105 research outputs found

    Construction of a Tumor-Targeting Nanobubble with Multiple Scattering Interfaces and Its Enhancement of Ultrasound Imaging [Letter]

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    Agus Widodo, M Syauqi Haris, Anis Ansyori Medical Record and Health Information Department, ITSK RS DR Soepraoen Malang, Kota Malang, Jawa Timur, IndonesiaCorrespondence: Agus Widodo, ITSK RS DR Soepraoen Malang, Kota Malang, Jawa Timur, Indonesia, Email [email protected]

    An Android Application for Blind: Third Eye

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    With advances in new technologies, mobile devices have grown in popularity to become one of the most common consumer devices. Many of us can make a call or send a message at anytime from anywhere. As our society farther expands, there have been many supports for second-class citizens, disabled. There are a lot of visually impaired persons in and round the world. Physical disability of blind people makes their life difficult. They find themselveschallenging to meet daily challenges independently. One amongst several supports that are urgent is that the guarantee of quality for blind individuals.Several auxiliary tools are available to help blind people.But these could not able to help the user with basic mobile phone features. The main aim of this paper is to help the blind person to use basic features of smart phones by audible feedback and a single shake on this application identifies the location of place through GPS and sends a message comprising this location URL to the registered contacts and also make a call on the first registered contact to help the one in dangerous situations. Continuous location trailing info via SMS helps to seek out the situation of the victim quickly and might be saved safely

    Pengembangan Kompetensi Dan Kapasitas Tenaga Kependidikan di Universitas Lambung Mangkurat

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    Penelitian ini dilatarbelakangi oleh pengembangan Sumber Daya Manusia (SDM) yang menjadi prioritas pemerintah seperti yang tertuang dalam Rencana Pembangunan Jangka Menengah Nasional (RPJMN) 2020-2024. Selaku bagian dari aparatur negara yang bekerja pada instansi pendidikan, tenaga kependidikan Universitas Lambung Mangkurat mempunyai hak yang sama dalam pengembangan kompetensi dan kapasitas. Kompetensi dan kapasitas ialah dua konsep yang berbeda tetapi saling mempengaruhi dan yang satu tidak akan ada tanpa yang lain. Kompetensi dapat dilihat dari komponen yang membentuknya yaitu pengetahuan, keterampilan dan sikap. Dan komponen pengembangan kapasitas terdiri dari kapasitas kinerja, kapasitas pribadi, kapasitas beban kerja, kapasitas pengawas, kapasitas fasilitas, kapasitas layanan pendukung, kapasitas sistem, kapasitas struktural serta kapasitas peran. Jumlah tenaga kependidikan ULM yang belum berpendidikan Sarjana sebesar 48% dari jumlah keseluruhan tenaga kependidikan yang berstatus PNS serta jumlah tenaga kependidikan yang mengikuti diklat teknis yang semakin menurun dari tahun ke tahun membuat penulis tertarik guna melaksanakan penelitian yang berjudul “Pengembangan Kompetensi Dan Kapasitas Tenaga Kependidikan di Universitas Lambung Mangkurat”. Rumusan masalah di penelitian ini: Bagaimanakah pengembangan kompetensi dan kapasitas tenaga kependidikan di Universitas Lambung Mangkurat?; Apa saja faktor-faktor pendukung dan penghambat pengembangan kompetensi dan kapasitas tenaga kependidikan di Universitas Lambung Mangkurat?. Tujuan penelitian ini: Untuk mendeskripsikan serta menganalisis pengembangan kompetensi dan kapasitas tenaga kependidikan di Universitas Lambung Mangkurat; Untuk mengidentifikasi faktor-faktor pendukung dan penghambat pengembangan kompetensi dan kapasitas tenaga kependidikan di Universitas Lambung Mangkurat. Jenis penelitian ini ialah penelitian deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data dari wawancara, observasi, serta dokumentasi. Analisis data dilakukan melalui pengolahan data, membaca data, koding data, memilah data berdasarkan tema, dan memaknai data. Hasil temuan di lapangan menunjukkan bahwa pengembangan pengetahuan dilakukan melalui studi lanjut yaitu ijin belajar serta tugas belajar dengan jenjang pendidikan S1 sampai dengan S3, namun belum ada keseragaman dalam bantuan biaya. Kegiatan pengembangan keterampilan masih belum banyak dilakukan oleh pihak universitas. Pengembangan sikap tenaga kependidikan melalui penilaian perilaku dan penerapan zona integritas. Penguasaan peralatan kerja dan pemanfaatan anggaran, serta hasil penilaian kinerja sudah cukup baik. Pengembangan kapasitas pribadi dimulai dari proses rekrutmen serta studi lanjut, keikutsertaan diklat, seminar, dan bimbingan teknis.Pada komponen kapasitas beban kerja didapati bahwa beban kerja tenaga kependidikan belum merata. Pengawasan terhadap tenaga kependidikan melalui penilaian prestasi kerja yang berakibat pada pemberian reward and punishment, dan dibentuknya Satuan Pengawas Internal (SPI). Fasilitas yang dimiliki Universitas Lambung Mangkurat sudah cukup lengkap ditambah dengan pembangunan gedung hasil hibah dari Islamic Development Bank (IsDB). Layanan pendukung berupa kerjasama yang dilakukan baik antar fakultas, maupun dengan pihak luar dalam kegiatan pengembangan tenaga kependidikan. Pengembangan kapasitas sistem berupa sistem informasi, manajemen dan keuangan sudah mulai beralih dari manual ke digital melalui penggunaan aplikasi. Forum diskusi terjadi antar atasan dengan bawahan, pihak ULM dengan pihak penyelenggara diklat, dan juga antar tenaga kependidikan fungsional dengan forum perkumpulan profesi. Kapasitas peran dalam pengembangan kapasitas tenaga kependidikan ULM dilihat dari peran sebagai individu/ASN yang mengembangkan kemampuan dirinya dan juga sebagai tim dalam bekerjasama demi mencapai tujuan organisasi. Faktor pendukung yaitu adanya kepemimpinan yang kondusif dan tingginya minat tenaga kependidikan untuk mengembangkan diri. Faktor penghambat yaitu belum teridentifikasinya kebutuhan pelatihan untuk tenaga kependidikan sehingga pengembangan keterampilan di Universitas Lambung Mangkurat belum terarah, dan belum dilaksanakannya analisis beban kerja

