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Topic: Scavenging


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In the News (Mon 22 Apr 19)

  
  Scavenger - Wikipedia, the free encyclopedia
Scavengers are useful to the ecosystem by feeding on and therefore breaking down dead animal and plant remains.
The remains that are left behind by the scavengers are then used even further by decomposers.
Scavenger is also what the British refer to one who is employed to remove dirt and refuse from the streets.
en.wikipedia.org /wiki/Scavenger   (276 words)

  
 [No title]   (Site not responding. Last check: 2007-09-19)
The oxygen scavenging component is exposed to a substantially uniform dose of actinic radiation, resulting in consistent initiation of oxygen scavenging across the internal surface of the container.
These oxygen scavengers include at least one reducible organic compound which is reduced under predetermined conditions, the reduced form of the compound being oxidizable by molecular oxygen, wherein the reduction and/or subsequent oxidation of the organic compound occurs independent of the presence of a transition metal catalyst.
By exposing the internal oxygen scavenging component of containers to radiation from an internally positioned source of actinic radiation, the oxygen scavenging component is exposed to a substantially uniform dose of actinic radiation and is therefore triggered or initiated substantially consistently.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=98/05571.980723&ELEMENT_SET=DECL   (3977 words)

  
 Fluorous Technologies - Scavenging
The soluble fluorous scavenger is then introduced and scavenges the byproducts to form fluorous-tagged compounds.
Based on the reaction conditions and the nature of the fluorous scavenger employed, there are three major variations to the standard light fluorous scavenging paradigm depicted in Figure 2.
Using "heavy fluorous" scavengers (those containing >60% fluorine by molecular weight) and liquid/liquid separation and extraction methods three processes are described for the scavenging of particular classes of compounds.
fluorous.com /scavenging.html   (1009 words)

  
 myITforum.com : DNS Aging/Scavenging Simplified
However, the age of a record is not considered until scavenging is turned on.
Once scavenging is turned on, DNS does not calculate how old the record was prior to scavenging being enabled.
Also, if it attempts to run the scavenging process during a time when the DNS server is highly utilized, it will miss the scheduled interval.
www.myitforum.com /articles/16/view.asp?id=6287   (1478 words)

  
 Anesthesia Gas Machine- Scavenging and WAGs
Scavenger and operating room ventilation efficiency are the two most important factors in reduction of waste anesthetic gases (WAGs).
Scavenging may be active (suction applied) or passive (waste gases proceed passively down corrugated tubing through the exhaust grill of the OR).
Another important distinction is that scavenger interfaces may be open (to the atmosphere) or closed (gases within the interface may communicate with the atmosphere only through valves; the more familiar type).
www.udmercy.edu /crna/agm/10.htm   (737 words)

  
 Combichem scavenging
A benefit of such scavenging is that it permits chemical reactions to be driven further in the desired product direction by enabling the addition of a large excess of one of the reagents.
Because multiple scavenger resins can be used in concert (even incompatible functional groups can be used because of their comparative isolation within the beads), a wide variety of compounds can be scrubbed from the solutions.
Although commercial scavenging resins tend to be available only in bead form, the use of scavenging filter disks (in a process called solid-supported scavenging) is a recent physical variation of the scavenger process.
pubs.acs.org /subscribe/journals/mdd/v05/i06/html/06ttb.html   (1399 words)

  
 Wood Scavenging in the Suburbs
Scavenging for fallen branches is not illegal so long as it goes no further than that.
The easiest solution for an overworked family that wants to trim their heating bill is to scavenge, since the preserve is so close.
The sight of a neighbor (who isn’t poor) already wood scavenging before any real fuel crisis has arrived is not a promising indication of what is to come.
www.fromthewilderness.com /free/ww3/010306_wood_scaveging.shtml   (1163 words)

  
 Scavenging Effects of FRC001 China No.1 Tian Xian Liquid on Oxygen Free Radicals
It is possible that scavengers of active oxygen radicals might be beneficial for prevention of such diseases and for human health.
The scavenging effect of FRC001 on oxygen free radicals generated from the reaction of xanthine/xanthine oxidase system was shown in Figure 2.
Its scavenging effect on peroxynitrite is smaller than that of Vitamin C (C50= 0.00003 mg/ml) but stronger than that of vitamin E. FRC001 is a drug designed on the basis of the theory of scavenging free radicals.
www.tianxian.com /science/oxygen_free_radicals.asp   (2406 words)

