www.vci.org (Alternative Treatment for Prostate Cancer) No Erectile Dysfunction Hyperthermia is one of the most successful and low side effects Prostate cancer tratment available in the world. Dr James Bicher, a pioneer in the field of Hyperthermia, has been successfully treating pations for over 30 years with this FDA approved cancer treatment modality. Hyperthermia does not have the sexual side effects of impotence, incontinence, and possible diarrhea. Those sexual side effects from surgery, high radiation does, hormone therapy, or chemotherapy, could be temporal (moths or up to two years) or permanent. www.vci.org ?????????????????????????????????? More Useful Links Alternative Approaches to Prostate Cancer ? Michael Schachter MD ? All prostate cancer patients should use alternative cancer therapies. In general, they should be used prior to beginning conventional treatment. ? www.healthy.net (Alternative Prostate Cancer) treatment Holistic( Prostate Cancer ? (Alternative Prostate Cancer) treatment Holistic Prostate Cancer cure, VCI researches and clinically uses Hyperthermia, natural less toxic cancerocidal ? www.vci.org treatments for prostate cancer, prostate cancer treatment ? Prostate Cancer Treatment | Alternative Prostate Cancer Treatment |. institute for cancer research. APJohn. Prostate Cancer ? www.apjohncancerinstitute.org ? Alternative prostate cancer treatment alternative ?
This entry was posted on Thursday, March 29th, 2012 at 11:00 pm and is filed under Treatment. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.
Friendly reminder here, folks. As expected, AT&T has opened the pre-order floodgates for the Nokia Lumia 900 today ahead of its April 8th release in the US. Interested parties can secure their reservation for the Window Phone 7.5-loaded device at either AT&T's retail or online stores. While you'll be able to snag one in either matter black or cyan blue, we'd be remiss not to point out that the white version (slated for an April 22nd release) isn't yet on offer. If you'll recall, parting with $100, along with agreeing to a two-year contract is all it'll cost ya' to get in on the action. Be sure to let us know if you plan on reaching for the "light" in the comments.
Update: Wowza, if $100 wasn't already easy on the wallet, Walmart is offering the device up for only $50 with a two-year agreement -- online only, though. You'll find more info at the source link below.
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Your skin care program needs to work right for you skin to look great so make sure it?s geared toward your skin type. If your skin tends to be oily you?ll want to avoid products for dry skin so your skin doesn?t become confused. Also get to know and understand your skin type because if you do then you will know exactly what it needs throughout the year. There are many more skin care tips for all skin types including yours, so continue with the article to learn more.
Water temperature matters, so be careful when showering or washing your face. You may not know that dermatologists recommend water no warmer than lukewarm for facial cleansing. Removing all of the oil from your skin will only dry it out which is the effect hot water will have. Cold is just as bad since it shocks your skin causing the capillaries to burst. Whether you suffer from oily or dry skin, make sure you develop the habit of exfoliating at least once every week. Lots of dead cells can build up on your skin and your skin needs your help to get rid of the buildup.
Exfoliation can be done using homemade remedies or bottled products that you can buy in the store. Natural products can work just as well as store bought products.
Some women like using what are called microdermabrasion kits, and some of the feedback has been very good. Properly and regularly exfoliated skin often looks smoother, healthier and more radiant than non exfoliated skin.
Don?t use tap water if you can help is since this usually consists of chlorine, fluoride and other harsh chemicals. You really should not use tap water on your face at all. Use a filtered water instead. Avoiding tap waters chlorine base will help keep your skin from drying out or irritating. Avoid products that contain alcohol or other harsh chemicals. Good skin care is imperative no matter what kind of skin you have because all skin is susceptible to damage. Qualified beauticians can help you figure out your skin type if you do not already know what it is. She will be able to assist you in developing your skin care routine but be on the lookout for marketing and up-selling you things that you do not actually need. Once you?ve gotten a routine, you?ll probably need to test out a few different individual products to figure out which ones are the best for you and your skin. The best product to test with is the Meaningful beauty product.
