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Journal articles on the topic 'Igbo Law'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

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1

Umezi, Patrick Ikenna. "Ilu Igbo: Igosipụta Ọnọdụ Ụmụnwaanyị n’ọkwa Ọchịchị n’ala Igbo". UJAH: Unizik Journal of Arts and Humanities 20, № 3 (2020): 216–32. http://dx.doi.org/10.4314/ujah.v20i3.12.

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Nchọcha a bụ maka Ilu Igbo: Igosipụta ọnọdụ ụmụnwaanyị n’ọkwa ọchịchị n’ala Igbo. Ihe nwanchọcha bu n’obi bụ izipụta etu ndị Igbo si eji ilu dị iche iche ha ji achọ okwu mma ezipụta na ụmụnwaanyị enweghi ọnọdụ n’ọchịchị n’ala Igbo. Nkụ dị na mba na-eghere mba nri. Ndị Igbo na-esi n’ilu dị iche iche were ezipụtaomenala ha. A bị a n’ala Igbo, ụmụnwaanyị bụ ndị a na-eleda anya nke ukwuu n’ihe gbasara ọnọdụ ọchịchị obodo dị iche iche. Odee nyochara ọnọdụ ọchịchị n’ala Igbo bido n’oge ochie ruo ugbu a; o mere ka o doo anya na n’agbanyeghị na usoro ọchịchị Bekee mere ka onye ọbụla nwee nhatanha ọnụo

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2

Ebere, Obiakor, Ethel, Onuora, Ngozi Theresa, Olekaibe, Chinenye C., and Nwizu, Pauline Chinasa. "Igbo Child Training Versus Western Child Labour: A Comparative Study." International Journal of Research and Innovation in Social Science IX, no. IV (2025): 3706–18. https://doi.org/10.47772/ijriss.2025.90400266.

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There are different strokes for different folks. This is typical of Igbo concept of child training taunts by the Western world as child labour. Among the Igbo, child training begins early from the family. Children grow up following their parents: understudying their day to day activities which prepare them for the task of adulthood. Being mostly agrarian people, Igbo families’ father, mother and children all take part in the farms and the daily house chores. A setting and knowledge the Western world describes as informal education. On the other hand, such belief and orientation are seen as inh

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3

Anizoba, Emmanuel C. "A Philosophical Reading of Justice and Its Resistance to Social Change among the Igbo of Nigeria." Comparative Sociology 23, no. 3 (2024): 405–32. http://dx.doi.org/10.1163/15691330-bja10111.

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Abstract This article explores justice among the Igbo of Nigeria through a philosophical lens. Its discussion focuses on how the Igbo idea of justice intermingles with the idea of akadiocha (clean hands), proverbs, names and equal treatment for all, including the ancestors. Personal interviews form the primary sources of data collection while library materials are the secondary sources. The economy of the Igbo people of Nigeria is dynamic and multifaceted, with traditions of commerce, agriculture, manufacturing, and diaspora contributions playing crucial roles in its development and growth. Th

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4

Eze, Okonkwo C. "Deities as the third arm of traditional Igbo government." IKENGA International Journal of Institute of African Studies 24, no. 3 (2023): 1–20. http://dx.doi.org/10.53836/ijia/2023/24/3/008.

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Igbo studies, especially on political organisations, have enjoyed robust scholarly attention in historical discourse in recent times. The Igbo, unlike their immediate neighbours such as Benin (Edo) and the Igala, ran two parallel systems of government in the pre-colonial period. While some practised a centralised system of government, a reasonable number of Igbo communities contended with decentralised systems. Some reasons for the reign of peace and harmony amongst the Igbo have remained largely uninvestigated and unappreciated. The role of deities as the judicial arm of government in the def

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5

Yuliana Sari, Putri, and Ruly Indra Darmawan. "CULTURAL HYBRIDITY AS THE IMPACT OF BRITISH COLONIALISM IN ACHEBE’S THINGS FALL APART." English Teaching Journal and Research: Journal of English Education, Literature, And Linguistics 4, no. 2 (2024): 47–71. https://doi.org/10.55148/etjar.v4i2.1166.

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This study deals with the novel entitled Things Fall Apart which is create by a well-known Nigerian writer Chinua Achebe to sees the portraying of the relationship between British colonialism and cultural hybridity. The entire novel portrays Igbo society with specificity and sympathy and examines the effects of British colonialism from an African perspective. The objectives of this study is to identify the way the author explain the impact of British colonialism in Igbo society and create cultural hybridity phenomena which include religion or believe system, educational system and law or polit

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6

Njoku, F. O. C. "A Theoretical Foundation for Understanding Law Subjects and Rights in Igbo Philosophy of Law." Open Journal of Philosophy 03, no. 01 (2013): 255–63. http://dx.doi.org/10.4236/ojpp.2013.31a041.

