Analisis Kerentanan Pantai Berdasarkan Coastal Vulnerability Index (Cvi) di Pantai Kota Makassar

The vulnerability of Makassar coast was measured using parameters of Coastal Vulnerability Index (CVI). CVIvalue was determined using geomorphology, shoreline change, coastal slope, mean wave height, mean tidalrange, and relative sea level change parameters. The Makassar coast was divided into a numbers of cells, eachwith the length of 1 km and width of 0.5 kminto the sea. CVI values werecalculated for each cell and the coastalvulnerability wereclassifiedinto five categories: very low - low - medium - high - very high. The results show thatthe coastline with high to very high vulnerability index are located at the southern part of Makassar, while thenorthern coastline generally have low to moderate vulnerability. The CVI parameters which contributed to highsusceptibilitywere the coastal slope and the shoreline change parameters

Pertumbuhan Eksplan Buah Naga (Hylocereus Undatus) Pada Posisi Tanam Dan Komposisi Media Berbeda Secara in Vitro

The aims of this experiment were to obtain the most suitable explant planting position and medium composition for the growth of dragon fruit via in vitro culture. This experiment used Split Plot Design with the main plot was explant planting position, namely vertical and horizontal positions. The sub plot was media composition, namely 2 ppm BAP + 0.40 ppm NAA; 3 ppm BAP + 0.20 ppm NAA; 2 ppm BAP + 0.40 ppm NAA + 0.88 ppm vitamin C; and 3 ppm BAP + 0.20 ppm NAA + 0.88 ppm vitamin C. Data were analysed by using Analysis of Variance and differences between treatmens were determined by Honestly Significant Difference. Results of this experiment indicated that media composition had a highly significant difference on the growth of dragon fruit explants on each planting position tested. Medium composition supplemented with 3 ppm BAP + 0.20 ppm NAA planted horizontally showed a good growth with average shoot formation 8.67 shoots and shoot length 1.76 cm per explant. Intensive root formation was observed at vertical planting position with average 7.50 roots per explant

Efektivitas Metode Konseling terhadap Perilaku Merokok pada Siswa SMA di Kecamatan Laeya Tahun 2015

Merokok merupakan suatu masalah di dalam masyarakat yang dapat menimbulkan banyak kerugian baikdari segi sosial ekonomi maupun kesehatan bahkan kematian. Untuk mengatasi masalah tersebut, diperlukanstrategi pendidikan kesehatan yang tepat, salah satunya dengan pendidikan kesehatan melalui metodekonseling. Tujuan dari penelitian ini adalah untuk melihat efektivitas metode konseling terhadap perilakumerokok siswa SMA di Kecamatan Laeya Tahun 2015. Metode yang di gunakan yaitu Pra-Eksperimen denganmenggunakan rancangan one group pre test and post test design. Sampel penelitian sebanyak 15 orang siswayang memiliki kebiasaan merokok. Sampel ditentukan dengan teknik purposive sampling. Denganmenggunakan uji statistik Mc.Nemar diperoleh hasil bahwa metode konseling efektif untuk meningkatkanpengetahun (ρ value 0,001), sikap (ρ value 0,002) dan Tindakan (ρ value 0,001) responden tentang bahaya rokok,namun tidak efektif untuk meningkatkan motivasi (ρ value 1,000) berhenti merokok responden dikarenakanmotivasi semua responden untuk berhenti merokok sudah dalam kategori baik sebelum dilakukan intervensikonseling bahaya rokok. Adapun rekomendasi dalam penelitian ini adalah sebaiknya SMA Negeri 17 KonaweSelatan memiliki guru konseling agar kegiatan konseling dapat rutin dilakukan untuk membantu mengatasiberbagai masalah yang dihadapi siswa baik dalam hal kebiasaan merokok siswa maupun masalah-masalah lainyang mungkin dihadapi oleh para sisw

Faktor yang Berhubungan dengan Perilaku Lansia dalam Memanfaatkan Posyandu Lansia di Wilayah Kerja Puskesmas Landono Kabupaten Konawe Selatan Tahun 2015

