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ABSTRACTThere is growing interest in the use and utility of news media content analysis in tourism research. We report a content analysis of 153 news media articles on a topic of growing interest among tourism researchers globally: tourism and biosecurity. Our work is based on media reports from Aotearoa New Zealand news sources over the period 2009–2019, identifying five key themes. Together they illustrate how tourism, nature conservation, agriculture, horticulture and forestry are utterly and irretrievably interconnected in global flows of people and organisms. They also highlight the important role played by the many actors at policy and operational levels in tourism and border control that have a role to play in minimising potential impacts of biosecurity breaches. We conclude by discussing the value of media content analyses in tourism research stressing that the method, on its own, will reveal only part of the story, and should always be followed up with more intense and critical interrogation of the issues under study.

A personal narrative is presented which explores the authors experience of being honoring the name of the philanthropist as much as he honored the Institute.

Homework policies and guidelines are the topics outlined in this article. Homework policies should address the amount of homework and amount of school time available to do the homework. Guidelines for grading homework are also discussed. It is recommended that teachers should prepare a written description of homework practices for the principal. Examples of preparation, practice, extension, and creative homework are described by K-12 teachers. Their suggestions are directed at helping administrators to help teachers not only vary homework assignments, but also focus on each type of assignment. Four references are included. (SI)

ABSTRACTThis article discusses the relationships among leadership, race and racism, and social constructionism within counseling leadership. Accordingly, we critically examine the dominant constructions of race and racism within leadership. Next, we propose seven social constructionist principles to inform leadership’s construction and praxis within counseling. Finally, we utilize social constructionism and leadership, further informed through race-centered and anti-racism literature, to further this profession’s constructions of race and racism within leadership and future race-centered and anti-racism leadership actions.

Democracy in America, by Alexis de Tocqueville (Henry Reeve, translator; Sanders & Otley, London; 1835) Alexis de Tocqueville (18051859) was a French aristocrat and one of America's very best friends, [...]

A personal narrative is presented which explores the authors experience of being a tribute to the Harvard men who had fought for the Union in the Civil War.

ABSTRACTLeadership as part of school counselor competence remains under-addressed in supervision. Grounded in prior research models, we introduce the Model for Supervision of School Counseling Leadership (MSSCL) which is a 10 x three x three framework. We provide examples for each of the 90 different leadership x Focus x Role combinations through an appendix that can be used in supervision, discuss the use of the MSSCL, and identify implications for practice, training, and future research.

In the choice of my topic, I unknowingly filched the title of Justice Sandra Day O'Connor's memoirs. I meant to call upon what is awesome and venerable in the law, [...]

This ERIC Digest discusses reasons for using cooperative learning approaches in preschool centers and primary school classrooms, ways to implement the strategy, and the long-term benefits for children's education. It is pointed out that early childhood educators can use many of the strategies currently used to encourage cooperation and interaction in older children. Ten basic steps for the successful implementation of cooperative learning activities are listed. (RH)

Avian wing morphing allows dynamic, active control of complex flight manoeuvres. Previous linear time-invariant (LTI) models have quantified the effect of varying fixed wing configurations but the time-dependent effects of morphing between different configurations is not well understood. To fill this gap, I implemented a linear parameter-varying (LPV) model for morphing wing gull flight. This approach models the wing joint angles as scheduled parameters and accounts for nonlinear kinematic and gravitational effects while interpolating between LTI models at discrete trim points. With the resulting model, I investigated the longitudinal response associated with various joint extension trajectories. By optimizing the extension trajectory for four independent objectives (speed and pitch angle overshoot, speed rise time and pitch angle settling time), I found that the extension trajectory inherent to the gull wing does not guarantee an optimal response but may provide a sufficient response with a simpler mechanical implementation. Furthermore, the results indicated that gulls likely require extension speed feedback. This morphing LPV model provides insights into underlying control mechanisms, which may allow for avian-like flight in future highly manoeuvrable uncrewed aerial vehicles.

