Win the Battle with Giant Foxtail

Unless this aggressive weed is fought with determination it can be a real menace to crops. But you can beat it and any other foxtail. Here\u27s how

Make War on Thistles

Nobody likes thistles. This article tells you how to identify the main types found in Iowa and sggests cultural and chemical controls you can apply

Control Milkweed

Milkweed grows in scattered areas rather than in bunches which makes it difficult to control. Here are some suggestions for countering this occastionally serious pest

Gas Phase Chromatography of some Group 4, 5, and 6 Halides

Gas phase chromatography using The Heavy Element Volatility Instrument (HEVI) and the On Line Gas Apparatus (OLGA III) was used to determine volatilities of ZrBr{sub 4}, HfBr{sub 4}, RfBr{sub 4}, NbBr{sub 5}, TaOBr{sub 3}, HaCl{sub 5}, WBr{sub 6}, FrBr, and BiBr{sub 3}. Short-lived isotopes of Zr, Hf, Rf, Nb, Ta, Ha, W, and Bi were produced via compound nucleus reactions at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory and transported to the experimental apparatus using a He gas transport system. The isotopes were halogenated, separated from the other reaction products, and their volatilities determined by isothermal gas phase chromatography. Adsorption Enthalpy ({Delta}H{sub a}) values for these compounds were calculated using a Monte Carlo simulation program modeling the gas phase chromatography column. All bromides showed lower volatility than molecules of similar molecular structures formed as chlorides, but followed similar trends by central element. Tantalum was observed to form the oxybromide, analogous to the formation of the oxychloride under the same conditions. For the group 4 elements, the following order in volatility and {Delta}H{sub a} was observed: RfBr{sub 4} > ZrBr{sub 4} > HfBr{sub 4}. The {Delta}H{sub a} values determined for the group 4, 5, and 6 halides are in general agreement with other experimental data and theoretical predictions. Preliminary experiments were performed on Me-bromides. A new measurement of the half-life of {sup 261}Rf was performed. {sup 261}Rf was produced via the {sup 248}Cm({sup 18}O, 5n) reaction and observed with a half-life of 74{sub -6}{sup +7} seconds, in excellent agreement with the previous measurement of 78{sub -6}{sup +11} seconds. We recommend a new half-life of 75{+-}7 seconds for {sup 261}Rf based on these two measurements. Preliminary studies in transforming HEVI from an isothermal (constant temperature) gas phase chromatography instrument to a thermochromatographic (variable temperature) instrument have been completed. Thermochromatography is a technique that can be used to study the volatility and {Delta}H{sub a} of longer-lived isotopes off-line, Future work will include a comparison between the two techniques and the use of thermochromatography to study isotopes in a wider range of half-lives and molecular structures

„Still offline”: evidence from qualitative studies on the hybridization of spontaneous cognitive activity

Background: In the contemporary culture we observed a kind of apology for the hybridization of cognitive activity. Nevertheless, we don’t know is it a real phenomenon or only a facade. To shed some new light on this issue, we investigated two qualitative studies on the hybridization of spontaneous cognitive activity. Methods: Three martial arts masters and four triathletes took part in these studies. A structured interview was used to collect data. Results: We found that professional and experienced athletes do not recognize a big potential for hybridization. They can’t imagine a strong hybridization of own, and their students, spontaneous cognitive activity, both in the current and the future technological reality. Conclusions: This study contradicts the idea of the superiority (in the cognitive contexts) of what online, over what offline.4211712910.14746/se.2016.41.8Studia edukacyjn

Gain switched multi-carrier transmitter and pilot tone based receiver for long reach access networks

A novel and cost effective long reach PON downlink scenario is proposed employing a multi-carrier transmitter and pilot tone aided direct detection at the receiver. Error free performance with QPSK and 50km transmission is presented

