Search

Whilst forest management certification emerged in the early 1990s as a potential market-based solution to the problem of forest loss and degradation, certified timber has not yet taken a significant share of timber and wood product markets. Although the lack of supply of certified timber is acknowledged as a problem, market barriers to the uptake of certified products are poorly understood. This study sought to identify and compare barriers to the uptake of certified wood and wood products in the UK's paper and construction industries. Findings indicate marked variation in barriers between individual companies and between the industries. Key barriers identified include: organizational constraints – strategic commitment, inadequate systems, staff skills and financial provision; supply constraints – material availability, supply chain complexities, entrenched supplier relationships; and demand constraints – lack of knowledge, weak demand, price sensitivity, traditional expectations and availability of substitutes. Ways to overcome these barriers are discussed. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment. [ABSTRACT FROM AUTHOR]

The article reflects on the issue on plant science in Korea. It reveals that the theory on country's scientific focus was not transparent to the people involved in the research. It presents an analysis with the participation of top ten countries including Northern America, Europe, Japan, and Australia. It succumbs that the countries in Asia are smaller than those mentioned above with respect to research publication other than Japan. It explains that Korea and China have increased the number of papers being published annually which out put is equaled with Brazil.

Copyright of Canadian Journal of Chemical Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: We studied the type and frequency of differences between data presented in conference abstracts and subsequent published papers in the fields of infectious diseases and microbiology. Methods: We reviewed all abstracts from the first session of 7 of 15 major research categories presented in the 1999 and 2000 Interscience Conference on Antimicrobial Agents and Chemotherapy. For each selected pair of abstract and related published paper, two independent investigators performed a detailed data comparison. Results: From 190 abstracts reviewed, 68 (36%) were subsequently published as full papers by March 2004. Fifty-two pairs referred to the same study population and period. Differences were found in 30 of 51 pairs, which were further analyzed (point estimate=59%, 95% C.I.: 45-73%). The identified differences were related to both the aims and conclusions of the study (3/30), the study conclusions only (2/30), numbers and/or rates of the studied patients (10/30), numbers or rates of microbiological isolates (9/30), MIC values or Ki values (5/30), other pharmacological properties of antibiotics (2/30), odds ratio (1/30), and duration of observation (1/30). Some differences were considered major. In bivariable associations, time to publication (from presentation in the conference to publication of the full paper) was associated with identifiable differences between the conference abstract and the full paper (OR=1.76, 95% CI 0.95-3.24/year of delay, P=0.07). Conclusions: It is reassuring that although we identified several reportable differences, only a very small proportion of studies exhibited differences in their aims and/or conclusions. Researchers may benefit from the above findings in improving the accuracy of presented data. [ABSTRACT FROM AUTHOR]

A laccase-mediator system (LMS) for biobleaching was applied to a bleached chemical pulp dyed with stilbene dye Direct Yellow 11. Of mediators tested, 2,2‘-azinobis(3-ethylbenzthiazoline-6-sulfonate) (ABTS) was found to be more effective than either violuric acid (VA) or N-hydroxybenzotriazole (HBT), which had been shown to be superior to ABTS when bleaching virgin chemical pulp. The laccase-ABTS system removed more than 60% of the color. [ABSTRACT FROM AUTHOR]

This article focuses on the journal "The Scandinavian Journal of Economics." In 2003, the four issues of volume 105 of "The Scandinavian Journal of Economics" were published. 25 contributions out of a total 34 contributions were regularly submitted articles, nine were published in special issue, "Population Dynamics and Macroeconomic Performance" and two were presentations of the recipients of the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel. The average publication lag, excluding the papers which appeared in our special issue and the Nobel material, from submission to acceptance of revised versions was 15.7 months, and from receipt of final versions to publication 9.0 months.

This paper adds to the literature on the information content of the paper-bill spread by explicitly taking into account the two sources of wider spreads, rises in the paper rate and declines in the bill rate. Results from impulse response analysis and variance decompositions suggest that decreases in real output are greater and last longer when a widening of the paper-bill spread comes from an increase in the paper rate rather than from an equivalent decrease in the bill rate. This is consistent with the idea that changes in the commercial paper rate have greater information content about future business cycles than do changes in the Treasury bill rate. [Copyright &y& Elsevier]

