PENGARUH PENYULUHAN TERHADAP PERUBAHAN PENGETAHUAN BAGI IBU-IBU PKK KELURAHAN PENGGARON LOR TENTANG PEMANFAATAN TANAMAN PISANG SEBAGAI MEDIA MENJAGA KESEHATAN GIGI DAN MULUT

Background: Banana counted as nearly perfect food since it contains six nutrients : water , sugar , proteins , fats , vitamins , and minerals . Because of that , bananas are often used as a staple food for most people because of its nutritional value. However, sometimes people do not realize the benefits of bananas as a whole , from leaves , fruits , flowers and stems of the bananas . Penggaron Lor society , still minimal in using the banana plant . Usually the community will sell fruit and leaves to the market , so that the results obtained from the banana plant community less than optimal. Method : This study is an observational analytic study . The research was done in the Village of Penggaron Lor Semarang , and was conducted in March-June 2014. The instrument in this research was primary data obtained directly from respondents through interviews using questionnaires distributed before and after counseling . To determine whether there are differences in knowledge before and after counseling on the benefits of banana plants as a medium for maintaining oral hygiene, statistical test Wilcoxon Sign Ranks test was conducted, and processed with SPSS. Result: The results of SPSS calculation because the data is not normal ( p value < 0.05), then the data was processed using the non-parametric test for two sample pairs , ie Wilcoxon Sign Ranks test , and obtained p value of 0.008 . This means that there was a significant difference between the mean value of the pre-test and post-test. Conclusion : there are differences in knowledge before and after counseling , counseling means that a significant impact on respondents' knowledge of the benefits of banana plants for maintain oral health.

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PENGARUH LATIHAN AEROBIK TERHADAP FORCED VITAL CAPACITY (FVC)PRIA DEWASA DENGANOVERWEIGHT

Jurnal e-Biomedik ◽

10.35790/ebm.1.1.2013.1624 ◽

2013 ◽

Vol 1 (1) ◽

Author(s):

Ester Florencia Sagay ◽

Hedison Polii ◽

Herlina I. S. Wungouw

Keyword(s):

Aerobic Exercise ◽

Forced Vital Capacity ◽

Vital Capacity ◽

Sampling Technique ◽

Mean Value ◽

Average Value ◽

Significant Difference ◽

Before And After ◽

Post Test ◽

The Mean

Abstract: Changes to respiratory function due to regular aerobic exercise will affect the value of pulmonary function, especially in Forced Vital Capacity (FVC). This research aimed to determine the effect of aerobic exercise on FVC overweight male students of Unsrat Medical Faculty. This research is analytic with design experimental, one group pre and post test design. The sampling technique used is non-purposive sampling technique. The research sample was taken from the students of the Faculty of Medicine 2009, Univercity of Sam Ratulangi who fulfill the inclusion criteria. Some 32 students were selected as research subjects. After giving informed consent, FVC measurement was done with the spirometer. After it was measured, they were given treatmen in the form aerobic exercise using a stationary bike for three weeks with frequency of exercise three times a week and exercise intensity for 30 minutes. We measured again FVC values after the exercise three times program. Normality test data showed significance for FVC value before treatment by 0.752, and after treatment by 0.912. Comparison of the average value before and after exercise were tested by using a paired test. Significant value for FVC is P = 0.084, means there is no significant difference between FVC values before and after exercise (P> 0.05). The mean FVC was 3.88 before treatment and after treatment the mean value was 4.00, an increase in the average value of 0.11. Conclusion:Aerobic Exercise on a regular basis using a stationary bike on the overweight male student can improve lung function in particular the mean FVC but there was no significant difference from the mean value. Keywords: FVC, Aerobic Exercise, Overweight. Abstrak: Perubahan fungsi pernapasan karena latihan aerobik secara teratur akan mempengaruhi nilai fungsi paru khususnya Forced Vital Capacity (FVC). Penelitian ini untuk mengetahui pengaruh latihan aerobik terhadap FVC mahasiswa pria Fakultas Kedokteran Unsrat dengan berat badan lebih.Penelitian ini bersifat analitik dengan rancangan eksperimental one grup pre and post test design. Pengambilan sampel dilakukan dengan teknik non purposive sampling. Sampel penelitian diambil dari Mahasiswa Fakultas Kedokteran Universitas Sam Ratulangi Angkatan 2009.Sejumlah 32 orang mahasiswa terpilih sebagai subjek penelitian dan dilakukan pengukuran FVC dengan Spirometer.Setelah itu diberikan perlakuan berupa latihan aerobik menggunakan sepeda statis selama tiga minggu dengan frekuensi latihan tiga kali seminggu dan intensitas latihan selama 30 menit.Selanjutnya dilakukan pengukuran kembali nilai FVC sesudah program latihan.Uji normalitas data menunjukkan nilai signifikansi untuk FVC sebelum perlakuan sebesar 0.752, dan sesudah perlakuan sebesar 0.912. Perbandingan nilai rata rata sebelum dan sesudah latihan diuji dengan menggunakan uji t berpasangan.Nilai signifikan untuk FVC adalah P = 0.084, berarti tidak terdapat perbedaan yang bermakna antara nilai FVC sebelum dan sesudah latihan (P > 0.05) .Nilai rerata FVC sebelum pelakuan adalah 3,88 dan nilai rerata sesudah perlakuan adalah 4,00, terjadi penigkatan nilai rerata sebesar 0,11.Simpulan:Latihan Aerobik menggunakan sepeda statis secara teratur dapat meningkatkan nilai rerata fungsi paru khususnya FVC tetapi tidak terdapat perbedaan yang bermakna dari nilai rerata tersebut. Kata Kunci: FVC, Latihan Aerobik, Berat Badan Lebih (Overweight).

