Preferred Resources Research Articles

Latitudinal gradient in cortisol concentrations in Canada lynx (Lynx canadensis) is not explained by diet

Food limitation is an important stressor for most wildlife, and many specialist consumers will expand their dietary niche to contend with preferred prey limitation. How these dietary responses feed back into stress-axis regulation, however, is unknown. If alternative prey does not sufficiently fill the energetic requirements normally satisfied by preferred resources, then long-term glucocorticoid concentrations could be elevated in individuals consuming alternative prey. We measured cortisol concentrations and stable isotope ratios (δ13C and δ15N) in hair of Canada lynx (Lynx canadensis Kerr, 1792) across their distribution to determine the influence of diet on glucocorticoids while controlling for harvest location. We calculated the Euclidean distance between lynx and regional snowshoe hare (Lepus americanus Erxleben, 1777) stable isotope ratios as an index of diet specialization. We found no relationship between this index and cortisol, suggesting that prey types are interchangeable for lynx in terms of long-term stress axis activation. However, lynx cortisol increased significantly towards the northwestern region of lynx distribution, contrasting with our prediction, and highlighting important considerations for future research. This combination of glucocorticoid and diet analyses suggests that dietary plasticity does not necessarily alter an individual’s experience of potential stressors, despite important implications to population and community dynamics.

Alternative functional strategies and altered carbon pathways facilitate broad depth ranges in coral‐obligate reef fishes

Abstract Spatial refuges in peripheral habitats will become increasingly important for species persistence as climate change and other disturbances progressively impact habitat quality and assemblage compositions. However, the capacity for persistence will be determined in part by species‐specific abilities to absorb costs related to altered or decreased quantities and quality of resources at range peripheries. We compared variations in dietary strategies and energy acquisition trade‐offs along depth gradients in two obligate corallivores that differ in level of diet specialization. We also assessed depth‐related changes in energy pathways and energy content of their mixotrophic prey. We found no changes in feeding effort or total resource availability (total coral cover) towards deep range margins, but availability of the preferred resource (Acropora coral) decreased. While both species selectively targeted Acropora, the more specialized species (Chaetodon baronessa) exhibited limited feeding plasticity along the depth gradient. The degree of selectivity towards the preferred coral increased rather than decreased with depth, being 40 times greater than expected, given availability, at their range periphery. In contrast, the generalist's diet (Chaetodon octofasciatus) varied greatly in response to changes in resource availability with depth. Unexpectedly, the energy content of Acropora did not decline with depth, likely due to increased coral heterotrophy in deeper water, indicated by shifts in their molecular isotope geochemistry. This shift was accompanied by a 20% increase in plankton‐sourced carbon in the muscle tissue of deep‐resident fish, despite no observations of direct feeding on plankton food sources. Our results indicate that deep ranges in coral‐obligate reef fishes are supported by multiple mechanisms of trophic versatility in both the fish and corals. This nutritional plasticity likely serves a compensatory role in the resilience and eventual adaptation of organisms at their range peripheries. For species vulnerable to increasing anthropogenic impacts at range cores, variable and multi‐trophic functional responses can act to buffer against costs and increase the refuge potential of range peripheries. Specialist consumers may also be supported indirectly at range margins via trophic plasticity within their preferred prey. A free Plain Language Summary can be found within the Supporting Information of this article.

