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Latest Research : Biotechnology Last Updated: Nov 17th, 2006 - 22:35:04

Latest Research : Biotechnology : Nanotechnology
Gold Nanoparticle Molecular Ruler to Measure Smallest of Life’s Phenomena
Scientists from the U.S. Department Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley have developed a ruler made of gold nanoparticles and DNA that can measure the smallest of life’s phenomena, such as precisely where on a DNA strand a protein attaches itself.
Oct 12, 2006, 13:23

Latest Research : Biotechnology : Nanotechnology
Tiny inhaled particles take easy route from nose to brain
In a continuing effort to find out if the tiniest airborne particles pose a health risk, University of Rochester Medical Center scientists showed that when rats breathe in nano-sized materials they follow a rapid and efficient pathway from the nasal cavity to several regions of the brain, according to a study in the August issue of Environmental Health Perspectives.
Aug 3, 2006, 17:29

Latest Research : Biotechnology
DNA Amplification and Detection Made Simple
Twenty-three years ago, a man musing about work while driving down a California highway revolutionized molecular biology when he envisioned a technique to make large numbers of copies of a piece of DNA rapidly and accurately. Known as the polymerase chain reaction, or PCR, Kary Mullis's technique involves separating the double strands of a DNA fragment into single-strand templates by heating it, attaching primers that initiate the copying process, using DNA polymerase to make a copy of each strand from free nucleotides floating around in the reaction mixture, detaching the primers, then repeating the cycle using the new and old strands as templates. Since its discovery in 1983, PCR has made possible a number of procedures we now take for granted, such as DNA fingerprinting of crime scenes, paternity testing, and DNA-based diagnosis of hereditary and infectious diseases.
Jul 12, 2006, 05:22

Latest Research : Biotechnology
Solitons Could Power Artificial Muscles
Scientists have discovered something new about exotic particles called solitons. Since the 1980s, scientists have known that solitons can carry an electrical charge when traveling through certain organic polymers. A new study now suggests that solitons have intricate internal structures.
Jul 7, 2006, 18:15

Latest Research : Biotechnology : Nanotechnology
Nanoparticles could deliver multi-drug therapy to tumors
In the ongoing search for better ways to target anticancer drugs to kill tumors without making people sick, researchers find that nanoparticles called buckyballs might be used to significantly boost the payload of drugs carried by tumor-targeting antibodies.
Jun 22, 2006, 17:08

Latest Research : Biotechnology : Nanotechnology
Nanotechnology can identify disease at early cellular level
Nanotechnology may one day help physicians detect the very earliest stages of serious diseases like cancer, a new study suggests. It would do so by improving the quality of images produced by one of the most common diagnostic tools used in doctors' offices – the ultrasound machine.
Apr 25, 2006, 21:13

Latest Research : Biotechnology
Light-sensitive particles change chemistry at the flick of a switch
A light-sensitive, self-assembled monolayer that provides unique control over particle interactions has been developed by scientists at the University of Illinois at Urbana-Champaign. Particles coated with the monolayer change their surface charge and chemistry upon exposure to ultraviolet light.
Mar 27, 2006, 16:37

Latest Research : Biotechnology
DNA Fragments for Making Tomatoes Taste Better Identified
Tomatoes are a major nutrient for humans. In 2004, 120,000 tonnes of tomatoes were harvested worldwide - and every year this number increases. Numerous medical studies have shown the health value of tomatoes. Lycopen, the pigment that makes tomatoes red, can for example prevent heart disease. Tomatoes furthermore contain a lot of vitamins C and E, indispensable for human nourishment. But after centuries of cultivation for shape, colour, and other useful qualities, our cultured tomatoes today are of small genetic diversity, in comparison with wild types. This has affected the taste and health value of the fruits.
Mar 27, 2006, 04:19

Latest Research : Biotechnology : Nanotechnology
'Custom' nanoparticles could improve cancer diagnosis and treatment
Researchers have developed "custom" nanoparticles that show promise of providing a more targeted and effective delivery of anticancer drugs than conventional medications or any of the earlier attempts to fight cancer with nanoparticles. Designed at the molecular level to attack specific types of cancer without affecting healthy cells, the nanoparticles also have the potential to reduce side effects associated with chemotherapy, the researchers say. Their study was described today at the 231st national meeting of the American Chemical Society, the world’s largest scientific society.
Mar 27, 2006, 01:35