Meaningful beauty product was advice by Ramon King to use if ever you have any problems about your skin. For more info: Visit this site. http://www.the-anti-aging-report.com/reviews/wrinkle-cream-reviews.php http://smootherface.net/hydroxatone/
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Giant piezoelectricity from ZnO materials, comparable with perovskite, was achievedPublic release date: 29-Mar-2012 [ | E-mail | Share ]
Contact: Pan Feng panf@mail.tsinghua.edu.cn Science in China Press
In recent years, with the growing concerns over environmental protection and human health, environment-friendly materials have received increasing attention, and for decades researchers have been fiercely studying lead-free piezoelectric materials with high piezoelectric properties. After more than 7-years of innovative research, Professor PAN Feng and his group from Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, presented a new type of environment-friendly piezoelectric material with giant piezoresponse and simple structure, small-ion-doped ZnO. They also provided a general rule describing the impact of doping on the piezoresponse of ZnO films. Specifically, if doped ions substitute at Zn2+ sites, doping ZnO with small/big ions can enhance/reduce the piezoresponse. This rule is a useful guide in fabricating enhanced piezoresponse in wurtzite materials and offers a new paradigm to seek environment-friendly piezoelectric materials with high piezoelectric properties. Their work, titled "Giant piezoresponse and promising application of environmental friendly small-ion-doped ZnO", was published in SCIENCE CHINA Technological Sciences.2012, Vol 55(2).
Piezoelectric materials are key materials for the fabrication of various transducers, pressure sensors and actuators, piezoelectric oscillator and actuators, transformer, surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices, which are widely used in the fields of information, energy, machinery, electronics, national defense, among others. Because of their excellent piezoelectric property, lead (Pb)-based piezoelectric materials is one of the most widely exploited and extensively used piezoelectric materials. However, Pb is highly toxic and its toxicity can be further enhanced due to its easy volatilization during processing. Thus, processing and use of Pb-based piezoelectric materials can contaminate environments and damage human health, thereby limiting their applications. With the rise in environmental awareness, lead-free piezoelectric materials have received greater attention, the prevailing trend being that environment-friendly lead-free piezoelectric materials will replace Pb-based piezoelectric materials.
As a piezoelectric material, ZnO has various advantages. Firstly, it has the strongest piezoelectric response among the tetrahedrally-bonded semiconductors. Secondly, it is structurally simple and easy to fabricate. Moreover, ZnO films are compatible with semiconductor processes, and therefore has been widely used as sensors and actuators in micro-electromechanical systems and as SAW and BAW devices in the field of communications. However, performance improvements in piezoelectric devices demand significant piezoelectric behavior and stronger piezoresponse; in that regard d33 is the important parameter for evaluating piezoelectric property in ZnO. For bulk ZnO, and for an oriented ZnO film, the piezoresponses are ~9.9 pC/N and ~12.4 pC/N, respectively, which are approximately one or two orders of magnitude lower compared with Pb-based piezoelectric materials. Many researchers have focused on pure ZnO ?lms and attempted to improve its properties by optimizing the preparation conditions; the results though were ineffective.
