Wszystkie pola: Chemical - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Chemical school in the interwar period
Autorzy:: Cygan, K.
Powiązania:: https://bibliotekanauki.pl/articles/347766.pdf
Data publikacji:: 2017
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:: chemical troops
education
Gas School
Chemical Weaponry School
Gas Defense School
Opis:: In the current paper, the creation and development of the chemical school which as a completely new institution functioned since 1919 is presented. Despite the numerous transformations and under various names the school operated till the outbreak of the World War II. It was not only the new school but also relatively new military branch, which survived to the contemporary times. The established school had neither the tradition nor the history, however, by providing the services it managed to educate competent and professional commanders. Its educational system enabled the staff to train according to their positions or military specialties.
Źródło:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2017, 3; 5-16
1731-8157
Pojawia się w:: Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Ryzyko chemiczne. Ocena i zarządzanie
Chemical risk. Assessment and management
Autorzy:: Zieliński, S.
Powiązania:: https://bibliotekanauki.pl/articles/1287323.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:: ryzyko chemiczne
ocena ryzyka chemicznego
zarządzanie ryzykiem chemicznym
chemical risk
chemical risk assessment
chemical risk management
Opis:: W ciągu ostatnich lat nastąpił gwałtowny wzrost ilości stosowanych chemikaliów. Chociaż nie zdajemy sobie z tego sprawy, chemikalia stały się podstawą prawie we wszystkim, co robimy. Jednakże w powszechnym postrzeganiu przez społeczeństwo chemikalia są źródłem wszelkich możliwych chorób. Konsekwencją tego, mimo ograniczonej jeszcze wiedzy o szkodliwym działaniu wielu substancji, było wprowadzenie w krajach rozwiniętych systemów prawnych, których celem jest eliminowanie lub przynajmniej minimalizowanie ryzyka związanego z produkcją i użytkowaniem chemikaliów. Środkiem zapewniającym realizację takiego celu jest ocena ryzyka dla zdrowia ludzi, która jest procesem łączącym dostępne informacje o chemicznej toksyczności i ekspozycji, aby oszacować prawdopodobieństwo, że ktoś doświadczy niekorzystnych skutków zdrowotnych w wyniku ekspozycji na chemikalia. Celem jest scharakteryzowanie ryzyka dla zdrowia w zrozumiały sposób, aby w można było podjąć decyzję o znaczeniu chemicznej ekspozycji dla zdrowia ludzi i o potrzebie podjęcia działań dla kontroli stężeń chemikaliów. Ocena ryzyka i każde następne decyzje w zarządzaniu ryzykiem powinny brać pod uwagę zarówno potencjalne ryzyko, jak i korzyści ze stosowania chemikaliów.
There has been a dramatic increase in the use of chemicals in recent years. Although we don't think much about it, man-made chemicals are essential to almost everything we do. However, the public perception is that man-made chemicals are the source of every possible ill. Consequently, in spite of our limited knowledge of the hazards to humans associated with many substances, most governments in the developed world have developed legislation aimed to eliminate or at least to minimise any risks associated with production and use of chemicals. One of the tools for that is the risk assessment for human health, which is a process that combines available information on chemical toxicity and exposure to estimate the probability that someone will experience adverse health effects as a result of exposure to a chemical. The goal is to characterize health risks in an understandable way, so that decisions can be made about the public health significance of chemical exposures and the need for taking action to control concentration of chemicals. The risk assessment and any consequent risk management decisions need to take into account both the potential risks from use and the benefits which chemicals bring.
Źródło:: Chemik; 2010, 64, 12; 799-810
0009-2886
Pojawia się w:: Chemik
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Effects of Chemical Element Symbols in Identifying 2D Chemical Structural Formulas
Autorzy:: Huang, Chin-Fei
Liu, Chia-Ju
Powiązania:: https://bibliotekanauki.pl/articles/26469702.pdf
Data publikacji:: 2013-03-31
Wydawca:: Wydawnictwo Adam Marszałek
Tematy:: chemical element symbols
chemical structural formulas
event-related potentials (ERPs)
Opis:: This study aims to explore the effect of chemical element symbols in students’ identification of 2D chemical structural formulas. A chemical conceptual questionnaire, event-related potential experiments and interviews were administered to fifty university students in this study. The results revealed that high achieving students performed different brain activities and strategies to identify 2D figures (without chemical elements symbols inside) and 2D chemical structural formulas. However, low achieving students ignored the existence of chemical element symbols and performed similar brain activities and strategies when identifying 2D figures and chemical structural formulas. This paper discusses implications for new education.