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GROUNDSTROKE TRAINING MODEL BASED ON SITUATION GAME FOR FIELD TENNIS ATHLETES AGED 12-14 YEARS

GLADI JURNAL ILMU KEOLAHRAGAAN ◽

10.21009/gjik.125.09 ◽

2022 ◽

Vol 12 (05) ◽

pp. 426-439

Author(s):

Divya Zuhra ◽

Junaidi ◽

Nofi Marlina Siregar

Keyword(s):

Training Model ◽

P Value ◽

Game Situation ◽

Significant Difference ◽

Before And After ◽

Post Test ◽

Model Treatment ◽

The Mean ◽

The Difference ◽

Difference Test

This study aims to create a game situation-based groundstroke forehand and groundstroke backhand training model for tennis athletes aged 12-14 years and improve forehand and backhand skills using a game situation-based groundstroke training model for athletes aged 12-14 years. The research method used is the Research & Development Research & Development (R&D) Borg and Gall method. Subjects studied were 15 people and were athletes aged 12-14 years. The results of the pre-test test obtained an average of 31.73. Then, the post-test obtained an average of 40.00. The exercise correlation coefficient before and after the exercise model was given was 0.946 with a p-value of 0.00 < 0.05, so the conclusion was significant. In the mean difference test with SPSS, the mean = 8.26667 shows the difference between the pre-test and post-test, the result of t-count = 26,183, df = 19 and p-value = 0.00<0.05, which means there is a significant difference between before and after being given game situation based groundstroke training model treatment. Based on these results, it can be concluded that the game situation-based groundstroke training model for tennis athletes at the age of 12-14 years is effective and can improve the forehand groundstroke.

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Perbedaan Pengetahuan Siswa Tentang Penyakit Hepatitis A Sebelum Dan Sesudah Penyuluhan Di MTsN 02 Bondowoso Tahun 2015

Jurnal Ilmu Kesehatan ◽

10.32831/jik.v4i2.85 ◽

2017 ◽

Vol 4 (2) ◽

pp. 14

Author(s):

Putri Megasari

Keyword(s):

