Guest Post – Page 789 – Shamskm: A site to exchange knowledge and solutions

Study: Heart Damage after Chemo Linked to Stress in Cardiac Cells

By Guest PostMay 22, 2012Healthblocking, breast cancer, cancer cell, cardiac damage, cardiomyocytes, cellular level, chemotherapy, doxorubicin, drug, gene, govindasamy ilangovan, heart, heart muscle cells, heat shock factor 1, hsf 1, karthikeyan krishnamurthy, kaushik vedam, mdr1, multidrug resistance 1, nf kb, ohio state university, protein, ragu kanagasabai

COLUMBUS, Ohio – Blocking a protein in the heart that is produced under stressful conditions could be a strategy to prevent cardiac damage that results from chemotherapy, a new study suggests.

Previous research has suggested that up to a quarter of patients who receive the common chemotherapy drug doxorubicin are at risk of developing heart failure later in life. Exactly how that heart damage is done remains unclear.

In this study, scientists identified a protein called heat shock factor-1 (HSF-1) as a likely source of chemotherapy-related heart damage in mice and cell cultures. Heat shock factor-1 is known to be induced by stress – in this case, the chemotherapy treatment itself. (more…)

Study Highlights How Twitter is Used to Share Information After a Disaster

By Guest PostMay 22, 2012Media, Technology2011 nuclear disaster, andrew binder, fukushima, fukushima daiichi, fukushima disaster, hazard, Japan, nuclear plant, social media, technology issues, tool, tsunami, tweets, Twitter, twitter posts, united states, websites

A study from North Carolina State University shows how people used Twitter following the 2011 nuclear disaster in Japan, highlighting challenges for using the social media tool to share information. The study also indicates that social media haven’t changed what we communicate so much as how quickly we can disseminate it.

“I wanted to see if Twitter was an effective tool for sharing meaningful information about nuclear risk in the wake of the disaster at the Fukushima Daiichi nuclear plant,” says Dr. Andrew Binder, an assistant professor of communication at NC State and author of a paper describing the work. “I knew people would be sharing information, but I wanted to see whether it was anecdotal or substantive, and whether users were providing analysis and placing information in context. (more…)

Cell Network Security Holes Revealed, With an App to Test Your Carrier

By Guest PostMay 22, 2012Technologyandroid app, android smartphones, cellular network, Facebook, firewall technology, http, ieee symposium, middleboxs, nicole casal moore, san francisco, sandboxing, security, sequence numbers, smartphone malware, tcp internet connection, Twitter, university of michigan, z morley mao, zhiyun qian

ANN ARBOR, Mich.— Popular firewall technology designed to boost security on cellular networks can backfire, unwittingly revealing data that could help a hacker break into Facebook and Twitter accounts, a new study from the University of Michigan shows.

The researchers also developed an Android app that tells phone users when they’re on a vulnerable network. They will present their work May 22 at the IEEE Symposium on Security and Privacy in San Francisco. (more…)

Muslim Brotherhood Candidate Trails in Race for Egypt’s Presidency: UMD Poll

By Guest PostMay 22, 2012Politics2011 revolution, abd al menem abul fotouh, ahmed shafiq, amr mousa, arab league chief, arabs, Economy, egypt, egyptians, gamal abdel nasser, hamdeen sabahi, iran, islamic sharia law, islamist moderate, Israel, king abdullah, middle east, mohamed morsi, muslim brotherhood, nasserist, palestinians, parliamentary election, political scientist, presidency, President Obama, prime minister, recep teyyib erdogan, salafi, saudi arabia, shibley telhami, syria, turkey, umd poll, university of maryland

Majority of Egyptians Faults Brotherhood Fielding its Own Candidate

COLLEGE PARK, Md. – As Egypt prepares this week to elect its first president since the 2011 revolution, a new University of Maryland poll finds the Muslim Brotherhood’s candidate tied for fourth place. Researchers describe the race as fluid.