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7

Nwaogaidu, John Chidubem. "Redefining the Leadership Institutions in Igbo Society." Journal of Advanced Research in Leadership 2, no. 1 (2023): 1–10. http://dx.doi.org/10.33422/jarl.v2i1.344.

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Several leadership institutions abound in Igbo traditional society. These leadership institutions are not without benefits and perhaps challenges. The aim of this study is to evaluate the leadership institutions and the ways they could fill the administration gap in the modern institution. Using the transformational theory of leadership, the study adopted a descriptive survey research design. The instrument for data collection was questionnaire. The study found that traditional leadership institutions such as the traditional rulers (or community chiefs or Igwe), council of elders, Onyishi trad

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8

Klima, Vladimir. "The Igbo elements in Nigerian writing." Neohelicon 16, no. 2 (1989): 89–96. http://dx.doi.org/10.1007/bf02029112.

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9

Osinubi, Taiwo Adetunji. "Abolition, Law, and the Osu Marriage Novel." Cambridge Journal of Postcolonial Literary Inquiry 2, no. 1 (2014): 53–71. http://dx.doi.org/10.1017/pli.2014.24.

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AbstractThis paper examines the representation of Osu slavery in Chinua Achebe’sNo Longer at Ease. Whereas critics read the references to Osu as a minor subplot in the novel, this author suggests the dissipation of the Osu marriage plot illustrates the crisis of abolition within the context of anticolonial struggles. By situating Achebe’s novel alongside midcentury discourses on abolition, freedom, and marriage rights, the author argues that the novel’s form responds to the impasses between the abolitionist agendas of international law, the administrative mandate of colonial law, and indigenou

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Nwodo, A. J., and H. C. Onah. "Application of the Contract Law Principles of "Consideration" in the Payment of Bride Price "Ime Ego Isi Nwanyi" Under the Customs and Traditions of Udunedem Ancient Kingdom, Udenu Local Government Area, Enugu State." Contemporary Journal of Social Science and Humanities 4, no. 3 (2023): 1–12. https://doi.org/10.5281/zenodo.10003037.

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<i>This work focuses on the payment of bride price, known as "Ime Ego Isi Nwanyi," under the customary marriage customs of Udunedem Ancient Kingdom in Enugu State, Nigeria. The Udunedem Ancient Kingdom comprises five Autonomous Communities, forming a significant portion of the Udenu Local Government Area. The customs and traditions surrounding bride price in this community align with broader Igbo cultural practices. The rules governing bride price payment in Udunedem Ancient Kingdom adhere to the principle of Sufficiency of Consideration, a concept in Contract Law. The customary law does not q

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Oba, Abdulmumini A. "Juju Oaths in Customary Law Arbitration and Their Legal Validity in Nigerian Courts." Journal of African Law 52, no. 1 (2008): 139–58. http://dx.doi.org/10.1017/s0021855308000065.

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AbstractTraditional oaths play decisive roles in customary law arbitration and are recognized and accorded due respect by the courts. This position is now threatened by four emerging factors. First, all customary law arbitrations (including those based on juju oaths) are now subjected to stringent conditions before the courts will enforce them. Secondly, there are discordant voices in the Supreme Court on the legal relevance and juristic value of traditional oaths. Thirdly, in August 2005, the gruesome activities of some shrines where juju oaths are administered in some Igbo communities were e

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Ezepue, Evelyn I., Paulinus P. Nwankwor, Ijeoma Joyce Chukwuemeka-Nworu, et al. "Evaluating the Local Language Dimensions for Effective Teaching and Learning Sustainability in the Secondary Education System in Southeast Nigeria: Results from a Small-Scale Study." Sustainability 15, no. 9 (2023): 7510. http://dx.doi.org/10.3390/su15097510.

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The paper reports on a pilot study conducted with private and secondary schools in the southeast region of Nigeria to establish the impact of integrating the Igbo language into the secondary education system to ensure performance and language sustainability in the region. The aim is to measure the impact of using Igbo as the language of instruction combined with English language on academic performances and the perceived benefits, challenges and policy implications. The study, involving teachers and students drawn from two private and public secondary schools, employed a combination of quasi-e

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13

Hamid Naveed and Muntazar Mehdi. "Linguistic Genocide of Indigenous Languages in Pakistan and Nigeria: A Comparative analysis of Language Policies and Practices." Journal of Arts and Linguistics Studies 3, no. 2 (2025): 2367–402. https://doi.org/10.71281/jals.v3i2.333.

