bluuebunny/crossref_metadata_2025 huggingface dataset:
A simple rapid method for protein determination
Authors: Czapski Janusz
Published: August 2013

A simple, rapid method is described for determination of protein in the range of 20-200 µg. The procedure is based on the reaction between protein and amido black 10B. An insoluble residue is precipitated and the dye concentration in solution decreases. The difference between the optical density of the blank (without protein) and sample with protein is a linear function of protein content.
High-performance liquid chromatography for determination of α-tocopherol in vegetables
Authors: Horbowicz Marcin
Published: August 2013

A simple method for the determination of α-tocopherol in vegetables is described. The procedure consists of the following steps: saponification, extraction, silica-column clean-up, and high-performance liquid chromatography. Elution time for D, L-α-tocopherol was 9.0 min using a Zorbax Sil (250 x 4.6 mm) column and an isocratic mobile phase of hexane-methanol (99.3 + 0.7), with a flow rate of 1 ml/min, and detection at 292 nm using a variable UV detector. The average recovery of α-tocopherol was 91.2%, and the minimum detectable amount was 0.1 mg/100 g of fresh vegetable tissue. This method is comparable to gas-chromatographic determination of α-tocopherol, but has fewer analytical steps and gives more reproducible results.
Plant communities of stubble-fields in the Lublin Region, P. I. Plant communities of poor sites
Authors: Jędruszczak Maria , Pawłowski Franciszek , Wójcik Zdzisława
Published: August 2013

Floristic diversity is a specific characteristic of stubble-fields plant communities. They contain both the species which remained after harvesting cereal communities and the species developing root-plant communities. This diversity is favoured by the ecological conditions of stubble-fields (warmth, light, frequent rainfall but first of all lack of competition on the part of cultivated plants). The first part of the paper describes the plant communities of poor sites in the investigated region. It is based on 133 phytosociological records taken in August and September in 1975-1980 and on soil investigations. Three types of communities have been distingushed belonging to the Panico-Setarion association. They are: (1) Digitarietum ischaemi association, (2) Setaria glauca-Scleranthus annuus community and (3) Echinochloo-setarietum association. They all can be divided into smaller phytosociological units.
The effects of electromagnetic and electrostatic fields on the development and yield of greenhouse tomato plants
Authors: Wiewiórka Zofia
Published: August 2013

The effects of electromagnetic and electrostatic fields on tomato plants (in potted and hydroponic culture) were investigated. The broad-band, noisy character continuous spectrum electromagnetic field (with an intensity from 20 to 500 V/m, frequency from 1 Hz to 30 MHz) and electrostatic field (with an intensity of 2,2 to 46,5 kV/m) used in the experiments stimulated the tomato yield, height and biomass of plants. The differences in the character of the electromagnetic and electrostatic fields were reflected in the various optimal intensities for tomato yield. height and biomass of plants. Characteristic reactions of tomato plants to the electrostatic and electromagnetic fields were also found. The electromagnetic field had a greater effect on tomato yield in the case of plants cultivated in post in comparison with plants cultivated in hydroponic cultures. Electromagnetic and electrostatic fields with specific parameters may be used for growth stimulation of plants cultivated in greenhouse.
The effect of some frequencies of audible continuous sounds on the growth of seedlings of wheat (Triticum aestivum L.) cv. Urbanka
Authors: Weryszko-Chmielewska Elżbieta
Published: August 2013

The effect of eight frequencies of audible continuous sounds (100 Hz, 1000 Hz, 1500 Hz, 2000 Hz, 2500 Hz, 3000 Hz, 3500 Hz, 4000 Hz) on the growth of seedlings of spring wheat cv. Urbanka was investigated. Intensity of sounds was 90 dB. The experiment was carried out at 10°C and 15°C temperatures. Length of shoots and roots and their fresh and dry weights was measured. It was confirmed that the response of plants on sounds was dependent on their age and surroundings temperature. More strong positive reaction of shoots and roots step out at 10°C, particularly on lower frequencies: 100 Hz, 1000 Hz, 1500 Hz, 2000 Hz and 2500 Hz. At 15°C stimulated activity of sounds was stated only on weight of roots. It showed higher sound frequencies: 3000 Hz, 3500 Hz and 4000 Hz. At 4000 Hz the increase of roots length was also found. Some frequencies influenced in different way on shoots and roots of experimental plants, for example 4000 Hz at 15°C stimulated growth of roots and repressed growth of shoots. At 10°C by 4000 Hz the strongest inhibition of roots and shoots growth and decrease their fresh and dry weights was stated. The way of plants on definite sound frequencies may be the result of weaker or stronger resonans in cell structures of respective tissues in shoots and roots, different in their anatomy structure.
The role of ethylene and l-aminocyclopropane-l-carboxylic acid (ACC) in pollination and senescence of cut flowers of hippeastrum (Hippeastrum x hybridum hort.)
Authors: Mareczek Anna
Published: August 2013

Pollination of hippeastrum flowers did not affect the corolla life span. Only stigma and style from pollinated flowers wilted sooner than those from the unpollinated ones. Pollination or application of ACC to intact pistil accelerated synthesis of ethylene by the pistil only when stigma was mature. This was not observed when immature stigmas were treated. Various parts of the pistil showed different ability to synthesize ethylene after wounding. Production of this gas was the most intensive in the stigma, whereas decreased amounts of ethylene were emitted successively by the upper, middle and lower parts of the style. Increased amounts of ACC were found in pollinated or wounded pistils. Production of ACC was the highest in the stigma, and smaller in the style; amount of ACT decreased toward the basis of the style. The influence of ethylene and ACC on in vivo germination of pollen was also examined. Germintaion of pollen was accelerated by both ethylene and ACC.
Studies susceptibility of peas and field peas cultivars to Ascochyta pinodes (Jones)
Authors: Furgał-Węgrzycka Helena
Published: August 2013