Posyandu lansia merupakan salah satu jenis pelayanan kesehatan yang dikhusukan untuk lansia,pemanfaatan pelayanan posyandu lansia di wiliyah kerja puskesmas landono masih tergolong kurang.Tujuan penelitian ini adalah untuk mengetahui faktor yang berhubungan dengan perilaku lansia dalammemanfaatkan Posyandu Lansia di Wilayah Kerja Puskesmas Landono Kabupaten Konawe Selatan Tahun2015. Metode penelitian yang digunakan adalah survey analitik dengan rancangan Cross sectional study.Populasi pada penelitian ini sebanyak 122 lansia, Sampel pada penelitian ini yang terdaftar di bukuregister dan berkunjung di posyandu lansia di wilayah kerja puskesmas landono sebanyak 55 responden.Teknik pengambilan sampel menggunakan stratified random sampling. Analisis statistik menggunakanuji Chi Square. Hasil penelitian menunjukkan tidak ada hubungan yang signifikan antara pendidikan(p=1.000), nilai tradisi (p=0,059), fasilitas kesehatan (p=0,072) dengan pemanfaatan posyandu lansia.Serta ada hubungan yang signifikan antara petugas kesehatan (p=0,045) dan dukungan tokohmasyarakat (p=0,018) dengan pemanfaatan posyandu lansia. Disarankan kepada petugas kesehatanatau puskesmas untuk terus meningkatkan sosialisasi dan motivasi untuk para lansia agar lebih aktifberkunjung ke posyandu lansia untuk meningkatkan derajat kesehatannya

Adoption of social media marketing for sustainable business growth of SMEs in emerging economies: The moderating role of leadership support

Social media marketing (SMM) plays an important role in business communication, mar-keting, operations, and other activities. There is a growing interest among researchers, academicians, and practitioners to understand the role of SMM in business sustainability in small and medium enterprises (SMEs) in an emerging economy, like India. Few studies have attempted to understand this role. Thus, the aim of this study is to examine the impact of adopting social media marketing for sustainable business growth of SMEs in an emerging economy. The study also investigates the moderating role of SME leadership support on the relationship between SMM usage and sustainable business growth of SMEs. After reviewing the existing literature and technology adoption model, a theoretical model is developed, which is then validated using a structural equation modeling tech-nique to analyze 304 samples of Indian SMEs that use different social media marketing applications in their enterprises. This study confirmed that SMM tools significantly and positively improve the sustainable growth of SMEs in an emerging economy. Additionally, the study also found that SME leadership team plays a vital role in supporting actual usage of SMM tools that accelerate sustainable business growth of SMEs

Tracer kinetic modelling for DCE-MRI quantification of subtle blood–brain barrier permeability

There is evidence that subtle breakdown of the blood–brain barrier (BBB) is a pathophysiological component of several diseases, including cerebral small vessel disease and some dementias. Dynamic contrast-enhanced MRI (DCE-MRI) combined with tracer kinetic modelling is widely used for assessing permeability and perfusion in brain tumours and body tissues where contrast agents readily accumulate in the extracellular space. However, in diseases where leakage is subtle, the optimal approach for measuring BBB integrity is likely to differ since the magnitude and rate of enhancement caused by leakage are extremely low; several methods have been reported in the literature, yielding a wide range of parameters even in healthy subjects. We hypothesised that the Patlak model is a suitable approach for measuring low-level BBB permeability with low temporal resolution and high spatial resolution and brain coverage, and that normal levels of scanner instability would influence permeability measurements. DCE-MRI was performed in a cohort of mild stroke patients (n = 201) with a range of cerebral small vessel disease severity. We fitted these data to a set of nested tracer kinetic models, ranking their performance according to the Akaike information criterion. To assess the influence of scanner drift, we scanned 15 healthy volunteers that underwent a “sham” DCE-MRI procedure without administration of contrast agent. Numerical simulations were performed to investigate model validity and the effect of scanner drift. The Patlak model was found to be most appropriate for fitting low-permeability data, and the simulations showed vp and KTrans estimates to be reasonably robust to the model assumptions. However, signal drift (measured at approximately 0.1% per minute and comparable to literature reports in other settings) led to systematic errors in calculated tracer kinetic parameters, particularly at low permeabilities. Our findings justify the growing use of the Patlak model in low-permeability states, which has the potential to provide valuable information regarding BBB integrity in a range of diseases. However, absolute values of the resulting tracer kinetic parameters should be interpreted with extreme caution, and the size and influence of signal drift should be measured where possible

Examining the relationship between semiquantitative methods analysing concentration-time and enhancement-time curves from dynamic-contrast enhanced magnetic resonance imaging and cerebrovascular dysfunction in small vessel disease