Doping is a good method to improve the piezoelectric properties of Pb-based piezoelectric materials, and there are many successful examples of improvements in the properties of ZnO films by doping. Doping with Al and Ga can improve the quality and conductivity of ZnO films. Co-doping can induce room-temperature ferromagnetism in Co-doped ZnO films. For this reason, transition-metal doping of ZnO films has been investigated and piezoresponses quantified. It is found that Zn0.975V0.025O and Zn0.94Cr0.06O ?lms possess maximum d33 values of ~170 and ~120 pC/N, respectively, which are about one order of magnitude larger than for pure ZnO ?lms, but quite comparable with those of perovskite piezoelectrics. As shown in Figure 1, the displacement-applied voltage (D-V) curve of Zn0.975V0.025O is typically a butterfly-like loop. The corresponding piezoresponse hysteresis loop is switchable. From a macroscopic point of view, the giant piezoresponse in ZnO ?lms is considered to be the emergence of switchable spontaneous polarization as well as to a relatively high permittivity. In contrast, 2 at.% Cu-doped ZnO ?lms have a d33 of ~13.6 pC/N, and Fe- and Co-doped ZnO ?lms with the same doping concentration have d33 values of ~6pC/N and ~11 pC/N, both smaller than for pure ZnO films (~12) pC/N. Through analyzing and calculating the X-ray absorption spectroscopy spectrum of the dopant, it was found that V5+ (radii of 0.59 ), Cr3+ (radii of 0.63 ), Cu2+ (radii of 0.72 ), Fe2+ (radii of 0.76 ), and Co2+ (radii of 0.79 ) substitute for Zn2+ (radii of 0.74 ) in Zn0.975V0.025O, Zn0.94Cr0.06O ?lms Zn0.98Cu0.02O, Zn0.98Fe0.02O, and Zn0.98Co0.02O respectively. From a microscopic point of view, the piezoresponse in ZnO is mainly governed by the ease of noncollinear bonds along the polar c axis toward the direction of the applied ?eld. Small-ion substitution, i.e. V5+ (0.59), Cr3+ (0.63 ), and Cu2+ (0.72 ), for Zn2+(0.74 ) make the V-O1, Cr-O1, and Cu-O1 bonds rotate easier in the direction of the applied ?eld and enhance the corresponding electromechanical responses. For 2 at. % Fe- and Co-doped ZnO ?lms, the bigger ionic size in the Zn2+ site makes the rotation of the Fe-O1 and Co-O1 bonds dif?cult, thus decreasing the piezoresponse.
In ZnO:Mn films where Mn2+ (0.80) with a big radius gets substituted at the Zn2+ sites, the piezoresponse is only 8.2 pC/N, which is smaller for pure ZnO films. Substitution of Mn3+/Mn4+ (0.66/0.60), with small radius and greater positive charge, at Zn2+ site, yields an enhanced piezoresponse of up to 86 pC/N. Through investigating the relationship between Mn ionic size and the piezoresponse values, the ionic size and the chemical state of the dopant have been confirmed as the key factors in the piezoresponse of doped-ZnO films.
In ZnO:Fe films, Fe2+ (0.76 ), with a big radius, also gets substituted at Zn2+ sites, the piezoresponse is only 7 pC/N. After annealing in O2, Fe2+ is oxidized to Fe3+ (0.64 ) and the piezoresponse improved to 120 pC/N. The modified ZnO films with high piezoresponses can be used as promising environment-friendly piezoelectric materials. The substitution rule has provided a new way in seeking lead-free piezoelectric materials. Pure ZnO and V-doped ZnO films were used to fabricate SAW devices. Compared with devices based on pure ZnO films, the devices based on ZnO:V films with giant piezoresponses have smaller insertion losses and higher electromechanical coupling coef?cients.
By enhancing the piezoresponse of ZnO and made comparable to that of Pb-based piezoelectric materials, the performances of available ZnO-based SAW devices were improved significantly. Additionally, the enhanced piezoelectricity can widely extend the applications range of ZnO. Because ZnO not only possesses high piezoelectric response, but also is an abundant raw material that is environment-friendly, it competes and stands to replace Pb-based piezoelectric materials as the promising piezoelectric materials.
###
This work was completed by many researchers from different institutes and universities. This work was supported by the National Hi-tech (R&D) Program of China, the National Natural Science Foundation of China and the National Basic Research Program of China.
See the article: Pan F, Luo J T, Yang Y C, et al. Giant piezoresponse and promising application of environmental friendly small-ion-doped ZnO. SCI CHINA Tech Sci, 2012, 55(2):1.
[ | E-mail | Share ]
?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Giant piezoelectricity from ZnO materials, comparable with perovskite, was achievedPublic release date: 29-Mar-2012 [ | E-mail | Share ]
Contact: Pan Feng panf@mail.tsinghua.edu.cn Science in China Press
In recent years, with the growing concerns over environmental protection and human health, environment-friendly materials have received increasing attention, and for decades researchers have been fiercely studying lead-free piezoelectric materials with high piezoelectric properties. After more than 7-years of innovative research, Professor PAN Feng and his group from Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, presented a new type of environment-friendly piezoelectric material with giant piezoresponse and simple structure, small-ion-doped ZnO. They also provided a general rule describing the impact of doping on the piezoresponse of ZnO films. Specifically, if doped ions substitute at Zn2+ sites, doping ZnO with small/big ions can enhance/reduce the piezoresponse. This rule is a useful guide in fabricating enhanced piezoresponse in wurtzite materials and offers a new paradigm to seek environment-friendly piezoelectric materials with high piezoelectric properties. Their work, titled "Giant piezoresponse and promising application of environmental friendly small-ion-doped ZnO", was published in SCIENCE CHINA Technological Sciences.2012, Vol 55(2).