PO-030 Oxidative phosphorylation in response to high intensity interval training

Objective The aim of our study was to investigate  the adaptive effect of six sessions of high intensity interval training (HIIT) on changes in the amount and activity of mitochondrial enzymes. Methods Twenty seven students (age 21.2±0.9) were assigned to HIIT (n=10) and control (CON, n=17) group and performed six training sessions for 14 days:  6 × 90 s intervals at 80% maximal aerobic power (MAP) output separated by 180 s rest. Pre and post interventions anthropometric measurements, maximal activity of citrate synthase (CS) and 3-HydroxyacylCoA (HADH) was determined in muscle samples. The effect of HIIT on proteins involved in oxidative phosphorylation (OXPHOS) in the skeletal muscle was used via proteomic analysis’s. We took into consideration 89 identified subunits from the mitochondrial respiratory chain complexes and the ATP synthase complex. For these proteomic tests a muscle biopsy samples from the three representative participants HIIT and three CON before and after training were collected.  Results Training induced the moderate and large effects in maximal enzymes activities CS and HADH. The HIIT caused the increase of level proteins involved in oxidative phosphorylation. Conclusions HIIT can be an optimal strategy for the prevention of certain civilization diseases or for the rehabilitation of diseases, especially cardiovascular disease

Studies on the effectiveness of SCR catalysts during combustion of pulverized coal

The motivation of this paper is new NOx emission regulations according to IED Directive 2010/75/EU of EU which introduce the BAT’s conclusions as binding. The paper presents the methodology and results of research on the effectiveness of SCR catalysts during combustion of pulverised coal in a model furnace installed at the Institute of Power Engineering and Turbomachinery of the Silesian University of Technology (IPET). The aim of the research was to search for catalysts that could be placed in a regenerative rotary air heater - RAH-SCR. Two catalysts were tested: a commercial plate-type based on V2O5 and a prototype ceramic based on platinum. Presented results of investigation demonstrate a potentially high efficiency of RAH-SCR installations which can meet new environmental regulations of NOx emission. The highest NOx reduction efficiency (92.87%) was obtained for an industrial catalyst at 329°C, from about 436.3 to 31.1 mg/m3 as NO2 @ 6%O2 to 31,1. At lower temperature, 260°C maximum efficiency of NOx reduction does not exceed 60%, from 440,0 to 169,6 mg/m3. The placement of the catalyst in the RAH can also be a support for SNCR installations due to the increase in DeNOx efficiency and reduction of NH3 slip

DNA methylation clock DNAmFitAge shows regular exercise is associated with slower aging and systemic adaptation

DNAmPhenoAge, DNAmGrimAge, and the newly developed DNAmFitAge are DNA methylation (DNAm)-based biomarkers that reflect the individual aging process. Here, we examine the relationship between physical fitness and DNAm-based biomarkers in adults aged 33–88 with a wide range of physical fitness (including athletes with long-term training history). Higher levels of VO 2 max ( ρ = 0.2, p = 6.4E − 4, r = 0.19, p = 1.2E − 3), Jumpmax ( p = 0.11, p = 5.5E − 2, r = 0.13, p = 2.8E − 2), Gripmax ( ρ = 0.17, p = 3.5E − 3, r = 0.16, p = 5.6E − 3), and HDL levels ( ρ = 0.18, p = 1.95E − 3, r = 0.19, p = 1.1E − 3) are associated with better verbal short-term memory. In addition, verbal short-term memory is associated with decelerated aging assessed with the new DNAm biomarker FitAgeAcceleration ( ρ : − 0.18, p = 0.0017). DNAmFitAge can distinguish high-fitness individuals from low/medium-fitness individuals better than existing DNAm biomarkers and estimates a younger biological age in the high-fit males and females (1.5 and 2.0 years younger, respectively). Our research shows that regular physical exercise contributes to observable physiological and methylation differences which are beneficial to the aging process. DNAmFitAge has now emerged as a new biological marker of quality of life

The Impact of 32 Days' Exposure to Hypobaric Hypoxia on Physiological Cost of Sub-Maximal Work Performed at the Sea Level

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