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In the post-colonial world, language policies often contribute to the vitality of languages, often determining which languages thrive or face extinction. This research investigates and compares Pakistani and Nigerian language policies and practices to ascertain which policies promote or exhibit linguicism against Indigenous languages. The data have been taken from the constitutions of the countries concerned, while data for actual language practices come from credible online sources. Employing a qualitative approach and a comparative research design, textual analysis of data has been conducted

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14

Eyongndi, David Tarh-Akong Eyongndi, Faith Nwayemogho Opara, Olayiwola Owoade Oladele, David Andrew Agbu, and Mary-Ann Onoshioke Ajayi. "Realising Female Inheritance Rights in South Eastern Nigeria: The Imperativeness of Going beyond Legal Rhetoric." Age of Human Rights Journal, no. 22 (June 27, 2024): e7972. http://dx.doi.org/10.17561/tahrj.v22.7972.

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The decision of the Supreme Court of Nigeria in Ukeje v. Ukeje is regarded as the ultimate liberation of females, particularly in Eastern Nigeria from discriminatory customary law which disentitles them from inheritance in cases of intestate succession. While this decision buttresses the non-discriminatory provision of section 40 of the 1999 Constitution of the Federal Republic of Nigeria, making a judicial pronouncement is different from giving effect to same. The question, therefore, is how can this decision be effectuated especially in rural areas where the people jealously guard their trad

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15

Onuigbo, Wilson I. B., and A. Vijayalakshmi Suseelan. "Sudden Death in a Nigerian Due to Rupture of an Atherosclerotic Abdominal Aortic Aneurysm." Medicine, Science and the Law 25, no. 1 (1985): 69–71. http://dx.doi.org/10.1177/002580248502500112.

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ABSTRACT A case is described in which a 55-year-old Nigerian woman of the Igbo ethnic group died suddenly of a rupture of an atherosclerotic infrarenal aortic aneurysm. Necropsy revealed several features usually associated with this condition, but which occur very rarely in the African Negro. The report of its occurrence in this part of the world may facilitate further research in forensic epidemiology.

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16

Ejidike, Okey Martin. "Human rights in the cultural traditions and social practice of the Igbo of south-eastern Nigeria." Journal of African Law 43, no. 1 (1999): 71–98. http://dx.doi.org/10.1017/s0021855300008731.

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One of the crucial theoretical problems confronting human rights is the perception of its historical derivation related to the universal or relative character of the rights declared. Limited views on the origin of the concept are widespread and easily exploited to stymie die quest for human rights. Cultural-monopolist derivations of its origin have fed relativist but apologist arguments in developing countries. A cultural-universalist conception is not only possible but preferable. A contrary position would both contradict and deter the cause of human rights. To arrogate the concept to some gr

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17

Ngwu, Godwin Emeka, and Collins Ugochukwu Akpusi. "Another Work in Chidoluo v. Attansey from the Pricing of the 1999 Constitution of the Federal Republic of Nigeria (as Amended)." Law and Economy 2, no. 8 (2023): 37–41. http://dx.doi.org/10.56397/le.2023.08.04.

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For many decades, the rights of the girl child in Igboland were practically non-existent with regards to inheritance. It was the popular believe that a female child will grow up to leave her father’s house and ‘belong’ to another man and so should not partake in the sharing of the family property — a direct violation of section 42 of the Constitution of the Federal Republic of Nigeria 1999 (as amended). This gave rise to the age long disinheritance of the girl child in the estate of her deceased father. Her brothers were always quick to point out this ‘disability’ plaguing their sisters and in

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18

Okon, Enoch Ndem. "Terrorism, Banditry and Separatism." Journal of Central and Eastern European African Studies 2, no. 2 (2024): 17–35. https://doi.org/10.59569/jceeas.2022.2.2.127.

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This paper discusses the tripodal menace of terrorism, banditry and separatism as the centrifugal forces that threatened the existence of Nigerian State; and seeks to assuage the fear of morselization of Nigerian state by identifying six resiliencies that guard against the collapse of Nigeria. It concludes that the tripodal security challenges can be transformed into instruments for nation and state building. The paper therefore recommends the provision of homeland for nomadic Fulanis, an election of an Igbo President, as well as the restructuring of the polity as recommended in the 2014 Natio

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19

Adetunji Oni, Dr Babatunde. "Discriminatory Property Inheritance Rights Under The Yoruba And Igbo Customary Law In Nigeria: The Need For Reforms *." IOSR Journal of Humanities and Social Science 19, no. 2 (2014): 30–43. http://dx.doi.org/10.9790/0837-19243043.

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20

Kamal, Mustafa, Renzon Daniel Cosme Pecho, Hassan Falah Fakhruldeen, et al. "Photovoltaic/Hydrokinetic/Hydrogen Energy System Sizing Considering Uncertainty: A Stochastic Approach Using Two-Point Estimate Method and Improved Gradient-Based Optimizer." Sustainability 15, no. 21 (2023): 15622. http://dx.doi.org/10.3390/su152115622.