Birds morph their wing shape to accomplish extraordinary manoeuvres1–4, which are governed by avian-specific equations of motion. Solving these equations requires information about a bird’s aerodynamic and inertial characteristics5. Avian flight research to date has focused on resolving aerodynamic features, whereas inertial properties including centre of gravity and moment of inertia are seldom addressed. Here we use an analytical method to determine the inertial characteristics of 22 species across the full range of elbow and wrist flexion and extension. We find that wing morphing allows birds to substantially change their roll and yaw inertia but has a minimal effect on the position of the centre of gravity. With the addition of inertial characteristics, we derived a novel metric of pitch agility and estimated the static pitch stability, revealing that the agility and static margin ranges are reduced as body mass increases. These results provide quantitative evidence that evolution selects for both stable and unstable flight, in contrast to the prevailing narrative that birds are evolving away from stability6. This comprehensive analysis of avian inertial characteristics provides the key features required to establish a theoretical model of avian manoeuvrability.

Corrosion of reactor effluent air coolers (REACs) and associated piping has been a serious problem in hydrocracking and high severity hydrotreating units, since these processes were first introduced. Using a [...]

Recent research reported changes in fetal growth due to increased methyl donor availability through periconceptual supplementation of the dam. We hypothesized that maternal supplementation of methionine (MET) or guanidinoacetic acid (GAA) during the periconceptual period will result in a methyl donor surplus or deficiency in maternal serum and ultimately influence fetal body and organ weight at d +63 gestation. The objectives of this study were to evaluate effects of methyl donor surplus or deficiency during the periconceptual period of gestation on metabolite concentrations in the heifer and the effects on early fetal development. Eighty MARC II heifers (n = 20 per treatment, initial BW = 346 ± 8 kg) were stratified by age and weight to one of four treatment groups to receive 100 g of supplement: ground corn carrier as control (CON), MET (10 g/d) in ground corn, GAA (40 g/d) in ground corn, and MET + GAA (10 g/d MET + 40 g/d GAA) in ground corn. Supplementation began 63 d before breeding (d –63) until d 63 of gestation (d +63), and serum samples were collected before feeding on d -63, at breeding, and d +63. Heifers were bred using male sexed semen from the same sire, and 35 heifers were confirmed pregnant (CON, n = 10; MET, n = 8; GAA, n = 7; MET + GAA, n =10) and harvested at d +63 of gestation to collect maternal and fetal samples. Data were analyzed as a 2 × 2 factorial design with 2 levels of MET and 2 levels of GAA. Methionine concentrations in maternal serum were greater (P= 0.05) in MET and MET + GAA supplemented heifers at d 0 and d +63 compared with CON and GAA at d -63, d 0, and d +63. There were no differences (P≥ 0.15) in the concentration of GAA or creatine due to supplementation; however, both were decreased at breeding (P <0.01) compared with d -63 and d +63. Fetuses from MET supplemented heifers had greater (P= 0.01) brain weight and Longissimus muscle than dams not receiving MET. We conclude that MET supplementation during the periconceptual period can alter methyl donor availability and increase fetal muscle development. USDA is an equal opportunity provider and employer.

Recent research has demonstrated that feeding rumen protected methionine (MET) products increases circulating methionine while feeding guanidinoacetic acid (GAA) may result in a methyl deficiency. Therefore, we hypothesized that maternal MET or GAA supplementation from 63 days before breeding until d 63 of gestation would increase fetal hepatic methyl donors or result in a fetal hepatic methyl donor deficiency, respectively. Eighty MARC II heifers (n = 20 per treatment; initial BW = 344 ± 8 kg; day -63) were weighed and assigned to one of four breeding groups and four treatments stratified by age and starting weight. Heifers were fed a total mixed ration to gain 0.68 kg/d and received 100 g of one of four treatments top dressed: control supplement of ground corn (CON), MET (10 g/d) in a ground corn carrier, GAA (40 g/d) in a ground corn carrier, or MET + GAA (10 g/d MET + 40 g/d GAA) in a ground corn carrier. At breeding (d 0), all heifers were bred to a single sire using male sexed semen. At d 63 of gestation, 35 heifers (CON n = 10, MET n = 8, GAA n = 7, MET + GAA, n = 10) confirmed pregnant with bull calves were humanely slaughtered and fetal liver tissues were collected and sent to Metabolon Inc. for global metabolomics analysis. Data were analyzed as a 2 x 2 factorial with 2 levels of GAA and 2 levels of MET with breeding group included in the model. For this abstract, only metabolites from the methionine cycle and adjacent pathways will be reported and only metabolites with significant P-values will be discussed (P≤ 0.05). There were no main effects or interactions for the abundance of methionine, GAA, creatine, SAM, SAH or homocysteine. Glycine was decreased and sarcosine increased in fetuses from MET supplemented dams. Serine was affected by a MET x GAA interaction being decreased in livers of CON, MET, and MET + GAA fetuses compared with GAA. Cystathione, S-methylcysteine, s-methylcysteine sulfoxide, and hypotaurine were greater in fetuses of MET supplemented heifers and pyridoxal phosphate was reduced in fetal liver of MET supplemented heifers. The abundance of urea was greater in GAA supplemented fetuses. These results indicate that fetuses from dams fed methionine may be able to maintain balance in methionine supply by shunting methionine through adjacent pathways including the transsulfuration pathway. We also interpret these data to imply that excess methionine is not utilized by the fetus and is metabolized to products that can be excreted. Lastly, GAA did not alter the fetal methyl supply. USDA is an equal opportunity provider and employer. Funded by (USDA-NIFA-AFRI # 2022-67015-36196).

