6 research outputs found
MULTIPLIKASI TUNAS, PERAKARAN DAN AKLIMATISASI TANAMAN SAMBANG NYAWA (Gynura procumbens)
Shoots Multiplication, Rooting, and Acclimatization of Gynura procumbensThe research was performance to obtain shoots multiplication, rooting and acclimati-zation of Gynura procumbens was conducted January 2004 to May 2005 at the Laboratory of Tissue Culture of Gremplasm and Breeding Division. This research was conducted within two steps, i.e. 1) : Shoots multiplication in : MS + BA (0; 0,1; 0,3 and 0,5 ) mg/l; 2) rooting and acclimatization. Explants were culture on rooting medium MS + IAA (0,1; 0,3); MS + IBA (0,1; 0,3) or NAA (0,1 and 0,3) mg/l. Acclimatization were performanced on the two kinds of media i.e. dung manure + soil (1 : 1) or husk + soil (1 : 1). Rooting and shoots multiplication were arranged in completely randomized design, with 10 replications and 2 explants for each bottle. Acclimatization was arranged in randomized-block design with 10 replications and 1 plantlet for each treatment. The results showed the best medium for multiplication shoot was MS-free hormone with 5,4 shoots, 2 months after cultured. The highest number of roots was obtained in NAA 0,1 mg/l with 9,3/plantet. MS + IBA 0,3 mg/l give the longest roots (9,58 cm) and IAA 0,1 mg/l the highest number of leaf (12/plantet). Interaction between the source medium and acclimatization medium was observed however, there was no significantly difference between IAA 0,1 mg/l and IBA 0,1 mg/l in number of shoots and long shoots (5,2 and 5,01 cm).
Pelaksanaan Pemberian Asuransi terhadap Korban Kecelakaan Lalu Lintas oleh PT. Jasa Raharja di Kota Pekanbaru
Transportation has a very broad role and importance for the economicdevelopment of the nation. Developments in science and technology especially in thefield of traffic and transportation, it not only provides benefits and positive influenceon the behavior of people\u27s lives, but it can also have negative impacts, such as theemergence of problems in areas such as traffic accidents.The government through the Law. 34 Year 1964 on Road Traffic AccidentFund provides insurance benefits for victims of traffic accidents, which in thisimplementation is left to the PT. Jasa Raharja (Persero). Duties and responsibilitiesare to collect funds from the public through donations compulsory motor vehicleowners are performed each year, and thereafter is channeled back to the communitythrough the insurance compensation to the victim or the victim\u27s heirs, which aim toreduce the burden of costs due to road traffic accidents, which given the amount ofcompensation has been set in the Regulation of the Minister of Finance DecreeNo.36/PMK.010/2008 of Great Benefit and Contribution Compulsory Road TrafficAccident Fun
STUDI PENDAHULUAN : INDUKSI KALUS EMBRIOGENIK DARI EKSPLAN DAUN Echinaceae purpurea
Echinaceae is an introduced medicinal plant used to improve immune system of the body. Lately, interest on Echinaceae increased, however, good plant material for development is limited. One method to multiply plant material is the in vitro culture, so that research and development especially in vitro multiplication is required. The aim of the experiment is to procure a medium for the induction of embryonic callus and the technique of regeneration. The experiment is conducted at the Laboratory of Breeding and Genetic Resources, ISMECRI from January to December 2002, consisted of 2 steps, namely(1). Embryonic callus induction, (2). Callus regeneration. In the first step, explants were transferred into MS medium enrich with BA 0,1 mg/l + 2,4 D 0,5 mg/l and a combination medium of MS and LS medium supplemented with glutamine + BA (0,1 mg/l; 0,2 mg/l) + 2,4 D (0,5mg/l ; 1 mg/l). In the second step, regeneration was conducted on medium MS combined with LS + BA (0 mg/l + 0,2 mg/l + 0,4 mg/l), MS combined with LS + Kinetine (0,2 mg/l; 0,4 mg/l). The results showed that embryonic callus was obtained from culture of leaf explants on MS medium combined with LS. The best treatment for step regeneration was MS combined LS + BA 0,4 mg/l for shoot formation while MS combined LS + kinetine 0,4 mg/l induced root formation.
Determining crystal structures through crowdsourcing and coursework
We show here that computer game players can build high-quality crystal structures. Introduction of a new feature into the computer game Foldit allows players to build and real-space refine structures into electron density maps. To assess the usefulness of this feature, we held a crystallographic model-building competition between trained crystallographers, undergraduate students, Foldit players and automatic model-building algorithms. After removal of disordered residues, a team of Foldit players achieved the most accurate structure. Analysing the target protein of the competition, YPL067C, uncovered a new family of histidine triad proteins apparently involved in the prevention of amyloid toxicity. From this study, we conclude that crystallographers can utilize crowdsourcing to interpret electron density information and to produce structure solutions of the highest quality
Effect of the COVID-19 pandemic on surgery for indeterminate thyroid nodules (THYCOVID): a retrospective, international, multicentre, cross-sectional study
Background: Since its outbreak in early 2020, the COVID-19 pandemic has diverted resources from non-urgent and elective procedures, leading to diagnosis and treatment delays, with an increased number of neoplasms at advanced stages worldwide. The aims of this study were to quantify the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic; and to evaluate whether delays in surgery led to an increased occurrence of aggressive tumours.