Linking Biodiversity Data Using Evolutionary History

All life on earth is linked by a shared evolutionary history. Even before Darwin developed the theory of evolution, Linnaeus categorized types of organisms based on their shared traits. We now know these traits derived from these species’ shared ancestry. This evolutionary history provides a natural framework to harness the enormous quantities of biological data being generated today. The Open Tree of Life project is a collaboration developing tools to curate and share evolutionary estimates (phylogenies) covering the entire tree of life (Hinchliff et al. 2015, McTavish et al. 2017). The tree is viewable at https://tree.opentreeoflife.org, and the data is all freely available online. The taxon identifiers used in the Open Tree unified taxonomy (Rees and Cranston 2017) are mapped to identifiers across biological informatics databases, including the Global Biodiversity Information Facility (GBIF), NCBI, and others. Linking these identifiers allows researchers to easily unify data from across these different resources (Fig. 1). Leveraging a unified evolutionary framework across the diversity of life provides new avenues for integrative wide scale research. Downstream tools, such as R packages developed by the R OpenSci foundation (rotl, rgbif) (Michonneau et al. 2016, Chamberlain 2017) and others tools (Revell 2012), make accessing and combining this information straightforward for students as well as researchers (e.g. https://mctavishlab.github.io/BIO144/labs/rotl-rgbif.html). For example, a recent publication by Santorelli et al. 2018 linked evolutionary information from Open Tree with species locality data gathered from a local field study as well as GBIF species location records to test a river-barrier hypothesis in the Amazon. By combining these data, the authors were able test a widely held biogeographic hypothesis across 1952 species in 14 taxonomic groups, and found that a river that had been postulated to drive endemism, was in fact not a barrier to gene flow. However, data provenance and taxonomic name reconciliation remain key hurdles to applying data from these large digital biodiversity and evolution community resources to answering biological questions. In the Amazonian river analysis, while they leveraged use of GBIF records as a secondary check on their species records, they relied on their an intensive local field study for their major conclusions, and preferred taxon specific phylogenetic resources over Open Tree where they were available (Santorelli et al. 2018). When Li et al. 2018 assessed large scale phylogenetic approaches, including Open Tree, for measuring community diversity, they found that synthesis phylogenies were less resolved than purpose-built phylogenies, but also found that these synthetic phylogenies were sufficient for community level phylogenetic diversity analyses. Nonetheless, data quality concerns have limited adoption of analyses data from centralized resources (McTavish et al. 2017). Taxonomic name recognition and reconciliation across databases also remains a hurdle for large scale analyses, despite several ongoing efforts to improve taxonomic interoperability and unify taxonomies, such at Catalogue of Life + (Bánki et al. 2018). In order to support innovative science, large scale digital data resources need to facilitate data linkage between resources, and address researchers' data quality and provenance concerns. I will present the model that the Open Tree of Life is using to provide evolutionary data at the scale of the entire tree of life, while maintaining traceable provenance to the publications and taxonomies these evolutionary relationships are inferred from. I will discuss the hurdles to adoption of these large scale resources by researchers, as well as the opportunities for new research avenues provided by the connections between evolutionary inferences and biodiversity digital databases.

A qualitative study on motivators and barriers affecting entrepreneurship among Latinas

PurposeThe study aims to explore motivators and barriers in business venture creation among potential Latina entrepreneurs.Design/methodology/approachFocus group interviews collected data using Latinas between the ages of 20-30 who expressed interest in starting their own businesses in the near future. Interview participants were primarily first-generation college students.FindingsFindings revealed major themes based around four dimensions of cultural heritage, motivators, barriers and preferred resources. Cultural heritage and gender are both enablers and obstacles for Latinas. Frequently mentioned motivators were parental business ownership, autonomy, flexible income and self-fulfillment. The barriers include fear, lack of financial management knowledge, business location selection and discrimination. The preferred resources were informal education, a checklist, a toolkit, free online resources and networking with business owners and mentors.Research limitations/implicationsThe findings of this study highlight pull factors (i.e. family business background and self-fulfillment) increasing entrepreneurial motivations among Latinas. The present study illustrates the nuanced but substantive interactions of gender and ethnicity in Latinas’ perceptions and attitudes toward new business formation.Originality/valueThe present study contributes to the literature by exploring the motivators and barriers that affect business formation among emerging Latina entrepreneurs. Moreover, past research has not explored both motivators and barriers perceived by nascent Latina entrepreneurs. Findings from this study will assist future researchers in developing materials and programs to aid female and ethnic entrepreneurship.

Not berry hungry? Discovering the hidden food sources of a small fruit specialist, Drosophila suzukii

1. Although polyphagy is widespread among Drosophila, some specialist species have evolved in response to resource competition and other selection factors favouring niche separation. The small fruit specialist Drosophila suzukii Matsumura has evolved a unique serrated ovipositor that allows it to access ripening fruit, a niche unavailable to most Drosophila. However, it is unclear whether ancestral traits (the use of non‐fruit resources) are maintained in this specialist species.2. In this study, maternal preferences and offspring fitness in response to novel apple, mushroom, and bird manure‐based diets were investigated by comparing oviposition and offspring survival and development on various diets. The effect of those diets on survival at cool temperatures and the effect of natal environment/previous exposure on adult preferences were evaluated.3. Female D. suzukii accepted non‐fruit diets such as mushroom and bird manure, and offspring completed their larval development on all diets tested. However, D. suzukii did not perform well on diets that included bird manure. By contrast, combinational apple/mushroom diets were associated with greater oviposition, lower mortality, faster development, and larger offspring than other diets. These diets were also associated with increased resistance to cold stress, and preference for these diets was positively affected by previous feeding experience.4. These data suggest that D. suzukii may use non‐fruit resources when preferred resources are scarce. Given that this pest is adapted to temperate climates, alternative resources might provide seasonal nutritional support when fruit resources are not temporally available, although field data are needed to support this hypothesis.