The androgenic potential of a New Zealand pulp and paper mill effluent was measured by applying a combination of in vitro and in vivo bioassays with mosquitofish (Gambusia affinis) and goldfish (Carassius auratus). The in vivo method assessed the rate of gonopodial development (masculinization) and alterations from normal reproductive behavior in adult female mosquitofish exposed for 21 d to untreated or secondary-treated pulp mill effluent. A second in vivo mosquitofish exposure tested the effect of glass-fiber (type C) filtration of secondary-treated effluent on rates of expression of the same endpoints. Extractable organics analyses of effluents and extracts thereof were conducted. Mosquitofish demonstrated significant masculinization on exposure to either treated or untreated effluent; the frequency of gonopodial development was reduced with effluent secondary-treatment. Male mating behavior was observed in the masculinized adult females. Glass-fiber (type F) filtration of the treated effluent eliminated the masculinizing effect, suggesting that the bioactive compounds were associated with the suspended solids. The in vitro method measured the binding of compounds within a treated thermomechanical/bleached kraft effluent extract to androgen receptors contained in goldfish testis cytosol. Exposure to extracts of either the particulate (glass-fiber filtered) or the dissolved organic fraction of the effluent produced significant binding (as indicated by the displacement of radiolabeled testosterone) to the androgen receptor in goldfish gonadal tissue. Thus, the dissolved organics extract of the treated effluent contained compounds androgenic to goldfish in vitro but not to mosquitofish in vivo. The combined in vitro and in vivo data suggest that the effluent in question could exert effects on the reproductive physiology of fishes through an androgenic mechanism. The androgenic compounds androstenedione and testosterone were not detected in the extracts used for... [ABSTRACT FROM AUTHOR]

San Lucas Quiaviní Zapotec (SLQZ), an Otomanguean language of Mexico, regularly allows apparent condition B and C violations: R–expressions and pronouns can appear to be locally and nonlocally bound by identical arguments. For this reason, the Zapotec languages have been claimed to be among those in which condition C is not operational. This paper shows, however, that bound names in SLQZ do not constitute condition C violations. Rather, they are anaphoric variables spelled out as copies of their antecedents. Evidence for this proposal comes from the fact that bound copies are interpreted as bound variables in VP–deletion contexts and from the fact that strong crossover effects hold robustly in the language, showing that condition C is operational. This paper also shows that identical facts hold in Thai, another language thought to lack condition C. [ABSTRACT FROM AUTHOR]

The narrow gap semiconductor TlBiTe2 undergoes a solid–solid phase transformation from the rhombohedral (D3d) to the cubic (Oh) phase. The present paper deals with the study of this phase transformation combining the results of Differential Scanning Calorimetry (DSC) and Transmission Electron Microscopy (TEM). It has been found that during heating the transformation is an athermal activated process, which can be described only by a combination of more than one processes while during cooling it exhibits an expectable thermal hysteresis due to the volume difference. The results of the kinetic analysis combined with the electron microscopy findings, supported also by the Fourier Transform Infrared (FTIR) spectroscopy ones, lead to the conclusion that TlBiTe2 undergoes a multiple-step, displacive, martensitic type transformation. [ABSTRACT FROM AUTHOR]

Rainbow trout were exposed to a secondary treated, thermomechanical/bleached kraft pulp and paper effluent in 12,000-L, flow-through exposure tanks at an environmental research facility located at a pulp and paper mill in Kawerau, New Zealand. Trout (age, 21 years) were obtained from a local hatchery and exposed either to upstream river water or a nominal concentration of 12% (v/v) effluent diluted in upstream river water. Three treatment groups were used: Effluent exposure that started approximately three months before gonadal growth (eight-month total exposure), effluent exposure that started approximately halfway through gonadal development (two-month total exposure), and trout exposed to reference water alone for the total duration of the experiment. Trout were sacrificed just before spawning; exposure, growth, and reproductive endpoints were assessed during and at the termination of the experiment. Reduction in growth was observed in both sexes in the eight-month treatment group relative to the river water reference treatment group. No differences were observed in condition factor or liver size in either treatment. Females in the eight-month exposure group also had significantly lower ovary weight. The two-month exposure group showed no differences from the reference group in growth or somatic indices. Estradiol and testosterone were reduced in blood samples taken from the eight-month exposure group by four months into the experiment as compared to the reference treatment. Steroid and vitellogenin levels in individual female trout from this treatment were significantly correlated with gonadosomatic indices (GSI) measured at the termination of the experiment. The GSI was not correlated strongly or consistently with pregnenolone, nor were any treatment-related preg-nenolone differences observed, indicating that the steroid hormone reductions likely were not related to cholesterol side-chain cleavage. Male trout showed significant induction of vitellogenin and... [ABSTRACT FROM AUTHOR]