  
 Aging and Scavenging Parameters
This flag indicates whether aging and scavenging is enabled for the records in the zone.
Because of the addition of the timestamp, a standard primary zone file for which scavenging is enabled is has a slightly different file format than a standard DNS zone.
The record can be scavenged if the current time is greater than the value of the timestamp plus the value of the no-refresh interval plus the value of the refresh interval.
www.microsoft.com /resources/documentation/Windows/2000/server/reskit/en-us/cnet/cncf_imp_tahj.asp?frame=true   (939 words)

  
 [No title]   (Site not responding. Last check: 2007-09-19)
In addition, incorporating the oxygen scavenger into the package structure provides a means of intercepting and scavenging oxygen as it permeates the walls of the package (herein referred to as an"active oxygen barrier"), thereby maintaining the lowest possible oxygen level in the package.
The oxygen scavengers will be characterized in that they will be able to react with oxygen in their near vicinity, enabling the removal of oxygen from a closed system.
While the actual form of the oxygen scavengers may vary, a characteristic that they each share is they include cyclic alkene groups or functionalities, which are able to react with oxygen to provide the desired oxygen scavenging properties.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/48963.990930&ELEMENT_SET=DECL   (7560 words)

  
 Planning commission proposal to eradicate scavenging
The programme of liberation and rehabilitation of scavengers has three necessary components, which between them should be sufficient to achieve the objective.
Proper identification of manual scavengers is necessary both for purposes of their liberation and rehabilitation, and for knowing the magnitude of the problem and progress in its alleviation.
The practice of manual scavenging may not be common in rural areas where use of latrines itself is not common.
www.pucl.org /Topics/Dalit-tribal/2004/scavenging.htm   (2161 words)

  
 Reflections on the Origins of Scavenging and Hunting
I hypothesize that both scavenging and hunting coincided with the emergence of the genus Homo.
Certainly, the earliest meat scavengers had the intelligence to understand where the meat derived from—living animals.
Scavenging and hunting capacitated survival in ecologies without the ancestral plants of the African tropics.
www.jqjacobs.net /anthro/paleo/scavenging.html   (3426 words)

  
 Anesthetic Gases: Guidelines for Workplace Exposures
Encourage or promote the use of scavenging systems in all anesthetizing locations where inhaled agents are used, recognizing that a waste gas scavenging system is the most effective means of controlling waste anesthetic gases.
This includes appropriate scavenging equipment with a readily visible and accurate flow meter (or equivalent measuring device), a vacuum pump with the capacity for up to 45 L/min of air per workstation, and a variety of sizes of masks to ensure proper fit for individual patients.
The basic principles of scavenging used to capture excess anesthetic gases in hospital surgical suites are appropriate for application in veterinary anesthesia.
www.osha.gov /dts/osta/anestheticgases   (14444 words)

  
 Cryovac OS2000 Polymeric Oxygen Scavenging Systems - Sealed Air Article
Cryovac® Oxygen Scavenging Film is the result of over ten years of extensive research and development and was recently awarded the Flexible Packaging Association’s highest achievement award for having contributed most to the advancement of the industry.
After initial activation, the scavenging reaction continues with no further external stimulus until the scavenging capacity of the film is exceeded.
Iron based oxygen scavengers (films or sachets) generally are dependent on moisture to initiate and maintain the scavenging reaction.
www.sealedair.com /library/articles/article-os2000.html   (2180 words)

  
 Exotic hens under semi scavenging conditions in Bangladesh
It is concluded that management aspects which account for local variation in feed available for scavenging and supplementation and reduction in mortality are important factors to address to improve the technical efficiency of the model.
The birds were allowed to scavenge during the day in and around the homestead and in the neighborhood after the crop was harvested and they were kept in a shelter at night and during unfavorable weather conditions.
The prevailing scavenging condition is naturally expected not only to influence the performance of hens in the semi-scavenging system but also the amount of feed available to supplement.
www.cipav.org.co /lrrd/lrrd9/3/bang931.htm   (3268 words)

