Expert Assistance in Optometry


The time is to think beyond component sourcing with next generation optical element design and complete prototyping services. The expertise of electronic design professionals has simplified the opto-mechanical systems to a great extent. Apart from quality, the cost of products is another most important consideration while someone opts for the supplies from optical manufacturers. And, that is the reason why it is essential to come up with quality assurance keeping the dexterity within budget. Not only the companies, but nowadays the individuals with requirements for lens design are involving the professional consultants to simplify their tasks. Let’s find how the lens design consultants are actually contributing in the biomedical industry! With advancement of biotechnology, the laser scanning system requires non-contact measurement with superior sensitivity in addition to the microarray images in high resolution. Besides, in metrological practice, the microarray biochip images essentially need ultra wave sensor or optical detector in the imaging system. In order to perfectly address such advanced biomedical needs, the development of micro-meter focusing, and scanning lenses are now in practice. An electronic design consultant works with the customer specific development protocols to come up with highly tailored solutions, which in turn enable the company to provide with cutting edge metrology tools at appreciably lower prices. The biomedical instruments such as microscope, mass spectroscope, blood gas analysis system, and others extensively use illumination and micro imaging systems. In non-contact metrology, the unique property of telecentric lens is used by the professional lens designers. The lens characteristically maintains constant magnification over a specific range of object distance. A lens design consultant suggests using this mechanism to get accurate dimensional measurement, especially for the inspection of three dimensional or 3D objects. The concept is not really that new but has recently been implemented in optical metrology to avoid inherent distortions and attain optimum accuracy. However, it is difficult if not impossible to get the accuracy in measuring the object’s position, length and straightness if the defined telecentric depth is not maintained. The professional electronic design consultants serve their customers, individuals and companies whoever require the expertise, with advanced techniques and technologies. They mostly provide with complete subsystem production and prototyping solutions for a variety of devices. Precision is accomplished by using state of the art engineering tools and devices. Their keen observation to the minute details of opto-mechanical systems enables the manufacturers and users to answer many important questions about the structures and functions of the devices more efficiently. No matter whether it is a small or high volume production, the consultants are there to support the ventures from every possible aspect. Starting from simple optical sub-assemblies to the design and development of next generation metrology tools, a professional electronic design consultant can help materializing the ideas with great precision. However, one cannot expect the superior quality service from just about any consultant or service providers as the skill set depends solely on reflective knowledge and profound experience. However, not to worry, a little Google search should yield the options to attain ultimate optometric solution from the renowned experts.

