Antisymmetric magnetoresistance of the SrTiO3/LaAlO3 interface

The longitudinal resistance $R_{xx}$ of the SrTiO3/LaAlO3 interface with magnetic fields applied perpendicular to the interface has an antisymmetric term (namely, $R_{xx}(H)\neq R_{xx}(-H)$) which increases with decreasing temperature and increasing field. We argue that the origin of this phenomenon is a non-homogeneous Hall effect with clear contribution of an extraordinary Hall effect, suggesting the presence of non-uniform field-induced magnetization

Effect of Online Purchase

The purpose of this research are to find out the effect of promotion on purchasing decisions in online stores and product quality's effect. The method used in this research is qualitative. Product quality is a product with ability to meet predetermined needs. Promotion is the activity of offering product to consumers. The purchasing decisions is a final result in buyer's determination. The result of this research shows that many people prefer to instead of shopping  at offline stores

Profil Kemampuan Matematika Dasar Mahasiswa Program Studi Pendidikan Matematika Tahun Akademik 2013/2014

Kemampuan Matematika Dasar adalah kemampuan yang sangat penting dan harus dimiliki setiap mahasiswa sebagai bekal untuk menempuh perkuliahan di program studi Pendidikan Matematika. Tujuan penelitian ini adalah untuk mengetahui bagaimana profil kemampuan matematika dasar mahasiswa baru jurusan Pendidikan Matematika tahun akademik 2013/2014. Subjek penelitian berjumlah 133 mahasiswa, 92 berasal dari jurusan IPA dan 41 dari non-IPA. Hasil penelitian menunjukkan bahwa kemampuan matematika dasar mahasiswa baru berada pada kategori rendah; kemampuan matematika dasar mahasiswa baru yang berasal dari jurusan IPA berada pada kategori rendah dan kemampuan matematika dasar mahasiswa baru yang berasal dari jurusan non-IPA berada pada kategori sangat rendah

Efektifitas Counterpressure Terhadap Penurunan Intensitas Nyeri Kala I Fase Aktif Persalinan Normal Di Rumah Sakit Advent Manado

Latar Belakang :Kondisi nyeri persalinan membuat sebagian ibu memilih cara yang paling gampang dan cepat untuk menghilangkan nyeri persalinan. Survei awal yang yang dilakukan pada 23 ibu inpartu di Rumah Sakit Advent Manado didapatkan 3 ibu yang memilih untuk dilakukan operasi untuk menghilangkan nyeri persalinan dan 2 ibu yang memilih untuk dilakukan epidural anesteri untuk menurunkan intensitas nyeri persalinan. Nyeri persalinan dapat ditangani dengan cara sederhana seperti counterpressureTujuan untuk mengidentifikasi intensitas nyeri ibu inpartu kala I fase aktif persalinan normal sebelum dan sesudah dilakukan countepressure.Metode : penelitian ini bersifat deskriptif analitik yang berupaya mencari pengaruh antara variabel. Menggunakan desain penelitian One-Group Pretest-Postest dengan jumlah populasi 110 orang dan sampel 15responden. Analisa data menggunakan uji Paired Samples T Test.Hasil penelitian : Menunjukkan nyeri persalinan sebelum dilakukan masase counterpressure berada pada skala 9-10 (100%) . dan setelah dilakukan masase counterpressure nyeri menurun paling besar pada skala 3-6 sebanyak 13 responden (86,7%). Analisa data menunjukkan signifikansi lebih kecil dari 5% (p=0,000<0,05).Kesimpulan : counterpressure efektif untuk menurunkan intensitas nyeri kala I fase aktif persalinan normal di rumah sakit advent manad

Impact of sub-thalamic nucleus deep brain stimulation on dual tasking gait in Parkinson’s disease

Background: The beneficial effects of bilateral sub-thalamic nucleus deep brain stimulation on motor function and gait in advanced Parkinson’s disease are established. Less is known about the effect of stimulation on cognitive function and the capacity to walk while dual tasking, an ability that has been related to fall risk. Everyday walking takes place in complex environments that often require multi-tasking. Hence, dual tasking gait performance reflects everyday ambulation as well as gait automaticity. The purpose of this study was to examine the impact of sub-thalamic nucleus deep brain stimulation on dual task walking in patients with advanced Parkinson’s disease. Methods: Gait was assessed using a performance-based test and by quantifying single-task and dual task walking conditions in 28 patients with advanced Parkinson’s disease. These tests were conducted in 4 conditions: “OFF” medication, with the stimulator turned on and off, and “ON” medication, with the stimulator turned on and off. A previously validated, computerized neuro-psychological battery assessed executive function, attention and memory “OFF” and “ON” deep brain stimulation, after subjects took their anti-Parkinsonian medications. Results: Stimulation improved motor function and the spatiotemporal parameters of gait (e.g., gait speed) during both single-task and dual task walking conditions. Attention improved, but executive function did not. The dual task effect on gait did not change in response to stimulation. For example, during serial 3 subtractions, gait speed was reduced by -0.20 ± 0.14 m/sec while OFF DBS and OFF meds and by -0.22 ± 0.14 m/sec when the DBS was turned on (p = 0.648). Similarly, ON medication, serial 3 subtractions reduced gait speed by -0.20 ± 0.16 m/sec OFF DBS and by -0.22 ± 0.09 m/sec ON DBS (p = 0.543). Conclusions: Bilateral sub-thalamic nucleus deep brain stimulation improves motor symptoms, certain features of gait and even some aspects of cognitive function. However, stimulation apparently fails to reduce the negative impact of a dual task on walking abilities. These findings provide new insight into the effects of deep brain stimulation on gait during cognitively challenging conditions and everyday walking