Latest Research : Biotechnology
Human albumin from tobacco plants
Human serum albumin (HSA) is the intravenous protein most commonly used in the world for therapeutic ends. It is employed to stabilise blood volume and to avoid risk of a heart attack, its administration in operating theatres being almost a daily occurrence. It is used for haemorrhages, burns, surgical operations or when the patient shows symptoms of malnutrition or dehydration, chronic infections and renal or liver illnesses. The annual consumption in Spain is about 10 tons but, at a worldwide level, the demand exceeds 500 tons.
Mar 25, 2006, 15:35

Latest Research : Biotechnology
A new metal detector to study human disease
Zinc may be a familiar dietary supplement to millions of health-conscious people, but it remains a mystery metal to scientists who study zinc’s role in Alzheimer’s disease, stroke and other health problems.
Mar 22, 2006, 08:07

Latest Research : Biotechnology
Crucial breakthrough in pectin biosynthesis
Most people know pectin as a common household gelling agent in making jams and jellies, but its uses are vast. It has anticancer properties, for instance, and may have a role in important biological functions including plant growth and development and defense against disease. Despite the importance of pectin as a major component in the primary walls of plants, scientists have known relatively little about how this family of complex polysaccharides is made. Especially perplexing has been how the synthesis of the three different classes of pectic polysaccharides is coordinated to produce the pectin matrix in cell walls.
Mar 22, 2006, 07:55

Latest Research : Biotechnology
Enzyme computer could live in human body
Israeli researchers have invented a molecular computer that uses enzymes to perform calculations and could eventually be implanted into the human body and monitor the release of drugs.
Feb 25, 2006, 10:00

Latest Research : Biotechnology : Drug Delivery
Using biologically compatible materials to fabricate a nanoshuttle
Researchers at The University of Texas M. D. Anderson Cancer Center report that they have created a way for viral and gold particles to "directly assemble" and potentially seek out and treat disease where it resides in the body. Their study, published in the online early edition of The Proceedings of the National Academy of Sciences (PNAS) the week of Jan. 23 - 27, 2006, shows the use of biologically compatible materials to fabricate a "nanoshuttle" - thousands of times smaller than a human hair - which can be harnessed to viral particles to precisely home to disease wherever it hides. Once there, the nanoshuttle can perform a variety of functions. The study defines how assembled particles of gold - a metal that is not rejected by the body - could possibly be "tuned" to destroy tissue or emit signals that can be detected by imaging devices. The system also can be adapted to form a flexible scaffold that can carry drugs, genes or even cradle restorative stem cells.
Jan 24, 2006, 15:51

Latest Research : Biotechnology
Buckyballs Deform DNA - Surprising Simulation Findings
Soccer-ball-shaped "buckyballs" are the most famous players on the nanoscale field, presenting tantalizing prospects of revolutionizing medicine and the computer industry. Since their discovery in 1985, engineers and scientists have been exploring the properties of these molecules for a wide range of applications and innovations.
Dec 7, 2005, 19:22

Latest Research : Biotechnology
ATP Hydrolysis is Required to Reset the ATP-binding Cassette Dimer
Scientists have a tough time visualizing the tiny hatchways that allow nutrients to pass into our cells, but a group of Purdue University biologists may have found the next best thing: a glimpse into the workings of the "motor" that opens and closes them.
Dec 4, 2005, 09:48

Latest Research : Biotechnology
First comprehensive map of the proteins and kinase signaling network
A team of scientists at Yale University has completed the first comprehensive map of the proteins and kinase signaling network that controls how cells of higher organisms operate, according to a report this week in the journal Nature. The study is a breakthrough in understanding mechanisms of how proteins operate in different cell types under the control of master regulator molecules called protein kinases. Although protein kinases are already important targets of cancer drugs including Gleevec and Herceptin, until recently, it has been difficult to identify the proteins regulated by the kinases.
Dec 1, 2005, 05:37

Latest Research : Biotechnology
Magnetic probe successfully tracks implanted cells
By using MRI to detect magnetic probes of tiny iron oxide particles, an international research team for the first time has successfully tracked immune-stimulating cells implanted into cancer patients for treatment purposes.
Nov 21, 2005, 20:13

Latest Research : Biotechnology
New Microscope Tracks Functioning Protein at Atomic Level
A Stanford University research team has designed the first microscope sensitive enough to track the real-time motion of a single protein down to the level of its individual atoms. Writing in the Nov. 13 online issue of the journal Nature, the Stanford researchers explain how the new instrument allowed them to settle long-standing scientific debates about the way genes are copied from DNA--a biochemical process that's essential to life. In a second paper published in the Nov. 8 online issue of the journal Physical Review Letters, the scientists offer a detailed description of their novel device, an advanced version of the "optical trap," which uses infrared light to trap and control the forces on a functional protein, allowing researchers to monitor the molecule's every move in real time.
Nov 14, 2005, 01:49

