PERCEIVED EFFECTIVENESS OF THE LEADERSHIP STYLES OF DEANS IN ETHIOPIAN GOVERNMENTAL TECHNICAL AND VOCATIONAL EDUCATION AND TRAINING (TVET) COLLEGES

The Industrial Development Strategy of 2003 has shown that considerable human resource deficits in Ethiopia are the major reason for the low rate of industrial development. This strategy confirms in its statement: “...education and a training system that is capable of producing the manpower that is both professionally and ethically capable of carrying and sustaining the responsibility of seeing to it that our industrial development program will have achieved its goals” (MOFED, 2003). Therefore, it called for efforts towards quality improvement of the workforce, to reverse the marginalisation of the industrial professions in the TVET system, and to build a culture of entrepreneurship and self-employment (MOFED, 2010). In 2009, the Southern Nations, Nationalities People’s Region (SNNPR) Centre of Competence (COC) conducted standard exams for those who graduated from TVETs. The results were disappointing, as only 12.2% of the TVET graduates and 34.9% of the TVET instructors passed the examinations (SNNPR TVET, 2010). Hence, to solve this chronic problem, high calibre deans should be appointed. In line with this idea, in the year 2003, the World Bank designed a training project to produce and assign skilled leaders in higher education in Ethiopia (World Bank, 2003). Although it failed, it was also the plan of the Ethiopian government that the percentage of TVET leaders trained in leadership would reach 100% in the year 2014 (MOFED, 2010). The TVET sector has particular significance for the reduction of poverty and for the promotion of gender equity because it stresses certain dimensions such as opportunities, skills, human resources development and empowerment. However, in Ethiopia, the Ministry of Finance and Economic Development (MOFED) has introduced an emphasis on developing TVET skills only since the turn of the 21st century. As a result, the MOE has required TVET practitioners not only to link up their knowledge and skills with the past in order to understand the present situation, but also to prompt them to look beyond the present to cope with this dynamic world (MOFED, 2006). The present study assumes importance in finding out perceived effectiveness of the leadership styles of deans in Ethiopian governmental technical and vocational education and training (TVET) colleges.  Article visualizations

LEADERSHIP STYLES OF THE DEANS IN ETHIOPIAN GOVERNMENTAL TECHNICAL AND VOCATIONAL EDUCATION AND TRAINING (TVET) COLLEGES

Technological advancements have driven the development of dynamic work environments leading to a need for dynamic and visionary leaders who possess leadership skills and are capable of meeting the challenges and opportunities that exist in the modern workplace that is intent on promoting the change necessary for developing and maintaining the competitive edge (Burke, Stagl, Klein, Goodwin, Salas, Halpin & Winer, 2006). Again, it is even more critical that leaders of the highest calibre are identified, developed, and sharpened within educational institutions. Avolio and Bass (1991) who in their research identified three leadership styles, namely: transformational, transactional, and laissez-faire. They state that these three leadership styles can be used to identify the predictive roles of this range of leader attributes as well as the three outcomes of leadership, namely: extra effort, effectiveness and satisfaction. The FRL is regarded as a contemporary model that has the potential to explain leadership and its multidimensional nature and to measure behaviours empirically that can be used to predict leadership outcomes (Antonakis, Avolio & Sivasubramaniam, 2003; Avolio, 2010). According to Dew (1995) and Northouse (2012), leaders make an attempt to lift up motivation and morale when a transformational leadership style is put into effect. Similarly, Curtin (2004) and Conger and Kanungo (1990) propose that organisations require leadership that stimulates leaders and followers as a result of which observable change can come to the fore. For Avolio (2010), college deans should use the transformational leadership style to be the most successful. The findings of Morgenson, DeRue and Karam (2009), and Ross and Offerman (1991) have suggested that it is advantageous for organisations if they are led by lenient, more nurturing leaders. In his work, Nahavandi (2003) has tried to describe the characteristics of transformational leaders as follows: they work hard to promote self-reliance and optimism about goals and followers' ability, provide a vivid vision, initiate innovation through empowerment and rewards for followers, inspire high expectations by creating a conducive environment and, finally, form and strengthen personal relationships with followers. For Nahavandi (2003), these five characteristics of a transformational leader are of vital importance and the absence of one of these characteristics would make such a leader either ineffective or less effective in terms of his/her leadership. The present study assumes importance in finding out to what extent do the leadership styles adopted by deans have an effect on the government TVET Colleges’ perceived effectiveness as evaluated by deans, teachers, and students.  Article visualizations

