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Rice U research sheds light on Amazon vs. Wal-Mart competition

Researchers at Rice University found that consistent superior e-service quality is key to winning the e-commerce battle between Amazon and Wal-Mart. The study identified four core dimensions of e-service quality, including website design, fulfilment, customer service, and security/privacy, which strongly impact overall e-service quality.

SourceRice University·JournalJournal of Retailing·DateJul 14, 2015

Heat buckyballs to help environment

Researchers at Rice University have made a breakthrough in developing tunable carbon-capture materials by heating buckyballs to alter their properties. This process enables the creation of materials that can selectively capture carbon dioxide from various sources, including industrial flue gases and natural-gas wells.

SourceRice University·JournalEnergy & Fuels·DateJul 13, 2015

Hybrid cells cause chaos around cancers

Rice University researchers created a detailed model of cell signaling in blood vessels that feed tumors. The study found that jagged ligands play a major role in the chaotic vessel growth observed around tumors, suggesting that suppressing notch-jagged signaling may disrupt tumor angiogenesis.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateJul 8, 2015

Smartphones may be detrimental to learning process

A Rice University study found that smartphone users believed smartphones would improve their academic performance but ultimately reported detrimental effects on their ability to learn. The study suggests that providing access to smartphones without specific directed learning activities can be counterproductive to the learning process.

SourceRice University·JournalBritish Journal of Educational Technology·DateJul 7, 2015

Customer commitment has many faces, differs globally

Researchers tested a five-dimensional commitment model, finding that affective commitment is the single largest contributor to customer loyalty. Habitual commitment also plays a significant role, with increased usage leading to developed habits and regimes that build commitment. The study provides insights into the nuanced ways custome...

SourceRice University·JournalJournal of Service Research·DateJul 7, 2015

Gas sensors promise advances in Earth science

Researchers at Rice University are developing gas-releasing microbial sensors to study microbe-driven processes that regulate Earth's environment. The sensors will allow researchers to test hypotheses about how microbes control environmental processes and build model ecosystems in the lab.

Graphene flexes its electronic muscles

Researchers at Rice University have discovered that graphene can be controlled by twisting it, creating an electronic flexoelectric effect. This property can be manipulated to vary the work function and engineer the band-structure stacking in bilayers or multiple layers.

SourceRice University·JournalThe Journal of Physical Chemistry Letters·DateJun 30, 2015

Legacy of slavery still impacts education in the south

A new study by Rice University found that the legacy of slavery contributes to black-white education disparities through greater public-private school racial segregation. The research also shows a correlation between historical geographic slave concentration and modern-day K-12 school segregation, with white students being underreprese...

SourceRice University·JournalSociology of Race and Ethnicity·DateJun 22, 2015

Researchers grind nanotubes to get nanoribbons

Rice University researchers have developed a new method to create valuable graphene nanoribbons by grinding carbon nanotubes, eliminating the need for harsh chemical solutions. This solid-state process enables strong chemical coupling between nanostructures and produces novel forms of nanostructured products with specific properties.

SourceRice University·JournalNature Communications·DateJun 15, 2015

Hyperbaric hope for fibromyalgia sufferers

A clinical trial involving women diagnosed with fibromyalgia showed significant improvements in symptoms after undergoing hyperbaric oxygen therapy. Brain scans revealed changes in brain activity that may be responsible for the syndrome's chronic pain sensation.

SourceRice University·JournalPLOS ONE·DateJun 2, 2015

Ancient algae found deep in tropical glacier

Scientists from Rice University, Ohio State and Nebraska discovered diatoms in glacial ice from tropical regions, offering insights into conditions around the Andes when they were deposited. The study's findings suggest freshwater lakes or wetlands existed at high elevations on or near the mountain in earlier times.

People tend to locate the self in the brain or the heart

A recent study published by Rice University researchers found that individuals generally prefer to locate their sense of self in the brain. This preference is stronger among those with an independent self-construal, who tend to assert autonomous goals and behaviors related to the brain. In contrast, people with an interdependent self-c...

SourceRice University·JournalOrganizational Behavior and Human Decision Processes·DateMay 20, 2015

Seashell strength inspires stress tests

Researchers at Rice University and Indian Institute of Science model seashells' ability to withstand pressure, discovering evolutionary optimization allows fractures to appear only where they're least likely to hurt the animal inside. The team found complex shapes make shells nearly twice as good at bearing loads than nacre alone.

SourceRice University·JournalScience Advances·DateMay 19, 2015

New shortcut to solar cells

Researchers at Rice University have discovered a way to simplify the manufacture of solar cells by employing electrodes as catalysts to create black silicon. The new process enables the production of black silicon with high efficiency and reflects little light, allowing more sunlight to reach the active elements of solar cells.

SourceRice University·JournalACS Applied Materials & Interfaces·DateMay 13, 2015

From brittle to plastic in 1 breath

Researchers at Rice University have found ways to make 2D molybdenum disulfide exhibit superplasticity by manipulating its gas environment, allowing it to deform without breaking. This breakthrough opens the possibility of tailoring the plastic properties of these materials for specific applications.