Hepatitis A ◽

Hepatitis Virus ◽

Sampling Technique ◽

Mean Value ◽

Test Design ◽

The World ◽

Before And After ◽

Post Test ◽

The Mean ◽

Paired T Test

Hepatitis has become a health problem in the world. The hepatitis virus infected many people. According to the teacher of MTsN 02 Bondowoso more than 20 students have hepatitis A viral infection. The purpose of this research was to know the differences of students' knowledge about hepatitis A before and after counseling in MTsN 02 Bondowoso 2015. This study used pre-experimental (pre-post test design). This study used stratified random sampling technique, 127 students from 270 sample involved this research,and 143 students was excluded. We used questionnaires to collect data. The results showed that the mean value of the students 'knowledge about hepatitis A before counseling in MTsN 02 Bondowoso 2015 was 83.96 with the lowest value of 37.5 and the highest value was 100. The mean value of the students' knowledge about hepatitis A after counseling in MTsN 02 Bondowoso 2015 was 93.21 with the lowest value waf 62.5 and the highest value was 100. Paired t test showed that t (-9.07) > t table (1.98), the null hypothesis (H0) was rejected. There was a difference between students' knowledge about hepatitis A before and after counseling in MTsN 02 Bondowoso 2015. This study showed that routine counseling by healthcare provider was important to prevent hepatitis A infection.; Keywords: counseling, knowledge of students, hepatitis

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Employing Personal Reading Logs through Short Stories to Enhance Students’ L2 Reading Comprehension Achievement

International Journal of Modern Languages And Applied Linguistics ◽

10.24191/ijmal.v3i2.7643 ◽

2019 ◽

Vol 3 (2) ◽

pp. 1

Author(s):

Eliyas Sulaiman Mohandas ◽

Nik Mastura Nik Ismail Azlan ◽

Salwa Othman ◽

Muhammad Aizat Azhari

Keyword(s):

Short Stories ◽

Reading Comprehension ◽

P Value ◽

L2 Reading ◽

Reading Score ◽

Paired Samples ◽

Significant Difference ◽

Post Test ◽

The Mean ◽

L2 Reading Comprehension

This study aims to investigate whether the use of six selected short stories throughout the duration of a 14-week course could enhance students’ reading comprehension achievement at the end of the semester. Out of the six short stories read, three were chosen as in-class assignments known as ‘Personal Reading Logs’ (hereafter, PRLs). One group of semester two Diploma students taking a reading skills course was selected through a convenience sampling method. A pre-test was conducted by having the students answer a past semester reading quiz of which the results would then be compared to their post-test (final reading exam) results. A paired samples t-test revealed no significant difference in the reading scores of the pre-test and the post-test, t (17) = -.265, p > .05. Since the p-value was bigger than 0.05, this indicated that the mean reading score of the post-test (M = 50.556) was not significantly higher than the mean reading score of the pre-test (M = 49.722). Therefore, the null hypothesis which stated that there was no difference in the mean score of the pre-test and post-test was retained. Overall, the result refuted the findings of other studies promoting the effectiveness of using short stories to enhance L2 reading comprehension achievement.

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Quality of life of obstetrics fistula patients before and after surgical repair in the Jimma University Medical Center, Southwest Ethiopia

BMC Women s Health ◽

10.1186/s12905-021-01360-y ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Tilahun Fufa Debela ◽

Zerihun Asefa Hordofa ◽

Aster Berhe Aregawi ◽

Demisew Amenu Sori

Keyword(s):

Quality Of Life ◽

Surgical Repair ◽

Obstetric Fistula ◽

Medical Center ◽

Mean Value ◽

Significant Difference ◽

Before And After ◽

The Mean ◽

Jimma University

Abstract Background The consequences of obstetric fistula on affected women are more than the medical condition. It has extensive physical, psychological, social, and economic consequences on them. Obstetric fistula affects the entire health and entire life of women. Women suffering from obstetric fistula are often abandoned by her partner, relatives, and the community. This study aimed to determine the quality of life of obstetrics fistula patients before and after surgical repair. Methods Institutional-based prospective, before and after study design was conducted in the Jimma University Medical Center from November 1, 2019–October 30, 2020. A face-to-face interview was conducted with fistula patients who visited Jimma University Medical center, fistula clinic during the study period. All fistula patients were included in the study. Accordingly, 78 women who underwent surgical repair were interviewed. The means and the standard deviation were computed using conventional statistics formulas. The unpaired t-test was used to compare two independent means, and one-way analysis of variance (ANOVA) was used to compare the quality of life before repair and after a successful repair. Linear regression analysis was done for identifying determinants of quality of life. A P value of 0.05 will be considered statistical significance. Result The overall quality of life of women was 58.17 ± 7.2 before the surgical repair and 71.20 ± 10.79 after surgical repair. The result indicates there is a significant difference in the mean value of pre and post-operative (P < 0.001). The overall satisfaction of women with their health status before the surgical repair was 22.5 ± 1.30and it has increased to 53.0 ± .90after surgical repair. The physical health dimension score was 16.51 ± 5.27 before the surgical repair while it has increased to 21.77 ± 5.38 after the surgical repair. The score of the social domain before the surgical repair was 5.19 ± 1.34 and it has increased to 7.13 ± 3.67 after the surgical repair. The score of the environmental health domain was 17.41 ± 2.89 before the surgery while it also increased to 21.65 ± 4.04 after the surgical repair. The results have shown there was a significant difference in the mean values of pre and post-operatives in both social and environmental scores (P < 0.001). The score of the psychological health domain before the surgery was 19.06 ± 1.46 and it was increased to 19.84 ± 3.21 after the surgical repair. The result showed there is a significant difference in mean value pre and post-operative (P = 0.048), though it is a slight improvement compared to other domains. Conclusion The overall quality of life of the patient with fistula was improved after successful surgical repair. Although all domains of quality of life had shown significant improvement after successful surgical repair, the psychological domain showed slight improvement.