The first overview is presented of the paper contents of Kew’s Economic Botany Collections (EBC). There are more than 350 specimens of paper representing nearly 50 plant families and more than a hundred genera. The dominant families numerically – and each for different reasons – are the Moraceae, Gramineae, Thymelaeaceae and Cyperaceae, examples from which are highlighted. Some emphasis is given to the historical context and geographical origin of papers, and to the people who collected or donated them. It is suggested that one focus of a future collecting strategy for the EBC should be the sorts of plant products, including papers, that are under threat due to losses of cultural diversity or biological diversity, or both. [ABSTRACT FROM AUTHOR]

Cysticercosis is an infestation of Cysticercus cellulosae. When it occurs in the brain, chronic neurological complications can ensue, most commonly seizures. Neurocysticercosis is usually diagnosed by neuroimaging, a technique not available in most endemic countries. Hence immunological tests are valuable for diagnosis and epidemiological surveys. We evaluated the suitability of paper for storing blood and cerebrospinal fluid (CSF) until subsequent testing by enzyme-linked immunosorbent assay (ELISA), by testing whole blood samples on filter paper from 305 patients and CSF samples from 117 patients stored on ordinary white typing paper and on filter paper. Optimal preservation of biological samples is achieved when whole blood is stored on filter paper, CSF on white paper, and when samples are frozen within 1 week after collection. Our results could improve diagnostic capabilities and facilitate epidemiological surveys in endemic countries where immunodiagnostic tests cannot be rapidly performed because of inadequate laboratory infrastructure. [ABSTRACT FROM AUTHOR]

Starting with a brief review of why all post-industrial societies tend to be inegalitarian, this paper develops two main themes: (1) how the idea that people are individually responsible for their own fates reduces poverty but impedes redistribution, and (2) how both the loose ties of individuals to their societies and the selective nature of their empathy and pity for others reduces compassion for the poor, making redistribution unlikely. The first theme is elaborated through psychological research on dispositional versus circumstantial attributions, showing their effects on the widely shared belief in a just world and more generally on the prevailing theory of the justice of deserts. The attribution-affect-action model is used to show how dispositional attributions evoke either anger or pity for victims and, if anger, then unwillingness to help. The development of the second theme shows how people divorce their own fates from those of their nations, how the basic tendency to favor the familiar and similar limits support for redistribution, how converting concern regarding deprivations of the self to concern for (fraternal) deprivation of people like the self excludes those who most need help, how envy fails to lead to redistribution, and finally, how people's ideas of the privileged and the disadvantaged reflect market values and often mark the poor and the different as overprivileged. [ABSTRACT FROM AUTHOR]

In the current climate of welfare reform, it is important to understand how perceptions of the poor affect policy decisions. This paper examines how people distinguish between the undeserving poor and the deserving poor, and how this differentiation affects policy decisions. Survey respondents rated each policy in a set of hypothetical policies on a liberal-conservative continuum. Analyses were then conducted to explore differences in the respondents' likelihood of recommending the most liberal and the most conservative of these policies. Study I demonstrated that liberal policies were more likely to be recommended and conservative policies were less likely to be recommended when the target group was perceived to be deserving rather than undeserving. Study 2 replicated this effect of perceived deservingness and demonstrated an effect of attribution of responsibility. That is, liberal policies were more likely to be recommended and conservative policies were less likely to be recommended when the responsibility for the target's poverty was attributed to society rather than to the individual. [ABSTRACT FROM AUTHOR]

Whey-protein-isolate coating on paper produced a smooth surface, which was observed by scanning electron microscopy. Increasing coating weight decreased the breaking stress and the Young's modulus. However, the maximum breaking strain was not affected by coating weight. Tearing strength was not changed by WPI coating. The coated paper was slightly darkened with a small reduction of L value, but the a and b values were not changed significantly. WPI coating made the coated paper slightly shiny with increased gloss. Thus, with the exception of about 12% reduction in breaking stress for 10 g/m² coated paper, WPI coating did not change the mechanical and optical properties of the paper markedly. WPI coating significantly reduced the rate of oil contact angle decrease on paper associated with off absorption by paper. Therefore, WPI coating improves packaging material performance of paper by increasing oil resistance without significant change of optical and mechanical properties. [ABSTRACT FROM AUTHOR]

