175 research outputs found
Eulogy to Architecture: The Three-Dimensional Collage City of Nostalgia
In our time of existence on the Earth, human beings have designed and realized beautiful things. As we face the challenges that confront us today, we begin to understand the fragility of humankind’s creations. Many of the world’s cities and buildings lie in ruins, gazed at by tourists, studied by scholars, while more lie buried in the ground for hundreds of years, some never to be rediscovered. Everything around us is an accumulation of knowledge and ideas built upon for centuries, now facing questionable circumstances. Of course, the more recent Aleppo and other Middle Eastern cities have fallen subject to bombings over the past years, now lost forever. Climate change threatens coastal cities around the world; natural disasters unexpectedly take from our grasp things that we have had for centuries. Nothing is for certain. Nothing lasts forever. Every built structure, no matter the value, eventually falls. What if the earth is one day no longer ours? Its livelihood depends on us, and our sustained wars and climatic abuse continue to decay the soil we walk on and the air we breathe. Will humans be forced from the planet that we have forever called home? This project imagines a new world built on the framework of nostalgia. It is a eulogy to architecture, a compilation of fragments of our world to recreate a place once lost. The city is designed as a three-dimensionalization of Rowe’s Collage City so as to create an assemblage of parts that form a whole. Various scales of fragments of earth, ranging from single buildings to neighborhood fabrics, are arranged in a volumetric space. This space is located away from the gravitational pull of the Earth, making it possible to collage fragments vertically as well as horizontally. The city embraces both the beauty and imperfections of the collected places. To call it a utopia is forward, considering that the majority of each of the employed places were not originally designed as utopian; thus one cannot project utopianism upon them simply because they have a diĐerent context. One might question how an organic system of organization could ever be considered utopian, considering the lack of planning. However, if utopianism is based on the perfection of the human itself rather than the environment, this city aims to imbue a sense of nostalgia in each human mind, with the idea that these places are inherently important to us as a species and to our connection to Earth itself. This project is a visual essay about the importance of what humans have created for themselves on the Earth. It is a conceptual idea that aims to transcend fears of loss by giving hope for a new world collaged from existing fragments of built fabric
Age-Friendly Yarmouth Needs Assessment Report
Communities throughout the nation are pursuing new strategies to promote health and quality of life among their residents. In 2014, the Town of Yarmouth joined the Age-Friendly Network through the World Health Organization and embarked on a five-year process to evaluate the community’s age-friendly features, plan for improvements, and implement change. The primary purpose of this report is to describe findings developed as part of the initial needs assessment phase of Yarmouth’s age-friendly initiative
RNA modification landscape of the human mitochondrial tRNA(LYs) regulates protein synthesis
Post-transcriptional RNA modifications play a critical role in the pathogenesis of human mitochondrial disorders, but the mechanisms by which specific modifications affect mitochondrial protein synthesis remain poorly understood. Here we used a quantitative RNA sequencing approach to investigate, at nucleotide resolution, the stoichiometry and methyl modifications of the entire mitochondrial tRNA pool, and establish the relevance to human disease. We discovered that a N-1 -methyladenosine (m(1)A) modification is missing at position 58 in the mitochondrial tRNA(LYs) of patients with the mitochondrial DNA mutation m.8344 A > G associated with MERRF (myoclonus epilepsy, ragged-red fibers). By restoring the modification on the mitochondrial tRNA(LYs), we demonstrated the importance of the m(1)A58 to translation elongation and the stability of selected nascent chains. Our data indicates regulation of post-transcriptional modifications on mitochondrial tRNAs is finely tuned for the control of mitochondrial gene expression. Collectively, our findings provide novel insight into the regulation of mitochondrial tRNAs and reveal greater complexity to the molecular pathogenesis of MERRF.Peer reviewe
Updated Parameters and a New Transmission Spectrum of HD 97658b