Piezoelectric materials are key materials for the fabrication of various transducers, pressure sensors and actuators, piezoelectric oscillator and actuators, transformer, surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices, which are widely used in the fields of information, energy, machinery, electronics, national defense, among others. Because of their excellent piezoelectric property, lead (Pb)-based piezoelectric materials is one of the most widely exploited and extensively used piezoelectric materials. However, Pb is highly toxic and its toxicity can be further enhanced due to its easy volatilization during processing. Thus, processing and use of Pb-based piezoelectric materials can contaminate environments and damage human health, thereby limiting their applications. With the rise in environmental awareness, lead-free piezoelectric materials have received greater attention, the prevailing trend being that environment-friendly lead-free piezoelectric materials will replace Pb-based piezoelectric materials.
As a piezoelectric material, ZnO has various advantages. Firstly, it has the strongest piezoelectric response among the tetrahedrally-bonded semiconductors. Secondly, it is structurally simple and easy to fabricate. Moreover, ZnO films are compatible with semiconductor processes, and therefore has been widely used as sensors and actuators in micro-electromechanical systems and as SAW and BAW devices in the field of communications. However, performance improvements in piezoelectric devices demand significant piezoelectric behavior and stronger piezoresponse; in that regard d33 is the important parameter for evaluating piezoelectric property in ZnO. For bulk ZnO, and for an oriented ZnO film, the piezoresponses are ~9.9 pC/N and ~12.4 pC/N, respectively, which are approximately one or two orders of magnitude lower compared with Pb-based piezoelectric materials. Many researchers have focused on pure ZnO ?lms and attempted to improve its properties by optimizing the preparation conditions; the results though were ineffective.
Doping is a good method to improve the piezoelectric properties of Pb-based piezoelectric materials, and there are many successful examples of improvements in the properties of ZnO films by doping. Doping with Al and Ga can improve the quality and conductivity of ZnO films. Co-doping can induce room-temperature ferromagnetism in Co-doped ZnO films. For this reason, transition-metal doping of ZnO films has been investigated and piezoresponses quantified. It is found that Zn0.975V0.025O and Zn0.94Cr0.06O ?lms possess maximum d33 values of ~170 and ~120 pC/N, respectively, which are about one order of magnitude larger than for pure ZnO ?lms, but quite comparable with those of perovskite piezoelectrics. As shown in Figure 1, the displacement-applied voltage (D-V) curve of Zn0.975V0.025O is typically a butterfly-like loop. The corresponding piezoresponse hysteresis loop is switchable. From a macroscopic point of view, the giant piezoresponse in ZnO ?lms is considered to be the emergence of switchable spontaneous polarization as well as to a relatively high permittivity. In contrast, 2 at.% Cu-doped ZnO ?lms have a d33 of ~13.6 pC/N, and Fe- and Co-doped ZnO ?lms with the same doping concentration have d33 values of ~6pC/N and ~11 pC/N, both smaller than for pure ZnO films (~12) pC/N. Through analyzing and calculating the X-ray absorption spectroscopy spectrum of the dopant, it was found that V5+ (radii of 0.59 ), Cr3+ (radii of 0.63 ), Cu2+ (radii of 0.72 ), Fe2+ (radii of 0.76 ), and Co2+ (radii of 0.79 ) substitute for Zn2+ (radii of 0.74 ) in Zn0.975V0.025O, Zn0.94Cr0.06O ?lms Zn0.98Cu0.02O, Zn0.98Fe0.02O, and Zn0.98Co0.02O respectively. From a microscopic point of view, the piezoresponse in ZnO is mainly governed by the ease of noncollinear bonds along the polar c axis toward the direction of the applied ?eld. Small-ion substitution, i.e. V5+ (0.59), Cr3+ (0.63 ), and Cu2+ (0.72 ), for Zn2+(0.74 ) make the V-O1, Cr-O1, and Cu-O1 bonds rotate easier in the direction of the applied ?eld and enhance the corresponding electromechanical responses. For 2 at. % Fe- and Co-doped ZnO ?lms, the bigger ionic size in the Zn2+ site makes the rotation of the Fe-O1 and Co-O1 bonds dif?cult, thus decreasing the piezoresponse.