Children in mainstream schools compared text on white paper with identical text covered in turn by each of ten differently-coloured plastic overlays. More than 50% reported improved perception with one or more colours, and were given the best colour to use. About half used the overlays for more than three months and their reading speed increased when the overlays were used. In Study I children were examined twice using different methods and examiners. 47% chose the same colour on both occasions, and showed the greatest improvement in reading fluency, reliable at retest. In Study II children were issued with a random colour, and the greatest improvements in reading speed occurred when the random colour was the same as that previously chosen. Phonological reading strategies were not related to visual symptoms, or the benefit from overlays. Across individuals, reading speed varied by a factor of more than three, for good and poor readers. Study III provided estimates of the prevalence of improvements based on a sample of 426 children from 12 schools: 5% of children read more than 25% faster with a coloured overlay. [ABSTRACT FROM AUTHOR]

The bleach plant of a pulp and paper (P&P) mill presents a major source of wastewater containing toxic organic matter characterized as chemical oxygen demand (COD). Due to their high oxidizing power, oxidoreductases hold promise to be a key solution for the removal of dissolved organic material. Here, four oxidoreductases from different enzyme families were selected to treat bleach plant effluents. Haloperoxidase treatment of the final effluent resulted in the highest levels of decolorization (71%) and reduction of aromatic compounds (36%). Using single compound analysis, 27 low molecular weight compounds were found to be persistent throughout the wastewater treatment process and, therefore, classified as hard COD. The tested enzymes efficiently removed several of the identified COD compounds. Hence, this study suggests that the application of oxidoreductases will serve as an environmental-friendly solution for reducing waste from P&P production., (© 2021 International Union of Biochemistry and Molecular Biology, Inc.)

In a multilayer insulator made of two or more materials with different dielectric constants and conductivities, internal space change accumulates at their interfaces. If the local field is increased by the accumulated charge, the electric durability of the insulator should be decreased. In this paper, we describe the space charge accumulation measured when oil-impregnated PPLP (polypropylene laminated paper), which consists of three layers, kraft paper, polypropylene (PP), and kraft paper, was subjected to a strong dc electric field. The experimental results suggest that internal space charge accumulates at both surfaces of a PP layer and that the electric field in the kraft paper layers disappears. © 1998 Scripta Technica, Electr Eng Jpn, 124(1): 1–6, 1998 [ABSTRACT FROM AUTHOR]

As part of the investigation of source of exposure to rosin allergens, disposable diapers (napkins) common on the Swedish market were analyzed, using gas chromatography, to detect the main rosin compounds. Rosin components were detected in alt diapers, the highest amounts in those from the 2 major producers. In these diapers, more rosin was found in the top layer, which is in close contact with the skin, than in the fluff. Despite the possibly minimal risk of induction of sensitization to rosin allergens in diapers, their is a real risk of elicitation of dermatitis in sensitive individuals, especially since penetration is enhanced by occlusion and irritation. Such material is not only used for infant diapers, but also for adult incontinence products and feminine hygiene products. [ABSTRACT FROM AUTHOR]

4 workers developed hand dermatitis in an automated starch modification process plant, 2,3-epoxypropyl trimethyl ammonium chloride (EPTMAC), a quaternary ammonium compound used as a cationizing chemical, produced allergic reactions an all 4 patients, They had only been in contact with EPTMAC for a short time before developing dermatitis, which indicates that EPTMAC is a strong sensitizer. Immunohistochemistry and electron microscopy showed the feature of an allergic patch test. An industrial hygiene project was initiated at the factory to prevent new cases. It revealed many risks of skin contact with the process chemicals. Thus an automated process does not guarantee protection. [ABSTRACT FROM AUTHOR]

Focuses on the provisions of the British government's report regarding government information entitled `White Paper.' Proposal for the accessibility of governmental information to public scrutiny; Support for transparency in international relations; Report's ambiguity on exemptions; Possible amendment of the Data Protection Act.