  
 Moon Miners' Manifesto: Gas Scavenging
Scavenging soil gasses (this does not include oxygen which is chemically combined in soil minerals, up to 45% by weight) must not be an afterthought, an accessory to be added later, a luxury to be built into future models.
Scavenging soil gasses will be an exercise in self-endowment and the settlement that does not practice it 'de rigueur' will not deserve to succeed.
A lunar community that practices such gas scavenging will have a friendlier more at-ease attitude to its adopted world than one which, not doing so, chooses by default to remain a stranger in a strange land.
www.asi.org /adb/06/09/03/02/023/gas.html   (1235 words)

  
 Reporting Scavenging | Environmental Services
Scavenging is the act of unauthorized persons going through recycling or refuse containers, whether the containers are located on City or private property.
Like illegal dumping, scavenging is a crime in San Diego, and it is taken very seriously by the City.
Every year, scavengers steal thousands of dollars in recyclables from the City's curbside program, which makes the program less cost efficient and ultimately costs taxpayers.
www.sandiego.gov /environmental-services/ep/illegal/scavenge.shtml   (177 words)

  
 Scavenging Receptor SR-BII antibody (ab114) datasheet   (Site not responding. Last check: 2007-09-19)
If Scavenging Receptor SR-BII antibody (ab114) does not perform as described on this datasheet, notify us within 90 days of delivery using this form, so that we can help you or offer you a replacement or a refund.
Scavenger receptor class B, type I on non-malignant and malignant human epithelial cells mediates cholesteryl ester-uptake from high density lipoproteins.
Scavenger receptor class B, type I (SR-BI) is the major route for the delivery of high density lipoprotein cholesterol to the steroidogenic pathway in cultured mouse adrenocortical cells.
www.abcam.com /?datasheet=114   (638 words)

  
 Understanding Aging and Scavenging features in Windows 2000 DNS > Prerequisites for Aging/Scavenging   (Site not responding. Last check: 2007-09-19)
When a Windows 2000 DNS server performs a scavenging operation, it can determine that RRs have aged to the point of becoming stale and remove them from zone data.
By default, the aging and scavenging mechanism is disabled at Windows 2000 DNS servers.
Scavenging and aging must be enabled both at the DNS server and on the zone.
www.phptr.com /articles/article.asp?p=21116   (888 words)

  
 Northwest Baby and Child Newspaper
Scavenger hunts provide opportunities for kids to exercise, cooperate, connect with their environment, focus on observation, and notice patterns in nature.
As a child, I remember playing for hours outside collecting red huckleberries for an emergency (there were always blizzards, floods, and storms to prepare for), poking my finger in the folds of foxglove, and herding bullheads into the shallows.
Sometimes a scavenger hunt is just the invitation they need to examine the real world around us.
www.nwbaby.com /archive/2006/april2006/l2.html   (553 words)

  
 The energy and protein needs of scavenging laying hens
The daily energy and protein requirements of a 1.2 kg scavenging hen, laying a 38 g egg at a rate of 20% production, are calculated.
A typical scavenging feed resource base of 250 kg/household per year will support 12.5 scavenging hens for energy and 13 hens for their protein needs.
The typical scavenging hen will weigh 1.2 kg, lay a 38 g egg at a rate of 20% production; she will travel each day 1.5km for 26 weeks of the year and 3 km for the remainder of the year.
www.cipav.org.co /lrrd/lrrd12/4/Farr124.htm   (966 words)

  
 The role of scavenging ducks, duckweed and fish in Integrated Farming   (Site not responding. Last check: 2007-09-19)
Ducks are also commonly allowed to scavenge in the backyards or gardens of households in small flocks, receiving household waste or rice to supplement what they obtain by scavenging.
Today, ducks are also raised in partial confinement, either for table eggs in coastal areas where shellfish gathered from the sea are good mineral and protein sources for ducks, or in areas where they are bred for meat during the dry season in an integrated fish-duck system.
During scavenging, the ducks consume weeds and stir and loosen mud around the rice roots with their beaks without harming the rice plants.
ces.iisc.ernet.in /hpg/envis/doc97html/envfoo118.html   (1524 words)