In 2008, The French critic Lucien Jaume published an interpretation of Alexis de Tocqueville that won a prize from the Academie Francaise. An English version by the eminent translator Arthur [...]

HAVING WRITTEN a book on manliness, I have been asked whether I have anything to say on femininity or womanliness. I do, but it takes the form of suggestions. I [...]

Each spring, as the Ides of March approach, hordes of college students and faculty members, having endured the long, dreary winter days of cold and darkness, swarm south to Florida. [...]

We sought to determine whether continuous low-level lead exposure (100 ppm lead acetate in drinking water) for periods of 1, 3, 6, 9, or 12 mo would produce adverse effects on kidney function or morphology in rats. Maximum blood lead levels in experimental animals were reached at 3 mo and averaged 29.4 [+ or -] 4.1 [mu]g/dl. Glomerular filtration rate, determined by single-injection [I.sup.125]-iothalamate clearance, was found to be significantly increased above pair-fed controls at 1 and 3 mo, but it was normal at other time periods. Levels of urinary N-acetyl-[beta]-D-glucosaminidase exceeded levels found in controls at all time periods, except at 12 mo, when the normal increase with aging obscured differences between experimental animals and controls. in contrast, urinary ligandin (glutathione S transferase), a more specific marker of metal-associated proximal tubular injury, was normal at all time periods. Proximal tubular nuclear inclusion bodies were sparse and were observed only at 1 and 3 mo. There were no other pathological alterations in the kidneys, except at 12 mo, at which time mild tubular atrophy and interstitial fibrosis were seen. Therefore, low-level lead exposure in rats produced no significant changes in renal function and produced only mild alterations in renal morphology after 12 mo. The absence of changes in urinary ligandin accorded with the relative absence of morphological changes, whereas the observed increases in urinary N-acetyl-[beta]-D-glucosaminidase suggest that this enzyme may be an overly sensitive indicator of tubular injury., Although the adverse effects of high-dose lead administration on renal morphology and function are incontrovertible,[12,16,34] there have been only a few studies to date that evaluate the possible harmful effects [...]

This paper presents how our system, consisting of a GNSS receiver antenna, an inertial measurement unit (IMU) and a lidar, is used in order to obtain high-precision maps through the [...]

There was never any doubt in my mind that our Founding Fathers had it right. Our system is the best! Who could doubt it? It is without peer! It works, [...]

Predicting, as Mark Twain observed, is a hazardous business, especially when it involves the future. Economists know full well that prescience is a quality the gods jealously guard, reserving it [...]

I had always known I would come back. Indeed, even as I stepped from the gangplank to the ship that would take us halfway around the world to Seattle, I [...]

OL0003 Recently a colleague, Michael Metzger, Professor of Business Law and one of the shimmering faculty lights of Indiana University, edited the special September-October 1990 Business Horizons issue covering the [...]

