A CMOS spectrum analyzer frontend for cognitive radio achieving +25dBm IIP3 and −169 dBm/Hz DANL

A dual RF-receiver preceded by discrete-step attenuators is implemented in 65nm CMOS and operates from 0.3– 1.0 GHz. The noise of the receivers is reduced by cross-correlating the two receiver outputs in the digital baseband, allowing attenuation of the RF input signal to increase linearity. With this technique a displayed average noise level below -169 dBm/Hz is obtained with +25 dBm IIP3, giving a spurious-free dynamic range of 89 dB in 1 MHz resolution bandwidth

Rural primary care workforce views on trauma‐informed care for parents experiencing complex trauma: A descriptive study

Background An important service system for rural parents experiencing complex trauma is primary health care. Aim To investigate workforce knowledge, attitudes and practices, and barriers and enablers to trauma-informed care in rural primary health care. Material & Methods This study used a descriptive, cross-sectional design. It involved an on-line survey conducted in 2021 in rural Victoria, Australia. Participants were the primary health care workforce. The main outcome measures were study-developed and included, a 21-item Knowledge, Attitudes and Practices tool, a 16-item Barriers and Enablers to Trauma-Informed Care Implementation tool, and three open-ended questions. Results The 63 respondents were from community health (n = 40, 63%) and child and family services (n = 23, 37%). Many (n = 43, 78%) reported undertaking trauma-informed care training at some point in their career; with 32% (n = 20) during higher education. Respondents self-rated their knowledge, attitudes and practices positively. Perceived enablers were mainly positioned within the service (e.g. workforce motivation and organisational supports) and perceived barriers were largely external structural factors (e.g. availability of universal referral pathways, therapeutic-specific services). Open-ended comments were grouped into four themes: (1) Recognition and understanding; (2) Access factors; (3) Multidisciplinary and collaborative approaches; and (4) Strengths-based and outcome-focused approaches. Discussion & Conclusion Primary health care is an important driver of population health and well-being and critical in rural contexts. Our findings suggest this sector needs a rural trauma-informed care implementation strategy to address structural barriers. This also requires policy and system development. Long-term investment in the rural workforce and primary care service settings is essential to integrate trauma-informed care

Gravitational Waves in a Spatially Closed deSitter Spacetime

Perturbation of gravitational fields may be decomposed into scalar,vector and tensor components.In this paper we concern with the evolution of tensor mode perturbations in a spatially closed deSitter background of RW form. It may be thought as gravitional waves in a classical description. The chosen background has the advantage of to be maximally extended and symmetric. The spatially flat models commonly emerge from inflationary scenarios are not completely extended.We first derive the general weak field equations.Then the form of the field equations in two special cases, planar and spherical waves are obtained and their solutions are presented. We conclued with discussing the significance of the results and their implications.Comment: 16 pages,no figure

On Isolated Conformal Fixed Points and Noncritical String Theory

We search for the gravity description of unidentified field theories at their conformal fixed points by studying the low energy effective action of six dimensional noncritical string theory. We find constant dilaton solutions by solving both the equations of motion and BPS equations. Our solutions include a free parameter provided by a stack of uncharged space filling branes. We find several AdS_p\times S^q solutions with constant radii for AdS_p and S^q. The curvature of the solutions are of the order of the string scale.Comment: 17 pages, Latex fil

Correlations and the Cross Section of Exclusive (e,e′pe,e'p) Reactions for 16^{16}O

The reduced cross section for exclusive ($e,e'p$) reactions has been studied in DWIA for the example of the nucleus $^{16}$O using a spectral function containing effects of correlations. The spectral function is evaluated directly for the finite nucleus starting from a realistic nucleon-nucleon interaction within the framework of the Green's function approach. The emphasis is focused on the correlations induced by excitation modes at low energies described within a model-space of shell-model configurations including states up to the $sdg$ shell. Cross sections for the $p$-wave quasi-hole transitions at low missing energies are presented and compared with the most recent experimental data. In the case of the so-called perpendicular kinematics the reduced cross section derived in DWIA shows an enhancement at high missing momenta as compared to the PWIA result. Furthermore the cross sections for the $s$- and $d$-wave quasi-hole transitions are presented and compared to available data at low missing momenta. Also in these cases, which cannot be described in a model without correlations, a good agreement with the experiment is obtained.Comment: 12 pages, LaTeX, 4 figures include

Meson exchange currents in electromagnetic one-nucleon emission

The role of meson exchange currents (MEC) in electron- and photon-induced one-nucleon emission processes is studied in a nonrelativistic model including correlations and final state interactions. The nuclear current is the sum of a one-body and of a two-body part. The two-body current includes pion seagull, pion-in-flight and the isobar current contributions. Numerical results are presented for the exclusive 16O(e,e'p)15N and 16O(\gamma,p)15N reactions. MEC effects are in general rather small in (e,e'p), while in (\gamma,p) they are always large and important to obtain a consistent description of (e,e'p) and (\gamma,p) data, with the same spectroscopic factors. The calculated (\gamma,p) cross sections are sensitive to short-range correlations at high values of the recoil momentum, where MEC effects are larger and overwhelm the contribution of correlations.Comment: 9 pages, 6 figure