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In this paper, stochastic sizing of a stand-alone Photovoltaic/Hydrokinetic/Hydrogen storage energy system is performed with aim of minimizing the cost of project life span (COPL) and satisfying the reliability index as probability of load shortage (POLS). The stochastic sizing is implemented using a novel framework considering two-point estimate method (2m+1 PEM) and improved gradient-based optimizer (IGBO). The 2m+1 PEM is used to evaluate the impact of uncertainties of energy resource generation and system demand on sizing problem. The 2m+1 PEM utilizes the approximate method to account for

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21

Angela, U. Makolo, and V. Dada Oluwasegun. "Ethnicity Classification: A Machine Learning Approach." Egyptian Computer Science Journal 47, no. 1 (2023): 11–20. https://doi.org/10.5281/zenodo.7655148.

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<strong>Abstract-</strong>Recently, researchers in the field of Machine Learning have paid a lot of interest to the human face. Soft biometric features taken from a facial image can be used to distinguish between racial classes. Other soft biometrics features include race, age, gender, and emotions. Research has employed different techniques (traditional and deep learning) in predicting the major racial classes (Asian, Hispanic, African, Caucasian) with outstanding cutting-edge performances. Recently, research has focused on identifying distinguishing characteristics in sub-racial (ethnic) gro

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22

Aroh, Amadi, and Obinna J. Eze. "Customary Deprivation: Perceptions of Legatee in Igbo land and Female Property Crimes amongst Enugu Urban Inhabitants." International Journal of Criminology and Sociology 13 (March 18, 2024): 55–67. http://dx.doi.org/10.6000/1929-4409.2024.13.05.

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This study aims to garner perceptions of Enugu inhabitants on the customary practice of property transfer to inheritors and its nexus to female property crimes (FPCs). Inheritance is an age-old practice which tends to favour male folks. Women have often been relegated to the kitchen. This practice is embedded in most African cultures where the birth of a male is valued over the birth of a female child. Denial of female rights of inheritance, denial of ownership of landed property, and female marginalization in almost all social institutions seem to stem from patriarchy which in turn tend to pr

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23

Nnam, Macpherson Uchenna, Emeka J. Owan, Adeline Nnenna Idike, et al. "Voices from ‘Igbo Bunks’: A qualitative study of the complicity of law-enforcement agents in marijuana use in a Nigerian community." International Journal of Law, Crime and Justice 62 (September 2020): 100411. http://dx.doi.org/10.1016/j.ijlcj.2020.100411.

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24

Ani, Kelechi Johnmary, and Dominique Emmanuel Uwizeyimana. "Gender, Conflict and Peace-Building in Africa: A Comparative Historical Review of Zulu and Igbo Women in Crisis Management." International Journal of Criminology and Sociology 10 (December 31, 2021): 1726–31. http://dx.doi.org/10.6000/1929-4409.2021.10.195.

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The male gender has often dominated the quest for societal security. Analysis and studies on security management and peace-building tend to advance the role of the male folk more than their female counterparts. This study traced the role of historic Zulu women in societal security management and compared it to the Aba Women's War that is popularly referred to as the Aba women riot. The study used the African developmental feminism theory to anchor its analysis. It maintained that these women rose at critical times to challenge the forces that planted insecurity in their societies. It found tha

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Foyewa, R. A. "English: The Linguistic Alpha and Omega in Nigeria." British Journal of English Language Linguistics 10, no. 5 (2022): 1–7. http://dx.doi.org/10.37745/bjel.2013/vol10n517.

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This paper observed the dominant role of English language in Nigeria. Various factors responsible for the spread and domination of the language in Nigerians’ lives were observed. These include; the multilingual nature of the country; the inability of the country to select a national language from the three indigenous languages (Hausa, Igbo and Yoruba) or other minor languages; influence of the Western culture and attitudes of Nigerians towards the English language. The paper also discussed the various roles English language plays in Nigerian societies which make it dominates the indigenous lan

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Bamigboye, Samuel Oloruntoba, Muhali Olaide Jimoh, Falilat Abeni Lawal, Zainab Temitope Osiyemi, Charles Petrus Laubscher, and Learnmore Kambizi. "Utilization of Afzelia africana Sm. ex Pers. (Magnoliopsida: Fabales: Fabaceae) in Nigeria and its implications for conservation." Journal of Threatened Taxa 16, no. 2 (2024): 24795–803. http://dx.doi.org/10.11609/jott.8582.16.2.24795-24803.

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This study investigated the ethnobotanical uses of Afzelia africana Sm. ex Pers., a threatened tree species in Nigeria to determine the impact of uses of this species on the risk of its extinction. Ethnobotanical surveys were conducted by means of semi-structured questionnaires with the local community called Ijebu Igbo in Ogun state of Nigeria and a total of 60 respondents were interviewed from this community. Herbalists, artisans, Islamic scholars, traders, and retirees were interviewed to document their knowledge of the uses of A. africana. This study revealed that there are different uses

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27

Kanu, Ikechukwu Anthony. "Igwebuike theology of Omenani and the missionary bifurcation of horizons." OGIRISI: a New Journal of African Studies 16 (October 2, 2020): 127–44. http://dx.doi.org/10.4314/og.v16i1.8.