The aim of the work was to find plants resistant to Ascochyta pinodes causing leaf and pod spot-pot of peas and field peas. Fourty five cultivars of peas and field peas and 6 breeding materials were tested in the field in the period 1975-1979 on artificially inoculated field plots. Cultivars: Bartel, Birte, Bodil, Borek, Jubilat, Karo, Meteor, Rondo and Żółty Pomorski were to found be less susceptible. In laboratory and greenhouse conditions pea and field pea cultivars were examined for susceptibility. to pathotypes 3 and 5 of Ascochyta pinodes. The results obtained proved that cultivars: Bartel, Birte, Bodil, Borek, Jubilat, Karo, Meteor, Rondo and Żółty Pomorski to be less susceptible to two pathotypes of Ascochyta pinodes.
The development of weeds sugar beet (Beta vulgaris L.) fields depending on the weeding method used
Authors: Jędruszczak Maria
Published: August 2013

The process of weed development in a sugar beet field was followed under the climatic conditions of mideastern Poland in 1977. The sugar beet was cultivated on loess soil and weeded using two methods: mechanical and chemical (Pyramin 5 kg/ha just after sowing). The results of the study revealed a specific developmental rythm of the particular weed species on each of the weeded objects. The lise of the herbicide delayed the germination of weeds and limited their repeatability, eliminated sonic species from the weed community as well as delaying the start of generative development of some weeds. It also decreased the participation of the fruit and seed shedding phase of the weeds before harvest of the cultivated crop.
Stubble-field plant communities in the Lublin region. P. IV. A comparison of the characteristic of stubble-field plant communities
Authors: Jędruszczk Maria
Published: August 2013

This part of a series of paper presents a comparative characterization of selected stubble-field plant communities described in parts I-III. It encompasses the most important characteristic of the communities as well as the habitas in which they occur. In the differentiated climatically, geomorphologically, hydrologically and, most of all, in respect to soil type conditions of mideastern Poland, more precisely in the old limits of the Lublin voivodship, 6 types of stubble-field plant communities have been described and further classified into subunits; all of which have been isolated on the basis of the floristic composition of 330 analysed phytosociologocal records. The selected stubble-field plant communities were assigned to the suborder Polygono-Chenopodietalia. Among them, 3 plant associations known from root crop fields were identified: 2 belonging to the alliance Panico-Setarion (Digitarietum ischaemi and Echinochloo-Setarietum) and 1 belonging to Eu-Polygono-Chenopodion (Oxalido-Chenopodietum polyspermi). On most of the grain stubble-field of the Lublin region (almost 77% of the records) communities were found which could be assigned only to the alliances: community Setaria glauca-Scleranthus annuus to Panico-Setarion, community Veronica persica-Sonchus asper to Eu-Polygono-Chenopodion and community Rorippa sylvestris-Oxalis stricta which is an intermediate from between these alliances. The floristic types identified here, as well as their lower rancs (subassocietions variants, subvariants) were a reflection of the mechanical composition, nutritional, hydrological and pH conditions of the soils in their habitas and confirmed the high differentiation of soil conditions over the studied area.
Mycoflora of Viola wittrockiana Games seeds
Authors: Pięta Danuta , Kiecana Irena
Published: August 2013

Thirty seed speciments of Viola wittrockiana harvested in the years 1985-1987 were investigated. As a result of mycological analysis, 1808 fungi isolates belonging to 19 species were obtained. Most frequently isolated species was Alternaria alternata whose isolates made 26 % of isolations of all the fungi. Among the fungi isolated particularly from undisinfected seeds the species from the Penicillium kind were dominant. Pathogenic fungi like Botrytis cinerea and Fusarium culmorum were also isolated from the investigated seeds.
Mycoflora of Calendula officinalis L. seeds
Authors: Pięta Danuta
Published: August 2013

The seeds of Calendula offlcinalis harvested in the years 1985-1987 were investigated. Agar medium with nitrients was used to isolate the fungi. As a result of the mycological analysis, 3642 isolates belonglng to 23 species and dark unsporulating mycelium were obtained. Alternaria alternata dominated among the isolated fungi. Moreover, Botrytis cinerea, Fusarium culmorum, Fusarium avenaceum and Sclerotinia sc1erotiorum were obtained from the seeds.
Changes in chemical composition of potato tubers caused by dry rot (Fusarium solani (Mart.) Sacc. var. coeruleum (Sacc.) Booth, Fusarium sulphureum Schlecht.)
Authors: Przeździecki Zdzisław , Murawa Danuta
Published: August 2013

Investigations on effect of dry root (F. solani var. coeruleum and F. sulphureum) pathogens on three potato cultivares Azalia, Pola, Odra chemical composition were carried out. Content of total nitrogen and protein, total saccharides, reducting and bisaccharides and vit. C was investigated. Significant decrease of total and protein nitrogen content in potatoes affected by Fusarium in relation to intact tubers was found. Moreover increase of reducting saccharides and bisaccharides in potatoes infected by Fusarium compared with controls was observed. Level of vit. C was decreased in tubers affected by Fusarium in all potato cultivars. In this experiment changes in chemical composition content in potato tubers were connected with a kind of dry rot patogen.
Changes in endogenous gibberellin-like substances in onion bulbs (Allium cepa L.) cv. Sochaczewska during storage
Authors: Kielak Elżbieta , Bielińska-Czarnecka Maria
Published: August 2013