Uncovering hidden resource allocation decisions: An application in hospital bed management

Developing proper decision-making policies can improve the performance of organizations, but it relies on the study of previous decisions and their consequential effects on performance metrics. While information systems provide large amounts of data stored in distributed databases, often it is not enough data to precisely identify past decisions. Multiple database mining is one solution to extract information about these man-made decisions. In this study, we extend the concept of rule-based entity resolution, in the context of resource allocation, to link two heterogeneous spatio-temporal databases and extract information related to non-automated decisions in a healthcare setting. This problem is motivated by a hospital bed assignment problem and the solution is applied to uncover bed managers’ decisions to assign patients to inpatient wards. We present a polynomial time algorithm that allows for uncovering resource allocation decisions regarding choices among a preferred resource and substitute resources. The algorithm is tested on a variety of simulated databases, with varying underlying parameters, and is applied in a hospital case study. The performance of the algorithm in uncovering the hidden decisions is shown to be very effective and the algorithm is robust to missing data on various system sizes with respect to accuracy, precision, and recall.

Utilization of ICT among the Faculty Members of Government Siddha Colleges in Tamil Nadu

The present study deals with Utilization of ICT among the faculty members of Siddha Colleges and various level of operating system with the information accessed by the faculty through the internet. The survey was conducted with the help of the questionnaire and personal interview. The responses received from the available faculty are presented in tables and data is analyzed by using simple statistical method. The findings reveals that the access of electronic information is an important component of research activities for faculty members like E-Journals, E-books, E-databases are most preferred electronic information resources.

Vertebrate florivory of vascular epiphytes: the case of a bromeliad

The avoidance of vertebrate herbivory is thought to be one of the possible drivers for the evolution of epiphytism. Scarce literature suggests that epiphyte herbivory is mainly related to insect attack on reproductive structures. In a pine-oak forest we observed almost all inflorescences of an epiphytic bromeliad (Tillandsia carlos-hankii) with signs of florivory; the degree of damage suggested that vertebrate herbivores could be involved. To assess the intensity of vertebrate florivory damage we recorded the percentage of damaged individuals in a 500 m2 plots during two flowering seasons. To identify possible vertebrate herbivores, we installed 20 mixed capture stations, 10 photo-traps focused on bromeliads and analyzed stomach contents of captured vertebrates. Florivory was observed on 62% of individuals during the first flowering season and 77% on the second; and average one individual lost 41% of reproductive structures. Vertebrates associated with florivory were a bird, Icterus bullockii (Aves, Passeriformes, Icteridae), a squirrel Sciurus aureogaster (Mammalia, Rodentia, Sciuridae), and mice, Peromyscus gratus, P. levipes and P. aztecus (Mammalia, Rodentia, Cricetidae). Our results suggest that vascular epiphytes are used as opportunistic resources for small vertebrates during seasons when preferred resources are scarce.

EEG and ANS markers of attention response in vegetative state: Different responses to own vs. other names

ABSTRACT Covert measures of information-processing are valuable tools to support assessment of patients’ disorders of consciousness because of their potential in revealing what seem to be hidden. Those measures allow to overcome some limitations of traditional behavioural methods, which are often biased by difficulties in detecting reliable patients’ responses. Therefore, we aimed at exploring patterns of psychophysiological responses (electroencephalography – EEG, skin conductance level – SCL, skin conductance response – SCR, heart rate – HR) marking potentially-preserved processing of personally-relevant stimuli in a sample of VS patients. In particular, we compared the processing of own vs. other names due to the intrinsic salience, relevance, and familiarity of such stimuli. Analysis of electroencephalography, skin conductance and heart rate modulations highlighted a consistent pattern of increased skin conductance and heart rate measures in response to patients’ own name with respect to other names. Further, we observed increased delta and decreased alpha activity over frontal areas in response to their own name with respect to other names. Own-name stimuli might preserve their peculiar qualification even after severe brain damage and might call on residual attention orientation and preferred coding resources, suggesting the existence of partly preserved information-processing pathways that extends beyond basic auditory sensory processing.