  
 Scavenging - Wikipedia, the free encyclopedia
Scavenging consists of pushing the exhausted gas-charge out of the cylinder, and drawing in a fresh draught of air ready for the next cycle.
modifying the back pressure) you can infact detract from the 'ideal' scavenging effects, and reduce fuel efficiency and power.
This page was last modified 15:50, 23 April 2006.
en.wikipedia.org /wiki/Scavenging   (91 words)

  
 [No title]
Aging and scavenging of stale resource records are features of DNS available when deploying your server with primary zones.
Automatic scavenging  specifies that aging and scavenging of stale records is to be performed automatically by the server for any eligible zones at a recurring interval specified as the scavenging period.
Manual scavenging  specifies that aging and scavenging of stale records is to be performed as a non-recurring operation for any eligible zones at the server.
technet2.microsoft.com /windowsserver/en/library/528AA0A4-E5B4-45DA-9769-1D00EF636BB31033.mspx   (1007 words)

  
 Crankcase Explosions, Scavenging & Economizer Fires   (Site not responding. Last check: 2007-09-19)
Scavenging air fires, on larger two stroke, slow speed engines, can occur where an excess of combustible, such a coke, builds up in the scavenging air manifold.
Indications of a scavenge fire can be an increase of manifold temperature.
All ships I sailed on had a steam line connected to the scavenge air receiver, So you could smother the fire, using steam, you were less likely to thermally stress anything, blasting water or CO2 in would lead to a lot of cracks.
www.dieselduck.ca /library/tech_notes/crankcase_exp.htm   (796 words)

  
 CPU scavenging: Facts and details from Encyclopedia Topic (via CobWeb/3.1 planetlab1.isi.jhu.edu)   (Site not responding. Last check: 2007-09-19)
Cycle-scavengers move jobs from machine to machine as necessary to allow the smooth running of the job and the network being scavenged.
Seti@home ("seti at home") is a distributed computing project for internet-connected home computers, hosted by the space sciences laboratory, at the university...
(but claims that it is safer to the machines from which the cycles are scavenged as Parabon's client software operates within a Java sandbox (security)[For more facts and a topic of this subject, click this link].
www.absoluteastronomy.com.cob-web.org:8888 /encyclopedia/c/cp/cpu_scavenging2.htm   (831 words)

  
 Centre to end manual scavenging- The Times of India   (Site not responding. Last check: 2007-09-19)
NEW DELHI: In yet another attempt to wean the poorest of poor Dalits away from the dehumanising occupation of manual scavenging, government has approved a mega Rs 1,575-crore project, which aims at providing them loans for alternative employment.
Scavenging is rampant even 12 years after a law came into force banning construction of dry latrines and employing anyone to carry night soil.
But misgivings exist over the number, seen as underplayed, and a fresh survey might be carried out to ascertain the actual number of scavengers and the number of dry latrines.
timesofindia.indiatimes.com /articleshow/1363188.cms   (178 words)

  
 Scavenging Outdoors - VeterinaryPartner.com - a VIN company!
Dogs are scavengers by nature, taking treats where they can find them.
So, whether your pup is just starting to notice things on the ground or you're dealing with a strong scavenging habit, you're going to want to start now to retrain the dog for safer walking.
If you choose to take your dog to off-leash dog parks or other places where the dog is loose at a distance from you, be aware of the risks from scavenging.
www.veterinarypartner.com /Content.plx?P=A&A=1616   (1925 words)

  
 Hydrogen Peroxide-Scavenging Properties of Normal Human Airway Secretions -- El-Chemaly et al. 167 (3): 425 -- American ...
Scavenging activity measured by the phenol red assay is displayed in relation to activity measured in the absence of any inhibitors (no inhibitor).
scavenging is reduced by heme-peroxidase inhibitors and heat but not by a GPx inhibitor.
scavenging was measured by the phenol red assay.
ajrccm.atsjournals.org /cgi/content/full/167/3/425   (4377 words)

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