The Greening of Faith: God, the Environment, and the Good Life (20th Anniversary Edition)

The recent release of Pope Francis’s much-discussed encyclical on the environment, Laudato Si’: On Care for Our Common Home, has reinforced environmental issues as also moral and spiritual issues. This anthology, twenty years ahead of the encyclical but very much in line with its agenda, offers essays by fifteen philosophers, theologians, and environmentalists who argue for a response to ecology that recognizes the tools of science but includes a more spiritual approach—one with a more humanistic, holistic view based on inherent reverence toward the natural world. Writers whose orientations range from Buddhism to evangelical Christianity to Catholicism to Native American beliefs explore ways to achieve this paradigm shift and suggest that “the environment is not only a spiritual issue, but the spiritual issue of our time.”https://scholars.unh.edu/unh_press/1003/thumbnail.jp

Nondestructive Inspection of High Performance Ceramics

Two ceramic materials, a hot-pressed silicon nitride and a siliconized silicon carbide, were manufactured with seeded particulates to evaluate the effectiveness of existing nondestructive test practices at AMMRC for defect detection in ceramics and to evaluate the effect of inclusions upon material strength. The types of seeded defects were of greater and lower density relative to the matrix materials and ranged in size from approximately 0.1 mm to 0.6 mm. The nondestructive methods used in the investigation were ultrasonics, radiography, eddy current and penetrant. Bend bar specimens were cut from the seeded regions of the billets and tested at 25°C, 1093°C and 1371°C. Fracture origins were examined by optical and electron microscopy and by microprobe to correlate the nature of the fracture initiating defects with the nondestructively detected defects. This permitted a ranking of defect detection sensitivity and defect effect upon strength

Obelisks and the Power of Monument

Obelisks were massive granite spires erected to honor the Egyptian sun god Ra and to glorify the individual kings who ordered their construction. Obelisks served to syncretize both king and god to reflect the divinely-ordained position kingship held within Egyptian society. By the New Kingdom period, kings used obelisks to adorn their tombs and temples, replacing the much larger and more expensive pyramid tombs of the Old Kingdom. Eventually, Egypt’s power faded, and most obelisks fell into disrepair, all but lost to time. That was until the arrival of Augustus, the first emperor of Rome. With the defeat of his rivals, Marc Antony and Cleopatra, Augustus brought Egypt under the Roman fold. This marked a major shift in both nations, with Egypt quickly becoming one of the most influential cultures in Rome. The emperors themselves became some of the biggest proponents of this ‘Egyptomania,’ shown namely with their rediscovery of obelisks and subsequent transportation of the unwieldy monuments up the Nile, across the Mediterranean, and into the heart of Rome. This trend began with Augustus, who oversaw the transportation of the first two rediscovered obelisks shortly after his conquest. He placed the monuments in prominent locations and sought to use their native Egyptian symbolism—evoking the sun, kingship, and divinity—as propaganda to help legitimize and later deify his newly-established seat of emperor. In this thesis, I not only argue that Augustus utilized obelisks in much the same way the pharaohs of old once did, but also posit that his actions cemented the obelisk as a fixture of the Classical architectural landscape and, by extension, the early modern architectural landscape as well. Following Augustus’ example, many succeeding Roman emperors, later popes, and other early-modern leaders used the form of the obelisk to secure their own power and divinity. The obelisk’s continued usage in Europe and later in America led to the creation of arguably the most famous obelisk in the modern world: the Washington Monument

Functional Differences Within a Guild of Tropical Mammalian Frugivores

Many plants interact with groups of mutualist pollinators and seed dispersers. A key issue for both basic ecology and conservation is whether the different species within these guilds of mutualist animals are functionally equivalent. Comparing the relative effects of sympatric mutualists is important for understanding the evolution of multispecies mutualisms and for predicting mutualism stability in the face of anthropogenic change. However, empirical comparisons of the population-level impacts of mutualist animals on their host plant are rare, particularly for seed dispersal mutualisms in species-rich ecosystems. We compared the influence of three seed-dispersing tropical mammals, lar gibbons (Hylobates lar), sambar deer (Rusa unicolor), and red muntjac deer (Muntiacus muntjak), on the demography of a shared host tree in Thailand, Choerospondias axillaris (Anacardiaceae). Sambar and muntjac dispersed far more C. axillaris seeds than did gibbons. While sambar deposited many seeds under female tree canopies, muntjac were the only disperser to move seeds to open microhabitats, where C. axillaris seed germination, seedling survival, and initial growth are enhanced. Using stage-based population models, we assessed how disperser-specific seed dispersal, variation in the frequency of canopy gap formation, and their interaction influenced the potential population growth of C. axillaris. Large differences in dispersal quantity and small differences in dispersal quality among sambar and gibbons resulted in similar and negligible impacts on the tree\u27s population dynamics. Muntjac, by taking some of the seeds to open microhabitats, are projected to have a greater positive impact on C. axillaris demography than either sambar or gibbons. Model comparisons of population-level species impacts may allow us to predict which ecological interactions are at risk from loss of critical species