Evaluation of the Water Footprint of Beef Cattle Production in Nebraska

Data were compiled on feed usage to model the amount of water needed to produce beef in typical Nebraska production systems. Production systems where cows were wintered on corn residue utilized 18% less water than systems utilizing native range as a wintering source, because of water allocations. Therefore, the water footprint (gallons of water required to produce one pound of boneless meat) was decreased by 18%. In addition, increasing the dietary inclusion of distillers grains from 0% to 40% decreased the water footprint in the finishing phase by 29%, again based on water allocation. Utilizing corn residue and distillers grains in Nebraska beef cattle systems decreases the overall water footprint of production. Additionally, the water footprint of the systems analyzed was 80% green water as rain, minimizing the environmental impact of beef production on freshwater use and ecological water balance

Water productivity in meat and milk production in the US from 1960 to 2016

Global demand for livestock products is rising, resulting in a growing demand for feed and potentially burdening freshwater resources to produce this feed. To offset this increased pressure on water resources, the environmental performance of livestock sector should continue to improve. Over the last few decades, product output per animal and feedstuff yields in the US have improved, but before now it was unclear to what extent these improvements influenced the water productivity (WP) of the livestock products. In this research, we estimate changes in WP of animal products from 1960 to 2016. We consider feed conversion ratios (dry matter intake per head divided by product output per head), feed composition per animal category, and estimated the water footprint of livestock production following the Water Footprint Network\u27s Water Footprint Assessment methodology. The current WP of all livestock products appears to be much better than in 1960. The observed improvements in WPs are due to a number of factors, including increases in livestock productivity, feed conversion ratios and feed crop yields, the latter one reducing the water footprint of feed inputs. Monogastric animals (poultry and swine) have a high feed-use efficiency compared to ruminants (cattle), but ruminants consume relatively large portion of feed that is non-edible for humans. Per unit of energy content, milk has the largest WP followed by chicken and pork. Per gram of protein, poultry products (chicken meat, egg and turkey meat) have the largest WP, followed by cattle milk and pork. Beef has the smallest WP. These data provide important information that may aid the development of strategies to improve WP of the livestock sector

Visceral leishmaniasis patients display altered composition and maturity of neutrophils as well as impaired neutrophil effector functions

Immunologically, active visceral leishmaniasis (VL) is characterised by profound immunosuppression, severe systemic inflammatory responses and an impaired capacity to control parasite replication. Neutrophils are highly versatile cells, which play a crucial role in the induction as well as the resolution of inflammation, the control of pathogen replication and the regulation of immune responses. Neutrophil functions have been investigated in human cutaneous leishmaniasis, however, their role in human visceral leishmaniasis is poorly understood. In the present study we evaluated the activation status and effector functions of neutrophils in patients with active VL and after successful anti-leishmanial treatment. Our results show that neutrophils are highly activated and have degranulated; high levels of arginase, myeloperoxidase and elastase, all contained in neutrophils’ granules, were found in the plasma of VL patients. In addition, we show that a large proportion of these cells are immature. We also analysed effector functions of neutrophils that are essential for pathogen clearance and show that neutrophils have an impaired capacity to release neutrophil extracellular traps, produce reactive oxygen species and phagocytose bacterial particles, but not Leishmania parasites. Our results suggest that impaired effector functions, increased activation and immaturity of neutrophils play a key role in the pathogenesis of VL

Study on knowledge, attitude and dog ownership patterns related to rabies prevention and control in Addis Ababa, Ethiopia

The study was conducted from May 2003 to August 2003 in Addis Ababa with the objective of understanding the distribution of stray and owned dogs, dog ownership patterns and attitudes of people towards rabies and its prevention and control methods. A total of 2390 households were selected from 6 Sub Cities of Addis Ababa using stratified random sampling and were interviewed using structured questionnaires. From the total households interviewed, 969 (40.5%) of them were known to own one or more dogs, and the total number of owned dogs was estimated to be 225,078. Male dogs make up 1042 (78.4%) of the total owned dogs. Almost half of all the dogs 463 (47.8%) were tied only for some time during the day whereas 320 (33.1%) of the dogs were not tied at all and freely move from place to place and contribute to high dog bites in human beings and for the widespread occurrence of canine rabies in Addis Ababa. Six hundred fifty five (67.6%) of the interviewed households who owned dogs had a well fenced house. Most of the owned dogs 856 (88.4%) get their food from their owners and only 321 (33.3%) of the owners reported that they let their dogs to be vaccinated while the majority of the owners 644 (66.5%) do not let their dogs vaccinated regularly. A significant proportion of the interviewed households 2,323 (97.2%), (P < 0.05) indicated that they have the knowledge that dogs, cats and other animals can transmit rabies to humans and 1,752 (73.4%) of the households replied that rabies can be transmitted through bite, scratch and lick to open wounds. Analysis of the list of 2400 post exposure human antirabies treatments recorded at the EHNRI Zoonoses Laboratory from February 2002 to October 2003 showed that the most common animals involved in biting people were dogs. A total of 2198 (91.6%) people were bitten by dogs during the same period and most of them, 2053 (85.5%) were bitten on their hands and legs. All the above data indicated the need for a strong and coordinated rabies control activities to be conducted in the city