When skin-prick tests (SPTs) are used quantitatively, the circumference of the weal and/ or the flare is outlined using a felt tip pen. and transferred to paper by adhesive tape. The aim of the study was to develop and validate a procedure, objectively and precisely determining these areas after transfer to paper. A system was developed enabling the drawing of the area of weal or flare to be read by a hand-held scanner and calculated on a personal computer. Areas in the 5-500 mm2 range could be determined with day-to-day and interoperator coefficients of variation (CVs) of 3.1% and 1.8%, respectively. Accuracy was determined in two ways: by correlation to cutting/weighing of four times enlarged SPT areas (r2 = 0-999, P<0.001) and by measuring standardized areas (deviations less than intra-assay CV, i.e. 1.2%). For comparison, CVs of alternative methods were also determined: eight different areas (9-76 mm-) were evaluated in quadruplicate using the SPT-scanner (CV=l-4%). by cutting/weighing of paper (CV = 2.3%), by digitizing (CV = 4.4%) or by measuring longest and orthogonal diameters (CV= 13.6%). In conclusion, the scanning device and software provides an objective and reproducible procedure for rapid determination of SPT areas. When areas are determined by scanning, digitizing or cutting/weighing the variations in area determination becomes negligible compared to the variations of the entire skin test procedure. [ABSTRACT FROM AUTHOR]

In state-space systems, since the minimum statistical sensitivity structures obtained by the equivalent transformations are generally completely dense, they have defects and the numbers of parameters are very large. If this point can be improved, realizations with lower sensitivity and fewer parameters are obtained. This paper presents a synthesis of new minimum statistical sensitivity structures with fewer parameters as one such realization. First, to compare sensitivities of various realizations, assuming that only noninteger elements in the coefficient matrices contain small variations, the statistical sensitivity is defined. Since the sensitivity is invariant under the orthogonal transformations, using the symmetry of the coefficient matrices of the balanced realizations which are the members of the minimum statistical sensitivity structures, it is shown that a minimum statistical sensitivity structure can be realized with fewer parameters by defining an appropriate orthogonal transformation matrix. The number of parameters required in the proposed structure depends on the pole-zero configuration of the transfer function. Finally, various realizations are compared using numerical examples. As the parameters decrease, the insensitive elements increase. Therefore, the realization proposed in this paper has the lowest sensitivity. [ABSTRACT FROM AUTHOR]

This paper considers the determination of the frequency of a sinusoidal signal from its sampled values. A method is described by which the effect of the noise is reduced and the frequency is determined accurately. The method forms the sample set composed of four samples from the signal with unknown frequency, and the binary representation of the estimation is determined successively by varying the sampling frequency. However, the noise in the signal may produce an error. One means to eliminate the effect of the noise is to determine one bit of the binary number based on several sample sets. This paper proposes the following method to reduce the estimation error for the frequency due to the noise. The binary number is partitioned into the upper and lower bits. The upper bits are determined by the property of the rum, and the lower bits are determined by the property of the ramdom-walk. In either case, each bit is determined by several sample sets. By the evaluation based on the bit error rate, the accuracy is improved by combining the forementiomed methods, compared with the majority decision. A comprehensive evaluation was also made by simulation, indicating that the r.m.s. error can be reduced to 2 percent for the signal-to-noise ratio of 20 dB. [ABSTRACT FROM AUTHOR]

This paper presents the new upper bounds of channel width required in multi- layer channel routing under a wiring rule in which horizontal wires must be wired in the odd-numbered layers and vertical wires in the even-numbered layers. In (M ≧ 4)-layer channel routing, it is proved the upper bound is equal to [(dc +k)/[M/2]], where dc is the channel density, and k is 9 when M = 5, 7 when M is even, and 13 when M is odd and greater than 5. These upper bounds are obtained by presenting the multiple-layer channel routing algorithms, which wire the channels in a column-by-column manner. [ABSTRACT FROM AUTHOR]

In the firm belief that rural sociology is currently in a state of malaise, this paper attempts to diagnose the sickness. Some of the main aspects of what is called 'conventional rural sociology' are outlined and their limitations discussed. It is argued strongly that rural sociology must become more theoretically-oriented in the problems it sets itself and that more attention be given to conceptual and theoretical issues. It is hoped that the paper will provide a focus which will stimulate debate around the questions raised. [ABSTRACT FROM AUTHOR]

In Australia, tariffs and bounties form the major instruments of protection of manufacturing industries (IAC 1985). In the recent past, both tariffs and bounties were applied to the printing and writing paper industry. Recently, the bounties have been withdrawn. The main objective of the present study is to identify and quantify the factors which influence the size and growth of imports of printing and writing paper in the short run. More specifically, the factors determining the short run demand for and supply of printing and writing papers are considered, with emphasis on the relationship between domestic supply and imports. Domestic production of printing and writing paper is dominated by one producer, Associated Pulp and Paper Mills (APPM). However, two other local producers, who previously specialised in other types of paper, have recently increased their production of printing and writing paper as a result of the favourable outlook for these types of paper. Imports are a major competitive force in this market. The domestic market share of the printing and writing paper segment held by local producers was 58 per cent in 1975-76 and 50 per cent in 1984-85, but was as low as 58 per cent in 1981-82. Some of the imports, however, face no competition from domestic products. The identification of products which can and cannot be directly substituted for domestically produced papers is a difficult task. [ABSTRACT FROM AUTHOR]