In ZnO:Mn films where Mn2+ (0.80) with a big radius gets substituted at the Zn2+ sites, the piezoresponse is only 8.2 pC/N, which is smaller for pure ZnO films. Substitution of Mn3+/Mn4+ (0.66/0.60), with small radius and greater positive charge, at Zn2+ site, yields an enhanced piezoresponse of up to 86 pC/N. Through investigating the relationship between Mn ionic size and the piezoresponse values, the ionic size and the chemical state of the dopant have been confirmed as the key factors in the piezoresponse of doped-ZnO films.
In ZnO:Fe films, Fe2+ (0.76 ), with a big radius, also gets substituted at Zn2+ sites, the piezoresponse is only 7 pC/N. After annealing in O2, Fe2+ is oxidized to Fe3+ (0.64 ) and the piezoresponse improved to 120 pC/N. The modified ZnO films with high piezoresponses can be used as promising environment-friendly piezoelectric materials. The substitution rule has provided a new way in seeking lead-free piezoelectric materials. Pure ZnO and V-doped ZnO films were used to fabricate SAW devices. Compared with devices based on pure ZnO films, the devices based on ZnO:V films with giant piezoresponses have smaller insertion losses and higher electromechanical coupling coef?cients.
By enhancing the piezoresponse of ZnO and made comparable to that of Pb-based piezoelectric materials, the performances of available ZnO-based SAW devices were improved significantly. Additionally, the enhanced piezoelectricity can widely extend the applications range of ZnO. Because ZnO not only possesses high piezoelectric response, but also is an abundant raw material that is environment-friendly, it competes and stands to replace Pb-based piezoelectric materials as the promising piezoelectric materials.
###
This work was completed by many researchers from different institutes and universities. This work was supported by the National Hi-tech (R&D) Program of China, the National Natural Science Foundation of China and the National Basic Research Program of China.
See the article: Pan F, Luo J T, Yang Y C, et al. Giant piezoresponse and promising application of environmental friendly small-ion-doped ZnO. SCI CHINA Tech Sci, 2012, 55(2):1.
[ | E-mail | Share ]
?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Bankruptcy and taxes can go together in a couple of different ways.
For people in search of debt relief, bankruptcy can potentially allow the discharge of income tax debt. This could include stopping an IRS tax levy.
There's another way as well. New research shows that many Americans who are short of cash are using their tax rebates to pay for a bankruptcy filing.
Jialan Wang, a business finance professor at Washington University in St. Louis, collaborated with colleagues at two other schools on the research. The focus was on the connection between tax rebates and bankruptcy filings. The study examined two different years: 2001 and 2008.
Those years were chosen because they were years in which many people received rebates.
In 2001, bankruptcy filings increased by two percent after rebate checks were issued. In 2008, the increase was even greater: seven percent.
As Prof. Wang pointed out in her published paper, the 2005 overhaul of federal bankruptcy law significantly increased the cost of filing for bankruptcy. Legal and administrative rose substantially. The amended law also imposed a new requirement of credit counseling, which the bankruptcy filer had to pay for.
The number of bankruptcy filings in the first few years after the new law took effect dropped. But then, especially during after the Great Recession, they rose again. The number of filings every year now is approaching levels of before 2005.
Numbers are likely to remain high, Prof. Wang believes, as long as so many Americans are dealing with large amounts of personal debt.
Source: "What thousands of Americans are doing with their tax rebates: filing for bankruptcy," Neil Schoenherr, Washington University in St. Louis, 3-27-12
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Public release date: 29-Mar-2012
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