PENGARUH BAKAT DAN DUKUNGAN ORANG TUA TERHADAP MINAT MAHASISWA MEMILIH JURUSAN PENDIDIKAN EKONOMI DI UNIVERSITAS ISLAM NEGERI SULTAN SYARIF KASIM RIAU

ABSTRAK Seri Susanti (2020): Pengaruh Bakat dan Dukungan Orang Tua terhadap Minat Mahasiswa Memilih Jurusan Pendidikan Ekonomi di Universitas Islam Negeri Sultan Syarif Kasim Riau Tujuan penelitian ini adalah untuk mengetahui pengaruh bakat dan dukungan orang tua terhadap minat mahasiswa memilih jurusan Program Studi Pendidikan Ekonomi di Fakultas Tarbiyah dan Keguruan Universitas Islam Negeri Sultan Syarif Kasim Riau. Adapun yang melatar belakangi penelitian ini adalah adanya mahasiswa tidak memilih jurusan sesuai keinginan diri sendiri dan sebagian mahasiswa tidak memilih Jurusan Pendidikan Ekonomi pada pilihan pertama. Jenis penelitian ini adalah penelitian kuantitatif yang berkarakter probabilistic. Populasi dalam penelitian ini adalah seluruh mahasiswa Pendidikan Ekonomi, sedangkan sampelnya mahasiswa semester 4 angkatan 2018 yang berjumlah 115 mahasiswa. Subjek penelitian ini adalah mahasiswa Pendidikan Ekonomi dan objeknya adalah pengaruh bakat dan dukungan orang tua terhadap minat mahasiswa memilih Jurusan Pendidikan Ekonomi di Universitas Islam Negeri Sultan Syarif Kasim Riau. Teknik pengumpulan data yang digunakan angket dan dokumentasi, sedangkan teknik analis datanya adalah Regresi linier Berganda. Berdasarkan hasil analisis data nilai F = 54,184 > 3,08 (nilai F tabel F(0,05;2;43) = 3,08) dan sig = 0,000 < 5 %, jadi Ho ditolak dan Ha diterima. Berdasarkan hasil ini dapat disimpulkan bahwa variabel bakat dan dukungan orang tua mempunyai pengaruh yang signifikan terhadap minat mahasiswa memilih jurusan pendidikan ekonomi di Universitas Islam Negeri Sultan Syarif Kasim Riau. Kata Kunci : Bakat, Dukungan Orang Tua, Minat Memilih Jurusa

Quality assessment of local and franchise beef and chicken burgers

Six brands of local beef and chicken burgers, three brands of franchise beef and two brands of franchise chicken burgers were evaluated for proximate composition, myoglobin and meat content, colour (L, a, b values) and microbiology composition i.e. Total Plate Count (CFU/gm), Coliform and Escherichia coli Counts (MPN/gm), Staphylococus aureus Count (CFU/gm) and presence of Salmonella sp. All franchise beef burgers had higher protein and moisture contents (except burger C) and lower carbohydrate content than the local brands. No significant differences (p > 0.05) in fat, ash and crude fibre contents were observed between local brands and franchise beef burgers. Most local brands of chicken burgers had lower levels of protein and moisture and higher levels of fat, fibre and carbohydrate than the franchises. No significant differences (p > 0.05) in ash content was observed between the local brands and franchise chicken burgers. All beef burgers had low myoglobin and meat contents «65%) with the exception of AI, FI and GI burgers. Chicken burgers, EI, FI and franchise burger B had higher meat content (>65%) than the others. All beef and chicken burgers had higher 'L' values which ranged between 45.13 % to 53.68% and 62.75 % to 72.48% respectively except FI which was darker. Local brands of beef burgers had a higher 'a' value compared to the franchises and all chicken burgers had a low 'a" value except FI which was redder. Low Total Plate Count, Coliform and E. coli counts were detected in all burger samples. S. aureus counts in most local brands of beefand chicken burger samples were higher than the franchises which ranged from 2 to 11 CFU/gm sample and 6 to 22 CFU/gm sample respectively. Salmonella sp was not present in all burger samples