Latest Research : Biotechnology
Selenium Speeds Enzymatic Reactions
At the heart of every reaction of every cell lies an enzyme, a protein catalyst. At its active site—a special pocket on its surface—it binds reactants (substrates) and rearranges their chemical bonds, before releasing them as useful products. Rearranging some bonds may require help from certain chemical elements that are present in trace amounts. Many enzymes place these elements at the center of their active sites to do the most critical job.
Nov 8, 2005, 17:44

Latest Research : Biotechnology
Exploring Dynamic Personalities of Proteins
A Brandeis University study published in Nature this week advances fundamental understanding of the dynamic personalities of proteins and proposes that these enzymes are much more mobile, or plastic, than previously thought. The research, based on nuclear magnetic resonance (NMR) experiments, may shed new light on how to improve rational drug design through docking to dynamic targets.
Nov 3, 2005, 16:24

Latest Research : Biotechnology
Biotech failed to meet promises
Promises of cheaper and better drugs using biotechnologies have not been met, say researchers in this week’s BMJ. They assessed biotech products approved by the European Medicine Evaluation Agency between 1995 and 2003.
Oct 14, 2005, 21:43

Latest Research : Biotechnology
Understanding how voltage-gated ion channels operate
One of the biggest mysteries in molecular biology is exactly how ion channels – tiny protein pores through which molecules such as calcium and potassium flow in and out of cells – operate. Such channels can be extremely important; members of the voltage-gated ion channel family are crucial to generating electrical pulses in the brain and heart, carrying signals in nerves and muscles. When channel function goes awry, the resulting diseases – known as channelopathies, including epilepsy, a number of cardiomyopathies and cystic fibrosis – can be devastating.
Oct 12, 2005, 04:56

Latest Research : Biotechnology
Call for funding boost for robotics research in US
When it comes to developing robots for use in biology and medicine, no country is currently a match for the United States . But that situation could change within the next few years, according to a new report.Unless the government boosts funding for robotics research, the United States – the world leader for research and manufacturing of robotic systems for tasks such as surgery and DNA sequencing – will likely have to start relying on technology from other countries, said Yuan F. Zheng, professor of electrical and computer engineering at Ohio State.
Sep 20, 2005, 22:04

Latest Research : Biotechnology
Biochemistry's future – with quantum physics
Chemists who have trouble predicting how some large, complex biological molecules will react with others may soon have a solution from the world of computational quantum physics, say Purdue University researchers.
Sep 19, 2005, 12:20

Latest Research : Biotechnology
First comprehensive study of human hair on nanometer level
Ohio State University researchers have just completed the first comprehensive study of human hair on the nanometer level.
Sep 9, 2005, 17:41

Latest Research : Biotechnology
Artificial intelligence to help intensive care doctors
A team of systems engineers from the University of Sheffield is developing an intelligent computer system which imitates a doctor's brain to make treatment decisions for intensive care patients. The system will take some of the workload from emergency medical teams by monitoring patients' vital signs and then evaluating and administering the right amounts of different drugs needed - a job usually carried out by specialist medical doctors.
Sep 4, 2005, 09:27

Latest Research : Biotechnology
A Global View of DNA-Packing Proteins Cracks the Histone Code
In one of biology's most impressive engineering feats, specialized proteins package some six-and-a-half feet of human DNA into a nucleus that averages just 5 microns (0.0001969 inches) in diameter. In the first of a series of supercondensing steps, DNA winds around proteins called histones, which together form a complex called the nucleosome. Histones package DNA into repetitive coils, which not only provide genomic structure but also help regulate gene expression. These tasks are mediated in part by chemical modifications to histone proteins—most commonly to histone “tails,” long, unstructured chains of amino acids that protrude from nucleosomes. Different chemical modifications are associated with different functional effects. Acetylation, which adds an acetyl group to an amino acid on the histone tail, has been linked to both gene activation and silencing, depending on which amino acid is modified. Methylation (addition of a methyl group to the histone tail) has also been linked to gene activation and repression, although the chemical effects of methylation differ dramatically from those of acetylation.
Aug 31, 2005, 02:12

Latest Research : Biotechnology : Drug Delivery
DNA buckyballs for drug delivery created
DNA isn't just for storing genetic codes any more. Since DNA can polymerize -- linking many molecules together into larger structures -- scientists have been using it as a nanoscale building material, constructing geometric shapes and even working mechanical devices.
Aug 29, 2005, 22:36