Differential resource consumption in leaf litter mixtures by native and non-native amphipods

Leaf litter processing is an essential ecosystem function in freshwater systems, since much of the carbon and nutrients moving through freshwater food webs come from the surrounding terrestrial ecosystems. Thus, it is important to understand how the species performing this function differ, especially because many native species are being replaced by non-native species in aquatic ecosystems. We used a field experiment to examine leaf consumption rates of two common shredding macroinvertebrates (the native Gammarus fossarum and the non-native Gammarus roeselii). Leaves from three species, varying in resource quality, were added both in leaf monocultures and as a three-species mixture. Biomass-adjusted daily consumption rates were similar between the two amphipod species, and each consumed nitrogen-rich alder leaves faster than oak or beech leaves. However, because adult G. roeselii are approximately twice the size of G. fossarum, this led to systematic, though nonsignificant, differences in consumption rates at the per-capita or population level. Furthermore, we found nuanced effects of decomposer identity on leaf decomposition in mixtures. Only G. roeselii showed increased consumption of the preferred resource (alder) in the mixture, while G. fossarum consumed all leaves at the same proportional rates as in monocultures. This is an important distinction, as most measures of macroinvertebrate leaf shredding are made in the laboratory with only a single leaf resource available. Our results, based on a field experiment which could control the presence of dominant macroinvertebrates while still providing natural, biologically realistic context, suggest that even functionally similar species may subtly shift ecosystem processes.

A survey identifying nutritional needs in a contemporary adult cystic fibrosis cohort

BackgroundCystic fibrosis (CF) is a disease in which nutritional barriers are diverse and common, with malnutrition greatly influencing pulmonary trajectory and overall outcomes. Despite this, the most effective methods to optimize CF nutrition are unknown, and literature describing patients’ perspectives on their specific nutritional needs is lacking, particularly in the modern era of CF care. This study aimed to identify the most important nutritional needs and desired health-improvement resources in a contemporary adult CF cohort.MethodsA 14-question investigator-designed survey addressing nutrition concerns, preferred health-improvement resources, and dietary/exercise routines was administered to CF adults. Clinical characteristics and survey responses are presented with descriptive statistics, and responses compared by body mass index (BMI) category (< 18.5 kg/m2; 18.5–24.99 kg/m2; 25–29.99 kg/m2; ≥30 kg/m2), gender, and socioeconomic status using Chi square or Fisher’s Exact testing.ResultsOf 66 total patients, nine (13.6%) were underweight (BMI < 18.5 kg/m2), while 19 (28.8%) were overweight or obese (BMI ≥ 25 kg/m2). In the overall cohort, the most common primary concern was preventing weight loss [in 20/66 patients (30.3%)], but there were significant differences by BMI (p < 0.001), with the most common concern in the overweight subgroup being preventing weight gain. Fifteen (46.9%) men (BMI mean 20.7, range 16.4–29.2 kg/m2) listed preventing weight loss as the primary concern, compared to only 5 (14.7%) women (BMI mean 18.4, range 16.2–19.9 kg/m2), representing a trend toward a difference in primary concerns by gender (p = 0.066).The most commonly desired health-improvement resource was online CF nutrition and fitness information, found in 26 patients (39.4%) in the overall cohort, without significant differences by BMI (p = 0.814) or gender (p = 0.199). Financial assistance was the preferred resource in 17 (26.2%), without differences by socioeconomic status (p = 0.367).ConclusionsWe identified a wide variety of nutritional needs in CF adults, including a high prevalence of overweight status, many patients desiring weight loss, and many seeking financial resources. Our findings support the individualization of modern-day CF nutrition programs and development of online resources, in an effort to address the heterogeneous barriers that exist in the contemporary CF population and improve outcomes in patients with the disease.

