smallholders in rural areas, these birds provide food security and fam- ily income and play an important role in socio-cultural events. Poultry is an important farm species in almost all countries. It is an important source of animal protein, and can be raised in situations with limited feed and housing resources. Chickens are ‘waste- converters’: they ‘convert’ a scavenged feed resource base into animal protein.

    pdf16p loginnhanh 22-04-2013 56 2   Download

  • Expenditure on R&D is low by OECD standards. Business R&D (BERD) is particularly low but is growing faster than the OECD mean. However, as a proportion of total industry value added, New Zealand small fi rms undertake more BERD than small fi rms in most other OECD countries. International patenting rates are also well below the OECD mean and are not growing. New Zealand has a relatively large proportion of R&D personnel in its workforce but they are concentrated in the higher education sector and government.

    pdf19p trinhcaidat 19-04-2013 51 3   Download

  • A conclusion which can be drawn out of above figures is that these liquidation numbers closely follow the ups and downs of economic growth figures in real terms. This is not at all surprising as businesses depend on turnover to create cash flows. Liquidations are a lagging indicator of economic growth; they follow the growth pattern rather than leading it. What above table also makes clear is how bank risks are closely correlated with economic growth patterns. When companies go bankrupt, it usually also means substantial write-offs on loans to these companies: an economic loss.

    pdf16p hoangphiyeah1tv 18-04-2013 51 3   Download

  • The Oracle Database distribution media includes various SQL files that let you experiment with the system, learn SQL, or create additional tables, views, or synonyms. Oracle Database includes sample schemas that help you to become familiar with Oracle Database functionality. All Oracle Database documentation and training materials are being converted to the Sample Schemas environment as those materials are updated. The Sample Schemas can be installed automatically by the Database Configuration Assistant, or you can install them manually.

    pdf1000p nhacsihuytuan 13-04-2013 76 8   Download

  • From an educational perspective, this kind of phenomenon represents a tantalizing opportunity for deep, transformative learning. To this point, however, relatively little attention has been given to the role of automatic, non-conscious processes in situations where significant learning is occur- ring. Typically, the non-conscious perceptions of interest are reflexive biases and prejudices.

    pdf22p giamdocamnhac 06-04-2013 52 6   Download

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