An estimate for the thermal photon rate from lattice QCD

We estimate the production rate of photons by the quark-gluon plasma in lattice QCD. We propose a new correlation function which provides better control over the systematic uncertainty in estimating the photon production rate at photon momenta in the range {\pi}T/2 to 2{\pi}T. The relevant Euclidean vector current correlation functions are computed with $N_{\mathrm f}$ = 2 Wilson clover fermions in the chirally-symmetric phase. In order to estimate the photon rate, an ill-posed problem for the vector-channel spectral function must be regularized. We use both a direct model for the spectral function and a model-independent estimate from the Backus-Gilbert method to give an estimate for the photon rate.Comment: 15 pages, 11 figures, talk presented at 35th annual International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spai

Ultralong-Range Rydberg Molecules in a Divalent-Atomic System

We report the creation of ultralong-range Sr$_2$ molecules comprising one ground-state $5s^2$ $^1S_0$ atom and one atom in a $5sns$ $^3S_1$ Rydberg state for $n$ ranging from 29 to 36. Molecules are created in a trapped ultracold atomic gas using two-photon excitation near resonant with the $5s5p$ $^3P_1$ intermediate state, and their formation is detected through ground-state atom loss from the trap. The observed molecular binding energies are fit with the aid of first-order perturbation theory that utilizes a Fermi pseudopotential with effective $s$-wave and $p$-wave scattering lengths to describe the interaction between an excited Rydberg electron and a ground-state Sr atom.Comment: 5 pages, 2 figure

Risiko Sebagai Determinan Produksi Usaha Tani Padi: Suatu Penemuan Di Tiga Wilayah Agroekosistem Sumatera Selatan, Jambi Dan Bengkulu

EnglishProduction risk is always found in every agricultural production process. Risk which is defined as probability of economic lost for a production decision maker to use a certain strategy of production process will always be one of the factors to be considered. A risk measurement study of rice farming in three ecosystems in Jambi, South Sumatera and Bengkulu was conducted in financial year of 1996/1997, to support the food crop production out of Java program. A simple model that can use a normal tested distribution of crop cut yield of rice was used. Results show that in tidal swamp ecosystem the probability of lost was very small (<1 ,5%) in irrigation was larger (<3,5%), while in upland situation was largest (20%). The potential lost depends upon the probability if production falls below the break even yield and cash expenditure. In current state of art, the tidal swamp ecosystem shows the production risk amount about Rp 73,000 each hectare, in irrigation ecosystem Rp 294,000 each hectare and upland ecosystem Rp 268,000 each hectare. Analysis of each technology separately was suggested. High risk in upland ecosystem makes the rice farming not so dependable, many farmers supplement it with other non farm job and substituted with other more profitable crops. It is suggested that in irrigation scheme a more timely water management and adoption of more early maturing high yielding varieties in the down stream.IndonesianRisiko produksi selalu ada pada setiap USAha tani pertanian. Risiko yang diterjemahkan dengan peluang merugi bagi pengambil keputusan untuk mengadopsi suatu strategi proses produksi akan selalu menjadi salah satu faktor yang dipertimbangkan. Suatu studi pengukuran risiko pada USAha tani padi di tiga ekosistem di Sumatera Selatan, Jambi dan Bengkulu telah diadakan pada tahun 1996/1997 untuk mendukung program perluasan produksi tanaman pangan ke luar Jawa. Suatu model yang mudah memanfaatkan sebaran normal dari hasil ubinan digunakan dalam pengukuran risiko pada USAha tani. Pada ekosistem pasang surut menunjukkan peluang yang kecil (1,5%) pada ekosistem irigasi peluang merugi lebih besar (< 4 %) dan pada ekosistem ladang peluang merugi terbesar (20%). Besarnya potensi merugi sangat tergantung kepada potensi produktivitas di bawah produksi impas dan besarnya biaya tunai. Pada situasi sekarang maka di ekosistem pasang surut dapat mencapai Rp.73.000 tiap hektar, di ekosistem sawah irigasi dapat mencapai antara Rp.294.000- Rp.562.000 tiap hektar dan di ekosistem ladang dapat mencapai Rp.268.000. Analisis menurut karakteristik teknologi masing-masing dianjurkan. Risiko yang tinggi pada ekosistem ladang menjadikan USAha tani padi bukan USAha tumpuan, disuplemen dengan USAha lain dan banyak petani mengganti dengan tanaman lain yang lebih menguntungkan. Implikasi kebijaksanaan pada daerah irigasi ialah pengaturan air yang lebih mantap dan adopsi jenis unggul yang lebih sesuai (genjah) terutama daerah pelayanan hilir

Rydberg-Blockade Effects in Autler-Townes Spectra of Ultracold Strontium

We present a combined experimental and theoretical study of the effects of Rydberg interactions on Autler-Townes spectra of ultracold gases of atomic strontium. Realizing two-photon Rydberg excitation via a long-lived triplet state allows us to probe the thus far unexplored regime where Rydberg state decay presents the dominant decoherence mechanism. The effects of Rydberg interactions are observed in shifts, asymmetries, and broadening of the measured atom-loss spectra. The experiment is analyzed within a one-body density matrix approach, accounting for interaction-induced level shifts and dephasing through nonlinear terms that approximately incorporate correlations due to the Rydberg blockade. This description yields good agreement with our experimental observations for short excitation times. For longer excitation times, the loss spectrum is altered qualitatively, suggesting additional dephasing mechanisms beyond the standard blockade mechanism based on pure van der Waals interactions