Use of e-resources by post graduate students, research scholars and faculty members of department of sociology, Aligarh muslim university: A study

The purpose of this study is to ascertain usage pattern of e-resources by students, research scholars and faculty members of the Sociology Department of AMU. The development in information technology has brought e-resource as a boon to research communities and today they are becoming a major source for scholarly communication. Electronic resources are generally accepted and used because of their unique advantages such as ease of usability, readability, affordability and accessibility. In the present studies, the usage pattern of e-resources has been studied by the author with the help of deep literature review followed by recording feedback by way of questionnaire, interviews and investigators observation method. Findings of this study shows that majority of the users including PG students, research scholar, and faculty members opined e-resources as the most preferred and helpful resources and they are satisfied with library's physical facilities, working hours and the service provided by library and their staff.

A Needs Assessment of Family Physicians to Inform Development of Educational Resources on Antipsychotic Use in Dementia.

Objectives: Objectives of this study were to (1) assess the needs and preferred resources of Iowa physicians to inform the development of educational resources for best practice dementia care and (2) compare the responses of nursing home medical directors with nonmedical directors. Methods: Of 498 physicians, 101 (20%) completed and returned the survey. Family physicians were obtained from a list of family physicians from the Iowa Board of Medical Examiners. Respondent answers were summarized and presented as total numbers and percentages in tables. Significant differences between medical directors and nonmedical directors were evaluated using chi-square tests, Fisher exact tests, and Wilcoxon rank-sum tests. Results: Medical directors and nonmedical directors had similar preferences for resources used and information needs. Online resources, pocket guides, a handbook, consulting pharmacists, and facility in-services were the most commonly preferred sources of new information. Medical directors were significantly more aware of the Food and Drug Administration warning on antipsychotic use in dementia and treated more nursing home patients. No differences were observed between groups related to confidence in and use of nondrug strategies instead of antipsychotics to manage behavioral symptoms of dementia. Conclusion: The results of this survey illustrate physician preferences for information and resources on the management of behavioral and psychological symptoms in dementia. Information was used to inform the development of resources to aid physicians and other health care providers in making decisions about managing these symptoms.

Why do breast cancer survivors decline a couple-based intimacy enhancement intervention trial?

Recruitment challenges hinder behavioral intervention research in cancer survivors. The purpose was to examine the reasons for declining and intervention preferences of study-eligible breast cancer survivors declining a trial of a four-session couple-based Intimacy Enhancement intervention (refusers) and explore whether refusers differed from participants on key characteristics. Partnered, post-treatment breast cancer survivors reporting sexual concerns who were eligible for but declined participation in the intervention trial were approached to complete a standardized 5-min telephone survey assessing reasons for declining and support preferences. Demographic, clinical, and sexual concerns information were collected during screening. Trial participants and refusers were compared on key variables of age, race, hormone therapy use, time since treatment, level of sexual concerns, and recruitment method using t-tests or chi-square tests. Among the 31 women who declined the trial and completed the survey, the most common reasons for declining were time commitment (74%) and partner noninterest (32%). Most (61%) reported that the telephone format played little to no role in their refusal. Eighty-one percent wanted their partners involved in a program addressing sexual concerns. The two most preferred resources were informational websites (45%) and meeting with a professional (26%). Trial participants and refusers did not differ on any key factors examined. Developing intimacy interventions that are very brief, partner-optional, or that use stepped care may bolster uptake. The methods used to examine study-eligible candidates' needs and preferences could be employed in other health populations, thus having broader implications for research design.

A Question (Still) Worth Asking about The Religions of Man

Abstract Based on a lecture first presented at the 2017 annual meeting of the American Academy of Religion (AAR), this paper explores the possible reasons for the continued popularity of the work of the late Huston Smith – carried out in what could be characterized as the pre-history of the North American field’s rebirth in public universities throughout the late 1960s and early 1970s. For unlike other works dating from the 1950s, which are now read, if at all, only as primary sources and thus as evidence of an earlier time in the field, his book (originally entitled The Religions of Man [1958]) presents a dated example worth considering, inasmuch as it is, for many, still the preferred classroom resource for training newcomers to the field.

Influence of preexisting preference for color on sampling and tracking behavior in bumble bees

Animals must balance inherited bias with new information. Bumblebees frequently sample an innately preferred resource, but quickly leave when it varies in reward. This switch occurs even when the reward is potentially high. However, when innately preferred resources provide steady rewards the original preference remains. Bumblebees also take longer to sample other resources, are more likely to revisit that resource, and avoid variable resources when their preferred resources provide stable rewards.