Źródło:: The New Educational Review; 2013, 31; 40-50
1732-6729
Pojawia się w:: The New Educational Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Chemical incidents resulted in hazardous substances releases in the context of human health hazards
Autorzy:: Pałaszewska-Tkacz, Anna
Czerczak, Sławomir
Konieczko, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2161933.pdf
Data publikacji:: 2017-02-21
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: environmental health
public health implications
health risk assessment
Chemical Hazards
chemical incidents
hazardous chemical releases
Opis:: Objectives The research purpose was to analyze data concerning chemical incidents in Poland collected in 1999–2009 in terms of health hazards. Material and Methods The data was obtained, using multimodal information technology (IT) system, from chemical incidents reports prepared by rescuers at the scene. The final analysis covered sudden events associated with uncontrolled release of hazardous chemical substances or mixtures, which may potentially lead to human exposure. Releases of unidentified substances where emergency services took action to protect human health or environment were also included. Results The number of analyzed chemical incidents in 1999–2009 was 2930 with more than 200 different substances released. The substances were classified into 13 groups of substances and mixtures posing analogous risks. Most common releases were connected with non-flammable corrosive liquids, including: hydrochloric acid (199 cases), sulfuric(VI) acid (131 cases), sodium and potassium hydroxides (69 cases), ammonia solution (52 cases) and butyric acid (32 cases). The next group were gases hazardous only due to physico-chemical properties, including: extremely flammable propane-butane (249 cases) and methane (79 cases). There was no statistically significant trend associated with the total number of incidents. Only with the number of incidents with flammable corrosive, toxic and/or harmful liquids, the regression analysis revealed a statistically significant downward trend. The number of victims reported was 1997, including 1092 children and 18 fatalities. Conclusions The number of people injured, number of incidents and the high 9th place of Poland in terms of the number of Seveso establishments, and 4 times higher number of hazardous industrial establishments not covered by the Seveso Directive justify the need for systematic analysis of hazards and their proper identification. It is advisable enhance health risk assessment, both qualitative and quantitative, by slight modification of the data collection system so as to enable the determination of released chemical concentration and exposed populations. Int J Occup Med Environ Health 2017;30(1):95–110
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2017, 30, 1; 95-110
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Evaluation of chemical and physico-chemical indicators of water of the lakes in the city of Szczecin on the basis of the EU water framework directive
Autorzy:: Daniszewski, P.
Powiązania:: https://bibliotekanauki.pl/articles/124735.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: water
lake
chemical and physico-chemical indicators
European Union Water Framework Directive
Opis:: The work shows the evaluation of physico-chemical parameters the city of Szczecin of the landscape based on the European Union Water Framework Directive. The study was conducted on three lakes within the boundaries of the city of Szczecin on the three lakes: Glebokie, Rusalka, Szmaragdowe. Szczecin is situated in North-West Poland, in the western part of West Pomeranian Voivodeship at Polish-German border. Research was carried out in the years 2008–2012, in the period from April to October. Water samples were taken from three stations on each of the three lakes. Sample water pH was measured. The water tests were taken according to the Polish Standards. The collected water samples were fixed in accordance with the recommendations in the Polish Standards. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of sampling.
