Ahmad Usaini Umar - Academia.edu (original) (raw)

Conference Presentations by Ahmad Usaini Umar

Research paper thumbnail of KUNDIN MA'AURATA by Baban Manar Alqasim

This is a research study examined to address the issues, challenges and problems faced by a marri... more This is a research study examined to address the issues, challenges and problems faced by a married couples. The data were collected through discussion between the researcher and participants.

Research paper thumbnail of APHASIA AND LEARNING DISABILITIES: PSYCHOLINGUISTICS PERSPECTIVES

Nasarawa State University, Keffi, 2018

APHASIA AND LEARNING DISABILITIES: A PSYCHOLINGUISTICS PERSPECTIVES BY AHMAD USAINI UMAR 070665... more APHASIA AND LEARNING DISABILITIES: A PSYCHOLINGUISTICS PERSPECTIVES

BY

AHMAD USAINI UMAR
07066512609
auumar89@gmail.com
M.Ed STUDENT, SPECIAL EDUCATION, BAYERO UNIVERSITY, KANO

AND

BINTA USAINI UMAR
07039898451
bintausaini@yahoo.com
JIGAWA STATE COLLEGE OF EDUCATION, 1002 GUMEL

Being a Paper for Presentation at the 1st National Conference on Learning Disabilities: a Multi-Disciplinary Engagement
Venue; Nasarawa State University, Keffi
Date: 24th -28th Sept. 2018

Abstract
Naturally language is a gift to humanity which plays a vital role to the existence and continuity of man and his developmental areas. This system is acquired right from the early years of age, and follows sequentially one stage after the other until it is fully developed. Despite this fact, some people may find it difficult to express their feelings and thoughts due to language disorder technically referred to as Aphasia. With this in mind, the paper looks at this issue from the psycholinguistics perspectives. It starts with an introduction, concepts of learning disabilities and aphasia as well as types of aphasia. Language development with particular focus on psycholinguistics perspectives has been clearly expressed. The paper concluded by drawing attention of both parents and educators on the need to understand that children whose language has not been fully developed may likely have aphasia and thus experience learning disability especially in speech and language.
Keywords: learning disabilities, aphasia, language development.

Papers by Ahmad Usaini Umar

Research paper thumbnail of Temperature Dependant Structural and Electrical Properties of ZnO Nanowire Networks

Journal of Nanoscience and Nanotechnology, 2012

In this paper, we report a successful growth of zinc oxide nanowire networks by simple thermal ev... more In this paper, we report a successful growth of zinc oxide nanowire networks by simple thermal evaporation process by using metallic zinc powder in the presence of oxygen. The morphological investigations of the synthesized nanowire networks are conducted by using field emission scanning electron microscopy (FESEM) which reveals that the grown products are in high-density over the whole substrate surface and possessing nanowire networks like structures. The structural and compositional properties of the grown nanowire networks are analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS), respectively which confirm that the synthesized products are well-crystalline, with wurtzite hexagonal phase ZnO. The as-grown ZnO nanowire networks grown on silicon substrate are utilized to fabricate n-ZnO/p-Si heterojunction diode and presented in this paper. The I-V characteristics of the fabricated heterojunction diode at different temperatures (77 K-477 K) are also investigated. High values of quality factor, which are obtained from this study, indicate a non-ideal behavior of the fabricated device. The mean barrier height of ∼0.84 eV is also estimated and presented in this paper.

Research paper thumbnail of KUNDIN MA'AURATA by Baban Manar Alqasim

This is a research study examined to address the issues, challenges and problems faced by a marri... more This is a research study examined to address the issues, challenges and problems faced by a married couples. The data were collected through discussion between the researcher and participants.

Research paper thumbnail of APHASIA AND LEARNING DISABILITIES: PSYCHOLINGUISTICS PERSPECTIVES

Nasarawa State University, Keffi, 2018

APHASIA AND LEARNING DISABILITIES: A PSYCHOLINGUISTICS PERSPECTIVES BY AHMAD USAINI UMAR 070665... more APHASIA AND LEARNING DISABILITIES: A PSYCHOLINGUISTICS PERSPECTIVES

BY

AHMAD USAINI UMAR
07066512609
auumar89@gmail.com
M.Ed STUDENT, SPECIAL EDUCATION, BAYERO UNIVERSITY, KANO

AND

BINTA USAINI UMAR
07039898451
bintausaini@yahoo.com
JIGAWA STATE COLLEGE OF EDUCATION, 1002 GUMEL

Being a Paper for Presentation at the 1st National Conference on Learning Disabilities: a Multi-Disciplinary Engagement
Venue; Nasarawa State University, Keffi
Date: 24th -28th Sept. 2018

Abstract
Naturally language is a gift to humanity which plays a vital role to the existence and continuity of man and his developmental areas. This system is acquired right from the early years of age, and follows sequentially one stage after the other until it is fully developed. Despite this fact, some people may find it difficult to express their feelings and thoughts due to language disorder technically referred to as Aphasia. With this in mind, the paper looks at this issue from the psycholinguistics perspectives. It starts with an introduction, concepts of learning disabilities and aphasia as well as types of aphasia. Language development with particular focus on psycholinguistics perspectives has been clearly expressed. The paper concluded by drawing attention of both parents and educators on the need to understand that children whose language has not been fully developed may likely have aphasia and thus experience learning disability especially in speech and language.
Keywords: learning disabilities, aphasia, language development.

Research paper thumbnail of Temperature Dependant Structural and Electrical Properties of ZnO Nanowire Networks

Journal of Nanoscience and Nanotechnology, 2012

In this paper, we report a successful growth of zinc oxide nanowire networks by simple thermal ev... more In this paper, we report a successful growth of zinc oxide nanowire networks by simple thermal evaporation process by using metallic zinc powder in the presence of oxygen. The morphological investigations of the synthesized nanowire networks are conducted by using field emission scanning electron microscopy (FESEM) which reveals that the grown products are in high-density over the whole substrate surface and possessing nanowire networks like structures. The structural and compositional properties of the grown nanowire networks are analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS), respectively which confirm that the synthesized products are well-crystalline, with wurtzite hexagonal phase ZnO. The as-grown ZnO nanowire networks grown on silicon substrate are utilized to fabricate n-ZnO/p-Si heterojunction diode and presented in this paper. The I-V characteristics of the fabricated heterojunction diode at different temperatures (77 K-477 K) are also investigated. High values of quality factor, which are obtained from this study, indicate a non-ideal behavior of the fabricated device. The mean barrier height of ∼0.84 eV is also estimated and presented in this paper.