180 research outputs found
Pengaruh Pemberian Dark Chocolate Terhadap Skala Nyeri Menstruasi (Dismenorea Primer) Pada Remaja Putri
No full textDismenorea dapat dikurangi atau dicegah dengan mengkonsumsi coklat karena dapat meningkatkan kadar esterogen yang nantinya dapat memicu lepasnya prostaglandin. Remaja putri di desa alue padee mengalami nyeri menstruasi yang dapat mengganggu kenyamanan dan dalam kegiatan lainnya sehingga untuk mengurangi nyeri menstruasi dengan mengkonsumsi obat penghilang nyeri. Tujuan penelitian untuk mengetahui pengaruh pemberian dark chocolate terhadap skala nyeri saat menstruasi pada remaja putri di desa Aluee Padee Kabupaten Aceh Barat Daya. Desain penelitian menggunakan eksperimen semu (quasi experimen) dengan rancangan penelitian adalah pretest-posttest control group design dengan populasi sebanyak 80 remaja putri dan sampel sebanyak 30 responden. Teknik sampel menggunakan accidental sampling. Penelitian ini dilakukan pada tanggal 22 Maret sampai dengan 05 April Tahun 2021. Hasil penelitian didapatkan bahwa rata-rata nyeri menstruasi sebelum diberikan dark chocolate yaitu 4,07 dengan nilai standar deviasi (SD) sebesar 0,640. Sedangkan nilai rata-rata skala nyeri menstruasi setelah diberikan dark chocolate yaitu 3,00 dengan nilai standar deviasi (SD) sebesar 0,743. Hasil uji statistik memperlihatkan nilai P value 0,014 yang artinya ada pengaruh nyeri menstruasi sebelum dan setelah diberikan dark chocolate pada remaja putri di Desa Alue Padee Kabupaten Aceh Barat Daya Tahun 2021. Disarankan bagi remaja putri saat menstruasi dapat melakukan terapi pengurangan nyeri dengan dark chocolate
Hypoglycemic effect of a leaf extract of Pseuderanthemum palatiferum (Nees) Radlk. in normal and streptozotocin-induced diabetic rats
No full textPerformance of Thermal Insulation Covering Materials to Reduce Postharvest Losses in Okra
No full textThe efficiency of different thermal insulation covers in minimizing temperature fluctuations in cool chain management was investigated to reduce postharvest loss and maintain okra quality during storage and transportation. The four thermal insulation covering materials: (1) heat reflective sheet with thin nonwoven (HRS + TNNW), (2) heat reflective sheet with thick nonwoven (HRS + TKNW), (3) metalized Tyvek® (MTyvek) and (4) metalized foam sheet (MFS) were studied and compared with perforated linear low-density polyethylene (P-LLDPE) as the typical handing package for okra distribution alongside no covering as the control. The material properties, transpiration rate, vital heat, temperature profiles (air and pulp temperatures), relative humidity, mass loss and incidence of decay were determined throughout a simulated supply chain. Results exhibited that HRS + TNNW and HRS + TKNW covers had the lowest thermal heat energy (Qx) and moderate R-value. These two covers maintained low temperature fluctuation with the lowest rate of air and pulp temperature changes, reflecting in lowest mass loss and decay in okra. The HRS + TNNW cover yielded less decay (1%) in okra, compared to commercial covers; MTyvek (16%) and MFS (9%). Results showed that HRS + TNNW exhibited great potential as a thermal insulation cover to reduce postharvest loss in okra (5%) compared to typical handling (11–18%) and could be considered as alternative material to reduce the use of foam sheets in cool chain management distribution packaging of okra under ambient environment conditions