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) can be used to examine the distribution of an intravenous contrast agent within the brain. Computational methods have been devised to analyse the contrast uptake/washout over time as reflections of cerebrovascular dysfunction. However, there have been few direct comparisons of their relative strengths and weaknesses. In this paper, we compare five semiquantitative methods comprising the slope and area under the enhancement-time curve, the slope and area under the concentration-time curve ( SlopeCon and AUCCon ), and changes in the power spectrum over time. We studied them in cerebrospinal fluid, normal tissues, stroke lesions, and white matter hyperintensities (WMH) using DCE-MRI scans from a cohort of patients with small vessel disease (SVD) who presented mild stroke. The total SVD score was associated with AUCCon in WMH ( p0.05 ) and WMH burden ( p>0.05 ). Our results show the potential of different measures extracted from concentration-time curves extracted from the same DCE examination to demonstrate cerebrovascular dysfunction better than those extracted from enhancement-time curves

A gas-rich nuclear bar fuelling a powerful central starburst in NGC 2782

We present evidence that the peculiar interacting starburst galaxy NGC 2782 (Arp 215) harbors a gas-rich nuclear stellar bar feeding an M82-class powerful central starburst, from a study based on OVRO CO (J=1->0) data, WIYN BVR & Halpha observations, along with available NIR images, a 5 GHz RC map and HST images. NGC 2782 harbors a clumpy, bar-like CO feature of radius ~ 7.5'' (1.3 kpc) which leads a nuclear stellar bar of similar size. The nuclear CO bar is massive: it contains ~2.5x10**9 M_sun of molecular gas, which makes up ~ 8 % of the dynamical'mass present within a 1.3 kpc radius. Within the CO bar, emission peaks in two extended clumpy lobes which lie on opposite sides of the nucleus, separated by ~ 6'' (1 kpc). Between the CO lobes, in the inner 200 pc radius, resides a powerful central starburst which is forming stars at a rate of 3 to 6 M_sun yr-1. While circular motions dominate the CO velocity field, the CO lobes show weak bar-like streaming motions on the leading side of the nuclear stellar bar, suggestive of gas inflow. We estimate semi-analytically the gravitational torque from the nuclear stellar bar on the gas, and suggest large gas inflow rates from the CO lobes into the central starburst. These observations, which are amongst the first ones showing a nuclear stellar bar fuelling molecular gas into an intense central starburst, are consistent with simulations and theory which suggest that nuclear bars provide an efficient way of transporting gas closer to the galactic center to fuel central activity. Furthermore, several massive clumps are present at low radii, and dynamical friction might produce further gas inflow. We suggest that the nuclear molecular gas bas and central activity will be very short-lived, likely disappearing within 5x10**8 years.Comment: Accepted by the Astrophysical Journal, 10 pages, Latex with emulateapj.sty, apjfonts.sty, 10 postscript & 2 gif figure

Metric to quantify white matter damage on brain magnetic resonance images

PURPOSE: Quantitative assessment of white matter hyperintensities (WMH) on structural Magnetic Resonance Imaging (MRI) is challenging. It is important to harmonise results from different software tools considering not only the volume but also the signal intensity. Here we propose and evaluate a metric of white matter (WM) damage that addresses this need. METHODS: We obtained WMH and normal-appearing white matter (NAWM) volumes from brain structural MRI from community dwelling older individuals and stroke patients enrolled in three different studies, using two automatic methods followed by manual editing by two to four observers blind to each other. We calculated the average intensity values on brain structural fluid-attenuation inversion recovery (FLAIR) MRI for the NAWM and WMH. The white matter damage metric is calculated as the proportion of WMH in brain tissue weighted by the relative image contrast of the WMH-to-NAWM. The new metric was evaluated using tissue microstructure parameters and visual ratings of small vessel disease burden and WMH: Fazekas score for WMH burden and Prins scale for WMH change. RESULTS: The correlation between the WM damage metric and the visual rating scores (Spearman ρ > =0.74, p  =0.72, p < 0.0001). The repeatability of the WM damage metric was better than WM volume (average median difference between measurements 3.26% (IQR 2.76%) and 5.88% (IQR 5.32%) respectively). The follow-up WM damage was highly related to total Prins score even when adjusted for baseline WM damage (ANCOVA, p < 0.0001), which was not always the case for WMH volume, as total Prins was highly associated with the change in the intense WMH volume (p = 0.0079, increase of 4.42 ml per unit change in total Prins, 95%CI [1.17 7.67]), but not with the change in less-intense, subtle WMH, which determined the volumetric change. CONCLUSION: The new metric is practical and simple to calculate. It is robust to variations in image processing methods and scanning protocols, and sensitive to subtle and severe white matter damage