Onions cv. Sochaczewska were dried up under an umbrella roof till October 15th or till November 15th and thereafter stored in a cold room at 0-1°C until May 15th. During 4-year of experiment gibberellin activity was determined each month during storage. Three periods of high activity of gibberellins were found in most cases: in December, in February-March and in late spring. In general, onions dried longer (till November 15th), showed lower gibberellin activity than onions dried shorter. Gibberellin-like substances under investigation are localized in almost all Rf zones of chromatogram. Sprouting and rooting was related to gibberellin activity.
Attempts at propagation of the Sea Onion (Urginea maritima (L.) Baker) under greenhouse conditions
Authors: Binek Eleonora
Published: August 2013

Propagation of Urginea maritima by seeds and bulb cuttings was carried out under greenhouse conditions. This Mediterranean species contains proscyllaridin A used for therapy. The plants after two years of propagation from 2-scale bulb cuttings had bulblet diameters (2.7 cm) and mass of bulblets with roots (22.3 g) about 3 and 9 times larger, respectively, in comparision with the plants reproduced from seeds. The possibility of Urginea maritima production under greenhouse conditions in our country is rather limited as this species has a slow growth and its intensive vegetation falls on the autumn-winter season.
The stubble-field plant communities on lowland complexes in South-Eastern Poland. P. I. Plant communities of the Panico-Setarion alliance
Authors: Pawłowski Franciszek , Trąba Czesława , Wójcik Zdzisława
Published: August 2013

Floristic diversity is characteristic for stubble-field plant communities. Those communities consist of both the species remaining after harvesting of grain and of the species developing in rootplant communities. The first part of this paper describes the plant communities of poor sites in the investigated region. It is based on 90 phytosociological records taken in August and September of 1972-1975 and on soil investigations. The Panico-Setarion alliance was made up of: 1) the Digitarietum ischaemi association, 2) the Setaria glauca community and 3) the Ecbinochloo-Setarietum association, the Setaria glauca community was divided into smaller phytosociological units.
The stubble-field plant communities on lowland complexes in South-Eastern Poland. P. II. Plant communities of the Eu-Polygono-Chenopodion alliance
Authors: Trąba Czesława , Wójcik Zdzisława
Published: August 2013

Part I deals with the Panico-Setarion stubble plant communities. Part II describes the Eu-Polygono-Chenopodion plant communities. Part II is based on 89 photosociological records. The Eu-Polygono-Chenopodion plant communities develope on soil rich in nutrients (brown soil developed from silts loess and clay; alluvial soils developed from silts and loams; chernozem and black soils), belongs to wheat complexes. Two plant communities are distinguished: 1) Oxalis stricta-Euphorbia esula community; 2) Veronica persica community divided into four variants. The floristic diversity of these plant communities reflects the ecological conditions of the examined region.
The stubble-field plant communities in South-Eastern Poland. P. III. Plant communities of mountain agricultural utility complexes
Authors: Trąba Czesława
Published: August 2013

In the Part I and II the stubble-field plant communities of lowlands agricultural utility complexes in South-Eastern Poland were introduced. The Part III contains a description of such communities occurring in mountain complexes. In the years 1972-1975, since August till September, 95 phytosociological records were taken on the area elevated from 300 to 650 m over the sea level, embracing the Carpathian Foreland and the Low Carpathian region. The research was conducted upon the typical, acid and leached brown soils, as well as on clay, dusty clay and silt alluvial soils belonging to three mountain complexes: wheat, cereal and oat-potatoes. The following communities were specified:
I. Setaria glauca community, divided into two variants: 1) typical; 2) with Aphanes arvensis;
II. Veronica persica community, divided into four variants: 1) with Aphanes arvensis, 2) typical, 3) with Geranium dissectum, 4) with Aethusa cynapium.
The variant with Geranium dissectum, belonging to the community with Veronica persica, was considered as having the most mountain character.
Flowering and pollen value of selected species of umbelliferous family - Umbelliferae Juss. (Apiaceae Lindl.) in Lublin region. Part 1. Biology and abundance of flowering
Authors: Wróblewska Anna
Published: August 2013

Investigations of the biology of flowering and pollen value of seven species of Umbelliferae family were carried out in natural seats of Lublin region in 1978-1980. Aegopodium podagraria L.,Angelica silvestris L., Anthriscus silvestris L. (Hoffm.), Chaerophyllum aromaticum L., Eryngium planum L., Herac1eum sibiricum L., Pastinaca sativa L. were examined. This paper shows results of studies of the biology of flowering and abundance of flowering. The examined species started their flowering in the following chronological order: Anthriscus silvestris, Aegopodium podagraria, Pastinaca sativa, Chaerophyllum aromaticum, Heracleum sibiricum, Eryngium planum, Angelica silvestris. The period of time of flowering lasts 3-5 weeks. Both bisexual and male flowers were found in the inflorescences. The number of flowers produced by a single plant were as follows: Pastinaca sativa 5390-6354, Angelica silvestris 3408-4944, Chaerophyllum aromaticum 3972-4532, Anthriscus silvestris 3438-4374, Aegopodium podagraria 1915-2033, Heracleum sibiricum 1626-1908, Eryngium planum 1185-1420.
Studies on the susceptibility of peas and field peas cultivars to Ascochyta pisi (Lib.)
Authors: Furgał-Węgrzycka Helena
Published: August 2013

