Dr. Ghellai, who is also Acting Chairman of the Department of Surgery, holds a diploma [...]]]>

Tawam Hospital, in affiliation with Johns Hopkins Medicine, has appointed Dr. Ali Ghellai Jr. as Chief of the General Surgery Division and Dr. Zuhair Shihab as Chief of the Pediatric Intensive Care Unit (PICU), in the Department of Critical Care Medicine.

Dr. Ghellai, who is also Acting Chairman of the Department of Surgery, holds a diploma of the American Board of Surgery and is a Fellow of the American College of Surgeons. He previously served as Chairman of Minimally Invasive Surgery at Mafraq Hospital, Abu Dhabi, with additional responsibilities as Site Director for General Surgery Residency, Surgical Internship and the Gulf Medical Students Clerkship.

In his early career, Dr Ghellai was a prodigious student at many leading international institutions; he undertook fellowship training in advanced hepatobiliary and pancreatic surgery and solid organ transplantation at the University of Rochester School of Medicine and Dentistry, (USA), and has become a highly respected mentor in his own right.

As a Clinical Assistant Professor of Surgery at the State University of New York Upstate Medical University State, he received three awards as Best Student-Teacher and Best Resident-Teacher. He is an invited examiner in several medical schools and has presented more than 70 lectures and 20 surgical video presentations at high-level international meetings.

Dr Shihab, who takes over as Chief of PICU Division, has double German Board Certification, both in Pediatrics and Neonatology. He worked previously for several years at Mannheim University Hospital in Germany. Dr. Shihab has been working as Neonatologist and Consultant Pediatric Intensivist at Tawam Hospital for the last five years.

Dr. Shihab has also written highly acclaimed academic publications and is heavily involved in researching diseases in infants and medical education.

Tawam is managed by Johns Hopkins Medicine International and owned and operated by SEHA, the Abu Dhabi Health Services Company, which is responsible for the curative activities of all the public hospitals and clinics in the Emirate of Abu Dhabi.

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Dr. Ghellai, who is also Acting Chairman of the Department of Surgery, holds a diploma of the [...]]]>

Tawam Hospital, affiliated with Johns Hopkins Medicine, appointed Dr. Ali Ghellai Jr. as Chief of the General Surgery Division and Dr. Zuhair Shihab as Chief of the Pediatric Intensive Care Unit (PICU), in the Department of Critical Care Medicine.

Dr. Ghellai, who is also Acting Chairman of the Department of Surgery, holds a diploma of the American Board of Surgery and is a Fellow of the American College of Surgeons. He previously served as Chairman of Minimally Invasive Surgery at Mafraq Hospital, Abu Dhabi, with additional responsibilities as Site Director for General Surgery Residency, Surgical Internship and the Gulf Medical Students Clerkship.

As a Clinical Assistant Professor of Surgery at the State University of New York Upstate Medical University State, he received three awards as Best Student-Teacher and Best Resident-Teacher. He is an invited examiner in several medical schools and has presented more than 70 lectures and 20 surgical video presentations at high-level international meetings.

Dr Shihab, who takes over as Chief of PICU Division, has double German Board Certification, both in Pediatrics and Neonatology. He worked previously for several years at Mannheim University Hospital in Germany. Dr. Shihab has been working as Neonatologist and Consultant Pediatric Intensivist at Tawam Hospital for the last five years.

Dr. Shihab has also written highly acclaimed academic publications and is heavily involved in researching diseases in infants and medical education.

Gregory Schaffer, Chief Executive Officer of Tawam Hospital described the new appointments as an inspiration: “Both Dr Ghellai and Dr Shihab have tremendous reputations as men who are totally dedicated to their work. They are hugely experienced and have a passion for their respective fields. Ali Ghellai has an unrivalled range of knowledge and a thirst for even more and I know that is something which will influence all those who work alongside him. His enthusiasm is contagious.

“We have known Zuhair Shihab for a long time now. He’s an outstanding Pediatric Intensivist with great experience and his dedication and his leadership skills are second to none. Zuhair is an enormous asset to the organization and a good friend to his colleagues. We’re extremely privileged to have them both.”

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Dr. Latha Bimal, Obstetrician [...]]]>

uniCare Medical Centre launched an innovative continuing medical education programme last year, and is taking its expertise outside the clinic. The interface aimed at enhancing the quality of care provided at the clinic by developing and implementing strategies to identify and narrow gaps between current and optimal clinical performance and patient outcomes.

Dr. Latha Bimal, Obstetrician and Gynaecologist at uniCare will be hosting an awareness and information session on Cervical Cancer on Tuesday 23rd February between 4 pm – 5 pm for the employees of Union National Bank and interested members of the general public.

“The incidence of cervical cancer is increasing at an alarming rate and as medical professionals it is imperative that we educate as many members of the community as possible about this disease and others, their prevention and cure,” said Dr.Latha.

“This is why we launched Interface but we realize that due to busy schedules not everyone can attend a one-off session. It is with this in mind that we’ve decided to work with corporate clients and take Interface outside the clinic starting this week with Union National Bank,” she added.

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Based in Dubai, it will offer both international and local accredited courses for all medical practitioners in the UAE and the Gulf Co-operation Council (GCC). It is scheduled [...]]]>

Dubai Healthcare Authority), Active-M Group and Royal Philips Electronics, yesterday announced a joint venture to develop a framework for delivering and marketing a Continuous Medical Education (CME) academy.

