Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Vibrational Spectroscopy of Linear Molecules
To determine the vibrational spectroscopy of linear molecules, the rotation and vibration of linear molecules are taken into account to predict which vibrational (normal) modes are active in the infrared spectrum and the Raman spectrum.
  • 538
  • 11 Nov 2022
Topic Review
Vibrational Spectroscopy
Vibrational spectroscopy, as a label-free, non-invasive and non-destructive analytical technique, is a valuable technique which can provide detailed biochemical fingerprint information, based on the structure of the molecular constituents, for analysis of cells, tissues, and body fluids.
  • 1.0K
  • 05 Feb 2021
Topic Review
Vibrational Spectroscopic Approaches in Phytochrome Research
Phytochromes are biological photoswitches that translate light into physiological functions. Spectroscopic techniques are essential tools for molecular research into these photoreceptors.
  • 272
  • 30 Jun 2023
Topic Review
Vibrational Imaging Techniques and Hard Dental Tissues
Raman Microspectroscopy (RMS) represents an innovative tool to in vitro situation hard dental tissues. In fact, this vibrational technique has the advantage of providing, at the same time and on the same sample, a morpho-chemical correlation between the microscopic information from the visual analysis of the sample and its chemical and macromolecular composition. Moreover, thanks to the light scattering, it is possible to simultaneously perform the imaging analysis of both the inorganic and organic components of teeth, at a high spatial resolution level and in a confocal mode. The identification of specific Raman markers representative of sound and pathological hard dental tissues is crucial to improve the diagnosis of several dental pathologies and to detect dental lesions at an early stage when they are not visually detectable .
  • 710
  • 25 Apr 2022
Topic Review
Vibrational Coherence in MMLCT and MC Excited State
There have been significant advancements in the investigation of coherence-related phenomena in organic systems such as biological photosynthetic reaction centers. The d8 Pt(II) dinuclear complex or molecular aggregate with a metal–metal-to-ligand charge transfer (MMLCT) or metal-centered (MC) excited state was reported to show the vibrational coherence phenomenon in the intersystem crossing (ISC) process, due to the Metal–metal (M-M) interaction at excited state.
  • 318
  • 24 Nov 2023
Topic Review
Vibrational Biospectroscopy for Endometrial Cancer Diagnosis and Screening
Endometrial cancer (EC) is the sixth most common cancer and the fourth leading cause of death among women worldwide. Early detection and treatment are associated with a favourable prognosis and reduction in mortality. Unlike other common cancers, however, screening strategies lack the required sensitivity, specificity and accuracy to be successfully implemented in clinical practice and current diagnostic approaches are invasive, costly and time consuming. Such limitations highlight the unmet need to develop diagnostic and screening alternatives for EC, which should be accurate, rapid, minimally invasive and cost-effective. Vibrational spectroscopic techniques, Mid-Infrared Absorption Spectroscopy and Raman, exploit the atomic vibrational absorption induced by interaction of light and a biological sample, to generate a unique spectral response: a “biochemical fingerprint”. These are non-destructive techniques and, combined with multivariate statistical analysis, have been shown over the last decade to provide discrimination between cancerous and healthy samples, demonstrating a promising role in both cancer screening and diagnosis. 
  • 468
  • 18 May 2022
Topic Review Peer Reviewed
Vibration-Assisted Ball Burnishing
Vibration-Assisted Ball Burnishing is a finishing processed based on plastic deformation by means of a preloaded ball on a certain surface that rolls over it following a certain trajectory previously programmed while vibrating vertically. The dynamics of the process are based on the activation of the acoustoplastic effect on the material by means of the vibratory signal transmitted through the material lattice as a consequence of the mentioned oscillation of the ball. Materials processed by VABB show a modified surface in terms of topology distribution and scale, superior if compared to the results of the non-assisted process. Subgrain formation one of the main drivers that explain the change in hardness and residual stress resulting from the process.
  • 1.8K
  • 13 Apr 2022
Topic Review
Vibration Shaker Table
vibration table testing is a type of test equipment widely used in the engineering field to simulate the vibration in a real environment to evaluate the reliability and durability of a product. The following are the most commonly used application areas of vibration shaker table including but not limited to: Automotive industry: Used to test the durability and reliability of automotive components, body structures and complete vehicles. Aerospace industry: Used to test the vibration performance of aerospace components, aircraft engines and aerospace spacecraft. Electronic products industry: Used to test the vibration performance of electronic products, such as mobile phones, tablets and computer hard drives. Construction engineering: Used to test the vibration performance of building materials, structures and equipment to ensure that they meet safety standards.  
  • 41
  • 26 Aug 2024
Topic Review
Vibration Monitoring for Hay Rotary Tedder
Vibration monitoring provides a good-quality source of information about the health condition of machines, and it is often based on the use of accelerometers. Mechanical vibration transducers are used to receive a mechanical signal from a vibrating object and convert it into an electrical signal. This signal is properly processed. A measurement system includes a vibration transducer, for instance, a piezoelectric transducer, and an appropriate amplifier. Mechanical vibration measurement systems measure the vibrations produced by machines as well as the vibrations of buildings or bridges. 
  • 458
  • 21 Jun 2022
Topic Review
Viable but Non-Culturable Listeria monocytogenes
The detection, enumeration, and virulence potential of viable but non-culturable (VBNC) pathogens continues to be a topic of discussion. While there is a lack of definitive evidence that VBNC Listeria monocytogenes (Lm) pose a public health risk, recent studies suggest that Lm in its VBNC state remains virulent. VBNC bacteria cannot be enumerated by traditional plating methods, so the results from routine Lm testing may not demonstrate a sample’s true hazard to public health. We suggest that supplementing routine Lm testing methods with methods designed to enumerate VBNC cells may more accurately represent the true level of risk.
  • 525
  • 13 Feb 2021
  • Page
  • of
  • 5495
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
ScholarVision Creations
Feedback