OR-051 Exploration of Potential Integrated Biomarkers for Sports Monitoring Based on Metabolic Profiling

Objective Metabolomic analysis is extensively applied to identify sensitive and specific biomarkers capable of reflecting pathological processes and physical responses or adaptations. Exercise training leads to profound metabolic changes, manifested as detectable alterations of metabolite levels and significant perturbations of metabolic pathways in sera, urine, and rarely, in saliva. Several metabolites have been exploited as biomarkers for generally evaluating physical states in almost all sports. However, alterations of metabolic profile caused by specific sports would be heterogeneous. Thus, developments of new techniques are eagerly required to identify characteristic metabolites as unique biomarkers for specifically accessing training stimulus and sports performances. In the present work, we conducted both metabolic profiling and a binary logistic regression model (BRM) of biological fluids derived from rowing ergometer test with the following aims: 1) to examine changes of metabolite profiles and identify characteristic metabolites in the samples of sera, urine, and saliva; 2) to screen out potential integrated biomarkers for sports-specific monitoring.&#x0D; Methods A total of 11 rowers (6 male, 5 female; aged 15±1 years; 4±2 years rowing training) underwent an indoor 6000m rowing ergometer test. Samples of sera, urine and saliva were collected before and immediately after the test. 1D 1H NMR spectra were recorded with a Bruker Avance III 650 MHz NMR spectrometer. NMR spectra were processed and aligned, resonances of metabolites were assigned and confirmed, and metabolite levels were calculated based on NMR integrals. Multivariate statistical analysis was carried out using partial least-squares discrimination analysis (PLS-DA) to distinguish metabolic profiles between the groups. The validated PLS-DA model gave the variable importance in the projection (VIP) for a given metabolite. Moreover, inter-group comparisons of metabolite levels were quantitatively conducted using the paired-sample t-test. Then, we identified characteristic metabolites with VIP&gt;1 in PLS-DA and p&lt;0.05 in t-test. Furthermore, we screened out potential biomarkers based on the characteristic metabolites identified from the three types of biological fluids using the BRM (stepwise).&#x0D; Results The rowing training induced profound changes of metabolic profiles in serum and saliva samples rather than in urine samples. Totally, 44 metabolites were assigned in which 19, 20, and 19 metabolites were identified from serum, urine and saliva samples, respectively. Seven metabolites were shared by the three types of samples. Moreover, five characteristic metabolites (pyruvate, lactate, succinate, N-acetyl-L-cysteine, and acetone) were identified from the serum samples. The elevated levels of pyruvate, lactate and succinate suggested that, the rowing training evidently promoted both oxidative phosphorylation and glycolysis pathways. Furthermore, three characteristic metabolites (tyrosine, formate, and methanol) were identified from the saliva samples. Given that tyrosine is the precursor of dopamine, the increased level of salivary tyrosine in all rowers experiencing the test, suggesting that salivary tyrosine could be explored as a potential indicator closely related to nervous fatigue in the test. On the other hand, PLS-DA did not show observable distinction of metabolic profiles between the urine samples before and immediately after the test. Moreover, 20 urinary metabolites did not display detectable altered levels. We then established the BRM with the identified characteristic metabolites, from which we selected one optimal regression model based on serum pyruvate and salivary tyrosine (adjusted R square was 0.935, P&lt;0.001), indicating that the two selected metabolites would efficiently reflect the metabolic alterations in the test.&#x0D; Conclusions As far as the 6000m rowing ergometer test is concerned, serum samples could be a preferred resource for assessing the changes of energy metabolism in the test, while urine samples might have a relatively lower sensitivity to exercise-induced metabolic responses. Even though metabolite levels in saliva samples are generally lower than those in serum and urine samples, some salivary metabolites potentially have higher sensitivities to exercise-induced metabolic responses. Thus, the integration of multiple biomarkers identified from different type of species could potentially provide more sensitive and specific manners to monitor physical states in sports and exercise. This work may be of benefit to the exploration of integrated biomarkers for sports-specific monitoring.