Measurement of asymmetries in decays
No full textA search for violation in and decays is presented using the full Run 1 and Run 2 data samples of collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the -violating asymmetries are measured to be and , where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be and , constituting the most precise measurements of these asymmetries to date.A search for CP violation in Λb0→pK- and Λb0→pπ- decays is presented using the full Run 1 and Run 2 data samples of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 fb-1 at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the CP-violating asymmetries are measured to be ACPpK-=(-1.4±0.7±0.4)% and ACPpπ-=(0.4±0.9±0.4)%, where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be ACPpK-=(-1.1±0.7±0.4)% and ACPpπ-=(0.2±0.8±0.4)%, constituting the most precise measurements of these asymmetries to date.A search for violation in and decays is presented using the full Run 1 and Run 2 data samples of collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the -violating asymmetries are measured to be and , where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be and , constituting the most precise measurements of these asymmetries to date
Measurement of φ(1020) meson production in fixed-target p Ne collisions at √s_NN = 68.5 GeV
No full textThe first measurement of φ(1020) meson production in fixed-target p Ne collisions at √s_NN = 68.5 GeV is presented. The φ(1020) mesons are reconstructed in their K+ K− decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of 21.7 ± 1.4 nb^−1, collected by the LHCb detector at CERN. The φ(1020) production cross-section in the centre-of-mass rapidity range of −1.8 < y* < 0 and transverse momentum range of 800 < p_T < 6500 MeV/c is found to be σ = 182.7 ± 2.7(stat.) ± 14.1(syst) μb/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the φ(1020) meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values
Macrobrachium forcipatum Ng 1995
No full textMacrobrachium forcipatum Ng, 1995 (figures 18E, F, 19) Macrobrachium forcipatum Ng, 1995: 249, figures 2–4 [type locality: Tasek Temengor, northern peninsular Malaysia]. Materials examined H: W, cl 14.1 mm (ZRC 1995.264), Tasik Temengor, south of Banding, Sungai Halong, coll. K. K. P. Lim and H. H. Tan, 1–4 November 1993. P: 12 WW, 2 ovigerous XX, cl 8.6–10.4 mm, eggs 1.7× 1.1 mm (ZRC 1995.265), data same as holotype. South Thailand. Twelve WW, cl 10.0–14.0 mm, 8 XX, cl 8.5–11.5 mm, 6 ovigerous XX, cl 8.2–9.2 mm, egg with eyes, 1.2×1.0 mm (ZRC 2000.2643), Narathiwat Province, Ban Sac tributary of Sungai Kolok, ca 19.5 km westwards towards Waeng at T-junction from Sungai Kolok to Waeng and Sungai Padi, 5°47.49∞N, 101°80∞E, pH 7.6, coll H. H. Tan et al., 23 October 1998; 12 WW, cl 7.5–13 mm, 3 XX, cl 7.5–12 mm, 16 ovigerous XX, cl 8–12 mm (ZRC 2000.2703), Nam Tok Tone Sai, Phuket, coll. P. K. L. Ng and H. H. Tan, 8 April 1998; 12 WW, cl 12–14 mm, 3 ovigerous XX, cl 9–11 mm (ZRC 2000.2675), Nam Tok Ton Sai, Phuket; 7°55.96∞N, 98°19.43∞E, coll. P. K. L. Ng and H. H. Tan, 8 April 1999; 3 WW, cl 11.1–15.3 mm (CU 1997.135), Satun, coll. P. Naiyanetr, 22 March 1982; 3 WW, cl 9.8–16.5 mm, 3 XX, cl 7.5–8.0 mm, 8 ovigerous XX, cl 8.5–10.5 mm, eggs with