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Assessment of the Tissue Response to Modification of the Surface of Dental Implants with Carboxyethylphosphonic Acid and Basic Fibroblastic Growth Factor Immobilization (Fgf-2): An Experimental Study on Minipigs

Biology ◽

10.3390/biology10050358 ◽

2021 ◽

Vol 10 (5) ◽

pp. 358

Author(s):

Javier Aragoneses ◽

Ana Suárez ◽

Nansi López-Valverde ◽

Francisco Martínez-Martínez ◽

Juan Manuel Aragoneses

Keyword(s):

Surface Treatment ◽

Test Group ◽

Mean Value ◽

Control Group ◽

P Value ◽

Implant Surface ◽

Bone Contact ◽

Bone Implant ◽

Significant Difference ◽

The Mean

The aim of this study was to evaluate the effect of implant surface treatment with carboxyethylphosphonic acid and fibroblast growth factor 2 on the bone–implant interface during the osseointegration period in vivo using an animal model. The present research was carried out in six minipigs, in whose left tibia implants were inserted as follows: eight implants with a standard surface treatment, for the control group, and eight implants with a surface treatment of carboxyethylphosphonic acid and immobilization of FGF-2, for the test group. At 4 weeks after the insertion of the implants, the animals were sacrificed for the histomorphometric analysis of the samples. The means of the results for the implant–bone contact variable (BIC) were 46.39 ± 17.49% for the test group and 34.00 ± 9.92% for the control group; the difference was not statistically significant. For the corrected implant–bone contact variable (BICc), the mean value of the test group was 60.48 ± 18.11%, and that for the control group, 43.08 ± 10.77%; the difference was statistically significant (p-value = 0.035). The new bone formation (BV/TV) showed average results of 27.28 ± 3.88% for the test group and 26.63 ± 7.90% for the control group, meaning that the differences were not statistically significant (p-value = 0.839). Regarding the bone density at the interthread level (BAI/TA), the mean value of the test group was 32.27 ± 6.70%, and that of the control group was 32.91 ± 7.76%, with a p-value of 0.863, while for the peri-implant density (BAP/TA), the mean value of the test group was 44.96 ± 7.55%, and that for the control group was 44.80 ± 8.68%, without a significant difference between the groups. The current research only found a significant difference for the bone–implant contact at the cortical level; therefore, it could be considered that FGF-2 acts on the mineralization of bone tissue. The application of carboxyethylphosphonic acid on the surface of implants can be considered a promising alternative as a biomimetic coating for the immobilization of FGF-2. Despite no differences in the new bone formation around the implants or in the interthread or peri-implant bone density being detected, the biofunctionalization of the implant surface with FGF-2 accelerates the mineralization of the bone–implant interface at the cortical level, thereby reducing the osseointegration period.

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Comparison of Virtual and Actual Education Models on the Learning of Internal Interns During the Pandemic of COVID-19

10.21203/rs.3.rs-506082/v1 ◽

2021 ◽

Author(s):

Azadeh Mottaghi ◽

Nazanin Alibeik ◽

Shokoufeh Savaj ◽

Behnam Shakiba ◽

Raheleh Alimoradzadeh ◽

...