Recent years have seen increasing interest in the characterization of sub-Neptune-sized planets because of their prevalence in the Galaxy, contrasted with their absence in our solar system. HD 97658 is one of the brightest stars hosting a planet of this kind, and we present the transmission spectrum of this planet by combining four Hubble Space Telescope transits, 12 Spitzer/IRAC transits, and eight MOST transits of this system. Our transmission spectrum has a higher signal-to-noise ratio than those from previous works, and the result suggests that the slight increase in transit depth from wavelength 1.1–1.7 μm reported in previous works on the transmission spectrum of this planet is likely systematic. Nonetheless, our atmospheric modeling results are inconclusive, as no model provides an excellent match to our data. Nonetheless, we find that atmospheres with high C/O ratios (C/O ≳ 0.8) and metallicities of ≳100× solar metallicity are favored. We combine the mid-transit times from all of the new Spitzer and MOST observations and obtain an updated orbital period of P = 9.489295 ± 0.000005, with a best-fit transit time center at T₀ = 2456361.80690 ± 0.00038 (BJD). No transit timing variations are found in this system. We also present new measurements of the stellar rotation period (34 ± 2 days) and stellar activity cycle (9.6 yr) of the host star HD 97658. Finally, we calculate and rank the Transmission Spectroscopy Metric of all confirmed planets cooler than 1000 K and with sizes between 1 R⊕ and 4 R⊕. We find that at least a third of small planets cooler than 1000 K can be well characterized using James Webb Space Telescope, and of those, HD 97658b is ranked fifth, meaning that it remains a high-priority target for atmospheric characterization
The Vehicle, 1967, Vol. 9 no. 1
Vol. 9, No. 1
Table of Contents
Commentarypage 3
PoofMolly J. Evanspage 4
PreludeMike Baldwinpage 5
UntitledMike Baldwinpage 5
Where is Tomorrow?Paula Bresnanpage 6
Could It Be Or NotMary Hoeggerpage 7
PsalmAnthony Griggspage 7
Where Am I Going?William A. Framepage 8
Out of DarknessMarilyn Henry Hoodpage 9
She CriedMolly J. Evanspage 12
When I MoveAnthony Griggspage 13
Hi Ya, MorningWilliam A. Framepage 13
Summer Twilight ThoughtsSteve Allenpage 14
Too MuchBill Moserpage 16
Ink SketchWilliam A. Framepage 17
No. 1Molly J. Evanspage 18
Youth, So Hated and DamnedJeff Hendrickspage 18
GoneJackie Jaquespage 19
The JesterWilliam A. Framepage 20
ReflectionMike Baldwinpage 20
No. 3Molly J. Evanspage 21
EpitaphBill Moserpage 22
I Take A Long-Out-of-Use BookAnthony Griggspage 23https://thekeep.eiu.edu/vehicle/1016/thumbnail.jp
The Vehicle, 1967, Vol. 9 no. 1
Vol. 9, No. 1
Table of Contents
Commentarypage 3
PoofMolly J. Evanspage 4
PreludeMike Baldwinpage 5
UntitledMike Baldwinpage 5
Where is Tomorrow?Paula Bresnanpage 6
Could It Be Or NotMary Hoeggerpage 7
PsalmAnthony Griggspage 7
Where Am I Going?William A. Framepage 8
Out of DarknessMarilyn Henry Hoodpage 9
She CriedMolly J. Evanspage 12
When I MoveAnthony Griggspage 13
Hi Ya, MorningWilliam A. Framepage 13
Summer Twilight ThoughtsSteve Allenpage 14
Too MuchBill Moserpage 16
Ink SketchWilliam A. Framepage 17
No. 1Molly J. Evanspage 18
Youth, So Hated and DamnedJeff Hendrickspage 18
GoneJackie Jaquespage 19
The JesterWilliam A. Framepage 20
ReflectionMike Baldwinpage 20
No. 3Molly J. Evanspage 21
EpitaphBill Moserpage 22
I Take A Long-Out-of-Use BookAnthony Griggspage 23https://thekeep.eiu.edu/vehicle/1016/thumbnail.jp
Nanoanalytical Electron Microscopy Reveals a Sequential Mineralization Process Involving Carbonate-Containing Amorphous Precursors
A direct observation and an in-depth characterization of the steps by which bone mineral nucleates and grows in the extracellular matrix during the earliest stages of maturation, using relevant biomineralization models as they grow into mature bone mineral, is an important research goal. To better understand the process of bone mineralization in the extracellular matrix, we used nanoanalytical electron microscopy techniques to examine an in vitro model of bone formation. This study demonstrates the presence of three dominant CaP structures in the mineralizing osteoblast cultures: <80 nm dense granules with a low calcium to phosphate ratio (Ca/P) and crystalline domains; calcium phosphate needles emanating from a focus: “needle-like globules” (100–300 nm in diameter) and mature mineral, both with statistically higher Ca/P compared to that of the dense granules. Many of the submicron granules and globules were interspersed around fibrillar structures containing nitrogen, which are most likely the signature of the organic phase. With high spatial resolution electron energy loss spectroscopy (EELS) mapping, spatially resolved maps were acquired showing the distribution of carbonate within each mineral structure. The carbonate was located in the middle of the granules, which suggested the nucleation of the younger mineral starts with a carbonate-containing precursor and that this precursor may act as seed for growth into larger, submicron-sized, needle-like globules of hydroxyapatite with a different stoichiometry. Application of analytical electron microscopy has important implications in deciphering both how normal bone forms and in understanding pathological mineralization
Emulating Natural Disturbances for Declining Late- Successional Species: A Case Study of the Consequences for Cerulean Warblers (Setophaga cerulea)
