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Aims Our objective was to determine how injectable antimicrobials affected populations of Salmonella enterica, Escherichia coli and Enterococcus spp. in feedlot cattle. Methods and Results Two arrival date blocks of high-risk crossbred beef cattle (n = 249; mean BW = 244 kg) were randomly assigned one of four antimicrobial treatments administered on day 0: sterile saline control (CON), tulathromycin (TUL), ceftiofur (CEF) or florfenicol (FLR). Faecal samples were collected on days 0, 28, 56, 112, 182 and study end (day 252 for block 1 and day 242 for block 2). Hide swabs and subiliac lymph nodes were collected the day before and the day of harvest. Samples were cultured for antimicrobial-resistant Salmonella, Escherichia coli and Enterococcus spp. The effect of treatment varied by day across all targeted bacterial populations (p ≤ 0.01) except total E. coli. Total E. coli counts were greatest on days 112, 182 and study end (p ≤ 0.01). Tulathromycin resulted in greater counts and prevalence of Salmonella from faeces than CON at study end (p ≤ 0.01). Tulathromycin and CEF yielded greater Salmonella hide prevalence and greater counts of 128ERYR E. coli at study end than CON (p ≤ 0.01). No faecal Salmonella resistant to tetracyclines or third-generation cephalosporins were detected. Ceftiofur was associated with greater counts of 8ERYR Enterococcus spp. at study end (p ≤ 0.03). By the day before harvest, antimicrobial use did not increase prevalence or counts for all other bacterial populations compared with CON (p ≥ 0.13). Conclusions Antimicrobial resistance (AMR) in feedlot cattle is not caused solely by using a metaphylactic antimicrobial on arrival, but more likely a multitude of environmental and management factors.

Bovine respiratory disease (BRD) is the primary animal health concern facing feedlot producers. Many antimicrobial mitigation strategies are available, but few studies have compared feedlot performance during both the receiving and finishing periods following application of different antimicrobials used as metaphylaxis at arrival. The objective of this study was to compare antimicrobial metaphylaxis methods on clinical health and growth performance across both the receiving and finishing periods. A total of 238 multiple-sourced steers in two source blocks were used in a generalized complete block design. The four treatments included: 1) a negative control, 5 mL of sterile saline injected subcutaneously (CON); 2) subcutaneous administration of florfenicol at 40 mg/kg of BW (NUF); 3) subcutaneous administration of ceftiofur in the posterior aspect of the ear at 6.6 mg/kg of BW (EXC); and 4) subcutaneous administration of tulathromycin at 2.5 mg/kg of BW (DRA). The morbidity rate for the first treatment of BRD was decreased for the DRA and EXC treatments compared to CON and NUF (P

In the feedlot, there can be a decrease in dry matter intake (DMI) associated with reimplanting cattle that negatively affects growth performance. This study was conducted to determine the mechanisms causing a decrease in DMI after reimplanting and identify a strategy to mitigate the decrease. Crossbred steers (n = 200; 10 pens/treatment; initial bodyweight [BW] = 386 ± 4.9 kg) were used in a randomized complete block design experiment. Cattle were implanted with Revalor-IS on day 0. Treatments included a Revalor-200 implant on day 90 before feeding with the following management practices imposed: 1) steers were returned to their home pen immediately after reimplant (PCON); 2) steers were placed in pens and restricted from feed and water for 4 h (RES); 3) steers were walked an additional 805 m after reimplant and then returned home (LOC); 4) steers were restricted from feed and water for 4 h and walked an additional 805 m (RES + LOC); 5) steers were given an oral bolus of Megasphaera elsdenii (Lactipro; MS Biotec, Wamego, KS) and were restricted from feed and water for 4 h, and then walked an additional 805 m (LACT). One hundred steers were given an ear tag to record minutes of activity (ESense Flex Tags, Allflex Livestock Intelligence, Madison, WI). As a percentage of BW, DMI was 5% greater (P = 0.01) from reimplant to end for PCON vs. RES, LOC, and RES + LOC treatments. Likewise, as a percentage of BW, DMI was 6.6% greater (P = 0.03) from reimplant to end and 4.0% greater (P = 0.05) overall for the PCON treatment vs. the LOC treatment. Overall, DMI as a percentage of BW was 3.3% greater (P = 0.02) for PCON vs. RES, LOC, and RES + LOC treatments. There was an increase in G:F from reimplant to end (P = 0.05) for RES + LOC vs. the LACT treatment. From these data, we conclude that restricting cattle from feed and water for 4 h after reimplanting did not alter subsequent DMI. Increasing locomotion had the greatest negative effect on DMI and growth performance. Management strategies to decrease locomotion associated with reimplanting would be beneficial to DMI and overall growth performance of finishing beef steers.