eye spot, 1.5× 1.2 mm (ZRC 2000.2672), Narathiwat Province, Nam Tok Sipo, downstream area, 6°16.06∞N, 101°38.65∞E, coll. H. H. Tan et al., 24 October 1998; 6 WW, cl 9.7–11.4 mm, 4 XX, cl 8.5–9.2 mm, 10 ovigerous XX, cl 8.5–11.5 mm, eggs 1.4×1.0 mm (ZRC 2000.2671), Songkhla Province, Nam Tok Khao Chong km 25 on road to Trang from Phattalung, 7°39.71∞N, 100°2.33∞E, coll. H. H. Tan et al., 26 October 1998; 16 WW, cl 10.0– 12.6 mm, 5 ovigerous XX, cl 8.2–9.6 mm, 46 specimens (ZRC 2000.2674), Songkhla Province, Plak Khlong, Padi fields on road to Thale Noi from Phatalung, 7°44.46∞N, 100°4.83∞E, coll. H. H. Tan et al., 25 October 1998; 1 W, cl 13.5 mm, 1 ovigerous X, cl 8.0 mm, eggs 1.5×1.0 mm (ZRC 2000.2676), Satun Province, stream in Ban Kong Kruat, pH 6.0, coll. M. Kottelat, 4 November 1995; nine specimens (5 ovigerous XX), Narathiwat Province, stream at Phu Khao Tong, 6 km west of Ban Buke Ta, pH 6.5, coll. M. Kottelat, 2 November 1995; 2 WW, cl 7.8–11.6 mm, 1 X, cl 8.5 mm, 1 ovigerous X, cl 10.0 mm, eggs with eyes, 0.8× 1.4 mm (ZRC 2000.2673), Narathiwat Province, Bocha Bhudo Padee National Park, 6°29.99∞N, 101°38.15∞E, pH 7.2, coll. H. H. Tan et al., 24 October 1998; 1 W, cl 12.0 mm, 3 ovigerous XX, cl 9.5–11.0 mm (ZRC 2000.2681), Sungai Kolok, coll. K. Kobota, no date; 3 WW, four other specimens, Phuket, 18 March 1982; 1 W, cl 13.0 mm (CU 1997.138), Kakhon, Si Thammarat, 19 May 1976, coll. P. Naiyanetr; 1 W, cl 13.1 mm (CU 1997.127), Krabi, 28 October 1988; 1 W, cl 9.0 mm, 1 ovigerous X, cl 9.0 mm, seven other specimens (CU 1997.17), Bang Pat waterfall, Phuket, 9 August 1986; 20 specimens (CU 1997.18), Kathu waterfall, Phuket, 17 October 1986; 1 W, cl 8.0 mm, 1 ovigerous X, Thai Muang, Phang Nga, 25 August 1986; 15 specimens, cl 9.0–11.0 mm (CU 1997.22), Phang Nga, 1 April 1986; 1 W, cl 12.5 mm, 1 ovigerous XX, cl 9.0 mm, Thap Put river, 24 August 1986; four specimens (CU 1997.85), Phang Nga, 7 September 1986; 3 WW (CU 1997.124), Phang Nga, 16 March 1989; 1 W (CU 1997.152), Satun, coll. P. Naiyanetr, 22 March 1982; five specimens, Uttaradit, 20 February 1997; five specimens (CU 1997.157), Phang Nga, coll. P. Naiyanetr, 17 March 1982; 3 WW, cl 13.2–13.4 mm (CU 1997.136), Songkhla, 22 March 1982; 5 WW, cl 12.5–14.45 mm (CU 1997.130), Songkhla, 22 May 1982; 2 WW, cl 13.3–12.5, 1 X, cl 11.9 mm (CU 1997.124), Phang Nga, 16 March 1989; 2 WW, cl 11.2–11.3 mm, 1 ovigerous X, eggs 1.3×1.0 mm (CU 1997.151), coll. Sari Chumphon, 12 December 1981; 1 W, cl 12.7 mm (CU 1997.125), Pattani, coll. S. Panha, 25 March 1982; 2 XX, cl 8.2–11.0 mm (one ovigerous, eggs with eye spots, 1.6× 1.3 mm) (CU 1997.128), Nakhon Si Thammarat, 19 May 1976; 2 WW, cl 11.2–13.0 mm (CU 1997.145), Nakhon Si Thammarat, coll. P. Naiyanetr, 9 March 1976; 2 WW, cl 13.0– 14.5 mm (CU 1997.154), Sarat Thani, 27 March 1982; 6 WW, cl 9.5–14.0 mm, 2 ovigerous XX, cl 0.85 mm (CU 1997.1), Phang Nga, coll. P. Naiyanetr, 1989; 2 WW, cl 11.5–12.5 mm, 3 ovigerous XX, cl 8.0– 8.5 mm (CU 1997.2), Ramun waterfall, 2 km from Phang Nga, 9 August 1982; 6 WW, cl 10.0– 12.5 mm, 1 ovigerous X, cl 10.0 mm (CU 1997.3), Tao Thong waterfall, Thap Put Phang Nga, 8 March 1986; 3 WW, cl 7.8–9.5 mm, 2 XX, cl 7.2–8.0 mm (CU 1997.4), Takua Thung, Phang Nga, 27 June 1986; 3 WW, cl 7.0– 10.5 mm, 5 XX, cl 8.0– 9.5 mm (CU 1997.5), Kapong waterfall, Phang Nga, 21 June 1986; 1 W, cl 