Presents summaries of papers relating to agricultural economics. Details on the paper `Wetland Conversion for Agriculture after the FAIR Act,' by Roger Claassen, Ralph Heimlich and Robert House; Information on the paper `Farm Operations' Sources of Capital Financial Performance Measures,' by James Ryan; Presentation paper `Price Linkages and Asymmetry in Pork Markets,' by Ted Schroeder and James Mintert.

The article presents paper on human fetal skin development. It informs that stratum corneum is the outermost layer of mature human epidermis, which functions to protect our skin from external invasion and loss of internal fluids. This layer develops from a proliferation of basal cells that go through a pattern of differentiation with eventual formation of squamous cells, granular cells, and finally, cells of the stratum corneum. It further informs that four weeks after conception, human fetal skin is composed of periderm and a basal cell layer.

The article presents papers, which constituted the symposium on neonatal and developmental dermatology at the meeting of the Society for Investigative Dermatology under the joint sponsorship of the Society for Investigative Dermatology, Society for Pediatric Dermatology, and Society for Pediatric Research. It discusses Ichthyoses: disorders of lipid metabolism. It tries to review the evidence linking aberrant lipid metabolism to a group of skin diseases called ichthyoses and then examines the evidence that presently supports this hypothesis.

Indoor allergen exposure plays a major role in the development of sensitization and triggering of asthma in children. All over the world, mites are common sources of indoor allergens. Risk levels for mite-allergen exposure have been recommended. A mite-allergen level of ≥2 μg/g dust is considered a risk level for sensitization and symptoms of asthma. Data from several ongoing prospective studies of children show that mite sensitization may occur below the suggested threshold level. However, from these studies, it seems that high mite-allergen exposure increases the risk of early sensitization, whereas low exposure levels probably take a longer time to induce Sensitization. Assessment of allergen exposure and consideration of allergen-elimination strategies should not be limited only to the home environment. High levels of mite allergens are also found in day-care centers, schools, and various other public places. such as bars. Thus, in addition to homes, these environments should also be considered when allergen-avoidance measures are taken. Allergen content in dust can be expressed in several units, e.g., ng/g, ng/m2, and ng/sampling, and as the total amount of allergen. At present, there is no consensus on the best way to measure and express mite-allergen levels. In this paper, aspects of threshold levels for mite sensitization, various exposure environments, and sampling, determination, and expression units of mite exposure will be discussed in brief. [ABSTRACT FROM AUTHOR]

This paper gives a faunistic review of mites that have been recorded in the indoor environment, particularly homes, barns, and stored products, in Norway and the other Scandinavian countries. Some preliminary results are given from unpublished investigations in Norway. Seven species of pyroglyphid mites have been recorded: Dermatophagoides pteronyssinus, D. microceras, D. farinae, D. evansi, Euroglyphus maynei, Gynsnogiyphus ion gior, and Hirstia chelidonis. D. pteronyssinus was the predominant species, followed by D. microceras in Scandinavia and D. farinae in Denmark. D. evansi was detected in poultry houses in Norway. Lepidoglyphus destructor was the predominant species in barn dust, but large populations of Acarus, Tyrophagus, Tydeus, and Tarsonemidae also occurred. In humid homes, Glycyphagus domesticus was found in high numbers. The result of quantification of mites depends on the method for examination of dust. When one proposes limits for the concentration of mites in relation to risk of allergic sensitization and provocation of symptoms. reference should be made to a well-described method for sampling and analyzing dust. The number of mites should be given per area, not only per weight unit of dust. The number of mites per area indicates the number of mites in the home. The number of mites per weight Unit of dust describes the concentration of mites in the vacuum cleaner. [ABSTRACT FROM AUTHOR]

