Internal energy dissipation in Enceladus's ocean from tides and libration and the role of inertial waves

Enceladus is characterised by a south polar hot spot associated with a large outflow of heat, the source of which remains unclear. We compute the viscous dissipation resulting from tidal and libration forcing in the moon's subsurface ocean using the linearised Navier-Stokes equation in a 3-dimensional spherical model. We conclude that libration is the dominant cause of dissipation at the linear order, providing up to about 0.001 GW of heat to the ocean, which remains insufficient to explain the (about) 10 GW observed by Cassini. We also illustrate how resonances with inertial modes can significantly augment the dissipation. Our work is an extension to Rovira-Navarro et al. [2019] to include the effects of libration. The model developed here is readily applicable to the study of other moons and planets

Influence of Non-Markovian Dynamics in Thermal-Equilibrium Uncertainty-Relations

Contrary to the conventional wisdom that deviations from standard thermodynamics originate from the strong coupling to the bath, it is shown that in quantum mechanics, these deviations originate from the uncertainty principle and are supported by the non-Markovian character of the dynamics. Specifically, it is shown that the lower bound of the dispersion of the total energy of the system, imposed by the uncertainty principle, is dominated by the bath power spectrum and therefore, quantum mechanics inhibits the system thermal-equilibrium-state from being described by the canonical Boltzmann's distribution. We show that for a wide class of systems, systems interacting via central forces with pairwise-self-interacting environments, this general observation is in sharp contrast to the classical case, for which the thermal equilibrium distribution, irrespective of the interaction strength, is \emph{exactly} characterized by the canonical Boltzmann distribution and therefore, no dependence on the bath power spectrum is present. We define an \emph{effective coupling} to the environment that depends on all energy scales in the system and reservoir interaction. Sample computations in regimes predicted by this effective coupling are demonstrated. For example, for the case of strong effective coupling, deviations from standard thermodynamics are present and, for the case of weak effective coupling, quantum features such as stationary entanglement are possible at high temperatures.Comment: 9 pages, 3 figure

IMPLEMENTASI PEMBELAJARAN MATEMATIKA DENGAN STRATEGI RECIPROCAL TEACHING DAN RECIPROCAL LEARNING DITINJAU DARI KEMAMPUAN AWAL SISWA (Pada Siswa Kelas VII SMP N 2 Colomadu Kabupaten Karangayar)

Penelitian ini bertujuan untuk mendiskripsikan dan menganalisis: (1) perbedaan efek strategi pembelajaran terhadap prestasi belajar matematika, (2) perbedaan efek kemampuan awal siswa terhadap prestasi belajar matematika, (3) interaksi antara strategi pembelajaran reciprocal teaching dan reciprocal learning dan kemampuan awal siswa terhadap prestasi belajar matematika siswa. Populasi dalam penelitian adalah seluruh siswa kelas VII SMP N 2 Colomadu tahun ajaran 2010/2011. Sampel penelitian ini terdiri dua kelas. Teknik pengambilan sampel yang digunakan adalah cluster random sampling. Metode pengumpulan data yang digunakan adalah metode tes dan metode dokumentasi. Teknik analisis yang digunakan dalam penelitian ini adalah analisis variansi dua jalan sel tak sama yang sebelumnya dilakukan uji normalitas dan uji homogenitas dengan α = 5%. Dari hasil penelitian, diperoleh: (1) ada perbedaan efek strategi pembelajaran terhadap prestasi belajar matematika, dengan Fa = 4,624, (2) tidak ada perbedaan efek kemampuan awal siswa terhadap prestasi belajar matematika, dengan Fb = 0,541, (3) tidak ada interaksi antara penggunaan strategi pembelajaran dan kemampuan awal siswa terhadap prestasi belajar matematika, dengan Fab = 1,347

Influence Accompany Disease of Pregnancy and Multiple Pregnancy to Low Birth Weight in General Hospital Arifin Achmad Riau Province

Of data obtained from the Medical Records General Hospital Arifin Achmad Riau from 2011 to 2013 for that is LBW in 2011 registered 46 cases (1.62%) of 2833 deliveries, 179 cases registered in 2012 (5.44%) of the 3290 labor and in 2013 registered 130 cases (4.56%) of 2848 births and LBW are still included in 3 of the 15 diseases causing neonatal mortality. Purpose of research is known factors related to LBW in General Hospital Arifin Achmad Riau Year 2011- 2013. Design of research is case-control study. The case is infat born to LBW in General Hospital Arifin Achmad Riau in 2011-2013 equal 355 respondent and control is infants born to normal birth weight in General Hospital Arifin Achmad Riau in 2011-2013 equal 355 respondent. The results of research maternal to Accompanying Disease Pregnancy is more risk of giving birth to LBW 10 times (95% CI 6.2 -16.6) and maternal to more risk of having a multiple pregnancy to LBW 15 times (95% CI 4,8- 45.1). Conclusion that is the independent variables have causal relations with incidence of LBW is Age, Accompanying Disease Pregnancy, Preeclampsia/eclampsia, Multiple pregnancy, PROM, Hydramnion, Plasenta Previa. Advice is intended for health professionals that is active in counseling, the General Hospital Arifin Achmad Riau need liveliness LBW preventio

Pengetahuan Dengan Keterampilan Praktek Asuhan Kebidanan Antenatal Care Pada Mahasiswa Semester IV (Empat) DIII Kebidanan Fakultas Ilmu Kesehatan Universitas Respati Indonesia.