11.0 mm (CU 1997.6), Lumru waterfall, Kapong, Phang Nga, 12 July 1986; 37 specimens, cl 10.0–13.0 mm (CU 1997.21), Ton Sai waterfall, Thalang, Phuket, 8 April 1987; 2 WW, cl 9.0–12.0 mm, 2 ovigerous XX, cl 8.0–9.0 mm, 14 other specimens (CU 1997.23), Bag Pa waterfall, Thalang, Phuket, 14 October 1986; 10 WW, cl 8.0–13.0 mm, 2 ovigerous XX, cl 7.5–9.5 mm (CU 1997.25), Thap Put Tao Thong waterfall, Pang Nga, 27 March 1987; six specimens (CU 1997.68), no data; 1 W, cl 13.0 mm (CU 1997.127), Krabi, 28 October 1988; three specimens, Satun, coll. P. Naiyanetr, 22 March 1982; 2 WW, cl 10–105 mm (CU 1997.120), Nakhon Si Thammarat, coll. Pen Sak Tan, October 1976; 1 ovigerous X, cl 12.5 mm, 1 X, cl 18.5 mm (CU 1997.128), Nakhon Si Thammarat, 19 May 1976; one specimen, Nakhon Si Thammarat, 13 October 1988; four specimens (CU 1997.146), Chumphon, 23 July 1977; two specimens (CU 1997.148), Phatthalung, coll. P. Naiyanetr, 28 May 1976; four specimens (CU1997.149), Phuket, 18 May 1982; two specimens (CU 1997.150), Narathiwat, 28 May 1977; three specimens (CU 1997.151), Sawi, Chumphon, 12 December 1981; nine specimens (CU 1997.154), Surat Thani, coll. P. Naiyanetr, 27 March 1982. West Thailand. One W, cl 7.8 mm, 2 XX, cl 6.2–8.5 mm, 1 ovigerous X, cl 7.5 mm, eggs 1.0× 1.5 mm (ZRC 2000.2682), Ratchaburi, Mae Nam Phachi at Ban Phachi, coll. M. Kottelat and K. Kubota, 2 April 1998. Thai specimens with no specific locality. One W, cl 7.5 mm, 1 X, cl 8.0 mm, 1 ovigerous X, cl 10.0 mm (CU 1997.53); 2 WW, cl 8.3–8.9 mm, 1 X, cl 11.5 mm, 1 ovigerous X, cl 7.0 mm, 2 WW, cl 13.4–15.0 mm (CU 1997.144). Diagnosis Rostrum short, straight or slightly convex, reaching to third segment of antennular peduncle or slightly beyond end of this segment; rostral formula 3–5+5–8/1–3, dorsal teeth more widely spaced posteriorly than anteriorly. Antennal spine sharp, hepatic spine small, situated below and behind antennal spine. Eyes well developed, large, about 0.25 times as long as carapace. Scaphocerite 2.7 times as long as broad, with straight outer margin. Epistome as in figure 19B. First to third abdominal sternites (figure 19C) with transverse ridge, with median tooth, that of first abdominal sternum largest, that of second small, that of third absent. First pereiopod with fingers slightly shorter than palm, chela 0.6 times as long as carpus. Male second pereiopods unequal in length; major male second pereiopod distinctively longer than body, covered with dense tufts of velvety pubescence on palm and fingers; fingers as long as or slightly longer than palm, with 7–10 large teeth on both cutting edges, not gaping when fingers closed; chela 4.8 times as long as carpus, carpus 1.4 times as long as wide. Third pereiopod reaching beyond scaphocerite by length of entire dactylus; propodus 2.6–3.0 times as long as dactylus. Uropodal diaeresis with a spine about half length of outer angle. Ovigerous females with eggs 1.0–1.1× 1.4–1.7 mm. Remarks With regards to its relatively larger eye, small egg size, and the fewer number of larger teeth and denticles on the cutting edges of the fingers, M. forcipatum can easily be separated from its closest congeners, M. hirsutimanus and M. eriocheirum (see Remarks on M. hirsutimanus and M. eriocheirum for details). Macrobrachium forcipatum can be distinguished from M. pilimanus by the form of rostrum, postorbital