Multiple Factorizations of Bivariate Linear Partial Differential Operators

We study the case when a bivariate Linear Partial Differential Operator (LPDO) of orders three or four has several different factorizations. We prove that a third-order bivariate LPDO has a first-order left and right factors such that their symbols are co-prime if and only if the operator has a factorization into three factors, the left one of which is exactly the initial left factor and the right one is exactly the initial right factor. We show that the condition that the symbols of the initial left and right factors are co-prime is essential, and that the analogous statement "as it is" is not true for LPDOs of order four. Then we consider completely reducible LPDOs, which are defined as an intersection of principal ideals. Such operators may also be required to have several different factorizations. Considering all possible cases, we ruled out some of them from the consideration due to the first result of the paper. The explicit formulae for the sufficient conditions for the complete reducibility of an LPDO were found also

PERTUMBUHAN DAN TINGKAT MORBIDITAS PADA BAYI USIA 7-12 BULAN BERDASARKAN STATUS PEMBERIAN ASI DI WILAYAH PUSKESMAS GILINGAN KECAMATAN BANJARSARI SURAKARTA

Introduction: Breastfeeding is the best food for infants, especially in their early life. Breastfeeding can assist the growth process and also protect infants from various infectious diseases such as Diarrhea and Acute Respiratory Infection (ARI). Objective: To determine the effect of breastfeeding status on growth and morbidity in infants aged 7-12 months at the Primary Health Service Gilingan. Methods: This study used a retrospective cohort study design, conducted in April 2015, at the integrated service center in Primary Health Service Gilingan. The total sample in this study were 58 respondents, the sampling method used was Consecutive Sampling. The research instruments were a questionnaire of exclusive breastfeeding, morbidity and KMS (Health Care Card). Analysis Techniques used Chi Square test. Results: The research found that there are no effect of breastfeeding status on the growth of infants aged 7-12 months with the value of p = 0.378 RR 1.667 (95% CI = 0.697 to 3.984). There are no effect of the status of breastfeeding on the incidence of Acute Respiratory Infection (ARI) in infants aged 7-12 months with the value of p = 0.066 RR 1.800 (95% CI = 1.011 to 3.204). There are no effect of breastfeeding status on the incidence of diarrhea in infants aged 7-12 months with the value of p = 0.564 RR 1.158 (95% CI = 0.829 to 1.618). Conclusion: Breastfeeding status has no effect on the growth of babies, incidence of ARI and diarrhea in infants aged 7-12 months at the Primary Health Service Gilingan Banjarsari Surakarta

Hubungan Antara Asupan Lemak, Asupan Serat Dan Status Gizi Terhadap Siklus Menstruasi Remaja Kelas X Dan XI Di SMA Muhammadiyah 1 Surakarta

Introduction: Menstruation happen between 6-10 years old, usually 12 years old. Menstruation cycle that irregular was normally when it is happen during the first twenty years before the first menstruation. Fat intake and nutrition status correlation with changes in hormone steroid value that factor in the proccess of setting menstruation cycle. Objective: The purpose of this research is to know corelation between fat intake, fiber intake and nutrition status for menstruation cycle for teenagers class X and XI at SMA MUHAMMADIYAH 1 SURAKARTA. Research method: This research used observational with crossectional approach. Sample used was a student class X and XI at SMA MUHAMMADIYAH 1 SURAKARTA that has menstruation. Taking sample with proportional random sampling. Menstruation cycle can obtain with questioners while fiber intake and fat used food frequency semi quantitative (ffq) method. Results: This research showed that more than half of the study subjects with irregular menstrual cycles have fat intake more categories, which is 59.3 %, with p = 0.710. More than half of the study subjects with regular menstrual cycles have good fiber intake category, which is 60 %, with p = 0.326. And More than half of the study subjects with irregular menstrual cycles have more nutrition status, which is 88.2 %, with p = 0.03. Conclusion: No corelation fat intake and fiber intake with menstruation cycle at SMA Muhammadiyah 1 Surakarta. Any corelation nutrition status with menstruation cycle at SMA Muhammadiyah 1 Surakarta

Hubungan Antara Pengetahuan Ibu dan Usia Awal Pemberian MP ASI Dengan Lama Kejadian Diare Pada Bayi Usia 8-12 Bulan di Puskesmas Colomadu 1 Karanganyar