Latest Research : Biotechnology
Method to predict protein separation behavior directly from protein structure
Applying math and computers to the drug discovery process, researchers at Rensselaer Polytechnic Institute have developed a method to predict protein separation behavior directly from protein structure. This new multi-scale protein modeling approach may reduce the time it takes to bring pharmaceuticals to market and may have significant implications for an array of biotechnology applications, including bioprocessing, drug discovery, and proteomics, the study of protein structure and function.
Aug 20, 2005, 16:38


Headlines
Latest Research
Phase Ib Trial Is Evaluating Bavituximab Administered With Common Chemotherapy Regimens
Treatment with hormones improves visual memory of postmenopausal women
Sleep Apnea Treatment Curbs Aggression in Sex Offenders
Occupational therapy improves quality of life for dementia patients
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Scientists design simple dipstick test for cocaine, other drugs
British scientists create artificial stomach
Pregnant women with lupus are at higher risk for complications
Memories: It's all in the packaging
Seven-point system gauges seriousness of heart failure in elderly
New Effort to Treat Stroke More Effectively
Keeping A3G in action represents a new way to attack HIV
Fighting HIV With HIV Virus Itself
Children’s Belly Fat Increases More Than 65 Percent
Common Antacids Could Help Keep Gingivitis at Bay
New way of tracking muscle damage from radiation
New brain-chemistry differences found in depressed women
Retina can provide a very reliable way of diagnosing cerebral malaria
Hormone therapy does not improve quality of life for women
Anxiety sensitivity linked to future psychological disorders
Rising abdominal obesity among kids causes concern
How cells adhere so firmly to blood vessel walls
Cot death could be linked to brain defect
C. elegans provides model for the genetics of nicotine dependence
Resveratrol Increases Lifespan of Obese Mice
Uric acid levels closely related to hypertension in Blacks
Predicting survival in liver transplant patients
American College of Cardiology announces new initiative to improve safety for patients with Acute Coronary Syndromes
Two-component lantibiotic with therapeutic potential discovered
Hope remains for Alzheimer's sufferers
New Insight into Cell Division
Breast cancer chemotherapy may deterioration in cognitive function
Many adults with psychiatric disorders may also have undiagnosed ADHD
Lisdexamfetamine dimesylate (NRP104/LDX) is generally well-tolerated.
Cognitive Decline is Often Undetected - Study
Are influenza vaccines worth the effort?
Researchers find a gene variant that protects against development of IBD
New research into csd genes could help designing strategies for breeding honey bees
Is TROPHY misleading?
I-ELCAP study: Lung cancer can be detected early with annual low-dose CT screening
A light daily exercise program may reduce the incidence of colds
Atrial Fibrillation linked to Reduced Cognitive Performance
Genomic signatures to guide the use of chemotherapeutics
Anxiety Disorders and Physical Illness
Human Memory Gene Identified
Making the connection between a sound and a reward changes behavioral response
Medical induction of labor increases risk of amniotic-fluid embolism
Researchers Create First Working Invisibility Cloak
Laser Analysis Points to Brain Pigment's Hidden Anatomy
Link between short sleep duration and obesity uncovered
Medical News
Google could help diagnose difficult medical cases
Overseas Doctors hit by new British HSMP immigration rules
Mental health problems threaten the knowledge economy
Indians among worst affected by TB in Britain
Bihar to get eight new private medical colleges
Future of sexual and reproductive health at tipping point according to global study
Profiles of serial killers have limitations
Concerns over abortion law in the US state of South Dakota
European Alcohol Strategy Threatened by Industry Tactics
Raine Study: Breastfeeding boosts mental health
Severe discrimination based on race and ethnicity in medical-school admissions at University of Michigan
Small But Substantial Proportion Of Surgical Residents Interested In Part-Time Training
Lawrence Berkeley National Laboratory Opens the National Center for X-ray Tomography (NCXT)
States That Easily Grant Immunization Exemptions Have Higher Incidence Of Whooping Cough
The need for "exercise prescriptions."
Robot wheelchair may give patients more independence
Study calls for 39 percent more family physicians in USA
Sleep-related breathing disorder can increase risk of depression
Mandarin oranges decrease liver cancer risk,atherosclerosis
The future of plastic surgery
Parents drink, Suffer the Children
University of Pittsburgh to host Global Health Conference
EMCare now available via Dialog and Datastar
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Mental health units should not be exempt from smoking ban
Fewer Girls Under China's One Child Policy
Online video games found to promote sociability
Community model effective in allotting anti-AIDS medication
FDA safety alerts for automated external defibrillators occur frequently
Conjoined American twins separated
Young teens see pregnancy as a way to enhance relationships
Increased understanding of what helps or hinders disclosure could help patients
Food labels should list trans fats to help reduce coronary heart disease
NHS may be buying surgical equipment unethically
Is it time to give NHS more independence?
A mother's attentiveness to baby's distress is important