Based in Dubai, it will offer both international and local accredited courses for all medical practitioners in the UAE and the Gulf Co-operation Council (GCC). It is scheduled to open in six months.

Dr Khalil Qayed, DHA’s Director of Medical Education, said: “This is a great opportunity for the medical community to upgrade their knowledge and skills and to get in touch with high-calibre scientists and experts to exchange their expertise. Such a platform, whereby the private and the public sector work together for the benefit of the medical community, is part of the DHA’s strategy as we believe that the private sector is one of our key stakeholders.”

Active-M, a venture capital investment and advisory company, will finance and fully manage the joint venture. Active-M will co-ordinate between the different parties to ensure delivery on the agreed strategy.

“We live in a highly demanding healthcare services community due to the high population growth, said Salam Saadeh, CEO of the Active-M Group.

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1. Slide microscope 2. Stereo microscope 3. Digital microscope 4. 3D Digital microsocope 5. USB microscope 6. Transmission electron microscope 7. Scanning electron microscope 8. Scanning probe microscope

1) Slide microscope

* Magnification: Uses lenses arranged in series, made of optical material that bends light. All magnification takes place via lenses. Uses diascopic illumination (that is, light is transmitted through the [...]]]>

Types of Microscopes Compared

1. Slide microscope
2. Stereo microscope
3. Digital microscope
4. 3D Digital microsocope
5. USB microscope
6. Transmission electron microscope
7. Scanning electron microscope
8. Scanning probe microscope

1) Slide microscope

* Magnification: Uses lenses arranged in series, made of optical material that bends light. All magnification takes place via lenses. Uses diascopic illumination (that is, light is transmitted through the specimen). Magnification up to about 1000x.
* Depth of field: Small.
* Uses: Pathology, microbiology, forensics, education
* Advantages: Color viewing. Require no electricity except for the light source. Can be used on living samples. Simple models are relatively common and inexpensive.
* Disadvantages: Usually requires prepared slides and cannot examine objects well in three dimensions.

2) Stereo microscope, also known as a dissecting microscope

* Magnification: As in a slide microscope, but arranged in two optical paths at slightly different angles to allow the user to view objects in three dimensions. Uses episcopic illumination (light is reflected from the specimen’s surface). Maximum useful magnification is about 100x.
* Depth of field: Large.
* Uses: Microsurgery, fine repair, dissection, paleontology, quality control, sorting, forensics.
* Advantages: Color viewing. Can be used on living samples. Requires little or no preparation of the sample.
* Disadvantages: Low magnification.

3) Digital microscope

* Magnification: Uses both optical lenses and CCD or CMOS sensors; up to at least 1000x magnification.
* Depth of field: Like a regular slide microscope.
* Uses: All the uses of slide microscopes. Especially useful for applications requiring digital information exchange such as telepathology and continuing medical education.
* Advantages: All the advantages of slide microscopes, plus the ability to create “virtual slides” and digital information sharing.
* Disadvantages: Requires a power source to operate. Most also require a computer, although some include their own viewscreens.

4) 3D digital microscope

* Magnification: Works like a regular digital microscope to achieve up to 1000x magnification.
* Depth of field: Large, up to 20 times greater than that of a slide microscope.
* Uses: All the uses of other digital microscopes, as well as parts machining, materials science, and additional applications.
* Advantages: Object can be viewed from almost any angle and its three-dimensional features can be examined.
* Disadvantages: As with regular digital microscopes. Can be expensive.

5) USB microscope

* Magnification: Up to 200x.
* Depth of field: Relatively small.
* Uses: Document examination, detail work, hobbies, education, entertainment
* Advantages: Can be used on almost any object and requires no preparation of the specimen. Inexpensive. Can usually be purchased for under $130 USD.
* Disadvantages: Not well suited to the same scientific applications as other optical microscopes.

6) Transmission electron microscope

* Magnification: A series of electrostatic and electromagnetic lenses act on an electron beam to produce up to 50 million times magnification
* Depth of field: Very small.
* Uses: Microbiology, pathology, crystallography
* Advantages: Very high resolution.
* Disadvantages: Requires extensive specimen preparation, including staining and sectioning with an ultramicrotome. Cannot observe the surface of objects.Very specialized equipment that requires a partial vacuum.

7) Scanning electron microscope

* Magnification: Electrostatic and electromagnetic lenses, as with a TEM. Magnification ranges from 25x to 250,000x.
* Depth of field: Large compared to that of a transmission electron microscope.
* Uses: Biology, microbiology, geology, nanotechnology, crystallography
* Advantages: Can view objects’ three-dimensional surface. Also, an SEM can provide information about the specimen’s elemental composition.
* Disadvantages: As with TEM, requires specialized equipment and a partial vacuum. Cannot be used on living specimens.

Scanning probe microscope

* Magnification: Uses no lenses at all. Instead, the image is formed by making physical contact with a specimen with a probe, which moves across the specimen in a raster pattern. Scanning probe microscopes can detect features as small as a few picometers in width. (A picometer is a trillionth of a meter, or a thousandth of a nanometer.)
* Depth of field: Varies according to technique.
* Uses: Nanotechnology, biology, microbiology, molecular biology, pathology, food research
* Advantages: Unparalleled resolution. The physical interaction between the probe and specimen can be used to change the specimen, for example by etching it, in a process called nanolithography.
* Disadvantages: Image acquisition is slow and the image size is small. Solid-solid and liquid-liquid interfaces provide a challenge.

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