The objective of this study was to determine the dose-dependent response of one-carbon metabolite (OCM: methionine, choline, folate, and vitamin B12) supplementation on heifer dry matter intake on fixed gain, organ mass, hematology, cytokine concentration, pancreatic and jejunal enzyme activity, and muscle hydrogen peroxide production. Angus heifers (n= 30; body weight [BW] = 392.6 ± 12.6 kg) were individually fed and assigned to one of five treatments: 0XNEG: total mixed ration (TMR) and saline injections at days 0 and 7 of the estrous cycle, 0XPOS: TMR, rumen-protected methionine (MET) fed at 0.08% of the diet dry matter, rumen-protected choline (CHOL) fed at 60 g/d, and saline injections at days 0 and 7, 0.5X: TMR, MET, CHOL, 5-mg B12, and 80-mg folate injections at days 0 and 7, 1X: TMR, MET CHOL, 10-mg vitamin B12, and 160-mg folate at days 0 and 7, and 2X: TMR, MET, CHOL, 20-mg vitamin B12, and 320-mg folate at days 0 and 7. All heifers were estrus synchronized but not bred, and blood samples were collected on days 0, 7, and at slaughter (day 14) during which tissues were collected. By design, heifer ADG did not differ (P= 0.96). Spleen weight and uterine weight were affected cubically (P= 0.03) decreasing from 0XPOS to 0.5X. Ovarian weight decreased linearly (P< 0.01) with increasing folate and B12injection. Hemoglobin and hematocrit percentage were decreased (P< 0.01) in the 0.5X treatment compared with all other treatments. Plasma glucose, histotroph protein, and pancreatic α-amylase were decreased (P≤ 0.04) in the 0.5X treatment. Heifers on the 2X treatment had greater pancreatic α-amylase compared with 0XNEG and 0.5X treatment. Interleukin-6 in plasma tended (P= 0.08) to be greater in the 0XPOS heifers compared with all other treatments. Lastly, 0XPOS-treated heifers had reduced (P≤ 0.07) hydrogen peroxide production in muscle compared with 0XNEG heifers. These data imply that while certain doses of OCM do not improve whole animal physiology, OCM supplementation doses that disrupt one-carbon metabolism, such as that of the 0.5X treatment, can induce a negative systemic response that results in negative effects in both the dam and the conceptus during early gestation. Therefore, it is necessary to simultaneously establish an optimal OCM dose that increases circulating concentrations for use by the dam and the conceptus, while avoiding potential negative side effects of a disruptive OCM, to evaluate the long-term impacts of OCM supplementation of offspring programming.This study determined that disrupted one carbon metabolism negatively affects multiple physiological systems; however, supplementation strategies that do not negatively impact one-carbon metabolism will not negatively impact the heifer.The feeding of one-carbon metabolites (including methionine and B vitamins) has been shown to improve fetal growth and milk production in species such as mice, sheep, and dairy cattle. Extending this to beef cattle around the time of breeding is a growing area of research. Our group previously determined that one-carbon metabolite supplementation to beef heifers altered the abundance of circulating methionine-folate cycle intermediates in a dose-dependent manner. Therefore, we aimed to determine a whole-body response to one-carbon metabolite supplementation in heifers by measuring the effects on specific physiological systems as well as a total systemic response. We determined that treatments that negatively altered the methionine-folate cycle yielded a fundamental negative whole-body response to supplementation.