Źródło:: Journal of Ecological Engineering; 2013, 14, 3; 24-30
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: An assessment of energy expenditure of soldiers serving in the Polish chemical units, performing training tasks in 2 types of personal chemical protective clothing – comparative studies
Autorzy:: Bertrandt, Jerzy
Kłos, Anna
Łakomy, Roman
Bertrandt, Bartosz
Powiązania:: https://bibliotekanauki.pl/articles/2161950.pdf
Data publikacji:: 2019-10-16
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: chemical troops
chemical weapon
chemical and personal protective clothing
defense against CBRN hazards
NBC protection
energy expenditure
Opis:: Objectives Individual protection against contamination is the kind of protection provided to persons in an environment contaminated with radioactive substances, and war toxic or biological agents, including the use of gas masks, and insulating or filtration skin protection agents. The aim of this work was to perform a comparative assessment of energy expenditure of chemical troop soldiers wearing L-2 insulating personal protective clothes (PPC) and FOO-1 filter-sorptive PPC during training in the training ground conditions. Surveys on the subjective assessment of comfort related to using the L-2 and FOO-1 PPC were carried out as well. Material and Methods A total of 29 men doing the same training tasks, wearing the L-2 PPC and FOO-1 filter-sorptive protective clothing with an MP-5 filter gas mask, underwent the examination. Measurements of energy expenditure values were done based on the frequency of heart contractions, recorded by the Polar Sport Tester 810 heart rate monitor. Results It was found that an average energy expenditure of soldiers, resulting from performing training tasks, was lower among the subjects wearing the FOO- 1 filter-sorptive PPC, compared to the energy load of the ones using the L-2 PPC. Conclusions According to Christensen’s classification of work severity, the average energy expenditure makes it possible to qualify works performed by soldiers using both types of PPC to moderate work. In the opinion of the examined soldiers serving in the chemical troops, the FOO-1 filter-sorptive PPC increases the sense of security while on a threatened ground. The FOO-1 filter-sorptive PPC is assessed by chemical troop soldiers as better because it hinders tasks fulfillment to a lesser extent. Int J Occup Med Environ Health. 2019;32(5):645–52
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2019, 32, 5; 645-652
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Evaluation of chemical and physico-chemical indicators of water and bottom macrofauna the Resko Lake on the basis of the European Union Water Framework Directive
Autorzy:: Daniszewski, P.
Konieczny, R.
Powiązania:: https://bibliotekanauki.pl/articles/411806.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: water
lake
chemical and physico-chemical indicators
macrozoobenthos
European Union Water Framework Directive
Opis:: We carried out a detailed study of the kinetics of oxidation of N'-ferrocenylmethyl-N'-phenylbenzohydrazide (FcX) to ferrocenium ion (FcX+) in aqueous and organic mediums. This study using cyclic (CV) and rotating disk electrode (RDE) voltammetry showed that the FcX/FcX+ redox couple is reversible. The N'-ferrocenylmethyl-N'-phenylbenzohydrazide and ferrocenium ion diffusion coefficients (D) were calculated from these results. In addition, the electron transfer rate constant and the exchange current density for the oxidation of ferrocene were determined. A comparison of the kinetic data obtained from the two electrochemical techniques appears to show that the data from the RDE experiments are more reliable because they are collected under strict mass transport control. Have studied lake close to neutral pH - 7.67 to 7.73. All lakes in accordance with the classification of the European Union Water Framework Directive have been included in the first class. The concentration in the surface layer of Ptot. Lake is little differentiated, is at level II quality class according to the classification of the European Union Water Framework Directive. Tested water lakes were changing the concentration of the PO43-diss - these concentrations correspond to water quality from III. The increase of the concentrations of phosphorus in the Lake may indicate a decrease in the amount of oxygen in the waters of the shallow and changes their status to release phosphorus compounds accumulated redox in sediment bottom. In the case of nitrogen-compounds nitrates and nitrites values for these indicators were at level I and II class in all the surveyed lakes in accordance with the classification of the European Union Water Framework Directive. Indicator, which indicates the high productivity of Lake is the biochemical oxygen demand (BOD5). The level of this indicator values on the studied Lake was on level III class. In the remaining Lake oxygen concentration was similar (continued in I class). Fauna of the Resko Lake bottom during summer stagnation was poor in terms of quality, which proves its considerable biological degradation. In terms of the concentration in the test macrozoobenthos Lake dominated, and Oligochaeta, Diptera larvae.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 5; 86-96
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Evaluation of chemical and physico-chemical indicators of water of the Resko lake on the basis of the European Union Water Framework Directive
Autorzy:: Daniszewski, P.
Konieczny, R.