Bushmeat Poaching Reduces the Seed Dispersal and Population Growth Rate of a Mammal-Dispersed Tree

Myriad tropical vertebrates are threatened by overharvest. Whether this harvest has indirect effects on nonhunted organisms that interact with the game species is a critical question. Many tropical birds and mammals disperse seeds. Their overhunting in forests can cause zoochorous trees to suffer from reduced seed dispersal. Yet how these reductions in seed dispersal influence tree abundance and population dynamics remains unclear. Reproductive parameters in long-lived organisms often have very low elasticities; indeed the demographic importance of seed dispersal is an open question. We asked how variation in hunting pressure across four national parks with seasonal forest in northern Thailand influenced the relative abundance of gibbons, muntjac deer, and sambar deer, the sole dispersers of seeds of the canopy tree Choerospondias axillaris. We quantified how variation in disperser numbers affected C. axillaris seed dispersal and seedling abundance across the four parks. We then used these data in a structured population model based on vital rates measured in Khao Yai National Park (where poaching pressure is minimal) to explore how variation in illegal hunting pressure might influence C. axillaris population growth and persistence. Densities of the mammals varied strongly across the parks, from relatively high in Khao Yai to essentially zero in Doi Suthep-Pui. Levels of C. axillaris seed dispersal and seedling abundance positively tracked mammal density. If hunting in Khao Yai were to increase to the levels seen in the other parks, C. axillaris population growth rate would decline, but only slightly. Extinction of C. axillaris is a real possibility, but may take many decades. Recent and ongoing extirpations of vertebrates in many tropical forests could be creating an extinction debt for zoochorous trees whose vulnerability is belied by their current abundance

Differences in early developmental rate and yolk conversion efficiency in offspring of trout with alternative life histories

Partial migration, in which some individuals of a population migrate while other individuals remain resident, is generally associated with ontogenetic shifts to better feeding areas or as a response to environmental instability, but its underlying mechanisms remain relatively unknown. Brown trout (Salmo trutta) exhibit partial migration, with some individuals remaining in fresh water (freshwater-resident) while others undertake an anadromous migration, where they spend time at sea before returning to breed in fresh water (migrant). We reared full-sibling groups of offspring from freshwater-resident and anadromous brown trout from the same catchment in the laboratory under common garden conditions to examine potential differences in their early development. Freshwater-resident parents produced eggs that were slower to hatch than those of anadromous parents, but freshwater-resident offspring were quicker to absorb their yolk and reach the stage of exogenous feeding. Their offspring also had a higher conversion efficiency from the egg stage to the start of exogenous feeding (so were larger by the start of the fry stage) than did offspring from anadromous parents despite no difference in standard metabolic rate, maximal metabolic rate, or aerobic scope. Given these differences in early development we discuss how the migration history of the parents might influence the migration probability of the offspring

Bushmeat poaching reduces the seed dispersal and population growth rate of a mammal-dispersed tree.