Settling in or passing through: differentiating between wood‐boring beetle visitation and colonization after a dead wood pulse

AbstractTo determine the effect of resource pulses on animal communities, it is important to differentiate the species colonizing the resource substrate from the ones simply moving through the system. In a manipulative field study, we surveyed the response of wood‐boring beetles (Coleoptera) to the small debris produced by commercial thinning operations in white spruce plantations using two methods. First, we sampled the wood‐boring beetles visiting the plantations using flight intercept traps. Then, at the end of the resource pulse in fresh woody debris, we documented the abundance of beetle emergence holes on vertical and horizontal woody debris, which indicate wood‐boring beetle colonization. Results demonstrated that the small horizontal debris generated by commercial thinning were used by saproxylic beetles but were not a preferred resource for colonization, by contrast with vertical dead wood. Only small‐body beetles colonized the horizontal debris and most debris were not colonized. Vertical dead wood, even if present in relatively small quantity when compared to horizontal dead wood, was a major determinant of beetle colonization and community composition. Biomass removal was shown to have a strong detrimental impact on beetle colonization rates. Based on these results, we suggest that most of the saproxylic species trapped after commercial thinning operations were attracted in response to the initial pulse of resource but did not actually colonize the debris from thinning. Thus, we stress the importance of distinguishing between species visitation and colonization following a resource pulse when sampling relies on indirect trapping methods.

Assessment and evaluation of drug information services provided by drug information centre at a multispecialty hospital in Erode, Tamil Nadu, India

Background: To evaluate the performance of Drug Information Centre (DIC) in providing quality drug information services to the health care professionals.Methods: It was a prospective study carried out for a period of six months (June-November 2017). The drug information services provided by the pharmacist at the DIC during ward rounds, direct access, telephone and mail were documented in the drug information request and documentation forms. The quality of drug information provided was assessed with the help of feedback questionnaire which was filled by receivers.Results: A total of 283 queries were received, with a maximum from ward rounds 140(49.47%). On evaluation, it was found that most of the queries were from physicians 207 (73.14%) followed by nurses 33(11.66%), pharmacists 26 (9.18%), patients 17 (6.07%). Among that 178 (62.89%) queries were received from department of general medicine. Most of the queries were intended to update knowledge 110 (38.86%) and for the purpose of better patient care 90 (31.81%). The time frame for an authentic reply ranged from minutes to 24 hours, where a maximum of 110 (38.86%) queries had sent a 24 hours deadline. The majority of the queries were for adverse drug reactions [ADR-60 (21.20%)] and most preferred resources were primary 188 (66.43%).Conclusions: The DIC has always presented and offered itself to be an impressive resource, which is used routinely as an information source by all levels of professionals involved in the health system, in addition to the patients themselves.

P153 Could pbls provide with enough b cells for a successful flow crossmatch?

Although lymph nodes are preferred resources for isolation of lymphocytes for crossmatches, the nodes may not be available at the time of crossmatching. An unusual case led us to revisit 39 deceased donor’s crossmatch results to see if enough B cell events were acquired in flow crossmatching. Cells were isolated using Density Gradient of Ficoll-Hypaque from pronase-treated PBL, and/or from lymph nodes. Flow crossmatches (FCXM) were performed on a BD FACSCalibur. In FCXM, anti-CD3 was used to mark T-cells, anti-CD19 was used to mark B-cells and goat anti-human IgG was used as a secondary antibody for detection of donor specific antibody. A 38 years old Caucasian female suffered a severe injury from a car accident was evaluated as the potential deceased donor for three kidney recipients. Three tubes of PBL were received for initial FCXM. The crossmatch failed due to lower B cell events (<400) acquired. Crossmatches were repeated using cells of lymph nodes. All crossmatches were negative and one of the three potential recipients was transplanted. We further analyzed 39 deceased donors. Out of the 39 donors, 23 had nodes at the time of crossmatch, 10 only had PBL, and 6 donors had both PBLs and nodes available. We found that T and B cell ratio was between 1:1 and 32:1 in PBL. 90% of donors fall in the range of 1:1 to 10:1. We further investigated the cause of donor death, WBC counts and medical histories but found no association between these factors with the T/B cell ratio or total lymphocyte number. All crossmatches with cells of lymph nodes were successful. Out of 16 crossmatches with cells of PBLs, only one (6%) did not have enough B cells. Our findings suggest the PBLs, as the resources of cells for crossmatch, most of the times (94%) could result in successful crossmatches.