success

Celebrating Successful Members of the 1960s Debre Zeit: 

In this part of the web site, we present the highlights of some of the distinguished citizens who graduated from high school in Debre Zeit in 1970 and their offspring.  This group have experienced all the unique events and interesting features of Debre Zeit. For instance, this group have rebled against an elitist classroom assignment experiment where bright students were to be collected into one or two classrooms based on their reading ability; the first to be thought all subjects in Amharic in grade 5; take a national exam at grade six level. Before this group, national level exam was only conducted at grade 8 and grade 12 level. The grade 12 matriculation is required for admission to university.

While the most important asset of a place is its people, what the place offers can also impact the outcome of its citizens. Considering the state of the library, availability of books, state of science laboratory, Like the other Debre Zeit students before and after them, one can say the success of the 1970 graduate cohort is against all odds. One can say Debre Zeit is magical!

As a start, despite: limited number of schools; inadequate books; almost nonexistence of science laboratory; far distance students must travel to get to school; diversity of background of the population, especially urban and rural students, and not so high economic status of most of the families; it is a magic that a high proportion of the students succeeded.

Hence, Debre Zeit has contributed more than its fair share of successful people like Dr. Tebabu Tessema Wubetu and his friends. Some of the high achievers are highlighted below:

Dr. Tebabu Tessema Wubetu: Distinguished Obstetrician and Genecologist and Consultant in Industrial Medicine

Dr. Tebabu Tessema Wubetu attended elementary and Secondary schools at Atse Libnedingle elementary and Princess Tenagnework Secondary School (P.T.S.S) respectively. He graduated from high school with Great Distinction and enrolled in Haile Selassie I University (currently Addis Ababa University) during the 1970-71 academic year.

His academic achievements of great distinction have enabled him to win a one-year scholarship and a hand watch engraved with the name of the late Emperor from the Haile Selassie Awards for Excellence Organization.

After completing his freshman year at the Science Faculty at Arat Kilo Campus, in 1972 he was accepted by the medical school and commenced his medical training at the Prince Mekonnen Hospital now called the Black Lion Specialized Referral Hospital managed by the Addis Ababa University.

Following the 1974 political upheaval and subsequent campaign of red terror that was unleashed by the Socialist Military Regime (Derg), he was forced to join the armed struggle with the Ethiopian Peoples’ Revolutionary Party to establish democracy in Ethiopia.

Dr. Tebabu Tessema Wubetu was re-settled in the United Kingdom. In the United Kingdom, he resumed his medical training and in 1985 completed and registered to practice Medicine as obstetrician & gynecologists. Based on his distinguished work, Dr. Tebabu Tessema Wubetu's was elected as a Fellow of the Royal Physicians (FRCP) in 1990.

After a distinguished serves in his specialty, Dr. Tebabu Tessema Wubetu became a consultant in industrial medicine. In this new specialty, he extended his brilliant service until he retired in 2020.

He remained active in retirement serving as the founding chairman of Newcastle and surrounding area Ethiopian community; member of United Ethiopians for Peace and Reconciliation; as well as Director with the Northern Learning Trust.

Honoring his many years of outstanding and dedicated service, the Ethiopian community of Newcastle awarded Dr. Tebabu Tessema Wubetu a special honorary certificate.

Sadly Dr. Tebabu Tessema Wubetu unexpectedly and untimely passed away on November 30, 2021. He is dearly missed by all.  This website is one of the ways in which we keep him alive.

Dr. Admassu Abebe: Distinguished Industrial Pharmacist and Inventor

Dr Admassu Abebe is born in Debre Zeit. He attended elementary and High school in Debre Zeit. He completed his high school with Distinction in Debre Zeit in 1970. He attended Addis Abeba University and graduated from school of pharmacy with great distinction. He obtained his master's degree from England and completed his P.H.D in Industrial Pharmacy from University of Grenoble, France

 Dr. Admassu Abebe is a Senior Principal Scientist at Bristol-Myers Squibb based in New York City, New York.

Patents and Publications by Inventor Dr. Admassu Abebe  

Patent number: 9616028b

Abstract: The present invention relates to bilayer tablet formulations comprising metformin extended release (XR) or reduced mass metformin XR formulation as the first layer, an SGLT2 inhibitor formulation as the second layer, and optionally a film coating. The present invention provides methods of preparing the bilayer tablet formulations and methods of treating diseases or disorders associated with SGLT2 activity employing the bilayer tablet formulations.