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African theology points to the fact that every particular situation or context calls for a particular theological reflection, that is, if the theological reflection is to make meaning within that unique circumstance. It is within this context that Igwebuike theology of Omenani emerges in relation to the understanding of culture as the Seed of the Word of God, which already pre-existed in Africa even before the emergence of the Western missionaries. The purpose of adopting this idea of culture as the Seed of the Word of God is to enhance the reconciliation between the African and Christian/West

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Okwuadinma, Okolie Simon, and Peter I. Gasiokwu. "The Right to Female Succession-Inheritance Under Native Laws and Customs in Nigeria: An Affront to Justice." Global Journal of Politics and Law Research 12, no. 6 (2024): 98–126. https://doi.org/10.37745/gjplr.2013/vol12n698126.

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The article highlights the right of women to inheritance and succession among the ethnic groups particularly the four sampled groups; Igbo, Yoruba, Benin and Hausa/ Fulani which is somewhat worrisome to any discerning mind. This is because of the inherent discrimination associated with the intestate succession/inheritance under the various native laws and customs practiced by our ethnic groups in Nigeria. However, what is most worrisome is that in spite of these concerns, the impact of advocacy and public engagements on this subject at different fora is yet to be felt and translated into gende

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Livina Nkeiruka, Emodi, and Emeka Otagburuagu. "Lexical Metaphor in Proverbs in Achebe’s Things Fall Apart, and A Man of the People: A Systemic Functional Linguistics Perspective." International Journal of Applied Linguistics and English Literature 11, no. 1 (2022): 25–31. http://dx.doi.org/10.7575/aiac.ijalel.v.11n.1p.25.

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This study was aimed at analyzing lexical metaphors identified in proverbs Achebe’s two novels: Things Fall Apart and A Man of the People. Objectives of this study were to identify these lexical metaphors from Achebe’s novels, discuss their meanings, functions, and ideolological implications in the novels under study. To achieve these objectives, the study was anchored on Systemic Functional Grammar, a social semiotic theory to highlight the signifier - signified relationship of these lexical metaphors and their ideological implications of Igbo people. The lexical metaphors are identified and

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Ejiogu, EC. "Herbert Ekwe-Ekwe: A Tribute." Journal of Asian and African Studies 57, no. 1 (2021): 150–62. http://dx.doi.org/10.1177/00219096211054917.

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The brilliant and erudite scholar and public intellectual of the state, genocide and ‘wars in Africa in the post-1966 epoch, beginning with the Igbo genocide, 29 May 1966 to 12 January 1970’, which he aptly designated as ‘the foundational and most gruesome genocide of post (European) conquest Africa’, Herbert Ekwe-Ekwe, who passed in 17 October 2019, was one of the select slate of scholars who were invited to contribute to this Special Issue of the journal. Characteristic of him and his dedication to the seriousness of purpose in scholarship, he was the first to complete and submit his contrib

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Agussaini, H., F. Sabila, and U. Al-Amin. "Evaluation of public green open space availability in Banda Aceh to support urban sustainability based on the Indonesian Green-Blue Index." IOP Conference Series: Earth and Environmental Science 1510, no. 1 (2025): 012071. https://doi.org/10.1088/1755-1315/1510/1/012071.

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Abstract The rapid development of Banda Aceh, marked by an increase in population and urbanization, has posed serious challenges in providing adequate green open spaces (GOS). The lack of GOS has resulted in a decline in environmental quality and public welfare. Law Number 26 of 2007 concerning Spatial Planning specifically mandates the obligation of city governments to provide at least 20% of the city’s total area as public GOS. Currently, the public GOS area of Banda Aceh based on 2024 DLHK3 Banda Aceh data is 843.29 hectares or 14.29% of the total area, which is still below the policy set b

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32

Oba, AA. "Islamic Law as Customary Law: The Changing Perspective in Nigeria." International and Comparative Law Quarterly 51, no. 4 (2002): 817–50. http://dx.doi.org/10.1093/iclq/51.4.817.

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Pluralism is a main feature of Nigeria as a country. There is ethnic pluralism.1 The pre-colonial Nigeria comprised of over 250 nation states embracing over 500 ethnic and linguistic groups.2 These ethnic groups spread across the three main geographical units in the country, namely, the north, the west, and the east. The north was dominated by the Hausa-Fulani and the Kanuri peoples, the west by the Yoruba speaking tribes, and the east by the Igbos.

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33

Shishkin, I., and Sergii Lushchin. "Controlling electrical circuit of electric motor on igbt transistors." Electrical Engineering and Power Engineering, no. 1 (June 30, 2023): 30–35. http://dx.doi.org/10.15588/1607-6761-2023-1-3.