Fakultas Pertanian Universitas Muhammadiyah Purwokerto

This research aimed to see the first appearance progeni (local S1) Selfing cultivar maize of Srowot Banyumas. It was taken place in Environment of Agricultural Faculty, University of Muhammadiyah Purwokerto with height more or less 85 m dpl. This research was conducted less than 6 month by using Complete Random Device (RAL). Trial factor are Varietas ( V) and Pollination by itself/selfing (S). Varietas Factor consisted of by 1 type: V1 = local Varietas Maize of Srowot Banyumas with 9 Parental. Selfing Factor consisted of 2 factors: S0 = Is not conducted by selfing (pollination by itself), S1 = conducted by selfing (pollination by itself). These factors obtained by 18 combination, and each factor using 3 restating. The result showed that there is inbreeding depression to component vegetative growth crop, in the form of high degradation of crop equal to 63,19 cm (31,28 %), and degradation sum up the leaf 2,72 piece of (22,67 %) effect of treatment selfing. Inbreeing depression that occured to result component only seen at seed weight per cob that there is weight degradation about 14,47 g or 23,51 % effect of treatment selfing Key words: first progeni performance (S1), selfing, local cultivar maize of srowot Banyuma

Thyroid hormone regulates distinct paths to maturation in pigment cell lineages

Thyroid hormone (TH) regulates diverse developmental events and can drive disparate cellular outcomes. In zebrafish, TH has opposite effects on neural crest derived pigment cells of the adult stripe pattern, limiting melanophore population expansion, yet increasing yellow/orange xanthophore numbers. To learn how TH elicits seemingly opposite responses in cells having a common embryological origin, we analyzed individual transcriptomes from thousands of neural crest-derived cells, reconstructed developmental trajectories, identified pigment cell-lineage specific responses to TH, and assessed roles for TH receptors. We show that TH promotes maturation of both cell types but in distinct ways. In melanophores, TH drives terminal differentiation, limiting final cell numbers. In xanthophores, TH promotes accumulation of orange carotenoids, making the cells visible. TH receptors act primarily to repress these programs when TH is limiting. Our findings show how a single endocrine factor integrates very different cellular activities during the generation of adult form

Positive effects of methylphenidate on hyperactivity are moderated by monoaminergic gene variants in children with autism spectrum disorders.

Methylphenidate (MPH) reduces hyperactive-impulsive symptoms common in children with autism spectrum disorders (ASDs), however, response and tolerability varies widely. We hypothesized monoaminergic gene variants may moderate MPH effects in ASD, as in typically developing children with attention-deficit/hyperactivity disorder. Genotype data were available for 64 children with ASD and hyperactivity who were exposed to MPH during a 1-week safety/tolerability lead-in phase and 58 who went on to be randomized to placebo and three doses of MPH during a 4-week blinded, crossover study. Outcome measures included the Clinical Global Impression-Improvement (CGI-I) scale and the Aberrant Behavior Checklist (ABC-hyperactivity index). A total of 14 subjects discontinued the study because of MPH side effects. Subjects were genotyped for variants in DRD1-DRD5, ADRA2A, SLC6A3, SLC6A4, MAOA and MAOB, and COMT. Forty-nine percent of the sample met positive responder criteria. In this modest but relatively homogeneous sample, significant differences by DRD1 (P=0.006), ADRA2A (P<0.02), COMT (P<0.04), DRD3 (P<0.05), DRD4 (P<0.05), SLC6A3 (P<0.05) and SLC6A4 (P<0.05) genotypes were found for responders versus non-responders. Variants in DRD2 (P<0.001) and DRD3 (P<0.04) were associated with tolerability in the 14 subjects who discontinued the trial. For this first MPH pharmacogenetic study in children with ASD, multiple monoaminergic gene variants may help explain individual differences in MPH's efficacy and tolerability

The Agent Pattern Driven Business Engineering (APBDE) approach enabled business-based systems

Agent design patterns form a new methodology used to improve the development of software agents. Agent design patterns can help by capturing solutions to common problems in agent design [Lange and Oshima, 1998].Agent design patterns are applied in different systems such as knowledge management systems, real-time systems, and network management systems. Agent design patterns for business-based systems, aim to support different ecommerce paradigms business-to-business (B2B) and business-to-consumer (B2C).In this paper, we developed an approach for extracting agent-based design patterns for B2C e-commerce to improve business-based processes.This approach is called an Agent Pattern Driven Business Engineering (APDBE).Based on this approach, we derived two agent-based commerce design patterns namely, the De-coupler Design Pattern (DecDP), and the Dynamic Design Pattern (DynDP). These design patterns are used to support selling/buying-based processes in e-commerce domain

Note on the invariant classification of vacuum type D spacetimes

We illustrate the fact that the class of vacuum type D spacetimes which are $\mathcal{I}$-\emph{non-degenerate} are invariantly classified by their scalar polynomial curvature invariants