Filed: May 7, 2015.     Type: Grant.        Date of Patent: April 11, 2017

Assignees: AstraZeneca AB, AstraZeneca UK Limited

Inventors: Admassu Abebe, Kyle Martin, Jatin M. Patel, Divyakant Desai, Peter Timmins

Bilayer tablet formulations

Patent number: 9050258

Abstract: The present invention relates to bilayer tablet formulations comprising metformin extended release (XR) or reduced mass metformin XR formulation as the first layer, an SGLT2 inhibitor formulation as the second layer, and optionally a film coating. The present invention provides methods of preparing the bilayer tablet formulations and methods of treating diseases or disorders associated with SGLT2 activity employing the bilayer tablet formulations.

Type: Grant.  Filed: August 13, 2013. Date of Patent: June 9, 2015

Assignee: AstraZeneca AB

Inventors: Admassu Abebe, Kyle Martin, Jatin M. Patel, Divyakant Desai, Peter Timmins

Bilayer tablet formulations

Patent number: 8535715

Abstract: The present invention relates to bilayer tablet formulations comprising metformin extended release (XR) or reduced mass metformin XR formulation as the first layer, an SGLT2 inhibitor formulation as the second layer, and optionally a film coating. The present invention provides methods of preparing the bilayer tablet formulations and methods of treating diseases or disorders associated with SGLT2 activity employing the bilayer tablet formulations.

Type: Grant.   Filed: November 12, 2010.  Date of Patent: September 17, 2013.

Assignees: Bristol-Myers Squibb Company, AstraZeneca UK Limited

Inventors: Admassu Abebe, Kyle Martin, Jatin M. Patel, Divyakant Desai, Peter Timmins

Dr. Admassu Abebe's research Publications:

Dr. Admassu Abebe's research while affiliated with Bristol-Myers Squibb and other places.

Number of Publications: 21

Few Examples:

Article: Evolution of the microstructure during the process of consolidation and bonding in soft granular solids, Feb 2016.

Authors: Bereket Yohannes, Gonzalez, Abebe[...], Alberto M Cuitiño

Abstract: The evolution of microstructure during powder compaction process was investigated using a discrete particle modeling, which accounts for particle size distribution and material properties, such as plasticity, elasticity, and inter-particle bonding. The material properties were calibrated based on powder compaction experiments and validated based on...

Article: The role of fine particles on compaction and tensile strength of pharmaceutical powders, Apr 2015.

Authors: Bereket Yohannes, Gonzalez, Abebe[...], Alberto M Cuitiño

Abstract: The role of fine particles on compaction of powders and the resultant compact was studied experimentally. Samples of powders were prepared by successively removing fine particles from microcrystalline cellulose and lactose monohydrate powders. This method of preparing samples is unique compared to previous studies on particle size distribution, and...

Article: Review of Bilayer Tablet Technology, Dec 2013.

Authors: Admassu Abebe, Ilgaz Akseli, Omar Sprockel[...], Alberto M Cuitiño

Abstract:  Therapeutic strategies based on oral delivery of bilayer (and multilayer) tablets is gaining more acceptance among brand and generic products due to a confluence of factors including advanced delivery strategies, patient compliance and combination therapy. Successful manufacturing of these ever more complex systems needs to overcome a series of cha...

Article: Axial strength test for round flat faced versus capsule shaped bilayer tablets, Nov 2013.

Authors: Jason Franck, Admassu Abebe, Rekha Keluskar[...], Howard Stamato

Abstract: There has been increasing interest in fixed dose combination (FDC) therapy. Multi-layer tablets are a popular choice among various technologies to deliver FDCs. In most cases, round flat faced tooling is used in testing tablets as they have the simplest geometry. However, shaped tooling is more common for commercial products and may have a...

Conference Paper: The Use of Foam in High Shear Wet Granulation: Effect of Scale up On Granules Quality Attributes, Nov 2010

Authors: Niranjan Kottala, Admassu Abebe, Faranak Nikfar[...], Robert Jerzewski

Abstract: High shear wet granulation is a common pharmaceutical unit operation for forming agglomerates. The API under study offered challenges during processing due to its low bulk density, low particle size, and its adhesive nature when in contact with water. To address the above challenges a new granulation process was employed whereby liquid binders are...

Dr. Taddesse Gebregiorgis: Distinguished Polymer Chemist and Inventor 

Dr. Taddesse was born and raised in Debre Zeit. He is one of the graduates of Prince Tenagework High school in 1970 in Debre Zeit.  His educational background includes: Bachelor of Science (BS) Organic Chemistry, The American University in Cairo, Egypt; PH.D Polymer Chemistry University of Essex, England; and Post Doctoral Fellowship Polymer Chemistry University of Grenoble, France

Dr. Taddesse was a Senior Research Associate with a demonstrated history of working in the chemicals industry. Skilled in Research and Development (R&D), Chemistry, Life Sciences, Polymers, and Organic Chemistry.