teeth occupying one-third the carapace length (versus 0.14–0.20 times), more widely spaced postorbital teeth (versus more closely spaced postorbital than anterior dorsal rostal teeth) and the fewer number of teeth on the cutting edges of the fingers of the male second pereiopod (7–10 versus 14–17). M. forcipatum is distributed in northern peninsular Malaysia and southern Thailand.Published as part of Cai, Y., Naiyanetr, P. & Ng, P. K. L., 2004, The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae), pp. 581-649 in Journal of Natural History 38 (5) on pages 630-633, DOI: 10.1080/0022293021000033238, http://zenodo.org/record/525870
The spin-dependent structure function of the proton g(1)(p) and a test of the Bjorken sum rule
No full textAlekseev MG, Alexakhin VY, Alexandrov Y, et al. The spin-dependent structure function of the proton g(1)(p) and a test of the Bjorken sum rule. Phys.Lett. B. 2010;690(5):466-472.The inclusive double-spin asymmetry. A(1)(p), has been measured at COMPASS in deep-inelastic polarised muon scattering off a large polarised NH3 target. The data, collected in the year 2007, cover the range Q(2) > 1 (GeV/c)(2), 0.004 < x < 0.7 and improve the statistical precision of g(1)(p)(x) by a factor of two in the region x < 0.02. The new proton asymmetries are combined with those previously published for the deuteron to extract the non-singlet spin-dependent structure function g(1)(NS)(x. Q(2)). The isovector quark density, Delta q(3)(x, Q(2)), is evaluated from a NLO QCD fit of g(1)(NS). The first moment of Delta q(3) is in good agreement with the value predicted by the Bjorken sum rule and corresponds to a ratio of the axial and vector coupling constants vertical bar g(A)/g(V)vertical bar = 1.28 +/- 0.07 (stat.) +/- 0.10 (syst.). (C) 2010 Elsevier B.V. All rights reserved
Observation of the decay B0s → K0p(p)over-bar and measurement of the B0(s) → K0p(p)over-bar branching fractions
No full textA study of the charmless baryonic decays Bs0→K0pp ̄ is presented, where Bs0 denotes either a B0 or a Bs0 meson. The analysis is based on proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The decay Bs0→K0pp ̄ is observed for the first time, with a measured branching fraction of (9.14 ± 1.69 ± 0.90 ± 0.33 ± 0.20) × 10−7 and a significance of 5.6σ. The uncertainties respectively account for statistical and systematic contributions, the precision of the branching fraction of the normalisation channel B0→ K0π+π− and the fragmentation fraction ratio fs/fd. The branching fraction determined for B0→K0pp ̄ is (2.82 ± 0.08 ± 0.12 ± 0.10) × 10−6, which is the most precise measurement to date
Gluon polarization in the nucleon from quasi-real photoproduction of high-p hadron pairs
No full textWe present a determination of the gluon polarization DeltaG/G in the nucleon, based on the helicity asymmetry of quasi-real photoproduction events, Q2 < 1 (GeV/c)2, with a pair of large transverse-momentum hadrons in the final state. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarized muon beam scattered on a polarized 6LiD target. The helicity asymmetry for the selected events is A/D = 0.002 ± 0.019(stat) ± 0.003(syst). From this value, we obtain in a leading-order QCD analysis DeltaG/G = 0.024 ± 0.089(stat) ± 0.057(syst) at xg = 0.095 and μ2 ~ 3 (GeV/c)2
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