Fall-calving primiparous beef females [body weight (BW): 451 ± 28 (SD) kg; body condition score (BCS): 5.4 ± 0.7] were individually-fed 100% (control; CON; n= 13) or 70% (nutrient restricted; NR; n= 13) of estimated metabolizable energy and metabolizable protein requirements from day 160 of gestation to calving. Post-calving, all dams were individually-fed tall fescue hay supplemented to meet estimated nutrient requirements for maintenance, growth, and lactation in Calan gates until day 149 of lactation, which limited calves to milk only. From day 150 of lactation until weaning at day 243, dams and calves were group-fed in drylots. Dam BW and metabolic status were determined every 21 d, and BCS and backfat (BF) were determined every 42 d of lactation until weaning. Pre-weaning calf BW, size, and metabolic status were determined every 21 d. Data were analyzed with nutritional plane, calving date, and calf sex (when P < 0.25) as fixed effects. Circulating metabolites included day and nutritional plane × day as repeated measures. We previously reported that post-calving, NR dams were 64 kg and 2.0 BCS less than CON, but calf BW and size at birth were not affected. During the first 147 d of lactation, NR dams gained more (P < 0.01) BW than CON and increased (P < 0.01) BCS, while CON decreased (P ≤ 0.01) BCS and BF. Previously, NR dams had lower (P< 0.01) circulating triglycerides on day 1 of lactation, tended to have lower (P= 0.08) triglycerides on day 21, and had lower (P≤ 0.04) non-esterified fatty acids (NEFA) on days 21 and 243 than CON. Maternal glucose and urea N were not affected (P ≥ 0.73). At weaning, NR dams weighed 17 kg less (P = 0.15), were 0.67 BCS lower (P < 0.01), and tended to have less (P = 0.06) BF. Calves born to NR dams weighed less (P = 0.02) than CON by day 42 of age and were 13% smaller (P < 0.01) at weaning. Calf girth measures diverged (P≤ 0.05) by day 21 of age, and skeletal size measures were less (P≤ 0.08) for calves born to NR dams at most timepoints after day 63 of age. Calves born to NR dams tended to have lower (P = 0.09) circulating urea N pre-weaning than CON, but glucose, triglycerides, and NEFA were not affected (P ≥ 0.16). In summary, first-parity beef females that were nutrient restricted during late gestation experienced compensatory growth and gained body condition during lactation but were still thinner at weaning. Nutrient restriction reduced pre-weaning calf growth, likely due to decreased milk production.First-parity beef females that were nutrient restricted during late gestation and then fed to meet estimated nutrient requirements during lactation experienced compensatory growth but were still in poorer body condition at weaning than controls. Despite a similar birth weight, calves born to nutrient restricted dams diverged in body weight by day 42 of age and weighed less at weaning.Nutrient requirements increase substantially during late gestation in the beef female; however, poor forage nutrient availability can result in undernutrition. For heifers, the added nutrient requirements needed to continue growing during their first pregnancy and lactation pose an even greater challenge. It is plausible that lingering effects of late gestational nutrient restriction may exist for the dam and calf pre-weaning. We report that first-parity beef females that were nutrient restricted during late gestation and then fed to meet estimated nutrient requirements during lactation recovered quickly metabolically and experienced compensatory growth, but still had less body condition at weaning than controls. Late gestational nutrient restriction did not affect calf size at birth but resulted in calf body weight and size measures diverging early in life. Ultimately, nutrient restriction resulted in a 13% decrease in weaning weight, which was likely due to decreased milk production (in a companion paper). Despite this, metabolic status of calves born to nutrient restricted dams was not greatly altered. In summary, first-parity beef females that were nutrient restricted during late gestation prioritized partitioning nutrients to maternal growth and energy reserves over milk production during lactation, but dams were thinner at weaning, and pre-weaning calf growth was slowed.

More about the United States and Some about Singapore Writing, though often painful, can be its own reward. The sheer act of arranging words, organizing thoughts, creating verbal images, and [...]

Suitestakes Winner As anyone in Aberdeen can tell you Super 8's Ron Rivett likes to have fun . . . THE SPECTACULAR growth of Super 8 Enterprises Inc. is often [...]

Mark Twain once remarked, 'The art of prophesy is very difficult, especially with respect to the future.' At the turn of the century the New York Times, quoting respected scientists, [...]

Follicular progression during peripuberty is affected by diet. Vascular endothelial growth factor A (VEGFA) induces follicle progression in many species; however, there are limited studies to determine if diet may alter the effects of angiogenic VEGFA165-stimulated follicle progression or antiangiogenic VEGFA165b follicle arrest. We hypothesized that diet affects the magnitude of angiogenic and antiangiogenic VEGFA isoform actions on follicular development through diverse signal transduction pathways. To test this hypothesis, beef heifers in our first trial received Stair-Step (restricted and refeeding) or control diets from 8 to 13 months of age. Ovaries were collected to determine follicle stages, measure vascular gene expression and conduct ovarian cortical cultures. Ovarian cortical cultures were treated with phosphate-buffered saline (control), 50 ng/ml VEGFA165, VEGFA165b, or VEGFA165 + VEGFA165b. The Stair-Step heifers had more primordial follicles (P < 0.0001), greater messenger RNA abundance of vascular markers VE-cadherin (P < 0.0001) and NRP-1 (P < 0.0051) than controls at 13 months of age prior to culture. After culture, VEGFA isoforms had similar effects, independent of diet, where VEGFA165 stimulated and VEGFA165b inhibited VEGFA165-stimulated follicle progression from early primary to antral follicle stages. In vitro cultures were treated with VEGFA isoforms and signal transduction array plates were evaluated. VEGFA165 stimulated expression of genes related to cell cycle, cell proliferation, and growth while VEGFA165b inhibited expression of those genes. Thus, VEGFA isoforms can act independently of diet to alter follicle progression or arrest. Furthermore, follicle progression can be stimulated by VEGFA165 and inhibited by VEGFA165b through diverse signal transduction pathways.