Industrial-organizational (I-O) psychology is indeed moving forward in its involvement in humanitarian concerns (Berry et al., 2011), but as Gloss, Carr, Reichman, Abdul-Nasiru, and Oestereich (2017) point out, I-O psychologists tend to focus less on those of low income and the informal economy and more on working professionals in the formal economy (POSH). We propose (a) additional reasons for why the POSH bias may undermine science, (b) more solutions to benefit the impoverished, and (c) a broader conceptualization of humanitarian work psychology (HWP).

In this mixed-methods study, librarians at Kennesaw State University Library System conducted a year-long design research project to create a flexible subject guide “blueprint” for undergraduate students using LibGuides. Methods included a card sorting study with 18 undergraduate students and usability testing with 40 undergraduate students. The study’s goals were to identify what content, aesthetic design, organization, and structure students preferred on a subject guide. This paper addresses the current literature on research guides usability, overviews the design and implementation of the study, and highlights practical results that will easily be transferrable to other libraries.

It appears that although Gloss, Carr, Reichman, Abdul-Nasiru, and Oestereich (2017) have considered many of the arenas where industrial and organizational (I-O) psychology intersects with impoverished or atypical populations, an oft-overlooked domain is that of I-O psychologists working in military settings. Arguably the largest humanitarian aid and development organization in the world, national militaries offer a rich opportunity for I-O psychologists to study not only the more “POSH” aspects of work, but also the difficulties surrounding employees who must address impoverished citizens, lack of resources, bureaucracy far removed from the front lines, discrimination, threats to safety, and all kinds of cross-cultural interactions. As such, this humanistic, humanitarian movement could do well from studying the ways military units have successfully and not-so-successfully approached a timely and difficult subject.

If you’re an academic librarian with faculty status, you know that this status comes with an equal portion of benefit and burden. Some of the benefits are academic freedom, support for scholarship, and elevated status on campus (though not necessarily higher pay). Some library faculty are even eligible for tenure (though at my institution, Kennesaw State University, we are not). On the flipside of these benefits are a few things I would consider burdens, such as tedious annual reviews and extensive service requirements. Library faculty governance, I would argue, falls somewhere in between a benefit and a burden.

Particionamento de tarefas em animais eusociais e provavelmente uma adaptacao evolutiva, que otimiza a eficiencia de forrageio da colonia, gerando maior capacidade de crescimento e reproducao. Nos investigamos o particionamento indireto de tarefas, com o envolvimento de castas de dois tamanhos distintos. Assim, o material coletado por uma formiga nao era transportado diretamente ao ninho, nem transferido diretamente de um individuo para outro, mas sim descartado por uma formiga e coletado por outra. Em duas abordagens distintas, nos confirmamos em Atta sexdens rubropilosa resultados anteriores relativos a ocorrencia deste particionamento indireto de tarefas, observado em Atta colombica . Mostramos tambem que, assim como em Atta colombica , ha uma correlacao entre os tamanhos da formiga e do fragmento de folha transportado quando esta corta e transporta este fragmento ao ninho (CaT). Mais ainda, confirmamos em Atta sexdens que, quando o particionamento de tarefas ocorre e as formigas apenas transportam o fragmento de folhas (T) cortadas por outras formigas, a correlacao desaparece. Nos tambem descrevemos que as formigas CaT sao menores do que as T.

Polyethylene glycol (PEG) has long been used as a membrane fusogen, but recently it has been adopted as a technique for peripheral nerve repair. Vertebrate models using PEG fusion have shown improved outcomes when PEG is applied during repair of severed peripheral nerves. The cellular mechanism of PEG fusion in the peripheral nerve repair model has not previously been assessed via flow cytometry. PEG fusion was assessed in this experiment by dying B35 rat neuroblastoma cells with different color fluorescent labels. The different color cells were combined and PEG was applied in concentrations of 50%, 75% and 100%. The amount of cell fusion was assessed via flow cytometry as the percentage of double positive cells. Results showed increasing fusion and decreasing viability with increasing concentrations of PEG.

Background: Historically, complication rates after pressure ulcer reconstruction utilizing flap coverage have been high. Patients undergoing operations for pressure ulcer coverage typically have multiple risk factors for postoperative complications. The purpose of this study was to examine a large patient series in the pressure ulcer population to uncover objective evidence of the linkage between risk factors and outcomes after flap coverage. Methods: This study was a retrospective chart review of patients who underwent flap reconstruction for a pressure ulcer between 1997 and 2015. The characteristics of patients were analyzed to determine those who had complications such as pressure ulcer recurrence, wound dehiscence, and wound infection. Results: All patients (N = 276) underwent flap coverage of their pressure ulcers. The overall complication rate was 58.7% (162 patients). Wound dehiscence was the most common complication (31.2%), and the pressure ulcer recurrence rate was 28.6%. Multivariate regression for pressure ulcer recurrence revealed that body mass index