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Purpose. Development and analysis of the operation of an electrical circuit for controlling a 700 W direct current electric motor using a contactor on IGBT transistors for operation in diesel locomotives. Methodology. Analytical and computational methods for developing and analyzing the operation of an electrical circuit using a contactor on IGBT transistors. Findings. An electrical circuit for controlling a 700 W DC motor using IGBT transistors was developed. The circuit allows you to replace electromagnetic contactors with IGBT transistors to improve the technical characteristics and perform

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34

León, Carlos. "Scale-free tails in colombian financial indexes: a primer." ODEON, no. 9 (February 12, 2016): 233. http://dx.doi.org/10.18601/17941113.n9.06.

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<p>A maximum likelihood method for estimating the power-law exponent verifies that the positive and negative tails of the Colombian stock market index (IGBC) and the Colombian peso exchange rate (TRM) approximate a scale-free distribution, whereas none of the heavy tails of a local sovereign securities index (IDXTES) are a plausible case for such distribution. Results also (i) support critiques regarding the flaws of ordinary least squares estimation methods for scale-free distributions; (ii) question the validity of Zipf’s law; (iii) suggest that IGBC and TRM display the scale-free natu

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Wang, Zhichao, Zhaoliang Meng, and Yong Gao. "Study on the phenomenon of nonlinear variation of VeE-max during aging of multichip parallel IGBT modules." Journal of Physics: Conference Series 2896, no. 1 (2024): 012010. https://doi.org/10.1088/1742-6596/2896/1/012010.

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Abstract The aging failure of bonding wires in IGBT modules is one of the causes of module failure, and it is one of the contents of the reliability research of power electronic devices and systems to investigate the damage mechanism, evolution law, and condition monitoring method of module bonding wires. In this paper, by taking the Infineon FF450R12ME4 half-bridge IGBT module as an object, we designed a double-pulse test to verify the correlation between the module junction temperature and VeE-max, used artificial picking off the bonding wires to simulate the aging of bonding wires, and anal

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Li, Cui, Yao Sheng Li, Jun Xu Liu, Hua Qiang Shao, Zhong yuan Chen, and Jin Yuan Li. "Research on performance parameter degradation of high voltage and high power IGBT module in power cycling test." Journal of Physics: Conference Series 2290, no. 1 (2022): 012041. http://dx.doi.org/10.1088/1742-6596/2290/1/012041.

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Abstract In Power cycling test, for low-voltage and low-power modules, it is generally considered that the saturation voltage drop VCE(sat) reaches 105% of the initial value or the thermal resistance Rth reaches 120% of the initial value as the basis for judging the failure of the IGBT module. However, since the high-voltage and high-power IGBT modules are connected in parallel with multiple chips, there are differences in the aging speed of the chips, and the degradation of individual chips has little influence on the parameters of the entire module, so the failure judgment standard may not b

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Mo, Fei, Xiaoran Mei, Takuya Saraya, Toshiro Hiramoto, and Masaharu Kobayashi. "A simulation study on memory characteristics of InGaZnO-channel ferroelectric FETs with 2D planar and 3D structures." Japanese Journal of Applied Physics 61, SC (2022): SC1013. http://dx.doi.org/10.35848/1347-4065/ac3d0e.

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Abstract We have investigated the memory characteristics of InGaZnO (IGZO)-channel ferroelectric FETs (FeFETs) with 2D planar and 3D structures by TCAD simulation to improve the memory window (MW) with a floating-body channel for high-density memory applications. From the study on 2D planar FeFETs with a single gate and a double gate, the MW depends on channel length (L) and is enhanced with shorter L due to stronger electrostatic coupling from the source and drain to the center region of the IGZO layer. From the study on 3D structure FeFETs with macaroni (MAC) and nanowire (NW) structures, a

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Kang, Chuyan, Sijia Huo, Yingbo Yue, et al. "Analysis of MMC Circulation Phase Sequence Separation and Research on Flexible Sliding Mode Circulation Suppression Method." Energies 18, no. 4 (2025): 960. https://doi.org/10.3390/en18040960.

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Modular multilevel converter (MMC) circulating current suppression is an effective method in improving power conversion quality. However, due to the complex composition of circulation under a three-phase imbalanced state, as well as the limitations of existing sliding mode circulation suppression methods that can easily cause high-frequency oscillation in the system, the circulation suppression effectiveness still needs to be further improved. Firstly, this article clarifies the phase sequence law and key control factors of the circulation by separating the MMC circulation phase sequence and d

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Monye, Ambrose Adikarnkwu. "A re-examination of the 9th vowel phoneme in Igbo." Studies in African Linguistics 20, no. 2 (1989): 201–16. http://dx.doi.org/10.32473/sal.v20i2.107450.