The aim of the work was to find the plants resistant to Ascochyta pisi causing leaf and spot-pot of peas and field peas. Fourty five cultivars of peas and field peas and 6 breeding materials were tested in field in the period 1975-1978. Cultivars: Bartel, Birte, Borek, Cebeco, Finale and Paloma were to be less susceptible. In laboratory and greenhouse conditions peas and field peas cultivares were examined for susceptible to pathotypes 2 and 4 of Ascochyta pisi. The results obtained proved that cultivars: Borel, cebeco, Finale and Paloma were to be less susceptible to two pathotypes of Ascochyta pisi.
The stability of electron- and immunoelectron microscopic plant virus preparations negatively stained with uranyl acetate and practical aspects of using this stain
Authors: Szyndel Marek S.
Published: August 2013

The electron microscopic preparations of tobamo-, potex-, carla-, poty-, clostero-, como-, cucumo-, ilar-, luteo- and cryptoviruses were completed in 1983-87 and stored at room temp. Grids were prepared by immunoelectron microscopic (clumping, ISEM, decoration) techniques and by leaf-dip modified method. All preparations were contrasted with 2 % aqueous uranyl acetate (UA), pH 4,2. Reexaminated grids were still of good quality. UA gives high contrast, high resolution and good preservation of the virus particles and a clear image of serological reactions. The advantages and disadvantages of UA and some practical aspects of using this stain are discussed.
Changes of Some Phisiological Processes and Yield of Winter Wheat and Triticale Under the Influence of Sprinkling Irrigation and Nitrogen Fettilizastion. Part 1. Chlorophyll and Carotenoid Content in Some Organs of Winter Wheat and Triticale
Authors: Kaczmarczyk Stanisław , Koszański Zdzisław , Podsiadło Cezary
Published: August 2013

The aim of the field and laboratory study was to determine effects of nitrogen fertilization and sprinkling irrigation on chlorophyll and carotenoid content in the flag leaf, shank and spike of winter wheat and triticale cultivated on a sandy soil. Obtained results show that the applied treatments (nitrogen and sprinkling irrigation) significantly increased the yield of dry matter of the tested organs, and their chlorophyll and carotenoid content. Compared to winter wheat a higher concentration of the pigments was found in triticale. Sprinkling irrigation in high nitrogen fertilization inhibited the process of pigment decomposition of and hence the time of photosynthetic activity of the tested plants was extend.
Flowering and pollen value of selected species of umbelliferous family - Umbelliferae Juss. (Apiaceae Lindl.) in Lublin region. Part II. Pollen efficiency and insect visit
Authors: Wróblewska Anna
Published: August 2013

This paper is a second part of publication concerning the flowering and pollen value of some species of the Umbelliferae family. They were: Aegopodium podagraria L., Angelica silvestris L..Anthriscus silvestris L. (Hoffm), Chaerophyllum aromaticum L., Eryngium planum L., Heracleum sibiricum L., Pastinaca sativa L. The aim of a present paper was to estimate a pollen efficiency and insect visit of examined species.
The mean pollen mass produced by 100 flowers differed among species and their successive rows. The highest mean mass of pollen was obtained from 100 flowers of Heracleum sibiricum, the lowest from Chaerophyllum aromaticum, respectively. Mean pollen efficiency per one plant was highest for Pastinaca sativa (215.3-333.2 mg), the lowest for Aegopodium podagraria (55.7-80.9 mg). The best pollen producers per one plant and 1 m2 were: Pastinaca sativa, Heracleum sibiricum and Angelica silvestris.
Differentiation of pollen grains measurements was found between successive rows of the examined species. The lowest dispersion of pollen grains measurements was recorded for Chaerophyllum aromaticum and Anthriscus silvestris, while the highest for Heracleum sibiricum. Under good weather conditions all examined species were visited by various insects, they collected both nectar and pollen. The most intensive visitation was noticed on 1 m2 of Eryngium planum, the lowest on Anthriscus silvestris and Chaerophyllum aromaticum.
Screening of Tomato Cultivars for Resistance to Pulsarium Wilt in Eastern States of Nigeria
Authors: Nwaiwu M. Y. , Arinze A. E.
Published: August 2013

The causual organism of the out-break of wilt disease of tomato in the Imo and Rivers States of Nigeria was identified as Fusarium pallindoroseum (Berk and Rav) Booth and Sutton, and its pathogenicity was established. Experiments were designed to screen five tomato cultivars for resistance to F. pallidoroseum. Four methods were employed in the screening experiments. The results of all the methods used showed the cultivar IFe-l as the most susceptible (65 %) while the Chef Cultivar was the most resistant with less than 10 % of the test plants wilting.
Anatomical and morphological copper provision indexes in wheat (Triticum aestivum L.)
Authors: Weryszko-Chmielewska Elżbieta
Published: August 2013

The morphology and anatomy of wheat (Triticum aestivum L.) stems under conditions of copper deficiency were investigated. Copper was supplied at 0, 5 and 125 mg per Mitscherlich pot. The lignification of tissues in plants from field experiments (0; 5; 10; 20 mg Cu/ha) was also studied. Significant changes in stem and leaf morphology and anatomy were found along inhibition of inflorescence and flower development. The anthers produces sterile and deformed pollen grains. The diminished stability of stems was caused by the following anatomical changes: considerable reduction of steam diameter and culm wall thickness and decreased numbers and dimensions of sclerenchyma and parenchyma cells and layers. In addition, the size of vascular bundles and the diameter of xylem vessels were decreased and the sclerenchyma sheath around the vascular bundles was reduced. The epidermis and sclerenchyma cells had thinner walls. The absence of lignification of cells walls was observed most frequently in the peripheral tissues (epidermis, sclerenchyma and parenchyma). It was demonstrated that it was possible to histochemically determine the degree of stem lignification in the early phases of wheat development.
Changes of weed infestation in winter wheat field under the influence of nitrogen fertilizing intensification
Authors: Szymona Jerzy
Published: August 2013

