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1. Winter Holts Oscillatory Method: A New Method of Resampling in Time Series.

Author

Muhammad Imtiaz Subhani and Muhammad Furquan Saleem

Subjects
Winter Holts Oscillatory Method, bootstrapping, resampling, Business, HF5001-6182
Abstract

The core proposition behind this research is to create innovative methods of bootstrapping that can be applied in time series data. In order to find new methods of bootstrapping, various methods were reviewed; The data of automotive Sales, Market Shares and Net Exports of the top 10 countries, which includes China, Europe, United States of America (USA), Japan, Germany, South Korea, India, Mexico, Brazil, Spain and, Canada from 2002 to 2014 were collected through various sources which includes UN Comtrade, Index Mundi and World Bank. The findings of this paper confirmed that Bootstrapping for resampling through winter forecasting by Oscillation and Average methods give more robust results than the winter forecasting by any general methods.

Published
2016
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2. Towards a Better Commercial Arbitration: Should Ethiopia Ratify the New York Convention?

Author

Beyene, Mesfin

Subjects
ARBITRATION & award, INTEREST rates, RATE of return, STATE courts, DUTY
Abstract

The 1958 New York Convention on the Recognition and Enforcement of Foreign Arbitral awards is currently ratified by 161 states. The Convention gives a visa for arbitral awards made in a Convention state and guarantees enforcement of the award elsewhere except on few grounds. It imposes obligations on states and their courts to recognize and enforce foreign arbitral awards and arbitration agreements. It also imposes on courts the obligation to stay proceeding with a matter subject to the arbitration agreement. Ethiopia has not yet ratified the NYC. This article aims at demonstrating the challenges and prospects of ratification of the Convention by Ethiopia. I argue that by ratifying the Convention, Ethiopia would be able to, inter alia, increase trade and investment, get access to lower interest rates and rates of return, improve its international image, improve on competition for trade and investment, improve its arbitration system, decrease caseloads of courts and hasten its move towards the accession to WTO. These factors show that it is in the country's interest to ratify the Convention and domesticate it through the instrumentality of the UNCITRAL Model Law. [ABSTRACT FROM AUTHOR]

Published
2019
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6. Histopathological and therapeutical aspects of cervical lesions

Author

S, Eramo, M, Baldi, M C, Marci, and A, Monaco

Subjects
Dental Materials, Tooth Abrasion, cervical lesion, Dentin, Microscopy, Electron, Scanning, Humans, Tooth Erosion, Dental Caries, Tooth Attrition, Dental Enamel, Dental Restoration, Permanent, Tooth Cervix
Abstract

The term "cervical lesions" definies all the alterations consisting in a loss of hard dental tissues located along the cement-enamel junction, and may be more specifically defined as carious lesions (LCC) and non-carious lesions (NCCL). The non-carious cervical lesions are characterized by the loss of mineralised dental tissue in the absence of a carious process. This definition includes three different lesion categories: abrasion, erosion and the cervical lesions caused by stress (abfractions). In this paper the authors explain the histological, clinical, preventive findings of NCCL and try to give some guidelines to choose the appropriate material to restore different types of non carious cervical lesions.

Published
2003

7. Self-Regulated Strategy development Model. Impact on Students' Writing Skills and Writing Self-efficacy with a Focus on 7th grade Amharic Native Speakers : ራስመር የ7ኛ ተተኳሪነት