Patents and Inventions by Dr. Taddesse Gebregiorgis:

Anti-corrosion electrocoat

Patent number: 10358735

Abstract: The present disclosure relates to the application of anti-corrosion coatings for a ferrous substrate. The first coating applied to the ferrous substrate is an electrocoat composition comprising electrically conductive pigments. A dried a cured coating layer of the first electrocoat composition provides the basis for a second electrocoat composition.

Filed: May 23, 2012.  Type: Grant.  Date of Patent: July 23, 2019

Assignee: Axalta Coating Systems IP Co., LLC

Inventor: Taddesse Gebregiorgis

Method for using 3-coat-1-bake waterborne coating composition

Patent number: 9903021

Abstract: Disclosed herein is a method to apply waterborne primer, basecoat and clearcoat compositions in a wet-on-wet manner followed by the curing of all three applied compositions to form a durable protective coating on a substrate. The primer composition comprises (meth)acrylic latex, polyurethane resin, melamine and, optionally, polyesters.

Filed: December 29, 2009. Type: Grant. Date of Patent: February 27, 2018

Assignee: AXALTA COATINGS SYSTEMS IP CO., LLC

Inventors: Taddesse Gebregiorgis, Donald Albert Paquet, Jr.

Organic solvent free pigment dispersant for waterborne electrocoating

Patent number: 8236157

Abstract: A pigment dispersing resin is disclosed along with pigment dispersion, electrodepositable coating compositions using the pigment dispersing resin, and methods for applying the electrodepositable coating composition. The pigment dispersing resin consists essentially of the carboxylic acid salt of an aminated bisphenol epoxy resin and an alkoxylated styrenated phenol. Pigment dispersions made from the dispersing resin are especially useful for forming low or no volatile organic content electrocoating baths.

Filed: December 12, 2008. Type: Grant. Date of Patent: August 7, 2012

Assignee: E I du Pont de Nemours and Company

Inventor: Taddesse Gebregiorgis

Cathodic electrodeposited coatings having high lubricity

Patent number: 6114040

Abstract: Self-lubricating is provided for cathodic electrodeposited coatings by including in the coating bath fine particles of polytetrafluoroethylene that have been milled with a cationic polyepoxide resin.

Filed: September 9, 1998. Type: Grant. Date of Patent: September 5, 2000

Assignee: E. I. du Pont de Nemours and Company

Inventors: Taddesse Gebregiorgis, Kathleen S. Shields, John Joseph Vincent

Pigment dispersant for cathodic electrocoating compositions

Patent number: 5324756

Abstract: A pigment dispersant that is useful in a cathodic electrocoating composition is prepared by bringing into contact the following compounds: a cyclic alkylene urea amine, a polyepoxide and a dialkanol amine; this pigment dispersant has an advantage of allowing for the high pigment to binder ratios and minimizes the volatile organic content (VOC) in the electrocoating composition.

Filed: May 5, 1993. Type: Grant. Date of Patent: June 28, 1994.

Assignee: E. I. Du Pont de Nemours and Company

Inventor: Taddesse Gebregiorgis

Imidazoline amine-epoxy adduct as a pigment dispersant

Patent number: 5128393

Abstract: A pigment dispersant useful in cathodic electrocoat compositions is disclosed. The pigment dispersant is the reaction product of an organic monoepoxide or polyepoxide with a primary amine containing an imidazoline moiety. This pigment dispersant allows the maximazation of pigment to binder ratios and the minimization of volatile organic content (VOC) in electrocoat baths.

Filed: June 11, 1991. Type: Grant. Date of Patent: July 7, 1992.

Assignee: E. I. Du Pont de Nemours and Company

Inventors: Stephen C. Peng, Taddesse Gebregiorgis

Pigment dispersant resin: reaction product of imidazoline and alkylene carbonate adduct and a half blocked diisocyanate

Patent number: 5116903

Abstract: A pigment dispersant that is useful in a cathodic electrocoating composition is prepared by bringing into contact compound (i), an alkylene carbonate, with a compound (ii) of the structure: ##STR1## where R is and alkyl group .having 8-24 carbon atoms, and bringing the resulting reaction product of (i) and (ii) into contact with a half blocked organic diisocyanate; this pigment dispersant has an advantage of allowing for the maximization of pigment to binder ratios and the minimization of volatile organic content (VOC) in electrocoating compositions.

Filed: April 5, 1991. Type: Grant. Date of Patent: May 26, 1992.

Assignee: E. I. Du Pont de Nemours & Co.

Inventor: Taddesse Gebregiorgis

Pigment dispersant resin: reaction product of imidazoline amine and alkylene carbonate

Patent number: 4946507

Abstract: A pigment dispersant useful in cathodic electrocoat compositions is disclosed. This pigment dispersant is the reaction product of alkylene carbonate and a primary amine containing an imidazoline moiety. This pigment dispersant allows the maximazation of pigment to binder ratios and the minimization of volatile organic content (VOC) in electrocoat baths.