The distribution and abundance of dust mites can be modelled on three scales: the microhabitat scale (different habitats within homes), the macrohabitat scale (between homes), and the regional scale. This paper focuses on the first. Those parts of a home in which dust mite populations thrive will tend to be homogeneous in respect of key habitat suitability determinants. The more widespread such determinants, the greater the risk of high mite populations and allergen load. Habitat suitability determinants include an adequate textile substratum, optimal temperature and humidity, and fond resources of appropriate quality, as well as other, currently unknown, requirements. Each determinant will have s characteristic distribution within any home, and they can be conceptualized as a series of overlays, or three-dimensional Venn diagrams, with the areas of overlap representing the most suitable sites for mite survival. That a population of dust mites is focused by constraining biotic and abiotic determinants means that spatial and temporal distribution and abundance are predictable, because the characteristics of the principal foci define optimal conditions for population growth. This concept, known as ‘focality’, provides a framework for prediction of sites of high density of mite population and allergen exposure, as well as a basis for manipulating the microenvironment for control purposes. [ABSTRACT FROM AUTHOR]

This study investigated the effect of associative connections between words on speed of word recognition. The hypotheses were: recognition speed would be faster when an anticipated word was presented; recognition would be faster when the target word was preceded by an associated; and recognition would be slower when the target word was preceded by a nonassociate. 20 fourth graders recognized words under 5 treatment conditions in a counterbalanced design. The data supported these hypotheses. Results from this study indicated many similarities between adults and children in word recognition, and less quickly than adults when nonanticipated associatively connected words were shown. These differences suggest somewhat different strategies in word recognition. Hypotheses to explain these differences are contained in the paper. [ABSTRACT FROM AUTHOR]

The Cover Feature shows a printed paper‐based colorimetric chemosensor array for multi‐anion detection. The device shows various color changes upon the addition of target anions such as the herbicide glyphosate. Common office equipment is used for fabrication and recording: an inkjet printer is employed to produce the chemosensor array, and a flatbed scanner rapidly captures a digital image of the sensing results. This system is a promising platform for on‐site qualitative and quantitative analysis of multiple analytes. More information can be found in the Communication by T. Minami and co‐workers. [ABSTRACT FROM AUTHOR]

Objectives/hypothesis: The aim of the study was to investigate the healing rates, the restoration of hearing, and the time for complete healing of paper patching versus watchful waiting for traumatic tympanic membrane perforations (TTMPs)., Study Design: Systematic review with meta analysis., Methods: Publications were selected by a search on "PubMed," "Embase," and "Web of Science." A meta-analysis of risk ratios for paper patching (intervention arm) and watchful waiting (control arm) was performed., Results: Five studies describing 393 TTMPs were included in the quantitative meta-analysis. TTMP healing rates ranged between 84.2% and 95.2% in the intervention arm and between 76.7% and 84.8% in the control arm. The pooled risk ratio of healed TTMPs was significantly higher in the intervention arm than in the control arm (risk ratio: 1.12, 95% confidence interval: 1.04-1.21)., Conclusions: TTMPs have high healing potential with and without intervention. The healing rate of paper patching was superior to that of watchful waiting alone., Level of Evidence: NA Laryngoscope, 131:2091-2097, 2021., (© 2021 The American Laryngological, Rhinological and Otological Society, Inc..)

In this paper we report results concerning the use of paper as substrate and as an electronic component for the next generation of sustainable low cost electronic systems, where different examples of applications are given. [ABSTRACT FROM AUTHOR]

The article reports on the opportunity in the paper coating industry in relation to specialty chemicals. It notes that the market for specialty chemicals used for paper production is worth 16 billion dollars in which the sales is attributed to coating chemicals. It adds that the largest market for specialty paper chemicals is in Western Europe. It also cites that paper coatings are intended for a specific function and paper type.

Please cite this paper as: Pechtor K, Richards B, Paterson H. Antenatal catastrophic uterine rupture at 32 weeks of gestation after previous B-Lynch suture. BJOG 2010;117:889–891. [ABSTRACT FROM AUTHOR]

The article presents an introduction to a series of articles on several topics related to the environment. These topics include pulp and paper mill's effects on aquatic communities, patterns of a fish community structure in a watershed-scale study, study on the long-term receiving water study, and pattern of macroinvertebrate assemblages in a watershed-scale study. Other subjects are periphyton chlorophyll, fathead minnows, a multitrophic level study on pulp and paper mill, and effects of polychlorinated dibenzofurans on mink.