Methods: In this retrospective, international, cross-sectional study, centres were invited to participate in June 22, 2022; each centre joining the study was asked to provide data from medical records on all surgical thyroidectomies consecutively performed from Jan 1, 2019, to Dec 31, 2021. Patients with indeterminate thyroid nodules were divided into three groups according to when they underwent surgery: from Jan 1, 2019, to Feb 29, 2020 (global prepandemic phase), from March 1, 2020, to May 31, 2021 (pandemic escalation phase), and from June 1 to Dec 31, 2021 (pandemic decrease phase). The main outcomes were, for each phase, the number of surgeries for indeterminate thyroid nodules, and in patients with a postoperative diagnosis of thyroid cancers, the occurrence of tumours larger than 10 mm, extrathyroidal extension, lymph node metastases, vascular invasion, distant metastases, and tumours at high risk of structural disease recurrence. Univariate analysis was used to compare the probability of aggressive thyroid features between the first and third study phases. The study was registered on ClinicalTrials.gov, NCT05178186.
Findings: Data from 157 centres (n=49 countries) on 87 467 patients who underwent surgery for benign and malignant thyroid disease were collected, of whom 22 974 patients (18 052 [78·6%] female patients and 4922 [21·4%] male patients) received surgery for indeterminate thyroid nodules. We observed a significant reduction in surgery for indeterminate thyroid nodules during the pandemic escalation phase (median monthly surgeries per centre, 1·4 [IQR 0·6-3·4]) compared with the prepandemic phase (2·0 [0·9-3·7]; p<0·0001) and pandemic decrease phase (2·3 [1·0-5·0]; p<0·0001). Compared with the prepandemic phase, in the pandemic decrease phase we observed an increased occurrence of thyroid tumours larger than 10 mm (2554 [69·0%] of 3704 vs 1515 [71·5%] of 2119; OR 1·1 [95% CI 1·0-1·3]; p=0·042), lymph node metastases (343 [9·3%] vs 264 [12·5%]; OR 1·4 [1·2-1·7]; p=0·0001), and tumours at high risk of structural disease recurrence (203 [5·7%] of 3584 vs 155 [7·7%] of 2006; OR 1·4 [1·1-1·7]; p=0·0039).
Interpretation: Our study suggests that the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic period could have led to an increased occurrence of aggressive thyroid tumours. However, other compelling hypotheses, including increased selection of patients with aggressive malignancies during this period, should be considered. We suggest that surgery for indeterminate thyroid nodules should no longer be postponed even in future instances of pandemic escalation.
Funding: None
Measurements of the Total and Differential Higgs Boson Production Cross Sections Combining the H??????? and H???ZZ*???4??? Decay Channels at =8??????TeV with the ATLAS Detector
Measurements of the total and differential cross sections of Higgs boson production are performed using 20.3~fb of collisions produced by the Large Hadron Collider at a center-of-mass energy of TeV and recorded by the ATLAS detector. Cross sections are obtained from measured and event yields, which are combined accounting for detector efficiencies, fiducial acceptances and branching fractions. Differential cross sections are reported as a function of Higgs boson transverse momentum, Higgs boson rapidity, number of jets in the event, and transverse momentum of the leading jet. The total production cross section is determined to be . The measurements are compared to state-of-the-art predictions.Measurements of the total and differential cross sections of Higgs boson production are performed using 20.3 fb-1 of pp collisions produced by the Large Hadron Collider at a center-of-mass energy of s=8 TeV and recorded by the ATLAS detector. Cross sections are obtained from measured H→γγ and H→ZZ*→4ℓ event yields, which are combined accounting for detector efficiencies, fiducial acceptances, and branching fractions. Differential cross sections are reported as a function of Higgs boson transverse momentum, Higgs boson rapidity, number of jets in the event, and transverse momentum of the leading jet. The total production cross section is determined to be σpp→H=33.0±5.3 (stat)±1.6 (syst) pb. The measurements are compared to state-of-the-art predictions.Measurements of the total and differential cross sections of Higgs boson production are performed using 20.3 fb of collisions produced by the Large Hadron Collider at a center-of-mass energy of TeV and recorded by the ATLAS detector. Cross sections are obtained from measured and event yields, which are combined accounting for detector efficiencies, fiducial acceptances and branching fractions. Differential cross sections are reported as a function of Higgs boson transverse momentum, Higgs boson rapidity, number of jets in the event, and transverse momentum of the leading jet. The total production cross section is determined to be . The measurements are compared to state-of-the-art predictions