University of Leeds receives Gates Foundation grant for material approach to malaria prevention
Indian scientists develop Elisa tests for avian influenza
High Common Daily Activity Levels Reduce Risk Of Death
How Group Dynamics Affect Fitness and Eating Habits
DDT in moms harmful to kids, study
Ultraviolet radiation from sunbeds increases skin-cancer risk
Drug approval processes may have delayed warnings about safety of Paroxetine
Tuberculosis control and impact of socially excluded groups
Pertussis Endemic Among UK School Children
Building a safer NHS: How safe are the patients?
Hospital Performance Results Do Not Always Reflect Patient Outcomes
EPICURUS: Job satisfaction is the most critical factor for life satisfaction
Humans could learn a lot from ants
A Placebo a Day, Keeps the Doctor Away
Careers
Certification of UK doctors would improve quality of care
Exam nerves affects students' immune defence
Jefferson Acquires Wills Eye Residency Programs
Hyderabad ISB student offered 10 million annual pay
Work permit rule hits Indian doctors in Britain
JIPMER Pondicherry set for revamp
Factors in religious sensitivity for medical students
AMA Sets Out Strategy To Get More Doctors Working in Rural and Regional Australia
NHS dentists increased by 1,100 in a year
Major Increase in U.S. Medical School Enrollment
Revised GRE® General Test to Premiere in October 2006
Birrell Report Reflects AMA Recommendations on OTD Assessment
World’s First Internet-Based English-Proficiency Test
Low numbers of state school students enter medical school
Renewed interest in young physicians to pursue research careers
States Must Increase Advanced Surgical Training (AST) Places
Women doctors and their careers: what now?
Number Of Students In U.S. Medical Schools Remains Constant
Record Number Of Trainee Residents And Fellows In US
Foundation Trust Network reaches historic agreement with Royal Colleges
On Call Induced Intoxication in Junior Doctors - Research
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Second Counseling Breakthrough for All India Medical PG Seats
Stop Passing the Buck on Surgical Training
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Survey Of 76,000 Nurses Probes Elements Of Job Satisfaction
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New Junior Doctor Training Curriculum Launched
Kalam's Clarion call to the Young Scientists to become Continuous Innovators
JCHMT assessment tools are now available
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Supreme Court of India sought information about numbers of All India Medical Post Graduate (PG) Seats
Shortfall predicted in number of surgeons in UK
Overseas doctors are finding it difficult to get jobs in UK
Overseas junior doctors warned to expect unemployment in the UK
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Accelerating Loss of Ocean Species Threatens Human Well-being
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Waiting For Trial Results Sometimes Unethical
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Doctors inadvertently help terminally ill patients to die sooner
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Thermal Adaptation in Bacterial Viruses
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Why women live longer than men
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VitaCig - Cigarettes with Vitamin C that don't stain teeth
Indian scribe pleads for mercy killing
A sneeze could give away your personality traits
Two-week-old embedded arrow surgically removed
Fruitfly study shows how evolution wings it
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Pandemic prevention plan approved for Asia Pacific
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Conjunctivitis caused by H7 avian influenza in a UK poultry worker
75 die of malaria in Assam, over 300,000 affected
Bird flu strain makes Britain slaughter chicken
China confirms new human case of bird flu
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EU for support to bird flu-hit poultry market
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Malaria alert in Tripura
RealOpt - Computer Program to Halt Pandemics
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Madhya Pradesh relaxes ban on transporting poultry
Fresh bird flu scare in Pakistan
Malaria epidemic kills 50 in Assam
Thousand birds die in Orissa poultry farm
Pakistan confirms bird flu outbreak near Islamabad
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Bank notes, photocopiers could help check epidemics
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Unusual Outbreak of Streptococcus suis with Symptoms of Toxic Shock Syndrome in China
More donor money needed for bird flu: UN official
First case of H5N1 virus confirmed in Britain
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Third bird flu case among humans confirmed in Egypt
Pakistan confirms presence of bird flu
Meningitis claims 34 lives in Delhi in three months
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Culling operations completed in Maharashtra
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Minor mutations in avian flu virus increase chances of human infection
Egypt reports second suspected human case of bird flu
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Bhopal shrugs off flu scare
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Chief Medical Editor: Dr Sanjukta Acharya; Managing Editor & Founder: Dr Himanshu Tyagi; Editors: Dr Rashmi Yadav, Dr Ankush Vidyarthi; Chief Correspondent: Dr Priya Saxena
© Copyright 2004 by rxpgnews.com
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