Piezoelectric nanogenerators (PENGs) based on micro‐fibre of polyvinylidene fluoride (micro‐fibre polyvinylidene fluoride (PVDF)). Flexible nanogenerator was developed by addition nanoparticle composition. This PENG fabricated using micro‐fibre PVDF/BaTiO3, which was deposited on paper interdigitate substrate by wire electrode free surface electrospinning method. The device from micro‐fibre PVDF performed open‐circuit voltage and short‐circuit current of 13 mV and 380 nA recently. The device from composite material addition value of open‐circuit voltage and short‐circuit current of 528 mV and 661 nA recently. [ABSTRACT FROM AUTHOR]

Workers in a print shop are exposed to photocopier toner dust and paper dust over a prolonged period of time. However, there are only rare case reports of toner and paper dust induced lung damage in humans. We reviewed our consultation files for a period of 30 years from 1987 to 2018 to look for cases with a diagnosis of giant cell interstitial pneumonia (GIP), printer toner exposure and paper dust exposure resulting in lung disease. There were two cases which met our inclusion criteria. Slides, clinical histories and imaging were reviewed. Both the patients had worked in print shops, and had no history of exposure to hard metals. Patient 1 presented with shortness of breath and cough over several months, while patient 2 was asymptomatic at presentation. Both the patients underwent surgical lung biopsies. Histopathologic examination from both the cases showed a spectrum of pathology, including features of GIP, desquamative interstitial pneumonia, chronic bronchiolitis with lymphoid hyperplasia, and particulate matter consistent with toner. Energy dispersive spectroscopy was performed on one case, and it revealed no cobalt or tungsten particles. The unusual combination of findings is very suggestive that toner particles with or without paper dust exposure were responsible for the pathologic changes in the lungs of these patients. This possibility should be explored further with additional patients who work in print shops where they are exposed to paper dust and paper toner and have signs or symptoms of diffuse lung disease., (© 2020 The Authors. American Journal of Industrial Medicine published by Wiley Periodicals LLC.)

Background: Total paper dust exposure has been associated with respiratory problems among workers in the soft tissue paper industry. However, a comprehensive job exposure matrix (JEM) has not been developed for application to this industry. Our study was intended to address this need and to support further studies of mortality and morbidity in a cohort of Swedish workers from this industry., Methods: We evaluated four participating soft tissue paper mills in Sweden. We combined information on process and equipment status from the mills with knowledge of the mills obtained through research efforts and paper dust measurements made at all four mills to develop a semi-quantitative JEM with seven dust exposure levels. The JEM was targeted at workers enrolled into a soft tissue paper mill cohort and working any time between 1960 and 2009., Results: The JEM includes a total of 14 421 cells, with each cell corresponding to the exposure for a job title, department, or work location for a one-year period. Exposure levels in the JEM were estimated to decline at three of the four mills from 1971 to 2009, but overexposures (ie, exceedances of the relevant occupational exposure limits) remained common at the end of the period., Conclusions: The JEM results highlight the need for ongoing exposure control efforts in the soft tissue paper industry, and will inform ongoing epidemiological studies of the health effects of exposure to paper dust in Sweden. It is freely available for use by other researchers., (© 2020 Wiley Periodicals, Inc.)

A new method of actuating liquid metal using capillary action via paper media is presented. This actuation method uses no electrical power and is capable of moving a liquid‐metal slug up to 3 mm/s. A microstrip transmission line switch was fabricated to demonstrate this new actuation method. This switch has >40 dB isolation and <2 dB insertion loss across a 5‐GHz span. [ABSTRACT FROM AUTHOR]

The article introduces the theme of the articles featured in the issue. The main topics in all the papers presented in the issue revolve around study of various aspects of voluntary associations. The study of voluntary associations involves three separate theoretical concerns. The first, and perhaps oldest of these, focuses on the nature and structure of society, especially industrial society. A second theoretical interest in voluntary associations is social psychological in emphasis; here voluntary associations are examined for what they can tell us about the nature of the person in contemporary society. Finally, voluntary associations may be studied within the framework of organizational theory with a focus upon associations as the units to be studied. Four of the papers in this issue are directly concerned with the problem of the contribution of voluntary associations to the society in which they exist. Most studies of voluntary associations implicitly suggest that such groups are integrative.

The article reports that the art and science of recording illustration and text is a vital instrumentality in what is sometimes referred to as civilization. Research and developments in printing, photography and in Photronic Onset are rooted in the need to advance the science and craft of accurate recording, with or without printing plates. Photography requires wet chemicals, considerable time to process a negative and print on paper, and to dry both negative and paper. There is a wide range of requirements for the reproduction of copy for many purposes in commercial, educational, and governmental business systems.