CAS Dataloggers Introduces Pharmaceutical Temperature Monitor


Accsense Cloud-Based Wireless Solution Monitors Medical FreezersCHESTERLAND OH-March 14, 2012Pharmacies across the country constantly work to comply with increasingly demanding FDA regulations, especially 21-CFR part 11, in the storage of their temperature-sensitive life science products. Unfortunately, medical freezers often fluctuate in temperature due to uneven cooling and prolonged door opening among other causes, and these risks can be tough for staff to identify–is the door opening too frequently or is something else to blame? CAS DataLoggers now offers pharmacies an ideal solution with the Accsense A1-08 Wireless Temperature Data Logger, an automated wireless temperature monitoring and alarming system designed to protect customers’ life science materials. This wireless pod can connect to 6 NTC thermistor inputs monitoring at the critical -40??C (-40??F) range, significantly reducing user cost per measurement. The Accsense system provides users with cloud-based data storage and reporting and also serves as a convenient temperature alarm system complete with email, pager, and phone alert capabilities. Combined with the Accsense B1-06 Wireless Data Logger Gateway, these cost-effective data loggers offer customers a complete wireless monitoring system with the ability to view and remotely access data in real-time, transmitting recorded temperature data online for easy storage and analysis. Accsense automated monitoring eliminates the need for manual recording and is much less expensive, more reliable, and offers more data storage and regulatory documentation.The wireless pod’s internal ambient temperature sensor has a temperature range of -40??C to +70??C (-40??F to 158??F), and features 6 NTC thermistor inputs monitoring across -40??C to +112??C (-40??F to 233??F). Offering 2 digital inputs, the A1-08 pod can be connected to a wide variety of digital sensors to provide effortless and dependable online monitoring, including alarms indicating when the freezer is open. Offering pinpoint data logging accuracy to protect valuable samples and goods, all the Accsense system’s temperature measurements are made at a highly precise 0.1??C resolution, and the user-set sampling rate can be anywhere from 30 seconds to every 24 hours. In this way, intelligent alarms can be configured to trigger if 3 samples in a row see that the door is open; alternately, alarms can be set to trigger when only 1 sample reveals an open door. To deal with sudden power outages, each pod has an emergency buffer of 250 samples per sensor. The multi-thermistor pod’s range extends out to 250 ft. outdoors and 90 ft. indoors without obstructions, and the datalogger can run on either battery or AC power.The Accsense system’s advanced functionality offers users online graphing, reporting, and configuration features essential for compliance with 21-CFR part 11 and legal liability by closely monitoring and recording sensitive goods in storage. All the system requires is an RJ45 Ethernet connection with open internet access to start recording, entirely removing the need for troublesome installation and wiring. Accsense wireless dataloggers automatically send all recorded data to Rackspace, the manufacturer’s completely secure cloud server, where it is immediately stored and available using a backed-up online Accsense Account. Customers’ accounts give instant access to charts showing all measurement history with ranges as narrow as 5 minutes or as wide as 90 days, and also offer a customizable interface with a dashboard showing the most recent measurements from all sensor pods. Measurement data can also be downloaded for offline analysis. Since all the data instantly goes out to the Web, Accsense is the only system on the market that has virtually NO impact on the existing infrastructure, including server structure, IT overhead, and only a minimal impact on bandwidth.The wireless gateway includes FREE software and feature upgrades, with no software installation or firewall configuration required. Manual vertical scaling allows for consistency across multiple graphs and samples. Using an online account subscription with each gateway, users can plot measurement history and analyze tabular data. The secure servers can also send out configurable voice, text or email alarms (with premium subscription) to inform the supplier and authorized staff when a temperature reading falls out of range–the same alarm can even be sent to multiple locations! Additionally, data sent online can be downloaded as a CSV file and loaded into most database applications, and users can quickly download measurement data for offline analysis and grant password-protected, limited access to other operators. The gateway’s internal data storage can even compensate in the event of Internet outages. Using a standard web browser, users can sign in to access reports and graphs or modify the system configuration from anywhere an internet connection is available.Each A1-08 wireless pod comes delivered in a package containing an AC adapter, wall mounting and bracket, a standard antenna, 3 AA batteries, and more, providing a simple yet reliable temperature monitoring system.

The Pathfinder Biotechnology Institute in Delhi!


Biotechnology is a field of applied biology that involves the use of living organisms and bioprocesses on engineering, technology, medicine and other fields requiring bio-products. Biotechnology/Life sciences are amongst the leading and most significant applied sciences in today’s era. Biotechnology is one of the latest developed sciences and evolved on the basis of proteomics and genomics. It is a research oriented and firmemerging inter-disciplinary field. The Pathfinder academy provides you an opportunity to get involved with the latest developing sciences which is future promising too.Founded back in the year 2003, Pathfinder academy was a result of the travail of great visionary Mr. Pranay Kumar, scholar from JNU, New Delhi and visiting faculty Dept. of Biotechnology, Jamia Millia Islamia, New Delhi. It was established with the goal of providing a priceless opportunity to those aspirants who want a distinguished and shining future in biotechnology/life sciences.It was his ambition and toil that made Pathfinder Academy, a pioneer institute that is contributing the nation with coaching for biotechnology entrance examinations and CSIR-JRF-NET/GATE and help them seek admission in leading institutes for higher education with a strong established foundation. There is nothing that precludes us from being informed, modified, rendered, furnished and be up-to-date.At Pathfinder academy, we believe in application of biotechnology for the benefit of agronomy, environment, engineering and veterinary and human medications. For this, we develop mutually advantageous relationships with industry and concerned establishments to conduct research and economy transmission. As a personal responsibility towards society, we try to initiate and runinformative educational programs to ensure the large scale propagation of academic innovations to all strata of society. Pathfinder academy also takes various steps in promoting the education and training of biologists, engineers, agricultural personnel and medical technologists in the fields of genomic research, economic development and educational accessibility which are the pillars of biotechnology. We encourage our brilliant faculty, staff and aspiring scholars to exploit the extensive research amenities, interacting with commercial enterprises and provide them with wide variety of training services like Academic projects, Industrial training and workshops, etc.Biotechnology has proved to have incredible career prospects now and in future and Pathfinder welcomes you to interact and function in the most challenging and inviting discipline in sciences gaining both knowledge and career perspectives. For more details please visit:

Why so Many Research Chemicals?


We at Researchchemicals4u make no secret of the fact we have a wide variety of plant food chemicals, some of which, at first glance, seem remarkably similar. What, for example, is the difference between nrg-2 and nrg-3? Well, a chemist would say it??????s the R-groups ?????? the reactive part of the structure. NRG-2 is more potent than nrg-3, but acts in a different way.The reason these chemicals work at all is because they were originally developed to enhance neurotransmitter action in humans, and amazingly, plants have the same neurotransmitters – for example norepinephrine, dopamine and serotonin. Just as in mammals, norepinephrine is released in response to stress, forcing the plant to manufacture sugars and grow faster (the reason being, so it can propagate itself sooner ?????? the obvious way to escape danger is to grow somewhere else.) Serotonin is routinely produced in a range of plants including plantain, pineapple, banana, kiwifruit, plums, and tomatoes. It??????s also found in stinging nettles and tobacco plants, as well as some herbal remedies. However, its effect as a natural antidepressant is doubtful, as plant serotonin can??????t cross the blood-brain barrier.What is now known for certain is that when stimulated or stopped from being ??????switched off,?????? these transmitters have a beneficial effect on plant growth and propagation. It is for this reason that scientists buy NRG-3 ?????? to develop new plant foods. You may wonder why they don??????t just use NRG-2, as it??????s so potent. The reason is the same as for humans ?????? more isn??????t always a good thing.If plants are stimulated into growth too quickly, it places a heavy demand on nutrients in the soil. If these nutrients are readily available, the plant can suffer from ??????fertiliser burn?????? ?????? literally overdosing on soil chemicals. This can dry out the roots and even kill the plant. Sometimes, less potent research chemicals provide better results than highly active ones.

Improved Algorithm For Constructing The Structural Images of Biological Object in OCT