The poll confirms the strategic damage inflicted by the Brotherhood’s decision to field its own candidate, after saying it would not. Nearly three-quarters of those surveyed (71 percent) called the decision a “mistake.”

The poll also shows Egyptians approaching the race differently from Parliamentary elections, focusing more on personal trust and the economy over party affiliation. (more…)

New Study by WHOI Scientists Provides Baseline Measurements of Carbon in Arctic Ocean

By Guest PostMay 21, 2012Environmentalaska, arctic ocean, biogeosciences, canada basin, canadian coast guard, carbon, carbon 13, carbon atoms, carbon cycle, carbon dioxide, CO2, david griffith, fiona mclaughlin, global climate, icebreaker, li xu, marine ecosystem, organic carbon, pacific, pathway, robie macdonald, sea ice melt, Siberia, temperatures, whoi

Scientists from the Woods Hole Oceanographic Institution (WHOI) have conducted a new study to measure levels of carbon at various depths in the Arctic Ocean. The study, recently published in the journal Biogeosciences, provides data that will help researchers better understand the Arctic Ocean’s carbon cycle—the pathway through which carbon enters and is used by the marine ecosystem. It will also offer an important point of reference for determining how those levels of carbon change over time, and how the ecosystem responds to rising global temperatures.

“Carbon is the currency of life. Where carbon is coming from, which organisms are using it, how they’re giving off carbon themselves—these things say a lot about how an ocean ecosystem works,” says David Griffith, the lead author on the study. “If warming temperatures perturb the Arctic Ocean, the way that carbon cycles through that system may change.” (more…)

What Does Islam Say About the Fate of Non-Muslims?

By Guest PostMay 21, 2012Politicsfate, infidels, islamic belief, islamic thought, muslims, non muslims, salvation, salvation of muslims

EAST LANSING, Mich. — Since Sept. 11, it has become increasingly common to hear about Muslims who condemn all non-Muslims – or “infidels” – to hell, but this has never been a foundation of Islamic thought, argues a Michigan State University professor who recently published a first-of-its-kind book on non-Muslim salvation. (more…)

New Silicon Memory Chip Developed

By Guest PostMay 21, 2012Science, Technologyadnan mehonic, brain function, computer processor, energy, flash memory chips, memristors, metal, mobile devices, neurons, oxides, reram, resistive ram, semiconductor, silicon chips, silicon memory chip, silicon oxide, Technology, tony kenyon, usb sticks

The first purely silicon oxide-based ‘Resistive RAM’ memory chip that can operate in ambient conditions– opening up the possibility of new super-fast memory – has been developed by researchers at UCL.

Resistive RAM (or ‘ReRAM’) memory chips are based on materials, most often oxides of metals, whose electrical resistance changes when a voltage is applied – and they “remember” this change even when the power is turned off.

ReRAM chips promise significantly greater memory storage than current technology, such as the Flash memory used on USB sticks, and require much less energy and space. (more…)

Want to Avoid ED Following Prostate Surgery? Find an Experienced, Gentle Surgeon

By Guest PostMay 21, 2012Healtherectile dysfunction, erectile function, erectile potency, european urology, hua yu, jim hu, journal, mehrdad alemozaffar, nerve sparing techniques, non skin cancer, prostate cancer, prostate gland, radical prostatectomy, recovery, robotic assisted surgery, surgeon, surgical removal, therapeutic option, tudor borza, US

UCLA study quantifies learning curve for robotic-assisted surgery

Prostate cancer is the most commonly diagnosed non-skin cancer in the U.S., and radical prostatectomy, the surgical removal of the prostate gland, remains the most popular therapeutic option, accounting for half of treatments.

The procedure, however, is not without possible side effects, primarily erectile dysfunction and incontinence. But a good nerve-sparing surgical technique can lessen the likelihood of these undesirable outcomes, as can the skill and experience of the surgeon, according to a new UCLA study that focused on robotic-assisted prostate surgery.

The study findings are published in the June 2012 print edition of the international peer-reviewed journal European Urology. (more…)

Author Archives: Guest Post