Molecular Dynamics Simulation of Solvent-Polymer Interdiffusion. I. Fickian diffusion

The interdiffusion of a solvent into a polymer melt has been studied using large scale molecular dynamics and Monte Carlo simulation techniques. The solvent concentration profile and weight gain by the polymer have been measured as a function of time. The weight gain is found to scale as t^{1/2}, which is expected for Fickian type of diffusion. The concentration profiles are fit very well assuming Fick's second law with a constant diffusivity. The diffusivity found from fitting Fick's second law is found to be independent of time and equal to the self diffusion constant in the dilute solvent limit. We separately calculated the diffusivity as a function of concentration using the Darken equation and found that the diffusivity is essentially constant for the concentration range relevant for interdiffusion.Comment: 17 pages and 7 figure

Global Monthly Water Scarcity: Blue Water Footprints versus Blue Water Availability

Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than water withdrawals, accounting for the flows needed to sustain critical ecological functions and by considering monthly rather than annual values. We analyzed 405 river basins for the period 1996–2005. In 201 basins with 2.67 billion inhabitants there was severe water scarcity during at least one month of the year. The ecological and economic consequences of increasing degrees of water scarcity – as evidenced by the Rio Grande (Rio Bravo), Indus, and Murray-Darling River Basins – can include complete desiccation during dry seasons, decimation of aquatic biodiversity, and substantial economic disruption

Evaluation of the Water Footprint of Beef Cattle Production in Nebraska

Data were compiled on feed usage to model the amount of water needed to produce beef in typical Nebraska production systems. Production systems where cows were wintered on corn residue utilized 18% less water than systems utilizing native range as a wintering source, because of water allocations. Therefore, the water footprint (gallons of water required to produce one pound of boneless meat) was decreased by 18%. In addition, increasing the dietary inclusion of distillers grains from 0% to 40% decreased the water footprint in the finishing phase by 29%, again based on water allocation. Utilizing corn residue and distillers grains in Nebraska beef cattle systems decreases the overall water footprint of production. Additionally, the water footprint of the systems analyzed was 80% green water as rain, minimizing the environmental impact of beef production on freshwater use and ecological water balance

Effect of ligand backbone on the selectivity and stability of rhodium hydroformylation catalysts derived from phospholane-phosphites

We thank the Eastman Chemical Company for funding and permission to publish. M.B. thanks the School of Chemistry and EaStCHEM for support.A study on how ligand backbone structure has an impact on selectivity, rate, and catalyst stability of hydroformylation catalysts was prompted by some longer-term stability issues being discovered for a phospholane-phosphite with a [−CH2O−] backbone. A series of phospholane-phosphite ligands were synthesized. Catalysts made in situ from these ligands and [Rh(acac)(CO)2] were found to give iso-butanal selectivities up to 75% at temperatures between 75 and 105 °C: the latter being a benchmark for iso-selectivity in reactions conducted at industrially meaningful temperatures. A racemic rhodium complex of a bidentate phospholane-phosphite from a tropos-biphenol with an extended backbone showed unusually high stability at high temperatures, combined with even better iso-selectivity in propene hydroformylation relative to the original complex. A related ligand with an electron-withdrawing group maintained the unusually high stability and improved activity. Characterization of the precatalysts of type [RhH(CO)2(L)] was accomplished using in situ HPIR spectroscopy and backed up by density functional theory calculations (B3PW91-D3 level) and by NMR studies; the latter showed that the variation of the backbone also had a pronounced impact on the precatalyst structure. A key finding is that it is now possible to prepare phospholane-phosphite ligands that deliver high iso-butanal selectivity and that show no signs of degradation after several days even above typical reaction temperatures. In one stability test, several kilograms of aldehydes were produced with TOF and selectivity being consistent over several days.PostprintPeer reviewe