An improved algorithm of structural images of biological object for optical coherence tomography, which allows to increase the depth of coherent sensing and get a better quality picture. Optical coherence tomography (OCT) has emerged in the late eighties, early nineties of the twentieth century. [1] At the beginning of XXI century, it took its place in a number of medical diagnostic equipment. OCT uses optical signal reflected from the surfaces of different optical density, and in many ways is similar to ultrasound (U.S.) diagnosis. The probing depth of dense tissues OCT systems using wavelength ?? = 900 – 1300 nm, is 1-2 mm, which is significantly less than that of ultrasound systems [2, 3] and X-ray devices [4]. Due to the strong scattering of optical radiation in the dense biological tissues, OCT systems are used primarily for the study of the cornea, vitreous and retina. However, the resolution of OCT systems for one, two orders of magnitude higher resolution ultrasound systems for similar research, which is about 1 – 0.1 mm [2]. The aim of this work – to provide an improved algorithm for constructing the structural OCT images of biological object to allowing to increase the depth of coherent sensing and an image with high contrast and informative. Electrical signal received from the detectors OCT included in the balanced circuit, is amplified and digitized by the ADC mean intensity of the radiation reflected from the biological object. Preparation of 2-axis images of the interference signal is reduced to the construction of a spectrogram. The spectrogram is a function of two variables: time and frequency. That is, the interference signal as a function of one variable (time) is converted into a spectrogram is a function of two variables. To construct a spectrogram interference signal is divided into short time segments of equal length. Each of these segments is applied fast Fourier transform (STFT, among LabVIEW). At each of the segments of the spectrum is a complex-valued function of sample number (or time). It is known that a complex-valued function can not be built in one coordinate system in the plane. Therefore, the analysis of the spectrum usually build amplitude and phase spectra of any signal. The amplitude spectrum is a module of the complex spectrum and the phase – his argument. The spectrogram is a combination of the amplitude spectra, calculated on short segments, a function of two variables, or matrix. Similar treatment algorithm is shown in Figure 1. The algorithm can distinguish five fundamentally important stages: “Splitting the signal”, “Fourier transform”, “Isolation of the envelope”, “The logarithm of the envelope”, “Writing data to the matrix” Figure 1 – The processing algorithm of the electrical signal from the detectors optical coherence tomography The next stage of the signal processing is to use the fast Fourier transform to each segment. Since the path difference scanning interferometer arms varies continuously scanning optical delay line, theoretically window Fourier transform, must also move continuously at one point, but it makes the signal processing is quite long, on the order of minutes. Empirically, it has been shown that the signal processing is shifted to the window of 70-80% has the same contrast ratio as well as the continuous shift – to a point. It takes 2 – 5 seconds when using a computer with average parameters (single-core processor 2.4 GHz, 512 MB RAM). Using a powerful computer and specialized software, this time can be reduced to one second. This approach delivers images in real time and visual feedback when using live biomedical facility. Signal processing is shifted windows by 70-80% – is an important feature of our proposed treatment of the electrical signal. [5] The next stage of the signal processing is to separate the spectral envelope of the signal received by the Fourier transform of each segment. An important feature of the received signal is its symmetry with respect to zero,the optical path difference of the waves. This is explained by the fact that the result of the Fourier transform is complex function, the real part of which is symmetric, and the imaginary antisymmetric. Since in real applications is a real part of the signal or its magnitude, the reconstructed signal has a balanced view. In addition to the symmetry of the signal spectral OCT has another important feature – the imposition of a mirror of the complex conjugate signal. If the optical path difference between the reference wave and the wave of the biological object is zero useful signal is superimposed on the autocorrelation component, in which case there will be multiple image artifacts. This can be avoided by placing biological object so that his first boundary was removed from the position of zero path difference of the waves in the interferometer by an amount greater than the optical thickness of the object itself. [5] The next stage will be the logarithm of the envelope interference signal of each segment. It is necessary to correct symmetry. When logarithm removed part located below the zero path difference of the waves. The final step is to combine the processing of amplitude spectra, calculated on short segments in the matrix. The data basis for this matrix imaging. Literature

Advances in Acrp30 Antibody Research


Acrp30, familiarly known as adiponectin, is a member of the adipocytokine family – cytokines expressed specifically in the adipose tissue. Our antibody catalogue contains 24 adiponectin antibodies, proteins and lysates, which have come under the spotlight recently with respect to mitochondrial biogenesis.Acrp30 is known to positively regulate lipid and glucose metabolism. Adiponectin deficiency is connected to obesity resulting from dyslipidemia, insulin resistance and mitochondrial dysfunction. In 2003, Yamauchi et al identified two binding receptors, Adiponectin Receptor 1and 2 (Adipo R1/R2, also known as Adipor1/2). Further research revealed Adipo R1 is predominantly expressed in skeletal muscle, the body’s main site for the utilising of glucose.Recently, M. Iwabu et al published a paper confirming Adipor1 was integral to glucose tolerance and insulin sensitivity, using an Adipo R1-deficient mouse model (the muscle-Adipo R1KO strain). Exceptionally high levels of plasma glucose and insulin were revealed in vivo, while antibody assays revealed significant alterations in signalling molecules phosphorylated by insulin stimulation, among them p70 S6 kinase, IRS-1, Akt and JNK. Decreased activity of mitochondria-specific proteins, including the transcription factor PGC1, a regulator of mitochondrial biogenesis, were also noted. Other effects included enhanced oxidative stress in the muscle tissue, and impaired fatty acid oxidation. Despite the absence of Adipor1, some of these effects were partially overcome when muscle-Adipo R1KO mice were subjected to exercise, indicating exercise as a possible therapeutic tool in humans deficient in adiponectin.A number of in vitro knockdown studies, involving a number of antibodies, siRNAs and specific inhibitors, were then performed on normal mouse myocyes. It was seen that Adiponectin-induced mitochondrial biogenesis was reduced when Adipo R1, CAMKK beta, PGC1 alpha and AMPK alpha1/alpha 2 were inhibited. Also, PGC1 alpha expression was blocked when CAMKK beta and Adipo R1 were inhibited by siRNAs.The studies showed Adiponectin mediated extracellular calcium influx in normal cells. In the absence of Adipo R1 this mechanism was defective. It was suggested that Adiponectin-induced calcium influx is essential for activation of a signalling cascade, involving CaMKK beta, PGC1 alpha, AMPK and SIRT1, which ultimately promotes transcription of mitochondrial biogenesis proteins via the transcription factor PGC1.Studies continue into Adipor1 signalling and the calcium influx. We at Novus Biologicals have an extensive antibody catalog covering this area of research.