In a strict field experiment we have studied the influence of various doses of nitrogen fertilization (0, 100, 175 kg N per ha) on the species composition and the number on weeds occurring in a field of winter wheat, cultivated on humus fertile soil. The optimum nitrogen dose for wheat (100 kg N per ha) did not cause vast differences in the weed community, in comparison with a control (without fertilization with N). However, its enlargement to 175 kg N per ha limited the number of species witch invested wheat with weeds, causing at the same time the compensation of nitrophilus species.
The physiology of extremely desiccated Brassica juncea (L) seeds
Authors: Khattra Savita , Sharma Kiranjyoti , Singh Gurmit
Published: August 2013

Seeds of four raya cvs., viz. RL 1359, RLM 198, RLM 619 and RLM 514 were desiccated for 2, 7, 15 and 45 days wchich led to different levels of seed moisture. Data on germination capacity speed of germination, seedling dry weight, electrical conductance, dehydrogenase activity and seed storage behaviour for up to two years after desiccation were recorded. Based on this data, cvs. RL 1359 and RLM 514 were found to be tolerant to desiccation 10 as low as 0.73 and 1.16 per cent seed moisture levels, respectively. Seeds of RLM 198 tolerated desiccation up to 2.28 per cent seed moisture. However, RLM 619 seeds showed desiccation injuries in seedling dry weight, electrical conductance and speed of germination at moisture levels below 5.67 per cent.
Changes of weed communities of root crop cultures in the region of Sieradz and Zduńska Wola during the last 16 years
Authors: Warcholińska A. Urszula
Published: August 2013

This article presents the results of research on segetal vegetation of root crop cultivations of the area around Sieradz and Zduńska Wola, carried out in the years 1977 and 1992 (Figure 1). On the basis of 120 phytosociological records, taken in 1977, 6 associations were distinguished (Tables 1-8): Digitarietum ischaemi, Bilderdykio-Lamietum amplexicaule, Galinsogo-Setarietum, Echino-chloo-Setarietum, Veronico-Setarietum pumilae, Lamio-Veronicetum politae.
According to the repeated listing, conducted in 1992, changes of the above - mentioned associations were stated. The comparison between the present state of the associations of root crop weeds on the area researched and their state of 16 years ago showed their impoverishment (compare Tables 1-9, Figures 2-9).
Variability and corelations of some features of the population of Poa pratensis L. ecotypes
Authors: Sawicki Bogusław
Published: August 2013

The collection consisted of 20 selected ecotypes of Poa pratensis L. which were compared with Skrzeszowicka variety. In respect of the studied features a few ecotypes appeared to be predominant over the standard variety, although this predominance was not statistically proved. It was found that weakly yielding varieties formed few above-ground shoots of a low height. Their leaves were short but the leaf width did not differ from that of good-yielding forms. From among the collected ecotypes only one, yielding on the level of a standard variety, belonged to early forms. The yield of green mass correlated best with the number of vegetative and generative shoots as well as with the length of flag leaf.
Changes of segetal vegetation of the Piotrków Plain during the last 22 years. Part II. Communities of weeds of flax and root crop cultures
Authors: Warcholińska A. Urszula
Published: August 2013

This paper presents the results of research on changes in segetal communities of flax and root crop cultures of the Piotrków Plain (see W a r c h o l i ń s k a, 1994 - Figure 1) which took place during the period between 1971 and 1972 and between 1992 and 1993. On the basis of 72 phytosociological records, taken in 50 localities (Figures 1, 2) in the years of 1971 and 1972, 5 associations were distinguished: one in the flax culture (Table I) - Spergulo-Lolietum remoti and four in the root crop cultures (Tables II-V) - Digitarietum ischaemi, Echinochloo-Setarietum, Galinsogo-Setarietum and Lamio-Veronicetum politae. According to the repeated listing carried out in the years of 1992 and 1993 the changes in the communities of the above - mentioned items were stated. The comparison of the present state of these communities with their state of 22 years ago allowed to note that the changes of the analyzed agrophytocoenoses of flax and root crop cultures are caused by progressive anthropopressure.
The elimination of viruses from garlic (Allium sativum L.) plants by thermotherapy and meristem tip culture
Authors: Szyndel Marek S. , Kozera Bożena , Misterek Ewa
Published: August 2013

The production of virus free garlic plants from totally cvs Jana, Mera and ecotype Zamojski was attempted by means of thermotherapy and meristem tip culture. The cloves and the aerial bulbils after hot air treatment in a growth chamber at 36ºC for 30-35 days or at 26-28ºC for 3-4 months in greenhouse were used to meristem tip culture on M. S. medium. In the 26-28ºC treatment 19.5 % of meristerns produced plants and 22.5 % of these were virus free. In the 36ºC treatment 14.5 % of the meristems developed into plantlets and 34.6 % of them were virus free. The plantlets were indexed by "sap-dip" electron microscopy methods.
The floristic changes on excluded from agricultural production field after single Roundup spraying
Authors: Jabłoński Wojciech , Widera Maria
Published: August 2013