Keyword(s):

Medical Students ◽

Good Alternative ◽

Educational Process ◽

Virtual Education ◽

P Value ◽

Educational Models ◽

Significant Difference ◽

Post Test ◽

E Learning ◽

The Mean

Abstract Background: Following the outbreak of coronavirus and its impact on the educational process of medical students, attention was paid to e-learning due to importance of education and research. The aim of present study is to evaluation of virtual and actual education models on the learning of internal interns during the pandemic of COVID-19. Results: The mean±SD age of the participants was 24.9±2.3 years, 46% of participants were men and 54% of them live in dormitory. Results of study shows that difference of pre-test and post-test score with actual and virtual education models in the male and female is significantly different (P value=0.020). Virtual education for men and actual education for women have resulted in higher difference scores in pre-test and post-test. Actual and virtual education models were no different in academic achievements of participants. Thus, the scores obtained in 9 areas did not make a significant difference between the two types of educational models.Discussion: Virtual and actual education methods for internal interns were examined and the results showed that there is no significant difference between these two methods in student output. Given the conditions that have created by COVID-19 disease in the world, it seems that the use of virtual education can be a good alternative to educating medical students so that education does not stop.

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Perbandingan Nilai Laju Endap Darah Antara Pengukuran Metode Manual Westergren Dan Alat Automatik Pada Sampel Darah Sitrat Penderita Tb Paru Di Rsud. Dr. Dradjat Prawiranegara Serang

Malahayati Nursing Journal ◽

10.33024/mnj.v3i3.4372 ◽

2021 ◽

Vol 3 (3) ◽

pp. 426-431

Author(s):

Destri Siti Juleha ◽

Deviani Utami ◽

Ade Utia Detty

Keyword(s):

Pulmonary Tuberculosis ◽

Sedimentation Rate ◽

Vertical Tube ◽

Mean Value ◽

Automatic Method ◽

Purposive Sampling ◽

Significant Difference ◽

Post Test ◽

Automatic Methods ◽

The Mean

ABSTRACTBackground: Erythrocytes Sedimentation Rate (ESR) is a test to determine the rate of erythrocytes settling blood containing anticoagulants in a vertical tube within a certain time. ESR is generally used to check and monitor for tissue damage, inflammation and indicate disease. ESR examination can be done by manual and automatic methods. LED levels in pulmonary TB patients generally have increased.Objectives: Knowing the difference in the measurement results of the erythrocytes sedimentation rate (ESR) between the Westergen manual and automatic methods in patients with pulmonary tuberculosis.Methods: Laboratory experiments with a post-test-only approach. The number of samples was 30 people and was taken by purposive sampling. The research data were obtained from the results of the ESR examination using the Westergren manual and automatic methods. Results: Examination of the sedimentation rate of healthy respondents used the Westergren method had an average of 9,40 mm/hour while in the automatic method 10,15 mm/hour. The examination of sedimentation rate of pulmonary tuberculosis respondents with the Westergren method had an average of 66,13mm/hour, while the Automatic method was 67,80 mm/hour. There was no significant difference in the mean value of ESR between the measurement method used manual Westergren and Automatic methods in patients with pulmonary tuberculosis ( p = 0,878). Conclusion: There is no significant difference in the mean value of ESR between measurements using the manual Westergren method and automatic in patients with pulmonary tuberculosis. Keywords: Erythrocytes Sedimentation Rate, Method, Westergren, Automatic PERBANDINGAN NILAI LAJU ENDAP DARAH ANTARA PENGUKURAN METODE MANUAL WESTERGREN DAN ALAT AUTOMATIK PADA SAMPEL DARAH SITRAT PENDERITA TB PARU DI RSUD. Dr. DRADJAT PRAWIRANEGARA SERANG TAHUN 2020 Latar Belakang: Laju Endap Darah (LED) adalah pemeriksaan untuk menentukan kecepatan eritrosit mengendap dalam darah yang berisi antikoagulan pada suatu tabung vertikal dalam waktu tertentu. LED pada umumnya digunakan untuk mendeteksi dan memantau adanya kerusakan jaringan, inflamasi dan menunjukan adanya penyakit. Pemeriksaan LED dapat dilakukan dengan metode manual dan automatik. Kadar LED pada penderita TB Paru umumnya mengalami peningkatan.Tujuan: Mengetahui perbedaan hasil pengukuran Laju Endap Darah (LED) antara metode manual Westergen dan Automatik pada Penderita TB Paru. Metodologi: Eksperimen laboratorik dengan pendekatan post test only. Jumlah sampel 30 orang dan diambil dengan purposive sampling. Data penelitian diperoleh dari hasil pemeriksaan LED menggunakan metode manual Westergren dan Automatik. Hasil: Pemeriksaan Laju Endap Darah pada responden sehat metode Westergren memiliki rata-rata 9,40 mm/jam sedangkan pada metode Automatik 10,15 mm/jam. Pemeriksaan Laju Endap Darah pada responden TB Paru metode Westergren memiliki rata-rata 66,13 mm/jam sedangkan pada metode Automatik 67,80 mm/jam. Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru (p = 0,878). Kesimpulan: Tidak terdapat perbedaan rata-rata nilai LED yang signifikan antara pengukuran menggunakan metode manual Westergren dan Automatik pada penderita TB Paru.Kata kunci: Laju Endap Darah, Metode, Westergren, Automatik