Forest cover in the eastern United States has increased over the past century and while some late-successional species have benefited from this process as expected, others have experienced population declines. These declines may be in part related to contemporary reductions in small-scale forest interior disturbances such as fire, windthrow, and treefalls. To mitigate the negative impacts of disturbance alteration and suppression on some late-successional species, strategies that emulate natural disturbance regimes are often advocated, but large-scale evaluations of these practices are rare. Here, we assessed the consequences of experimental disturbance (using partial timber harvest) on a severely declining late-successional species, the cerulean warbler (Setophaga cerulea), across the core of its breeding range in the Appalachian Mountains. We measured numerical (density), physiological (body condition), and demographic (age structure and reproduction) responses to three levels of disturbance and explored the potential impacts of disturbance on source-sink dynamics. Breeding densities of warblers increased one to four years after all canopy disturbances (vs. controls) and males occupying territories on treatment plots were in better condition than those on control plots. However, these beneficial effects of disturbance did not correspond to improvements in reproduction; nest success was lower on all treatment plots than on control plots in the southern region and marginally lower on light disturbance plots in the northern region. Our data suggest that only habitats in the southern region acted as sources, and interior disturbances in this region have the potential to create ecological traps at a local scale, but sources when viewed at broader scales. Thus, cerulean warblers would likely benefit from management that strikes a landscape-level balance between emulating natural disturbances in order to attract individuals into areas where current structure is inappropriate, and limiting anthropogenic disturbance in forests that already possess appropriate structural attributes in order to maintain maximum productivity
Emulating Natural Disturbances for Declining Late-Successional Species: A Case Study of the Consequences for Cerulean Warblers (Setophaga cerulea)
Forest cover in the eastern United States has increased over the past century and while some late-successional species have benefited from this process as expected, others have experienced population declines. These declines may be in part related to contemporary reductions in small-scale forest interior disturbances such as fire, windthrow, and treefalls. To mitigate the negative impacts of disturbance alteration and suppression on some late-successional species, strategies that emulate natural disturbance regimes are often advocated, but large-scale evaluations of these practices are rare. Here, we assessed the consequences of experimental disturbance (using partial timber harvest) on a severely declining latesuccessional species, the cerulean warbler (Setophaga cerulea), across the core of its breeding range in the Appalachian Mountains. We measured numerical (density), physiological (body condition), and demographic (age structure and reproduction) responses to three levels of disturbance and explored the potential impacts of disturbance on source-sink dynamics. Breeding densities of warblers increased one to four years after all canopy disturbances (vs. controls) and males occupying territories on treatment plots were in better condition than those on control plots. However, these beneficial effects of disturbance did not correspond to improvements in reproduction; nest success was lower on all treatment plots than on control plots in the southern region and marginally lower on light disturbance plots in the northern region. Our data suggest that only habitats in the southern region acted as sources, and interior disturbances in this region have the potential to create ecological traps at a local scale, but sources when viewed at broader scales. Thus, cerulean warblers would likely benefit from management that strikes a landscape-level balance between emulating natural disturbances in order to attract individuals into areas where current structure is inappropriate, and limiting anthropogenic disturbance in forests that already possess appropriate structural attributes in order to maintain maximum productivity
Respiratory sequelae of COVID-19: pulmonary and extrapulmonary origins, and approaches to clinical care and rehabilitation
Although the exact prevalence of post-COVID-19 condition (also known as long COVID) is unknown, more than a third of patients with COVID-19 develop symptoms that persist for more than 3 months after SARS-CoV-2 infection. These sequelae are highly heterogeneous in nature and adversely affect multiple biological systems, although breathlessness is a frequently cited symptom. Specific pulmonary sequelae, including pulmonary fibrosis and thromboembolic disease, need careful assessment and might require particular investigations and treatments. COVID-19 outcomes in people with pre-existing respiratory conditions vary according to the nature and severity of the respiratory disease and how well it is controlled. Extrapulmonary complications such as reduced exercise tolerance and frailty might contribute to breathlessness in post-COVID-19 condition. Non-pharmacological therapeutic options, including adapted pulmonary rehabilitation programmes and physiotherapy techniques for breathing management, might help to attenuate breathlessness in people with post-COVID-19 condition. Further research is needed to understand the origins and course of respiratory symptoms and to develop effective therapeutic and rehabilitative strategies
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