Are Algal Blooms Becoming Worse?


The problems associated with harmful algal bloom (HABs) have become tremendous, resulting to huge economic deficit and serious health issues. The accumulation of HABs in public and commercial water systems has been rampant, inflicting critical health and ecological problems among waterways and wetlands around the world.Most problems attached with HABs infestation are economic related which include lost of revenue, consumer fears, and shift in livelihoods. Almost $82 million loss has been recorded each year in United States alone due to the impact of harmful algae bloom. The total estimated deficit was taken from public health and commercial fisheries sectors in U.S. In 2005, New England’s economy was paralyzed due to Alexandrium fundyense bloom (commonly known as red tide). Closure of shellfish harvesting had been mandated to prevent the cases of shellfish poisoning, and this brought massive loss, approximately $18 million, in the shellfish industry. Texas did not escape the threat of algal bloom as the Karenia brevis outbreak caused chaos in the coastal waters. In the height of summer 2000, the fish kills spread in many areas in Texas which prompted the closure of shellfish harvesting, resulting to millions of deficit from fishery closures and costs from water cleanup.Toxic algal bloom is being feared for its damaging effects on commercial fisheries and marine environments. Algal bloom effects include the production of harmful toxins that are dangerous or fatal to humans and other organisms. Meanwhile, some species of algae can be non-toxic to humans and animals but adversely damage the ecosystem by forming large blooms that cover corals and the entire sea floor. Human health and ecosystem are at stake when HABs increase and remain untreated.So what is algal bloom? Some species of algae, including cyanobacteria, are responsible for blooms. Algal bloom happens when the population of algae increase rapidly, causing damaging effects to aquatic environments. Lakes, ponds, and slow-moving rivers are prone to algal bloom infestation.Algae bloom is a natural phenomenon that may arise invariably, depending on weather and water conditions. Blooms are widespread during summer or spring due to the sudden change in temperature. Most algal blooms crop up under favourable conditions: excess nutrients, direct heat, and high concentrations of phosphorus and nitrogen. However, human activity greatly contributes to the expansion of algae bloom. For example, in urban areas, the nutrients from septic tanks and sewage treatment plants can overflow and pollute the waterways or systems. Likewise, in rural areas, agricultural runoff from pesticides and other waste coming from fields may increase the pollution from water features such as lakes, rivers and estuaries.An algal bloom is also part of the natural aging process of lake. However, severe blooms occur when dead algae deplete the levels of oxygen in the water. In highly eutrophic lakes, algal blooms may lead to anoxia and fish kills during the summer.It is advisable to expedite the removal of HABS on commercial fisheries and other marine waters to prevent further damage. There are number of algae solutions formulated to treat and prevent algae infestation.