The purpose of experiment conducting on the field, weedy by Agropyron repens (L.) P. B. was established what is the degree of elimination of Agropyron repens plants from experimental plots by single Roundup spraying. The changes of the species composition on the fields with different clover-grass mixtures or with Phacelia tanacaetifolia Benth. were studied as well. The stand tables have been made in the first year of the conducting experiment, to determination the density of weeds, after different agricultural practices. It has been found the great elimination of Agropyron repens (L.) P. B. plants after Roundup spraying and the great density of Echinochloa crus-galli (L.) P. B. plants. It has been found the great density of Chenopodium album L. at VII treatment and Galinsoga parviflora Cav. at III, V, VII and VIII treatments as well (Table I).
Anatomical features of leaves of three cultivars of winter wheat (Triticum aestivum L.) and settling the plants by cereal leaf beetles, Oulema spp. (Coleoptera, Chrysomelidae)
Authors: Weryszko-Chmielewska Elżbieta , Soczyński Grzegorz
Published: August 2013

Investigations of flag leaves anatomy of three winter wheat cultivars: Almari, Gama and Weneda were carried out as it was state that there are great differences in the intensity of cereal leaf beetle feeding on the leaves. In order to determine the features conditioning the differentiated resistance of these cultivars following parameters were measured: the thickness of leaf blade, the length of trichomes and their density in the adaxial epidermis, the number of silicon cells in 1 mm2 epidermis and the thickness of the external cell walls of epidermis. The observations of cross section of the leaves were made in a light microscope and that of surface of the adaxial epidermis in a scanning electron microscope. In this study it was shown that Gama cv. distinguishes of the shortest trichomes with poor density, the lowest number of the silicon cells in 1 mm2 and epidermis cells with the thinest walls. This features indicate a poor resistance of Gama cv. against feeding of the pests and give reasons for the presence a much higher number of the cereal leaf beetle larvae (about 100%) than at the extant two cultivars. Dependence between the thickness of leaf blades and the number of larvae of the infesting pests has not been stated.
Some biochemical reactions of strawberry plants to infection with Botrytis cinerea and salicylic acid treatment
Authors: Małolepsza Urszula , Urbanek Henryk , Polit Justyna
Published: August 2013

The reactions of strawberry plants to infection with B. cinerea and treatment with salicylic acid has been studied. Infection of leaves with B. cinerea resulted in early increases in active oxygen species generation, superoxide dismutase and peroxidase activities and phenolic compounds content. Some increases of the above reactions were noticed in plants treated with salicylic acid but not in the plants treated with SA and then later infected with B. cinerea.
Modelling and Control of Inverse Dynamics for a 5-DOF Parallel Kinematic Polishing Machine
Authors: Lin Weiyang , Li Bing , Yang Xiaojun , Zhang Dan
Published: August 2013

Currently, about 60% of the finishing works for freeform parts are done manually, in this paper a parallel kinematic polishing machine (PKPM) with five degrees of freedom (DOFs) and with structural configurations of the type T3R2 (three translations and two rotations) is presented. The PKPM is a variation of the existing METROM Pentapod. The PKPM has a large yaw angle space and, with the aid of an NC rotation table, it can access any given point of the freeform part. A kinematic analysis is developed, an inverse dynamic model based on Kane's equation and the affine projection method is set up in detail, and a real-time and highly efficient inverse dynamic algorithm is developed; the simulation results show that the presented PKPM could achieve an acceleration which is twice that of gravity. A mixed ℋ2/ ℋ ∞ control method is presented and investigated in order to track the error control of the inverse dynamic model; the simulation results from different conditions show that the mixed ℋ2/ ℋ ∞ control method could achieve an optimal and robust control performance. This work shows that the presented PKPM has a higher dynamic performance than conventional machine tools.
Competiveness and Innovation in High-tech Companies: An Application to the Italian Biotech and Aerospace Industries
Authors: Calabrese Armando , Campisi Domenico , Capece Guendalina , Costa Roberta , Di Pillo Francesca
Published: August 2013

Innovation activities are a critical factor in national and regional development. The innovative behaviour of companies is one of the main sources of competitiveness, business survival, economic growth and employment in a territory. It is therefore important to identify and understand the factors that determine innovation behaviour among enterprises. In line with this, the aim of this study is to analyse the relations between innovation-related variables and the impact that they have on company performance. The research model proposed is applied to two high-tech sectors of the Italian region of Lazio to verify its validity. The examination concerns the aerospace and biotech sectors, which are characterized by strong innovative activity.
Photoluminescence Studies of Li-Doped Si Nanocrystals
Authors: Klimešová Eva , Vacík Jiří , Hol Václav , Pelant Ivan
Published: August 2013

We investigate the optical properties of Li-doped Si nanocrystals (both freestanding and matrix-embedded), which are potentially an important material for the new generation of lithium-ion batteries. Our samples contain 10 – 100 Li atoms per one Si nanocrystal and their lattice is slightly expanded. The photoluminescence (PL) spectra of the S-band of Li-doped Si nanocrystals are blue-shifted by ∼30nm compared to the undoped Si nanocrystals and their PL lifetime is correspondingly shorter. The F-band emission is almost unaffected by Li doping. The observed changes in the PL performance are probably caused by Si lattice expansion induced by Li insertion. The reported spectral blue shift is favourable for certain photonic applications.
Low Pressure Plasma Study for Platinum Nanoparticles Synthesis
Authors: Moreira Adir José , Ordonez Nelson , Mansano Ronaldo Domingues
Published: August 2013

The main purpose of this work was to show that by using low-pressure plasma it is possible to obtain platinum nanoparticles with uniform size and shape and then apply these nanoparticles in order to evaluate the process efficiency. For this a platinum coil wire was placed in an aluminium mould at approximately 10mm from an electrode. The aluminium mould was made with an aperture immediately under the platinum coil. This way the particles released by the plasma action were directed towards the polymeric membrane. Chemical activity tests were performed in commercially produced cells in order to compare the efficiency of these and those produced by plasma. The results showed a voltage of 1.0V for the commercially produced membrane and 950mV for the membrane processed by plasma. The chemical activity test showed low efficiency for the cell produced by plasma when compared to the commercial cell; however it is worth noting that the amount of carbon support is far smaller than in the commercial cell, which means that if the support is increased, the efficiency can also be increased.
Qualidade de polpas de frutas congeladas comercializadas em Campos dos Goytacazes – RJ
Authors: Oliveira Eliana da Silva , Barbosa João Batista , Talma Simone Vilela , Pereira Sílvia Menezes de Faria
Published: August 2013