Abstract. Myriad tropical vertebrates are threatened by overharvest. Whether this harvest has indirect effects on nonhunted organisms that interact with the game species is a critical question. Many tropical birds and mammals disperse seeds. Their overhunting in forests can cause zoochorous trees to suffer from reduced seed dispersal. Yet how these reductions in seed dispersal influence tree abundance and population dynamics remains unclear. Reproductive parameters in long-lived organisms often have very low elasticities; indeed the demographic importance of seed dispersal is an open question. We asked how variation in hunting pressure across four national parks with seasonal forest in northern Thailand influenced the relative abundance of gibbons, muntjac deer, and sambar deer, the sole dispersers of seeds of the canopy tree Choerospondias axillaris. We quantified how variation in disperser numbers affected C. axillaris seed dispersal and seedling abundance across the four parks. We then used these data in a structured population model based on vital rates measured in Khao Yai National Park (where poaching pressure is minimal) to explore how variation in illegal hunting pressure might influence C. axillaris population growth and persistence. Densities of the mammals varied strongly across the parks, from relatively high in Khao Yai to essentially zero in Doi Suthep-Pui. Levels of C. axillaris seed dispersal and seedling abundance positively tracked mammal density. If hunting in Khao Yai were to increase to the levels seen in the other parks, C. axillaris population growth rate would decline, but only slightly. Extinction of C. axillaris is a real possibility, but may take many decades. Recent and ongoing extirpations of vertebrates in many tropical forests could be creating an extinction debt for zoochorous trees whose vulnerability is belied by their current abundance

Patient-Reported Symptom Relief Following Medical Cannabis Consumption

Background: The Releaf AppTM mobile software application (app) data was used to measure self-reported effectiveness and side effects of medical cannabis used under naturalistic conditions.Methods: Between 5/03/2016 and 12/16/2017, 2,830 Releaf AppTM users completed 13,638 individual sessions self-administering medical cannabis and indicated their primary health symptom severity rating on an 11-point (0–10) visual analog scale in real-time prior to and following cannabis consumption, along with experienced side effects.Results: Releaf AppTM responders used cannabis to treat myriad health symptoms, the most frequent relating to pain, anxiety, and depressive conditions. Significant symptom severity reductions were reported for all the symptom categories, with mean reductions between 2.8 and 4.6 points (ds ranged from 1.29–2.39, ps < 0.001). On average, higher pre-dosing symptom levels were associated with greater reported symptom relief, and users treating anxiety or depression-related symptoms reported significantly more relief (ps < 0.001) than users with pain symptoms. Of the 42 possible side effects, users were more likely to indicate and showed a stronger correlation between symptom relief and experiences of positive (94% of sessions) or a context-specific side effects (76%), whereas negative side effects (60%) were associated with lessened, yet still significant symptom relief and were more common among patients treating a depressive symptom relative to patients treating anxiety and pain-related conditions.Conclusion: Patient-managed cannabis use is associated with clinically significant improvements in self-reported symptom relief for treating a wide range of health conditions, along with frequent positive and negative side effects

Understanding feeling “high” and its role in medical cannabis patient outcomes

Introduction: We measure for the first time the associations between subjective patient experiences of feeling “high” and treatment outcomes during real-time Cannabis flower consumption sessions.Methods: Our study uses data from the mobile health app, Releaf App™, through which 1,882 people tracked the effects of Cannabis flower on a multitude of health conditions during 16,480 medical cannabis self-administration sessions recorded between 6/5/2016 and 3/11/2021. Session-level reported information included plant phenotypes, modes of administration, potencies, baseline and post-administration symptom intensity levels, total dose used, and real-time side effect experiences.Results: Patients reported feeling high in 49% of cannabis treatment sessions. Using individual patient-level fixed effects regression models and controlling for plant phenotype, consumption mode, tetrahydrocannabinol (THC) and cannabidiol (CBD) potencies, dose, and starting symptom level, our results show that, as compared to sessions in which individuals did not report feeling high, reporting feeling high was associated with a 7.7% decrease in symptom severity from a mean reduction of −3.82 on a 0 to 10 analog scale (coefficient = −0.295, p < 0.001) with evidence of a 14.4 percentage point increase (p < 0.001) in negative side effect reporting and a 4.4 percentage point (p < 0.01) increase in positive side effect reporting. Tetrahydrocannabinol (THC) levels and dose were the strongest statistical predictors of reporting feeling high, while the use of a vaporizer was the strongest inhibitor of feeling high. In symptom-specific models, the association between feeling high and symptom relief remained for people treating pain (p < 0.001), anxiety (p < 0.001), depression (p < 0.01) and fatigue (p < 0.01), but was insignificant, though still negative, for people treating insomnia. Although gender and pre-app cannabis experience did not appear to affect the relationship between high and symptom relief, the relationship was larger in magnitude and more statistically significant among patients aged 40 or less.Discussion: The study results suggest clinicians and policymakers should be aware that feeling high is associated with improved symptom relief but increased negative side effects, and factors such as mode of consumption, product potency, and dose can be used to adjust treatment outcomes for the individual patient