Author

Smienew Dessie and Smienew Dessie

Abstract

Doctoral Thesis / Dissertation from the year 2022 in the subject African Studies - Linguistics,, language: Amharic, abstract: The main purpose of the study was to examine whether the self-regulated strategy development model make differences or not on students'writing skills and writing self-regulation. To this end, a quasi-expermental research design has been implemented. The study was conducted with the participation of 7th graders who were studying at the Empress Menen Primary School in Dessie City Administration, Amhara National Regional State in 2010. Out of the five sections, three sections were randomly selected and based on their pre-writing performance test and writing self-regulation questionnaire, two competing sections were selected. Of these two section, the experimental group (42 students) and the control group (43 students) with a total of 85 students participated in the study. የጥናቱ ዋና ዓላማ ራስመር ብልሀት ግንባታ ሞዴል በተማሪዎች የመጻፍ ችሎታና ግለብቃት እምነት ላይ ልዩነት ማስከተል አለማስከተሉን መፈተሸ ነው፡፡ ይህን ዓላማ ለማሳካትም ፍትነት መሰል የጥናት ንድፍ ተግባራዊ ሆኗል። ጥናቱ በአማራ ብሄራዊ ክልላዊ መንግስት በደሴ ከተማ አስተዳደር በእቴጌ መነን አጠቃላይ የመጀመሪያ ደረጃ ትምህርትቤት በ2010 ዓ.ም ይማሩ በነበሩ የሰባተኛ ክፍል ተማሪዎች ተሳታፊነት የተከወነ ነው፡፡ በትምህርትቤቱ ከሚገኙ አምስት የሰባተኛ ክፍል ምድቦች መካከል ሶስት ምድቦች በተራ ዕጣ ናሙና ተመርጠው የቅድመትምህርት የመጻፍ ክሂል ችሎታ ፈተና በመፈተንና የመጻፍ ግለብቃት እምነት መጠይቅ በማስሞላት የመጻፍ ችሎታቸውና ግለብቃት እምነታቸው ተለክቶ ተመጣጣኝ ችሎታ ያላቸው ሁለት ምድቦች ተመርጠዋል፡፡ ከእነዚህ ሁለት ምድቦች መካከል ደግሞ በቀላል ተራ ዕጣ ናሙና አንደኛው ምድብ የሙከራ ቡድን (42 ተማሪዎች) እና ሌላኛው ምድብ ደግሞ የማመሳከሪያ ቡድን (43 ተማሪዎች) በጥቅሉ 85 ተማሪዎች የጥናቱ ተሳታፊ ሆነዋል፡፡ በትምህርቱም በራስመር ብልሀት ግንባታ ሞዴልና በተለመደው የመጻፍ ትምህርት አቀራረቦች ሁለቱ ቡድኖች የመጻፍ ትምህርትን ለ16 ክፍለጊዜያት ያክል ተምረዋል፡፡ የመጻፍ ትምህርቱ ከተሰጠ በኋላ ደግሞ ለሁለቱም ቡድኖች የድህረመጻፍ ትምህርት ፈተና በመፈተንና የመጻፍ ግለብቃት እምነት መጠይቅ በማስሞላት መረጃ ተሰብስቧል፡፡ መረጃዎቹም በአማካይ ውጤት፣ በመደበኛ ልይይት፣ በጥንድ ናሙናዎች ቲ-ቴስትና በአበርልይይት ተሰልተው ተተንትነዋል፡፡ የጥናቱ ግኝቶች እንዳመለከቱትም ራስመር ብልሀት ግንባታ ሞዴልን ተጠቅመው መጻፍን የተማሩት የሙከራ ቡድኑ ተማሪዎች የጽሁፍ ችሎታ (የጽሁፍ አላባዎች ብዛት p=0.000፣ የጽሁፍ ርዝማኔ p=0.000 ና የጽሁፍ ጥራት p=0.000) መሻሻል አሳይተዋል፡፡ ከዚህም በተጨማሪ ብልሀቱን ተጠቅመው መጻፍን የተማሩ የሙከራ ቡድኑ ተማሪዎች በምክንያትና ውጤት እና በተራኪ የአጻጻፍ ስልት የመጻፍ ችሎታ መካከል ጉልህ ልዩነት (የጽሁፍ አላባዎች ብዛት p=0.321፣ የጽሁፍ ርዝማኔ p=0.282 እና የጽሁፍ ጥራት p=0.179) አላሳዩም፡፡ በመጨረሻም በራስመር ብልሀት ግንባታ ሞዴል መጻፍን የተማሩ የሙከራ ቡድኑ ተማሪዎች ብልሃቱን ሳይጠቀሙ መጻፍን ከተማሩ የማመሳከሪያ ቡድኑ ተማሪዎች የበለጠ የመጻፍ ግለብቃት እምነት ለውጥ (p=0.003) አምጥተዋል፡፡ በመሆኑም ራስመር ብልሀት ግንባታ ሞዴልን ተጠቅሞ መጻፍን ማስተማር የተማሪዎችን የመጻፍ ችሎታና የመጻፍ ግለብቃት እምነት ያሻሽላል ከሚል ድምዳሜ ተደርሷል፡፡ ከዚህም በተጨማሪ ብልሃቱ ለሁሉም ዘውጎች እንደሚያገለግልና ከዘውግ ዘውግ ልዩነት እንደማይፈጥርም ድምዳሜ ላይ ተደርሷል፡፡ ከጥናቱ ግኝት በመነሳትም ስነትምህርታዊ የመፍትሄ ሀሳቦችና የወደፊት የምርምር አቅጣጫዎች ተመላክተዋል፡፡

Published
2022