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PENURUNAN NYERI KEPALA PADA LANSIA DENGAN HIPERTENSI MENGGUNAKAN RELAKSASI AUTOGENIK DI KELURAHAN MERSI PURWOKERTO

Media Ilmu Kesehatan ◽

10.30989/mik.v7i2.229 ◽

2019 ◽

Vol 7 (2) ◽

pp. 104-113

Author(s):

Dwi Novitasari ◽

Ikit Netra Wirakhmi

Keyword(s):

The Elderly ◽

Wilcoxon Test ◽

Relaxation Technique ◽

P Value ◽

Common Symptom ◽

Parasympathetic System ◽

Significant Difference ◽

Before And After ◽

Autogenic Relaxation ◽

The Mean

Background: Headache in the occipital region is the most common symptom of hypertension, caused by enhanchement intra-cranial pressure and vasoconstriction resulting in decreased perfusion of cerebral tissue. This causes insomnia, decreased concentration and decreased ability of daily living activity. Autogenic relaxation causes vasodilation and a calm emotional response that increases the response of the parasympathetic system. This modulation stimulus can decrease perception of headache. Objective: The aims of this study was to find out how the reduction of headache on hypertension before and after autogenic relaxation. Methods: The design of this research was pre experimental with one group pretest-postest design approach. The sample are 38 patients with hypertension who complained of headache in Mersi Purwokerto. Selection has been using purposive sampling. Measurement of head pain using visual analog scale. Data analysis using Wilcoxon test. Results: The mean headache before the autogenic relaxation technique was 5.24, and the mean headache after autogenic relaxation technique was 3.47, including the range of moderate pain. There was a significant difference between headache before and after the autogenic relaxation technique with p value: 0,000. Conclusion: Autogenic relaxation can be used by the elderly with hypertension to reduce headache. Keywords: Autogenic relaxation, headache, hypertension.

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ANALISIS PERBEDAAN ABNORMAL RETURN DAN TRADING VOLUME ACTIVITY SAHAM SEBELUM DAN SESUDAH PERISTIWA GEMPA DI YOGYAKARTA TANGGAL 27 MEI 2006 (Sudi Kasus pada Perusahaan Asuransi Terdaftar di Bursa Efek Jakarta)

IQTISHODUNA ◽

10.18860/iq.v2i2.227 ◽

2011 ◽

Vol 2 (2) ◽

Author(s):

Lulu Nurul Istanti, SE., MM.,

Keyword(s):

Abnormal Return ◽

Trading Volume ◽

Stock Exchange ◽

Mean Value ◽

Volume Activity ◽

Significant Difference ◽

Before And After ◽

Insurance Firms ◽

The Mean ◽

Difference Test

This research presents an empirical analysis of difference between abnormal return and trading volume activity before and after earths-quake, in Yogyakarta at May 27, 2006. And examine its statistical properties. This research argues that there was difference between abnormal return and trading volume activity before and after quake. For this purpose, the mean difference test, using t-test, was applied to compare the mean value of abnormal return and trading volume activity before and after quake. The sample of this research consists of the insurance firms listed at the Jakarta Stock Exchange. Investigation on the sample firms involved periods of ten days before quake and ten days after quake. The results of this research indicate that there was no significant difference between the abnormal return and trading volume activity before and after quake. This evidence confirms that even did not positively influence abnormal return and trading volume activity as suggested theoretically.

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