33,744 research outputs found
Traces and shards of self-injury: Strange accounting with “Author X”
No full textIn this strange account autoethnography, three or four authors explore their lived experiences with self-injury. Strange accounting is both a post-modern style of text, and a method for keeping identities concealed when risks and secrets are in play. Author X, a post-modern place-keeper for an anonymous author who may or may not have contributed to this manuscript, introduces a new dimension and layer of concealment. With Author X in-play and under erasure, the reader will never be sure if there were three or four authors on this manuscript. Through strange accounting, a post-structuralist/postmodernist frame will be applied to understanding the self-injury experience. We frame self-injury as a social practice and, for some, an everyday norm, while remaining acutely aware of the stigma surrounding the topic of self-injury. Each of us, coupled with Author X, provide the others cover to trace stories of self-injury through the literature, our flesh, and our lives
Computational protocol for the identification of X-linked genes contributing to X chromosome upregulation from RNA-sequencing datasets
No full textSummary: The X chromosome/autosome ratio has been widely used to profile XCU at the chromosomal level. However, this approach overlooks features of inside genes. Here, we present a computational protocol for the identification of X-linked genes contributing to X chromosome upregulation from RNA-sequencing datasets. We describe steps for selecting data, preparing software, processing data, and data analysis. This protocol quantifies the contribution value and contribution increment of each X-linked gene to XCU.For complete details on the use and execution of this protocol, please refer to Lyu et al. (2022).1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics
Environmental cost and impacts of chemicals used in agriculture: An integration of emergy and Life Cycle Assessment
No full textModern intensive agriculture worldwide is generating increasing environmental pressure, which prevents its sustainable development. A number of agricultural sustainability assessment approaches and methodological frameworks have been developed by research worldwide to assess the environmental costs and impacts of resources used in agricultural production. A joint use of Life Cycle Assessment (LCA, to assess a process' performance and environmental impacts) and Emergy Accounting (EMA, to estimate environmental support to resource generation and provision) is proposed in this study. The goal is not only to ascertain the environmental ‘cost’ of production of selected chemical resources used in agricultural processes, but also to develop a reliable calculation procedure capable to integrate the two approaches (LCA and EMA), while considering their different allocation algebra and space-time scales of application. Specifically, the UEVs of glyphosate and urea, which are respectively the most used herbicide and nitrogen fertilizer used in worldwide agriculture, are calculated, yielding values of 2.47E+13 sej/kg and 7.07E+12 sej/kg, respectively. In order to do so, UEVs of intermediate process chemicals such as ammonia, acetic anhydride, chlorine gas, formaldehyde, phosphorous chloride, and sodium hydroxide have also been calculated or updated, thus providing at the same time a procedure and a set of values potentially useful for future studies. The LCA impacts of agro-chemicals in China are compared to worldwide averages from the Ecoinvent database, and the UEVs for several chemicals are also compared to previous estimates from published emergy literature
Design, construction, and control of curves and surfaces via deployable mechanisms
No full textThere has been an increasing interest in design and construction of deployable mechanisms (DMs) with multiple degrees of freedom (DOFs). This paper summarizes a family of deployable mechanisms that approximates a series of curves and surfaces using the polygonal approximation technique. These mechanisms are obtained by linking the two- and three-dimensional deployable units, which are constitutive of Sarrus and scissor linkages. Multiple unit mechanisms with varying sizes are assembled and alter their shape within a different family of parameterized curves and surfaces. A systematic methodology for polygonal approximation method is presented. Quadratic, semi-cubic, cubic, quartic and sextic curve boundaries, and quadric surfaces are approximated and controlled. Computer-aided design (CAD) models and kinematic simulations elucidate the mechanism's ability to approximate a set of curves and surfaces