Este trabalho teve como objetivo realizar um estudo sobre as características físico-químicas e a rotulagem de diferentes polpas de frutas congeladas comercializadas em Campos dos Goytacazes–RJ e verificar sua conformidade com a legislação vigente. Foi feita uma pesquisa descritiva de campo por meio da qual foram analisados parâmetros físico-químicos de polpas de frutas de diferentes sabores, comercializadas na cidade de Campos dos Goytacazes–RJ. Os resultados obtidos permitem concluir que todas as amostras de polpas analisadas estão com teores de vitamina C abaixo dos valores permitidos pela legislação, e que a polpa de goiaba e a de limão apresentaram valores de acidez abaixo dos padrões estabelecidos. Com relação aos rótulos analisados das embalagens das polpas de frutas, resta somente a adequação da embalagem ao número do lote.
Sobre o Conceito de História em Walter Benjamin
Authors: Soares Renata Ribeiro Gomes de Queiroz
Published: August 2013

Este trabalho tem por objetivo, primeiramente, apresentar considerações gerais sobre o texto, de Walter Benjamin, "Sobre o conceito de história". A seguir, buscaremos refletir sobre a importância da memória na filosofia histórica do autor.
Avaliação do módulo de elasticidade longitudinal em peças estruturais de Pinus Caribaea
Authors: Christoforo André Luis , Cota Fábio de Paiva , Panzera Túlio Hallak , Franco Claudenir Facincani , Barreto Vitor Correa de Mattos
Published: August 2013

Atualmente, a norma técnica NBR 7190/1997 (Projeto de Estruturas de Madeira) não faz referência a ensaios que visem à determinação das propriedades de rigidez e resistência em peças de dimensões estruturais de madeira serrada, restringindo-se esta análise a corpos-de-prova de pequenas dimensões e isentos de defeitos. O presente trabalho tem como objetivo, apresentar uma metodologia alternativa de cálculo para a determinação do módulo de elasticidade longitudinal em peças estruturais de madeira serrada, baseada no Método dos Elementos Finitos, juntamente com uma técnica de otimização. Os resultados encontrados para as madeiras Pinus caribaea mostram que a metodologia proposta pela norma brasileira pode também ser empregada em peças de dimensões estruturais maiores.
O movimento político de Campos em 1855
Authors: Soffiati Arthur
Published: August 2013

Em 1855, eclodiu um movimento político na cidade de Campos com o objetivo de criar uma nova província no Império Brasileiro. Ela iria se chamar Província de Campos dos Goytacazes, com sede na cidade de mesmo nome. Seu território abrangeria as atuais regiões norte-noroeste fluminense, alguns municípios da Zona da Mata e o Sul do Espírito Santo. O projeto partiu da economia canavieira, que então vivia um momento de apogeu. O sul do Espírito Santo aderiu ao movimento, mas ele foi abortado na Câmara e no Senado da Corte. Contudo, o mito da região e de Campos como capital da Província e depois do Estado do Estado do Rio de Janeiro perdurou até o início do terceiro milênio.
Mercado de trabalho formal no norte do Rio de Janeiro: impacto da implantação do Complexo Portuário do Açu
Authors: Terra Denise Cunha Tavares , Oliveira Elzira Lúcia de , Givisiez Gustavo Henrique Naves
Published: August 2013

O objetivo deste artigo é analisar o comportamento do mercado de trabalho formal em São João da Barra e nos principais municípios da região norte fluminense, por meio dos dados da Relação Anual de Informações Sociais (RAIS) e do Cadastro Geral de Empregados e Demitidos (CAGEd). Pode-se afirmar que a construção do Complexo Portuário do Açu, a partir de 2007, amplia significativamente o emprego formal na construção civil em São João da Barra.
Comunidades quilombolas, reconhecimento e proteção social
Authors: Jorge Amanda Lacerda , Brandão André
Published: August 2013

Este artigo discute a inserção das comunidades remanescentes de quilombos no formato da proteção social que emerge da Constituição de 1988. Tal formato caracteriza-se por um escopo mais amplo de cobertura ao se desvincular, parcialmente, do modelo contributivo vigente desde 1930. De forma específica discutimos o caso da comunidade da Lapinha situada no Norte de Minas Gerais. Apoiados na chamada "Teoria do Reconhecimento", concluímos o artigo apontando que o reconhecimento dos remanescentes de quilombos pressupõe, em primeiro lugar, que estes estabeleçam pontes semânticas capazes de levá-los a identificar situações comuns de privação e derivem daí agenciamentos que garantam a continuidade de suas lutas. Por outro lado, é importante analisar criticamente os processos, a partir dos quais as agências públicas conseguem garantir espaços de paridade participativa, capazes de gerar reconhecimento no campo da justiça que, para além de valorações culturais positivas, possa viabilizar perspectivas de redistribuição econômica.
Do ponto de vista de quem? Uma crítica à busca pelo consenso
Authors: Aliprandi Danielly Cozer
Published: August 2013