Pendahuluan : Diare pada usia 6-24 bulanmempunyai pengaruh yang buruk terhadap pertumbuhan bayi sehingga dapat mengakibatkan terjadinya malnutrisi. Kejadian diare pada kelompok umur balita di Jawa tengah sebanyak 5,4%.Prevalensi kejadian diare pada bayi 0-11 bulan di Puskesmas Colomadu 1 Kabupaten Karanganyar dari bulan Oktober 2014-Januari 2015 sebanyak 32%. Tujuan : penelitian adalah mengetahui hubungan antara pengetahuan ibu tentang diaredan usia awal pemberian MP ASI dengan kejadian diare pada bayi usia 8-12 bulan. Metode penelitian : Penelitian ini menggunakan rancangan studi cross sectional yang dilakukan pada bulan Juni 2015, di posyandu wilayah Colomadu 1. Total sampel pada penelitian ini sebanyak40 responden yang diambil dengan teknik Simple Random Sampling. Instrumen penelitian berupa kuesioner pengetahuan, formulir pemberian MP ASI dan formulir kejadian diare. Teknik analisis uji adalah Spearman’s. Hasil : Hasil penelitian ini tidak adahubungan antara pengetahuan ibu tentang diare dengan lama kejadian diare pada bayi usia 8-12 bulan (p=0,233) dan ada hubungan antara usia awal pemberian MP ASIdengan lama kejadian diare pada bayi usia 8-12 bulan (p=0,042). Kesimpulan : tidak ada hubungan antara pengetahuan ibu tentang diare dengan lama kejadian diare pada bayi usia 8-12 bulan dan ada hubungan antara usia awal pemberian MP ASIdengan lama kejadian diare pada bayi usia 8-12 bulan. Oleh karena itu disarankan agar tenaga kesehatan lebih meningkatkan pengawasan dan pendampingan praktek makanan pendamping ASI di masyarakat

FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN TINGKAT STRES KERJA PERAWAT INSTALASI GAWAT DARURAT DI RSUD.DR. MOEWARDI SURAKARTA

Peran perawat sangat penting karena sebagai ujung tombak di Instalasi Gawat Darurat (IGD) dan rawat inap, perawat instalasi gawat darurat (IGD) perawat bekerja di suatu daerah staf dan dilengkapi untuk penerimaan dan perawatan orang dengan kondisi yang membutuhkan perawatan medis segera, termasuk penyakit serius dan trauma. Kondisi kerja perawat di ruang gawat darurat meliputi beban kerja, hubungan dan interaksi antara perawat dan pasien, tipe kepribadian merupakan stresor pada timbulnya stress pada perawat di ruang gawat darurat. Penelitian ini bertujuan untuk mengetahui tentang faktor – faktor yang berhubungan dengan tingkat stres kerja perawat Instalasi Gawat Darurat di RSUD. Dr.Moewardi Surakarta. Metode penelitian ini merupakan penelitian deskriptif analitik dengan rancangan cross sectional. Populasi penelitian adalah perawat pelaksana Instalasi gawat darurat sebanyak 61 orang perawat Instalasi gawat darurat di RSUD.Dr.Moewardi Surakarta. Sampel penelitian sejumlah 61 perawat Pelaksana Instalasi gawat darurat dengan teknik sampling total sampling. Instrumen penelitian adalah kuesioner. Data yang terkumpul dianalisis dengan korelasi kendall tau dan regresi linier berganda. Hasil penelitian menunjukkan bahwa (1) terdapat hubungan antara beban kerja dengan tingkat stres kerja perawat Instalasi gawat darurat (p-value = 0,002), (2) terdapat hubungan antara tipe kepribadian dengan tingkat stres kerja perawat Instalasi gawat darurat (p-value = 0,021), (3) terdapat hubungan antara interaksi perawat dengan tingkat stres kerja perawat Instalasi gawat darurat (p-value = 0,002), dan (4) variabel beban kerja merupakan faktor yang paling dominan berhubungan dengan tingkat stres kerja perawat Instalasi Gawat Darurat dengan koefisien regresi 0,263. Saran dengan demikian perlu kiranya menambah tenaga perawat,dan membina interaksi yang baik dengan rekan tim kesehatan lai

Repeatability of self-report measures of physical activity, sedentary and travel behaviour in Hong Kong adolescents for the iHealt(H) and IPEN- adolescent studies

published_or_final_versio

Dielectric relaxation phenomena of alkyl acrylate on complexation with phenol dissolved in carbon tetrachloride under static and high frequency electric field

Double relaxation times 2 and 1 due to whole molecular rotation and the flexible parts of the binary (jk) polar mixture of alkyl acrylate (j) and phenols CCl4 (i) at 35ᵒC are estimated using susceptibility data under 9.37 GHz electric field. Five systems out of twelve exhibit 2, 1 and µ2, µ1. 2’s of all systems show gradual increase with the chain length of esters offering hindrance to the rotation of the molecule. The relative contributions c1 and c2 due to 1 and 2 for five systems in terms of and curve at are estimated along with symmetric s, characteristics cs establishing the symmetric distribution of relaxation behavior. The estimated µ's and 2's agreed with the reported and measured values. The solute-solute and solute-solvent molecular associations through H-bonding are also as certained

Persistence of Covalent Bonding in Liquid Silicon Probed by Inelastic X-ray Scattering

Metallic liquid silicon at 1787K is investigated using x-ray Compton scattering. An excellent agreement is found between the measurements and the corresponding Car-Parrinello molecular dynamics simulations. Our results show persistence of covalent bonding in liquid silicon and provide support for the occurrence of theoretically predicted liquid-liquid phase transition in supercooled liquid states. The population of covalent bond pairs in liquid silicon is estimated to be 17% via a maximally-localized Wannier function analysis. Compton scattering is shown to be a sensitive probe of bonding effects in the liquid state.Comment: 5pages, 3 postscript figure