Radiology gets “Presidential” focus


If you were like most people not too long ago, you heard the news that former President Bill Clinton was admitted into the hospital with chest pains. Had it been a different era, hospital professionals would be faced with the real possibility of doing exploratory surgery on President Clinton. That procedure could very well cause death due to riskiness and exposure to germs. Yet, a mere 3 hours later, he had a simple procedure done and was released to recuperate at home. It’s amazing how far the healthcare industry has come, isn’t it? The fact that a president of our country who receives superior healthcare relied on the technology of radiology which is commonplace in hospitals makes an important statement as to the strides we have made.However, it is important to note that while radiology technology is crucial to diagnosing a health issue, there is one component that is even more important to recognize what keeps radiology results so accurate. Cleaning radiology equipment is crucial to producing clear images which is what diagnoses are made from.How do you keep equipment in top condition? The answer is simple, purchase radiology supplies to keep the equipment clean and in top working order. Let’s face it; the beauty of this technology is that something as detailed as a hairline fracture can be detected easily with these machines. If you neglect to properly care for these machines, simple diagnosis is lost and possible unnecessary surgery ensues. If you are a healthcare professional, be sure to keep a good inventory of radiology supplies on hand. You’ll be glad you did.

The Importance of Radiology Supplies


Healthcare has advanced by leaps and bounds and nowhere is it more apparent than in the field of radiology. Most people may associate a few key procedures with radiology, but the fact of the matter is that more advancement has been made in this field than patients realize.For example, when patients are admitted to the hospital with strange symptoms and doctors are unsure how to proceed, the next course of action was customary to perform “exploratory. Not only was this type of surgery painful but carried an unusually high risk for infection.Radiology has given the gift of protection as well as pin-pointing problems in a painless and precise procedure. It’s no wonder that hospitals, doctors, vets and other types of professionals and facilities utilize this medical invention. The types of medical problems that benefit from radiology can be: identifying cancer, problematic arteries with regard to heart function, broken bones and getting a look at an infant via an ultrasound.The key to this accurate medical procedure is keeping radiology supplies and equipment clean. There are quite a few radiology supplies that are required to do a proper job of evaluating health issues such as X-Ray equipment cleaner, Ultrasound paper, Disinfectant, Lighting, Mailing and filing envelopes, Marker sets, Towels, Wipes and Veterinary products as well. Proper cleaning of these radiology supplies eliminates the possibility of germs and provides a clear and clean view of an affected area. Whether radiology is used to check a problematic artery on a loved one or an expectant mother’s baby development, the benefits of using this technology is priceless.

Fingerprint Access Control


Passwords are still the weakest link in a security system. Biometric access control systems would have prevented the recent data breaches at Sony and Gawker.There are a plethora of examples one can give of security breaches where a company didn’t just incur millions of dollars in damage, they also lost the trust of their customers. Access control systems that still use the traditional password system are still in danger of security breaches that could happen at any time. Even in the face of such examples, companies still make simple mistakes like using weak passwords and not changing them often. According to some reports, more than 70% of security breaches are carried out with the help of an insider who exploits his or her access to service and administrative accounts even after they have left the company a long time ago.The recent security breaches at Sony and Gawker highlight the vulnerability of the password system. Phishing or key loggers can easily be used to steal the password, among various other methods that exist.Security experts say that an organization should have a more personalized and multilayered approach in order to make their valuable data more secure from cyber attacks. Furthermore, companies do not wish to cause any inconvenience to their users and employees and, therefore, do not take the steps necessary to ensure a more fool-proof security system. What is required is a security system that identifies a person instead of a code. This is where Biometric access control systems come into play, especially fingerprint access control systems.The use of such access control systems will guarantee that only the correct individual is identified and granted access to the system. Fingerprint access control systems save the unique fingerprint of a person in its database and grant access only to them. This is the most efficient manner in which the movement of people in a system can be monitored.A modern and technologically advanced fingerprint access control system is equipped with a scanner that captures a high resolution image of the fingerprint. These systems have gained acceptance in a number of places like banks, hospitals, etc. and are increasingly being used in place of password systems to mark attendance and grant access.