Powiązania:: https://bibliotekanauki.pl/articles/411595.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: water
lake
chemical and physico-chemical indicators
European Union Water Framework Directive
Opis:: The work shows the evaluation of physico-chemical parameters of water Resko lake, based on the European Union Water Framework Directive. Research was carried out in the years 2008-2009, in the period from April to October. With each of the three measuring stations on the tested water samples were taken two separate Lakes for chemical analysis. At the place of sampling were numbered pH. Trying to test water were taken by Polish Standards. Collected water samples were fixed in accordance with the recommendations in the Polish Standards. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of download attempts. Have studied lake close to neutral pH - 7.63 to 7.79. All lakes in accordance with the classification of the European Union Water Framework Directive have been included in the first class. Studies have shown a diverse water quality in lakes in relation to tested indicators. By analyzing the average annual values can be noted that the pH of the water, the O2diss and the concentration of NO3? showed a relatively small variation in all investigated Lakes. The level of the General Suspension in Resko lake the peasant was on level II class. The concentration in the surface layer of Ptot. Lake is little differentiated, is at level II quality class according to the classification of the European Union Water Framework Directive. The concentration of total phosphorus is 0,22-0,29 mg?dm-3.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 4; 98-104
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of chemical and physico-chemical indicators of water of the Starzyc lake on the basis of the European Union Water Framework Directive
Autorzy:: Daniszewski, P.
Konieczny, R.
Powiązania:: https://bibliotekanauki.pl/articles/411599.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: water
lake
chemical and physico-chemical indicators
European Union Water Framework Directive
Opis:: The work shows the evaluation of physico-chemical parameters of water Starzyc lake, based on the European Union Water Framework Directive. Research was carried out in the years 2008-2009, in the period from April to October. With each of the three measuring stations on the tested water samples were taken two separate Lakes for chemical analysis. At the place of sampling were numbered pH. Trying to test water were taken by Polish Standards. Collected water samples were fixed in accordance with the recommendations in the Polish Standards. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of download attempts. Have studied lake close to neutral pH 7.64 to 7.76. All lakes in accordance with the classification of the European Union Water Framework Directive have been included in the first class. Studies have shown a diverse water quality in lakes in relation to tested indicators. By analyzing the average annual values can be noted that the pH of the water, the O2diss and the concentration of NO3-showed a relatively small variation in all investigated Lakes. The level of the General Suspension in Starzyc lake the peasant was on level II class. The concentration in the surface layer of Ptot. Lake is little differentiated, is at level II and III quality class according to the classification of the European Union Water Framework Directive. The concentration of total phosphorus is 0,32-0,47 mgźdm–3.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 4; 91-97
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Varietal resistance of potatoes to late blight and chemical protection strategy
Autorzy:: Kapsa, J
Powiązania:: https://bibliotekanauki.pl/articles/66660.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Phytophthora infestans
late blight
genetic resistance
chemical protection
fungi
resistance
potato
chemical control
protection strategy
Opis:: The genetic resistance of potato varieties can be utilized to lower the fungicide rates used for plant protection against late blight. The very resistant varieties can be protected with half the rate of fungicide without negative effect on efficiency of the control.
Odporność genetyczna odmian ziemniaka może być wykorzystana do zmniejszania dawek fungicydów, stosowanych w ochronie plantacji ziemniaka przed zarazą. Odmiany bardzo odporne (Meduza) mogą pozostawać niechronione lub mogą być chronione fungicydami, stosowanymi w dawkach zmniejszonych o połowę (dla uniknięcia problemów ewentualnie zwiększonej presji infekcyjnej patogena w ciągu okresu wegetacji). Uzyskane wyniki wskazują, że odmiany podatne na zarazę (Karlena) wymagają ochrony prowadzonej w pełnych zalecanych dawkach fungicydów w każdym roku, niezależnie od presji infekcyjnej patogenu. Dla niektórych odmian, nawet o średniej odporności (Panda) wystarczające są dawki zmniejszone do 50-75% by skutecznie hamowały rozwój zarazy w niektóre lata. Różne odmiany mogą reagowa w różny sposób na zmniejszanie dawek fungicydów. W przeprowadzonych badaniach stwierdzono istotne współdziałanie odmian i dawek fungicydowych. Uwzględnienie genetycznej odporności odmian ziemniaka na zarazę pozwala obniża dawki stosowanych fungicydów, z zachowaniem zadawalającej skuteczności ochrony, co może by ważne ze względu na ochronę środowiska.
Źródło:: Journal of Plant Protection Research; 2002, 42, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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