    The geoaccumulation index and enrichment factor of mercury in mangrove sediment of Port Klang, Selangor, Malaysia.

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    Mangrove areas are important to the ecosystem. One of its crucial functions is as a sink of pollutants, especially metal ions. However, the accumulation of metals in mangrove sediment can generate negative impacts on plant growth, microbial activity, and soil fertility. Apart from that, the severity of the impact is highly influenced by the type of metal found in the sediment and the quality of sediment itself. One of the metals that have adverse effects on the environment is mercury. The objectives of this study are to determine the concentration and distribution of mercury and to assess the enrichment of mercury in Port Klang mangrove sediment by using geoaccumulation index and enrichment factor. Sediment samples were collected from 30 sampling points that cover Langat River and Klang River estuaries, Lumut Straits, Pulau Klang, and Pulau Indah. During sampling, water parameters such as pH, salinity, electrical conductivity, and total dissolved solids were measured in situ, whereas the total mercury in sediment samples was determined at the laboratory using inductively coupled plasma mass spectrometry. In this study, mercury was found to be concentrated along Lumut Strait especially in the mixing zone near the confluence of Langat River and at the jetty to Pulau Ketam. The geoaccumulation index and enrichment factor (calculated using logarithmized data of the reference element) found that three stations were enriched with mercury. In addition, geoaccumulation index was also observed to be more objective compared to enrichment factor whose results were influenced by the concentration of reference element used

    Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

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    We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

    Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

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    We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO’s second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h95%0=3.47×10−25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering

    GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

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    The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15 ∶ 00 UTC and 1 October 2019 15 ∶ 00 UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a probability of astrophysical origin greater than 0.5. Of these candidates, 36 have been reported in GWTC-2. We also calculate updated source properties for all binary black hole events previously reported in GWTC-1. If the eight additional high-significance candidates presented here are astrophysical, the mass range of events that are unambiguously identified as binary black holes (both objects ≄ 3 M⊙ ) is increased compared to GWTC-2, with total masses from ∌ 14 M ⊙ for GW190924_021846 to ∌ 182 M⊙ for GW190426_190642. Source properties calculated using our default prior suggest that the primary components of two new candidate events (GW190403_051519 and GW190426_190642) fall in the mass gap predicted by pair-instability supernova theory. We also expand the population of binaries with significantly asymmetric mass ratios reported in GWTC-2 by an additional two events (the mass ratio is less than 0.65 and 0.44 at 90% probability for GW190403_051519 and GW190917_114630 respectively), and find that two of the eight new events have effective inspiral spins χeff > 0 (at 90% credibility), while no binary is consistent with χeff < 0 at the same significance. We provide updated estimates for rates of binary black hole and binary neutron star coalescence in the local Universe
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