Pengangkatan Pegawai Pemerintah dengan Perjanjian Kerja dan Implikasinya di Jawa Timur

PPPK merupakan jawaban atas kebutuhan Sumber Daya Manusia yang profesional yang selama ini belum diperoleh dari PNS. PPPK yang pengaturannya diatur dalam PP No. 49 Tahun 2018 tentang Manajemen PPPK mensyaratkan adanya jumlah kebutuhan PPPK, jenis jabatan PPPK, serta analisis kebutuhan jabatan, beban kerja untuk 5 tahun yang hams dirinci setiap tahun. Pasal 134 UU No. 5 Tahun 2014 mengamanatkan paling lama 2 tahun setelah Undang-Undang tersebut berlaku semua Peraturan Pemerintah yang diam.anatkan dalam Pasall07 UU No. 5 Tahun 2014 hams sudah terbentuk, yakni sejumlah 13 Rancangan Peraturan Pemerintah (RPP) . Pada kenyataannya sampai saat ini bam terbentuk 4 RPP saja, yakni tentang gaji dan tunjangan, penilaian kinerja dan disiplin PNS, korps pegawai ASN, dan manajemen PPPK. Tujuan penelitian adalah memberikan masukan kepada Pem.kot Surabaya, Gersik dan Sidoarjo tentang manajemen pengaturan PPPK sesudah berlakunya PP No. 49 Tahun 2018. Urgensi penelitian ini adalah menciptakan sistem pemerintahan yang demokratis, bersih dan berwibawa menciptakan PPPK yang professional, memberikan perlindungan hukum dan kepastian hukum bagi PPPK. Target penelitian ini adalah agar basil analisisnya dapat dipergunakan baik oleh Pem.kot Surabaya, Gersik, Sidoarjo maupun Pemkot!Pemkab lain dalam merancang manajemen pengaturan PPPK yang memberikan kepastian hukum dan keadilan. Luaran Penelitian adalah dapat ditulis dalam jurnal ilmiah, dengan Metode Penelitian Yuridis Normatif, diikuti dengan Yuridis empiris dengan Statue Approach, Conceptual Approach dan Case Approach Dari penelitian ini diketahui bahwa para responden yang merupakan pegawai ASN tidak mengetahui adanya ketentuan mengenai alur pengangkatan Pegawai Pemerintah dengan Perjanjian Kerja. Sedangkan Pejabat Pembina Kepegawaian masih belurn sepenuhnya menerapkan ketentuan yang berkaitan dengan PPPK. Hal ini, berimplikasi terhadap para PNS maupun PPPK adalah tidak adanya perlindungan hukum bagi hak-hak yang seharusnya mereka dapatkan. Oleh karena itu disarankan agar Ketentuan tentang manajemen PNS maupun PPPK hams dilaksanakan secara menyeluruh serta Fokus kebijakan pada bidang kepegawaian seharusnya bergeser dari efisiensi ekonomi menjadi pemberdayaan sumber daya manusia dalam birokrasi

Circular Semiclassical String solutions on Confining AdS/CFT Backgrounds

We study multiwrapped circular string pulsating in the radial direction of AdS black hole. We compute the energy of this string as a function of a large quantum number n. One then could associate it with energy and a quantum number of states in the dual finite temperature {\cal N}=4 SYM theory as well as three dimensional pure gauge theory. We observe that the n dependence of the energy has a universal form. We have also considered pulsating string in the background of the near-extremal D4-brane solution. Circular pulsating membrane in M-theory on AdS_7\times S^4 has also been studied.Comment: 14 pages, latex, v2: typos corrected, refs. adde

2D Gravity on AdS2AdS_2 with Chern-Simons Corrections

We study 2D Maxwell-dilaton gravity with higher order corrections given by the Chern-Simons term. The model admits three distinctive $AdS_2$ vacuum solutions. By making use of the entropy function formalism we find the entropy of the solutions which is corrected due to the presence of the Chern-Simons term. We observe that the form of the correction depends not only on the coefficient of the Chern-Simons term, but also on the sign of the electric charge; pointing toward the chiral nature of the dual CFT. Using the asymptotic symmetry of the theory as well as requiring a consistent picture we can find the central charge and the level of U(1) current. Upon uplifting the solutions to three dimensions we get purely geometric solutions which will be either $AdS_3$ or warped $AdS_3$ with an identification.Comment: 15 pages; V2: refs adde

Dual Spikes; New Spiky String Solutions

We find a new class of spiky solutions for closed strings in flat, $AdS_3\subset AdS_5$ and $R\times S^2(\subset S^5)$ backgrounds. In the flat case the new solutions turn out to be T-dual configurations of spiky strings found by Kruczenski hep-th/0410226. In the case of solutions living in $AdS$, we make a semi classical analysis by taking the large angular momentum limit. The anomalous dimension for these dual spikes is similar to that for rotating and pulsating circular strings in AdS with angular momentum playing the role of the level number. This replaces the well known logarithmic dependence for spinning strings. For the dual spikes living on sphere we find that no large angular momentum limit exists.Comment: Added reference