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In this study the author provides some linguistic evidence to support his argument that I~!is an autonomous vowel phoneme in the Enuani dialect. First, he uses some minimal pairs to show instances where it contrasts with both lei and la/. In addition, he compares the Enuani vowel harmony set with the eastern Igbo set, pointing out that whereas the fonner has 9 vowel phonemes with the vowel phoneme I~I inclusive, the latter has 8 without it. Finally, he uses unitary words to show instances where I~/, lei, and lal either co-occur or do not co-occur in the Enuani dialect. With the above points he

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Chen, Jibing, Bowen Liu, Maohui Hu, et al. "Study of the Solder Characteristics of IGBT Modules Based on Thermal–Mechanical Coupling Simulation." Materials 16, no. 9 (2023): 3504. http://dx.doi.org/10.3390/ma16093504.

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The insulated-gate bipolar transistor (IGBT) represents a crucial component within the domain of power semiconductor devices, which finds ubiquitous employment across a range of critical domains, including new energy vehicles, smart grid systems, rail transit, aerospace, etc. The main characteristics of its operating environment are high voltage, large current, and high power density, which can easily cause issues, such as thermal stress, thermal fatigue, and mechanical stress. Therefore, the reliability of IGBT module packaging has become a critical research topic. This study focuses on the d

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Abdoul, Rjoub, Al-Mistarihi Mamoun, and Al Taradeh Nedal. "Accurate leakage current models for MOSFET nanoscale devices." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 3 (2020): 2313–21. https://doi.org/10.11591/ijece.v10i3.pp2313-2321.

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This paper underlines a closed form of MOSFET transistor’s leakage current mechanisms in the sub 100nmparadigm.The incorporation of drain induced barrier lowering (DIBL), Gate Induced Drain Lowering (GIDL) and body effect (m) on the sub-threshold leakage (Isub) was investigated in detail. The Band-To-Band Tunneling (IBTBT) due to the source and Drain PN reverse junction were also modeled with a close and accurate model using a rectangular approximation method (RJA). The three types of gate leakage (IG) were also modeled and analyzed for parasitic (IGO), inversion channel (IGC), and gate

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Wang, Chuankun, Yigang He, Yunfeng Jiang, and Lie Li. "An Anti-Interference Online Monitoring Method for IGBT Bond Wire Aging." Electronics 10, no. 12 (2021): 1449. http://dx.doi.org/10.3390/electronics10121449.

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Due to the constant changes of the environment and load, the insulated-gate bipolar transistor (IGBT) module is subjected to a large amount of junction temperature (Tj) fluctuations, which often leads to damage to the bond wires. The monitoring parameters of IGBTs are often coupled with Tj, which increases the difficulty of monitoring IGBTs’ health status online. In this paper, based on the collector current (Ic) and collector-emitter on-state voltage (Vce_on) online monitoring circuit, an online monitoring method of IGBT bond wire aging against interference is proposed. First, the bond wire a

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SCOTT, SHIRLEY V. "Intergovernmental Organizations as Disseminators, Legitimators, and Disguisers of Hegemonic Policy Preferences: The United States, the International Whaling Commission, and the Introduction of a Moratorium on Commercial Whaling." Leiden Journal of International Law 21, no. 3 (2008): 581–600. http://dx.doi.org/10.1017/s0922156508005190.

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AbstractThe recognized benefits to a hegemon of working through an intergovernmental organization (IGO) include legitimating its policy preferences, disseminating them with efficiency, and promoting stability. While most would agree that international law is important in this process, it is less easy to map exactly how international law fulfils this role. Using the cognitive structures of co-operation (CSC) approach to the political interpretation of multilateral treaties, this article demonstrates at a relatively low level of abstraction the way in which a constitutive treaty embeds an ideati

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Xiao, Juncheng, Shimin Ge, Zhixiong Jiang, et al. "P‐1.9: Enhanced Stability Under Positive Bias Temperature Stress of Ln‐Doped InZnO Thin Film Transistors Fabricated with Back‐channel‐etch Structure." SID Symposium Digest of Technical Papers 55, S1 (2024): 654–57. http://dx.doi.org/10.1002/sdtp.17165.

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Lanthanide‐doped indium zinc oxide (Ln‐IZO) was employed as the active channel layer (ACT) of thin film transistors (TFTs). The, Ln‐IZO, single‐1 ACT‐based TFT exhibited a high mobility and a small threshold voltage shift (∆VTH) within −1 V after 1‐hour negative bias temperature illumination stress (NBTIS). However, the corresponding ∆ VTH of 1‐hour positive bias temperature stress (PBTS) was as large as over 8 V. Optimized stacked structures of the ACT were adopted and obtained a significantly improved stability of PBTS. TFTs based on double‐2 ACT (Ln‐IZO/IGZO‐1) and triple‐2 ACT (Ln‐IZO/IGZO

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Boehmer, Charles, and Renato Corbetta. "Hard International Law-Contributing Organizations as Networks." Peace Economics, Peace Science and Public Policy 22, no. 4 (2016): 413–26. http://dx.doi.org/10.1515/peps-2016-0031.

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AbstractThis paper explores the networks that intergovernmental organizations (IGOs) create in the international system and explore how states relate to each other in such networks. It focuses in particular on the network of IGOs that act as creators of and agents for hard international law. We introduce new data that allows us to investigate which institutional traits and functions are most closely related to IGOs’ contribution to the implementation and enforcement of informal international law. We map out and explore the network of “highly legalized” IGOs for the years 1980–2005 as well as t

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Goetze, Thorsten Oliver, Salah-Eddin Al-Batran, and Vittorio Paolucci. "Curative treatment in gallbladder cancer: Adjuvant or multimodal concepts—Evidence from data of 975 cases of The German Registry of Incidental Gallbladder Carcinoma." Journal of Clinical Oncology 35, no. 4_suppl (2017): 367. http://dx.doi.org/10.1200/jco.2017.35.4_suppl.367.

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367 Background: Incidental gallbladder cancer (IGBC) in T1b-3 stage do profit from radical cholecystectomy but nevertheless the cure rate in T2-3 carcinomas is disappointing. For improvement, following questions are of interest. What is significant regarding adjuvant or multimodal aspects? Which technique of liver resection (LR) and lymph- node dissection (LAD) is meaningful? Role of lymph node ratio (LNR)? Answers based on the data of 975 IGBC of the GR- platform. Methods: For data analysis we used the German- Registry- platform (GR). The GR is a network of more than 300 clinics in Germany. M

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Li, Jinyuan, Zhongyuan Chen, Lei Zhang, Chouwei NI, and Zhibin ZHAO. "Inductance extraction of Press-Pack IGBT by Considering Displacement Current." E3S Web of Conferences 64 (2018): 04004. http://dx.doi.org/10.1051/e3sconf/20186404004.

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Taking the displacement current generated by charges accumulation into consideration, this paper presents a inductance extraction method for press-pack IGBT where conductor might not form a closed loop in simulation. Charge accumulating on ends of conductor is considered and then Ampere’s circuital law (ACL) could be meet. Vector potential A also could be affected by displacement current, which leads to a different formulation of partial inductance. A simplified model based on practical structure are used in numerical experiment for comparison between existing method and proposed method.

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Yang, Hyunkyu, and Youn Sang Kim. "Enhancing a-IGZO Thin-Film Transistors Performance Via Multi-Parameter Machine Learning." ECS Meeting Abstracts MA2024-02, no. 34 (2024): 2409. https://doi.org/10.1149/ma2024-02342409mtgabs.

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Driven by miniaturization in accordance with Moore's Law, memory devices like DRAM and NAND have achieved significant performance improvements. However, this relentless scaling has encountered fundamental physical limitations, hindering further miniaturization of traditional silicon (Si)-based transistors and restricting further performance gains. To confront this challenge, research is actively exploring new materials and architectures. Among these promising candidates, the Indium Gallium Zinc Oxide (IGZO) channel transistor has emerged as particularly attractive due to its advantages in low

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Lee, Sungsik. "An Empirical Modeling of Gate Voltage-Dependent Behaviors of Amorphous Oxide Semiconductor Thin-Film Transistors including Consideration of Contact Resistance and Disorder Effects at Room Temperature." Membranes 11, no. 12 (2021): 954. http://dx.doi.org/10.3390/membranes11120954.

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In this paper, we present an empirical modeling procedure to capture gate bias dependency of amorphous oxide semiconductor (AOS) thin-film transistors (TFTs) while considering contact resistance and disorder effects at room temperature. From the measured transfer characteristics of a pair of TFTs where the channel layer is an amorphous In-Ga-Zn-O (IGZO) AOS, the gate voltage-dependent contact resistance is retrieved with a respective expression derived from the current–voltage relation, which follows a power law as a function of a gate voltage. This additionally allows the accurate extraction

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Li, Yu, Xiaoxiao Lin, and Jingsen Liu. "An Improved Gray Wolf Optimization Algorithm to Solve Engineering Problems." Sustainability 13, no. 6 (2021): 3208. http://dx.doi.org/10.3390/su13063208.

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With the rapid development of the economy, the disparity between supply and demand of resources is becoming increasingly prominent in engineering design. In this paper, an improved gray wolf optimization algorithm is proposed (IGWO) to optimize engineering design problems. First, a tent map is used to generate the initial location of the gray wolf population, which evenly distributes the gray wolf population and lays the foundation for a diversified global search process. Second, Gaussian mutation perturbation is used to perform various operations on the current optimal solution to avoid the a

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