SourceRice University·JournalNano Letters·DateMay 4, 2015

Chromosome-folding theory shows promise

Researchers at Rice University have developed a new theory on chromosome folding, which is crucial for understanding gene regulation and other biological processes. The theory predicts the folding mechanisms and resulting structures of chromosomes using statistical tools and energy landscapes.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateApr 29, 2015

New tactic targets brain tumors

A new study from Rice University suggests that therapies targeting the insulin signaling pathway in brain tumors may be ineffective if they target the wrong molecules. Researchers found that glioblastomas, the deadliest form of brain cancer, have a complex relationship with insulin and other growth factors.

SourceRice University·JournalPLOS Computational Biology·DateApr 20, 2015

Nanotubes with 2 walls have singular qualities

Rice University researchers discovered that double-walled carbon nanotubes can be tuned for specific electronic properties by controlling their configuration and distance between walls. The study found that combining metallic with semiconducting nanotubes could lead to the creation of nanotube transistors.

SourceRice University·JournalNanotechnology·DateApr 16, 2015

Cobalt film a clean-fuel find

Researchers at Rice University have discovered a cobalt-based thin film that can produce both hydrogen and oxygen from water to feed fuel cells. The film is highly porous, inexpensive, and scalable, making it a potential alternative to expensive metals like platinum in water-electrolysis devices.

SourceRice University·JournalAdvanced Materials·DateApr 15, 2015

Amniotic stem cells demonstrate healing potential

Rice University and Texas Children's Hospital scientists successfully used amniotic stem cells to promote blood vessel growth in hydrogels, enhancing tissue repair for infants with birth defects. The study paves the way for biocompatible patches for congenital heart defects.

SourceRice University·JournalJournal of Biomedical Materials Research Part A·DateApr 9, 2015

Water makes wires even more nano

Rice University scientists have developed a technique called meniscus-mask lithography to create sub-10 nanometer wide wires from various materials. The method uses the curvy surface of water as a mask, enabling the production of ultra-nano structures that are crucial for miniaturizing electronic devices.

SourceRice University·JournalNano Letters·DateApr 6, 2015

Cells exercise suboptimal strategy to survive

A new study published in BMC Systems Biology uses computational method corsoFBA to model cellular metabolism and discover how organisms adapt to changing environments. The researchers, led by Amina Qutub, aim to develop new treatments for diseases such as stroke and cancer.

SourceRice University·JournalBMC Systems Biology·DateApr 6, 2015

How do you feel? Video of your face may tell all

Rice University engineers create a highly accurate, touch-free system that analyzes subtle changes in skin color to monitor patients' vital signs. The technique overcomes challenges of low-light conditions, dark skin tones and movement by averaging skin-color change signals from different face regions.

SourceRice University·JournalBiomedical Optics Express·DateApr 6, 2015

Rice fine-tunes quantum dots from coal

Researchers at Rice University have developed a method to control the size-dependent band gap of coal-based graphene quantum dots, enabling specific semiconducting properties. The new process uses ultrafiltration or direct control of reaction temperature, producing smaller dots with different optical and electronic properties.

SourceRice University·JournalACS Applied Materials & Interfaces·DateMar 18, 2015

How planthoppers got their wings

Brown planthoppers develop short wings for breeding and long wings for travel due to insulin receptor silencing, a major factor in their pest status. Researchers found that two insulin receptors determine alternative wing morphs in planthoppers.

SourceDuke University·JournalNature·DateMar 18, 2015

Maps predict strength of structures

Rice researchers Rouzbeh Shahsavari and Navid Sakhavand have created universal maps that predict the properties of natural and biomimetic platelet-matrix composites. The maps are dimensionless and can be applied to materials built with nanoscale blocks as well as brick walls, or bigger.

SourceRice University·JournalNature Communications·DateMar 16, 2015

Designing a better way to study stomach flu

A team of researchers is working on a five-year program to create a bioreactor that more closely simulates the complex tissues and dynamic movements of the intestinal track. This project aims to deliver a simple, easy-to-use and relatively inexpensive system for infectious disease labs.

Symmetry matters in graphene growth

The study found that geometric relationships between graphene and the substrate determine island shapes, with triangular surfaces leading to more irregular structures. Understanding this process can help design grain boundaries with specific properties, useful for electronics applications.

SourceRice University·JournalPhysical Review Letters·DateMar 16, 2015

Asphaltene analysis takes a giant step

Asphaltene analysis takes a giant step with the development of an indirect method that detects and measures particles as small as 100 nanometers. This technique can accurately quantify asphaltene precipitation and account for water presence, offering valuable insights into preventing clogs in oil production lines.

SourceRice University·JournalEnergy & Fuels·DateFeb 24, 2015

Buckyballs offer environmental benefits

Researchers at Rice University have discovered that treated carbon-60 molecules can remove metals from water and other liquids, with the ability to reserve them for future use. The process also shows promise for separating specific metals from complex fluids, potentially addressing contaminated water issues.

SourceRice University·JournalDalton Transactions·DateFeb 9, 2015