Midwifery students are candidates or embryo midwife who has the knowledge and professional skills and the quality of education obtained through a midwife for 3 years at the college level. Of the data value of midwifery care I (in pregnant women) and the value of student clinical practice DIII Midwifery Faculty of Health Sciences University of Indonesia Respati there is a gap between the knowledge with their skills because of the number of students is about 54 people to value their practice skills got a C and D as 39 people. The purpose of this study was to determine the relationship of knowledge to the practice of midwifery care skills antenatal care in the fourth semester students Midwifery Diploma Respati Faculty of Health Sciences University of Indonesia in 2009, includes anamnesis, clinical examination, laboratory examination and diagnosis. This is design research with cross sectional study and sampel equals 54 respondent. The analysis used is Chi Square test. Results of research have variabels a significant relationship with the practice of midwifery care skills antenatal care is the clinical examination (p = 0.007), laboratory tests (p = 0.009), diagnosis (p = 0.002)

Associated Hb and Parity with the Incidence of Intra Uterine Fetal Death (IUFD) General Hospital Arifin Achmad Pekanbaru

IntraUterineFetalDeath(IUFD) is adead fetusin the wombweighing ≥500 gramsordeath ofthe fetus in thewombat 20 weeksormore. Data obtainedfrom theMedical RecordsGeneral HospitalArifinAchmadPekanbarufrom 2009 to2011 toincreasethe incidence ofIUFD. In 2009the proportion ofthe incidence ofIUFD3.6%of2929deliveries.In 2010the proportion ofIUFDincidenceincreased 4.2% from 2989deliveries. In 2011the proportionincreased 4.4% from 2856deliveries. The purposeof researchisknownrisk factorin theincidence ofIUFDGeneral Hospital Arifin Achmad Pekanbaru2010-2011.The designstudy is acase-control study(casecontrol study). The case ofthedead fetusin the wombwere born tomothersin General Hospital Arifin Achmad Pekanbaruin 2010-2011periodJanuary 2010-December 2011 andthe controlinfants born tomotherslivingin General Hospital Arifin Achmad Pekanbaru2010-2011periodJanuary 2010-December 2011 .The resultsof women havingHb<11 g% higher risk of havingIUFD3 times(95% CI1.9 to 4.9) than those whohave theHb level≥11 g%, mothers withparity0 and> 4 moreriskybearwithIUFD1.5 times(95% CI1 to 2.1) compared towomen whohadparity1-4. The conclusionthatthe independentvariablesthat havea causal relationshipwith the incidence ofIUFDishemoglobinandparity. Adviceisintended forhealth professionalsactive inproviding information, forGeneral Hospital Arifin Achmad Pekanbaruneed tobe active inimplementingAMP, andfor pregnant womenand families that participate inprenatal careandfamily plannin

Faktor Determinan Toksoplasmosis pada Ibu Hamil

Toksoplasmosis merupakan penyakit yang disebabkan oleh Toxoplasma gondii yang merupakan golongan protozoa yang sifatnya parasite obligat intraseluler. Salah satu Provinsi terbesar di Indonesia yaitu Provinsi Riau terdapat kasus Toksoplasmosis yang menurut data dari rekam medis RSUD Arifin Achmad Provinsi Riau toksoplasmosis merupakan penyakit peringkat 9 tertinggi dari 15 penyakit terbesar dalam kehamilan. Tujuan penelitian ini untuk mengidentifikasi faktor determinan terjadinya toksoplasmosis pada ibu hamil di RSUD Arifin Achmad Provinsi Riau. Penelitian ini menggunakan jenis penelitian kuantitatif dengan desain penelitian case control. Populasi pada penelitian ini adalah seluruh ibu hamil yang tercatat di rekam medik RSUD Arifin Achmad pada tahun 2012 dengan jumlah sampel sebanyak 60 orang terbagi menjadi 30 orang sebagai kasus dan 30 orang sebagai kontrol (dengan teknik systematic random sampling). Pengumpulan data dilakukan dengan menggunakan kuesioner data analisis multivariat dengan uji multiple logistic regresion. Hasil penelitian menunjukkan adanya dua variabel yang berhubungan secara signifikan yaitu variabel pekerjaan dengan p value (0,008) OR: 7,97 ; CI 95% (1,70-37,34) dan status paritas dengan p value (0,029) OR: 5,33 ; CI 95% (1,18-24,18). Toxoplasmosis is a disease caused by Toxoplasma gondii is a protozoan group obligate intracellular parasite nature. Riau province there are cases of toxoplasmosis which according to data from medical records General Hospital of Arifin Achmad in Riau Province toxoplasmosis is a disease of the 15 highest ranked 9th largest disease in pregnancy. The purpose of this study to identify the determinants of the occurrence of toxoplasmosis in pregnant women at General Hospital of Arifin Achmad in Riau Province. This research uses quantitative research with case-control study design. The population were all pregnant women recorded in the medical record Arifin Achmad Hospital in 2012 with sample of 60 people divided 30 people as cases and 30 persons as control (with a systematic random sampling technique). Data collection was performed using multivariate analysis of data questionnaire with multiple logistic regresion test. The results presence of two variabels significantly associated job with p value (0.008) OR: 7.97; 95% CI (1.70 to 37.34) and parity status with p value (0.029) OR: 5.33; 95% CI (1.18 to 24.18). Results of the study are expected to health workers to inform about toxoplasmosis complete and CHL counseling and regular prenatal care in the prevention of toxoplasmosis