Filed: July 12, 1989. Type: Grant. Date of Patent: August 7, 1990

Assignee: E. I. Du Pont de Nemours and Company

Inventors: Stephen C. Peng, Taddesse Gebregiorgis

Professor Dr. Brook Lemma Mamaru: Distinguished Freshwater Ecologist and Fishery Expert.

Dr. Brook Lemma Mamaru attended Atse Libne Dingle elementary school and up to grade 10 high school in Debre Zeit. He graduated in 1970 from Shimeles Habte high school in Addis Ababa. He attended Addis Abeba University and Obtained a BSc in Biology and MSc in Zoology with special emphasis on veterinary parasitology. He completed his PhD in Germany in Freshwater Ecology with special emphasis on the food web analysis from nutrients all the way up to the predatory fishes for the purpose of lake management. He is currently a Professor in College of Natural Science.

Books & Journal Articles Published By Professor Brook Lemma Mamaru

Research Publications by Professor Dr. Brook Lemma Mamaru

Summary of Research publications on Research Gate:

Number of Publications: 90

Few Examples:

Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques, Mar 2022.

Authors: Dessie Tibebe, Feleke Zewge, Brook lemma Mamaru, Yezbie Kassa

Abstract: Excess agrochemicals input from agricultural activities and industrial effluent around Lake Ziway catchment can pose a serious threat on the lake ecosystem. Lake Ziway is a shallow freshwater lake found in the northern part of the Ethiopian Rift Valley. It is characterized as semi-arid to sub-humid type of climate. Expansions of the flower industry...

Food and Feeding Biology of Nile Tilapia (Oreochromis niloticus) in Lake Langeno, Ethiopia, Jan 2022.

Authors: Temesgen, Abebe Getahun, Brook lemma Mamaru, Geert P. J. Janssens

Abstract: This study aimed to investigate the natural feeding behavior of Nile tilapia in Lake Langeno, Ethiopia, with emphasis on potential spatial, size and seasonal effects on ingested food items. This study of the food and feeding biology of O. niloticus in Lake Langeno, Ethiopia, was conducted from March 2016to February 2017. Fish samples were collected.

Evaluation of Tannery Wastewater Treatment by Integrating Vesicular Basalt With Local Plant Species in a Constructed Wetland System, Oct 2021.

Agegnehu Alemu, Nigus Gabbiye Habtu, Brook lemma Mamaru

Abstract: Tannery wastewater is composed of a complex mixture of organic and inorganic components from various processes that can critically pollute the environment, especially water bodies if discharged without treatment. In this study, integrated vesicular basalt rock and local plant species were used to establish a horizontal subsurface flow constructed w...

Livelihood Functions of Capture Fisheries in Sub-Saharan Africa: Food Security, Nutritional, and Economic Implications

Article

Full-text available

Jan 2019

Mathewos Temesgen, Abebe Getahun, Brook lemma Mamaru

Abstract: The objective of this review was to investigate the livelihood functions of capture fisheries (food security, nutritional, and economic implications) in Sub-Saharan Africa. Published and unpublished sources were used to obtain appropriate data. Capture fishery is the most important livelihood activity in the region. The contribution of capture fish...

Low-Cost Stormwater Filtration System to Improve Urban Water Quality: The Case of Addis Ababa, Ethiopia

Dagnachew Adugna, Larissa Larsen, Brook Lemma, Geremew Sahilu

Journal of Water Resource and Protection Vol.9 No.6，May 27, 2017

DOI: 10.4236/jwarp.2017.96046   1,271 Downloads  2,318 Views  Citations
This article belongs to the Special Issue on Urban Water Systems and Challenges

Brook Lemma (National Consultant) (2012): Report on the Value Chain (Marketing) Assessment of the Fishery Sector in Ethiopia. Publisher: Food and Agriculture Organization Sub-Regional Office for Eastern Africa (FAO/SFE), Addis Ababa. 131 pp.

Brook Lemma (National Consultant) (2013): The Value of African Fisheries: Contribution of Ethiopian Fisheries to the GDP. A report submitted to Food and Agriculture Organization of the United Nation (FAO), Rome.

Brook Lemma (2013): Environmental and Social Impact Assessment of the Rivers and Lakes of the Ethiopian Rift Valley. A scientific researching consultant report on the fisheries, water quality and social impacts on the rift lakes and rivers and submitted to the Environmental Resources Management, United Kingdom (ERM) and ESSD, Addis Ababa.

Dr. Jonathan T. Wubetu: Surgeon and Expert on Tissue Engineering

Research Publication by Dr. Jonathan T. Wubetu

The immunology of solid organ transplantation: