scholarly journals Hearing Amplification Improves Eye Movements: A Case Study

2020 ◽  
Vol 5 (3) ◽  
pp. 1-8
Author(s):  
Zoï Kapoula ◽  

Background: Using two different approaches, we study the possible interaction between the sound and the preparation and execution of eye movements. The first approach deals with the sensory modalities of the target to which eye movements are made, the second with the hearing amplification of the subject. Material: Saccades and vergence were tested for a healthy 19-year-old student performing his internship in the lab. Tests with visual vs audiovisual targets were done. The normal hearing participant performed all tests with a hearing bilateral device that was adjusted in different conditions either at zero (no amplification), moderate amplification, or high amplification. Experimentations were made over a month, and the different tests were executed following a Latin square design. Results: We found statistical differences between eye movements towards audio-visual targets and visual targets in the absence of hearing amplification. The presence of the sound component on the stimulus improved the preparation and execution of saccades and impacted the execution of vergence. The hearing amplification has a differential impact on eye-movements towards visual targets. For vergence, it significantly reduced the amplitude of convergence. For saccades, it increased the amplitude and decreased the latency. These results could be due to an arousal state elicited by the amplifying background noise and sound coming from the participant himself. Conclusion: This pilot study opens the investigation of the different interactions between sound and saccade and vergence eye movements. We hope that these results will inspire other studies.

2021 ◽  
Vol 19 (4) ◽  
pp. 468-473
Author(s):  
Y. Y. Lahun ◽  
◽  
E. V. Mahiliavets ◽  
A. M. Khombak ◽  
K. H. Lahun ◽  
...  

Background. Cystic lesions of the spleen are not an uncommon pathology, however, until now clear criteria for the scope of surgical interventions are not clearly defined and depend on a number of anatomical and clinical features of this pathology, and laparoscopic resection is still a surgical challenge. Purpose. Preliminary analysis of the results of laparoscopic resection of spleen cysts, as well as the study of the current literature on the subject. Material and methods. This article presents a clinical case from the authors' personal experience with the diagnosis and treatment of a patient with a spleen cyst. Laparoscopic method was used in surgical treatment. In selecting it, a number of relevant medical literature was studied and analyzed. Results. As a result of a successful laparoscopic resection the patient managed to save such an important organ for homeostasis maintenance as the spleen. Postoperative complications were also avoided. Conclusions. Organ-preserving and minimally invasive interventions should remain the priority at the current stage of surgery development. In the treatment of such pathology as spleen cysts, planned approach is preferable, which allows for maximum preoperative diagnosis. It should take into account the etiology and localization of the cyst, as well as the peculiarities of blood supply to the spleen in a particular patient.


2020 ◽  
Vol 5 (3) ◽  
pp. 1-9
Author(s):  
Zoï Kapoula ◽  

Most of the previous literature regarding eye movements use visual stimuli alone. However, in real life, visual and auditory stimuli occur together frequently. It has been shown that a sound presented just before or simultaneously with the visual target reduces the latency of the saccades. The present study investigates the effect of a sound presented shortly before the LED visual target for three types of eye movements: saccades, vergences and combined eye movements. Fourteen participants (6 women, mean age: 22.6 +/- 0.62 years) took part in the study. Each type of eye movements was tested in two conditions: one with visual LED targets alone, the other with a sound coming for a buzzer adjacent to the LED, and preceding by 50 ms the onset of the LED target (auditory-visual target). Eye movements were recorded at 220 Hz for each eye with the Eyeseecam binocular devicehttps://www.eyeseetec.de/eyeseecam-sci/). The results confirm that the sound significantly reduces the latency of the saccades. In contrast, for convergence or divergence the sound did not decrease the latency but it did increase the velocity and reduced the duration of such movements significantly. For combined saccade vergence movements particularly leftward, the sound had multiple effects on the saccade component: it decreased the duration of the saccade component and reciprocally increased its velocity but also reduced its latency. Such mixed effects on latency duration and velocity of the saccade component favor the hypothesis that saccade components of combined eye movements are subtended by a co-activation of both, saccade and vergence brainstem generators. The differential benefit from the sound according to the type of eye movements is of theoretical and clinical interest.


sjesr ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 205-213
Author(s):  
Syed Akram Ali Shah ◽  
Prof. Dr. Muhammad Saleem Rahpoto ◽  
Dr. Ghulam Muhammad Mangnejo

Hunger starvation, natural disasters, droughts and the clan enmities make people to migrate from one region to another region. Also sometimes people migrate as they inherit the habit, of migration. This research paper is aimed to study the socio-economic implication of the seasonal employment in Khairpur in date’s fruit season regarding nomads coming in the season and the implications of the migration on the life of the indigenous people as well as on the nomad’s life. The subject material has been collected through the field survey and the interviews conducted by the stakeholders, like the growers, traders, nomads, and those with whom the nomads interact during their stay in District Khairpur. District Khairpur is situated in Sindh Province of Pakistan is one of the most opulent District, it is embedded with the surface as well as mineral resources. But, its fame is due to date’s fruit which is the major factor of the nomadic flow into this district. Also, the date’s season has proved to be poverty alleviation than any other factor. The research results show that every year nearly 3 million to 3.5 million people come to this district and each year almost 2 Billion Pak Rupees are being taken away to different regions as to be the remittances. Besides, the nomadic flow not only proves to be beneficial for the dates fruit growers but also for the merchants and the vendors who also earn almost double in the season of date’s fruit. Especially the hotels and vegetable shops become almost short of the consumers' goods in the season. Finally, some measures are proposed and a brief conclusion is given herewith. This paper also has analyzed the determinants and the consequences of nomadic migration into District Khairpur.


2019 ◽  
Vol 3 (2) ◽  
pp. 41-47
Author(s):  
Darwani Darwani ◽  
M.Yacoeb Harun ◽  
Suhartati Suhartati

Konsep relasi dan fungsi merupakan pelajaran yang dianggap sulit diingat oleh siswa. Oleh karena itu, dibutuhkan suatu pembelajaran yang dapat membuat siswa aktif dan kreatif dalam mengkonstruksi ide-idenya melalui pendekatan untuk membentuk suatu pemahaman matematika. Dengan pendekatan Contextual Teaching and Learning (CTL) siswa diharapkan dapat dengan mudah memahami materi pelajaran yang dikaitkan dengan kehidupan sehari-hari siswa. Penelitian ini bertujuan untuk mengetahui keberhasilan belajar siswa menggunakan pendekatan CTL pada materi relasi dan fungsi di kelas VIII SMPN 1 Darussalam Aceh Besar. Rancangan penelitian yang digunakan dalam penelitian ini bersifat eksperimen semu dengan model rancangan one-shot case study dan menggunakan uji statistik, yaitu uji-t. Subjek dalam penelitian ini adalah siswa kelas VIII-1 SMPN 1 Darussalam sebanyak 22 siswa. Berdasarkan hasil analisis data statistik uji-t diperoleh bahwa hasil belajar siswa yang diajarkan melalui pendekatan CTL pada materi relasi dan fungsi mencapai taraf berhasil, kemampuan guru dalam mengelola pembelajaran sudah efektif dengan skor 4,22, aktivitas siswa untuk tiap-tiap kategori pengamatan aktif, serta respon siswa pada setiap komponen pembelajaran positif dengan skor rata-rata keseluruhan 3,25. Jadi, dapat disimpulkan bahwa pendekatan pembelajaran CTL berhasil diterapkan pada materi pembelajaran matematika khususnya pada materi relasi dan fungsi Kata kunci: Pendekatan CTL, Relasi dan Fungsi, Hasil Belajar  Relation and Fungsion are one of Mathematics concept that hardly retain in students’ memory. Therefore, it is important to have a learning activity which can make students become active and creative in constructing their ideas by utilizing an approach that can builds up students’ understanding of Mathematics. By using CTL, it is expected that the students can easily understand the learning subject. This is because CTL approach offers a way to relate the subject material to real life situation. The objective of this study is to know how successful students’ learning concerning the subjects of Relation and Fungtion through the use of  CTL to the second grade students at SMPN 1 Darussalam Aceh Besar. The design of this study is quasi experimantal study in form of one-shot case study and is using statistical test, that is T-Test. The subjects of the study are students class VIII-1 SMPN 1 Darussalam Aceh Besar which consits of 22 students. Students’ result on the subject Relation and Fungsion had achieved successful rate due to the use of CTL. Hence, it can be concluded that Contextual Teaching and Learning (CTL) approach is successfully implemented in the subject of Relation and Fungsion. Keywords:  Method of Contextual Teaching and Learning, Relation and Function, Learning outcomes


2015 ◽  
Vol 25 (1) ◽  
pp. 33-35 ◽  
Author(s):  
Kimberly R. Middleton ◽  
Regina Andrade ◽  
Steffany Haaz Moonaz ◽  
Charlene Muhammad ◽  
Gwenyth R. Wallen

There is growing evidence that yoga can be beneficial as an aspect of self-care for people with arthritis. However, yoga may be less acceptable to those from different cultures, socioeconomic backgrounds, and racial/ethnic identities. While implementing a feasibility/acceptability pilot study of yoga as self-care in minority communities, the subject of spirituality surfaced. This commentary shares the experience of the researchers and yoga teachers collaborating on the study and the larger conversation that ensued following the withdrawal of one of the study participants. It is an attempt to start a relevant and needed dialogue around yoga research as an integrative health modality, and why the underlying body-mind-spirit approach to yoga may sometimes serve as a barrier to participation for diverse populations suffering from arthritis.


Author(s):  
J. Temple Black ◽  
Jose Guerrero

In the SEM, contrast in the image is the result of variations in the volume secondary electron emission and backscatter emission which reaches the detector and serves to intensity modulate the signal for the CRT's. This emission is a function of the accelerating potential, material density, chemistry, crystallography, local charge effects, surface morphology and especially the angle of the incident electron beam with the particular surface site. Aside from the influence of object inclination, the surface morphology is the most important feature In producing contrast. “Specimen collection“ is the name given the shielding of the collector by adjacent parts of the specimen, producing much image contrast. This type of contrast can occur for both secondary and backscatter electrons even though the secondary electrons take curved paths to the detector-collector.Figure 1 demonstrates, in a unique and striking fashion, the specimen collection effect. The subject material here is Armco Iron, 99.85% purity, which was spark machined.


2019 ◽  
Vol 6 (1) ◽  
pp. 40-49
Author(s):  
Teresa Paiva

Background: The theoretical background of this article is on the model developed of knowledge transfer between universities and the industry in order to access the best practices and adapt to the study case in question regarding the model of promoting and manage innovation within the universities that best contribute with solution and projects to the business field. Objective: The development of a knowledge transfer model is the main goal of this article, supported in the best practices known and, also, to reflect in the main measurement definitions to evaluate the High Education Institution performance in this area. Methods: The method for this article development is the case study method because it allows the fully understanding of the dynamics present within a single setting, and the subject examined to comprehend what is being done and what the dynamics mean. The case study does not have a data collection method, as it is a research that may rely on multiple sources of evidence and data which should be converged. Results: Since it’s a case study this article present a fully description of the model proposed and implemented for the knowledge transfer process of the institution. Conclusion: Still in a discussion phase, this article presents as conclusions some questions and difficulties that could be pointed out, as well as some good perspectives of performed activity developed.


Author(s):  
Dr. Vidhyasri M ◽  
Dr. S. M. Pasha

Introduction: This is the case report of child who was diagnosed with LCA reported with complaints of large-amplitude, slow-frequency, roving nystagmus, frequent tendency to press on his eyes, enopthalmos, with completely normal ophthalmoscopic examination with normal appearing optic nerve and retina and has a non recordable ERG; considering this condition under the lines of Vataja Nanatmaja Vyadhi treatment was structured to render effective visual rehabilitation which showed marked results. Methods: 4 years old male child who was diagnosed with lebers congenital amaurosis was brought by his parents to Eye OPD, GAMC, Bengaluru. The presentation of this case includes bibliographic review of the subject, presentation of a clinical case and description of the importance of Ayurvedic prespective of handling of these patients. Results: The child showed improvement in fixing for light and also nystagmus showed marked improvement and there were considerable behavioural changes observed. Discussion: It is important to deepen the environment of the disease to know the possible implications in Ayurvedic management, recognize the magnitude of visual disability that our patient presents for the establishment of the treatment plan and provide an integral care of excellence in an interdisciplinary way in favor of visual rehabilitation of our patients and also help to restore quality of life with no potential risks of side effects.


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