Discute-se aqui a busca pelo consenso diante das divergências existentes no processo participativo. Consenso envolve conciliar opiniões de diversos atores: cidadão, administração pública e especialistas. No mesmo grupo de cidadãos, a divergência de opiniões é grande. Buscou-se analisar o tema dentro dos conceitos de democracia e política, chegando-se ao termo dissenso, para o qual diferenças e conflitos são a base da prática democrática. Conflito é exatamente aquilo que o capitalismo tenta destruir. Identificou-se a existência, no processo de decisão, de aspectos indiscutíveis e flexíveis que permitem participação cidadã, e a necessidade de capacitação do cidadão para desenvolver autonomia, sendo capaz de participar das decisões.
Sobre a Cooperação Internacional e o Instituto Federal de Educação, Ciência e Tecnologia Fluminense
Authors: Kury Maria Inês Albernaz
Published: August 2013

Este artigo visa a fazer uma reflexão acerca da necessidade da Internacionalização de nossa Instituição, e nossa própria, bem como uma abordagem do tema Cooperação Internacional e sua significação, diante do cenário atual. Trata-se de uma compilação de alguns documentos e leituras relacionadas aos temas em questão.
Um olhar particular sobre a Arte e a Cultura no IF Fluminense
Authors: Soares Kátia Macabu de Sousa
Published: August 2013

Este relato de experiências tem o intuito de registrar e analisar trabalhos vinculados à Arte e Cultura realizados no Instituto Federal Fluminense (IFF), no período de 2008 a 2011, para que possa ser verificada a presença dessa área do conhecimento após a transformação do CEFET Campos para o IFF. O envolvimento de estudantes, professores e técnicos administrativos do próprio Instituto, e de diretores, professores e alunos de escolas estaduais fizeram, desses trabalhos, espaços de ampliação de conhecimento artístico e cultural. Com eles, tive a oportunidade de compartilhar saberes e fazeres com todos os envolvidos, de intercambiar conhecimentos na área de gestão e produção cultural e de reconhecer na prática docente e no histórico profissional, o caminho para evidenciar a importância fundante da Arte e da Cultura no ambiente escolar como área de conhecimento e não, simplesmente, como instrumento de educação ou apêndice dentre as atividades desenvolvidas na escola.
Modelo de agente racional para auxiliar na gestão de serviços em redes de computadores
Authors: Justo José Elias da Silva , Tamariz Annabell Del Real
Published: August 2013

A globalização aumentou consideravelmente o volume de dados a serem processados, surgindo a necessidade de interligar computadores em redes. Administrar redes de computadores não é uma tarefa trivial. Agentes inteligentes podem auxiliar na gestão de redes de computadores. O objetivo deste trabalho é desenvolver um protótipo baseado em um agente de software, que monitore, gerencie serviços prestados em redes de computadores e intervenha reativamente, reiniciando quaisquer dos serviços com problemas. O agente analisa sua base de conhecimento periodicamente para verificar serviços que foram reiniciados e as possíveis causas dessa ação. O agente mostrou-se eficaz, manteve os serviços em funcionamento e gerou relatórios.
Avaliação das condições socioeconômicas e de saúde dos trabalhadores da pesca, participantes do Programa CERTIFIC/PESCA, regional Campos dos Goytacazes, RJ
Authors: Oliveira Vicente de Paulo Santos de , Mansur Odila Maria Ferreira de Carvalho , Mansur Laura Carvalho , Ribeiro Mariana Barbosa Tâmega , Silveira Monique do Vale da , Souto Filho João Tadeu Damian
Published: August 2013

O Instituto Federal Fluminense e a Faculdade de Medicina de Campos atentos às condições socioeconômicas e de saúde dos trabalhadores da pesca, realizaram um estudo observacional, transversal, nas comunidades pesqueiras de Campos dos Goytacazes - Ponta Grossa dos Fidalgos e Lagoa de Cima. Avaliaram-se as condições sócio-econômicas e de saúde de 56 trabalhadores da pesca participantes do Programa CERTIFIC/PESCA, regional Campos dos Goytacazes. Foi identificada, por meio de entrevista e aplicação de formulário individual, a presença de doenças crônicas não transmissíveis e/ou seus fatores de risco associados ao desconhecimento das estratégias de prevenção em saúde, como exames preventivos, uso de filtro solar e vacinação.
Análise do efeito da geometria dos poros nas propriedades físicas da rocha
Authors: Roque Luiz Alberto Oliveira Lima , Missagia Roseane Marchezi
Published: August 2013

Um dos principais fatores que influenciam o fluxo dos fluidos do reservatório sobre pressão é a geometria dos poros. Poros com formatos mais estreitos serão mais facilmente compactados quando submetidos à pressão de soterramento. A pressão efetiva modifica a geometria dos poros abrindo ou fechando microfraturas, que resulta, por sua vez, em aumento ou redução dos módulos elásticos, da porosidade, da permeabilidade, entre outros parâmetros. As propriedades físicas da rocha dependem da dimensão e do formato dos poros. Dessa forma, torna-se necessário estudar e aprimorar modelos matemáticos do meio, que levem em conta o fator de formato dos poros, para estimar as propriedades elásticas da rocha, visando analisar as variações do comportamento de propriedades físicas de acordo com a geometria dos poros. O modelo de meio efetivo diferencial (DEM), a teoria de Hertz-Mindlin e a aproximação potencial coerente (CPA) constituem alguns dos paradigmas teóricos que levam em conta o impacto da geometria dos poros na estimativa dos módulos elásticos. Tendo em vista a importância do efeito da estrutura dos poros no comportamento dos parâmetros físicos, este artigo propõe uma análise de alguns modelos matemáticos que contemplem a influência do formato dos poros na estimativa de propriedades físicas da rocha.