Appendix_1,_2_and_3 – Supplemental material for Analyzing the Economic Sustainability of Tourism Development: Evidence from Hong Kong
No full textSupplemental material, Appendix_1,_2_and_3 for Analyzing the Economic Sustainability of Tourism Development: Evidence from Hong Kong by Hanqin Qiu, Daisy X. F. Fan, Jiaying Lyu, Pearl M. C. Lin and Carson L. Jenkins in Journal of Hospitality & Tourism Research</p
An integrative conservation and management strategy based on biological and cultural diversity assessment: A case study of Miaoling mountainous region, China
No full textThe Miaoling mountainous region, a typical karst landscape in Southwest China, is rich in biological resources and possesses an indigenous cultural heritage. However, ecological degradation and the encroachment of external cultures present significant threats to these areas, creating dual challenges to their biological and cultural integrity. To effectively protect the bio-cultural features in the Miaoling region, this study proposes a strategy for establishing a conservation framework based on the evaluation of bio-cultural diversity for protection. First, the four indicators of biodiversity and five indicators of cultural diversity were used to assess the value of bio-cultural diversity. Next, the Zonation model was integrated to identify priority zones. Finally, using these priority zones, a ’source − corridor − network’ strategy was developed. The results have revealed that nearly half of the region exhibits a lack of coordination between bio-cultural diversity. The priority conservation zones for bio-cultural diversity, which cover a total area of 2,286.76 km2, are located within small watershed and agroforestry ecosystems, displaying a fragmented distribution. Also, the conservation network encompasses 29 primary corridors, 76 secondary corridors, and 25 nodes. Based on that, a multi-stakeholder adaptive management framework has been proposed, emphasizing policy and financial support, community participation, and collaboration to integrate ecological protection with sustainable development. This study highlights the potential of bio-cultural diversity assessments in identifying priority zones and guiding strategic conservation planning in the karst mountainous regions
Towards Operational Cost Minimization in Hybrid Clouds for Dynamic Resource Provisioning with Delay-Aware Optimization
No full textRecently, hybrid cloud computing paradigm has be widely advocated as a promising solution for Software-as-a-Service (SaaS) providers to effectively handle the dynamic user requests. With such a paradigm, the SaaS providers can extend their local services into the public clouds seamlessly so that the dynamic user request workload to a SaaS can be elegantly processed with both the local servers and the rented computing capacity in the public cloud. However, although it is suggested that a hybrid cloud may save cost compared with building a powerful private cloud, considerable renting cost and communication cost are still introduced in such a paradigm. How to optimize such operational cost becomes one major concern for the SaaS providers to adopt the hybrid cloud computing paradigm. However, this critical problem remains unanswered in the current state of the art. In this paper, we focus on optimizing the operational cost for the hybrid cloud paradigm by theoretically analyzing the problem with a Lyapunov optimization framework. This allows us to design an online dynamic provision algorithm. In this way, our approach can address the real-world challenges where no a priori information of public cloud renting prices is available and the future probability distribution of user requests is unknown. We then conduct extensive experimental study based on a set of real-world data, and the results confirm that our algorithm can work effectively in reducing the operational cost
X-ray patterns for new compound K2BaCa(PO4)2
No full text<p>X-ray patterns for new compound K2BaCa(PO4)2</p>
Panophrys daiyunensis Lyu, Wang & Wang 2021, sp. nov.
No full textPanophrys daiyunensis Lyu, Wang & Wang sp. nov. Chresonymy. Megophrys sp18— Liu et al. 2018 Holotype: SYS a001733 (Fig. 3 A–D), adult male, collected by Run-Lin Li on 22 May 2012 from Daiyun Village (25.6362°N, 118.2139°E; ca 1040 m a.s.l.), Daiyun Mountain Nature Reserve, Dehua County, Quanzhou City, Fujian Province, PR China. Paratypes: Three adult males (SYS a001730/ CIB 116075, SYS a001731–1732), collected at the same time from the same locality as the holotype; one adult female (SYS a006002), collected by Jian Wang on 26 June 2017 from the same locality as the holotype; two adult females (SYS a006000, 6003), collected by Zhi-Tong Lyu, Ying-Yong Wang, and Ya-Qiong Huang on 26 June 2017 from Jiuxianshan (25.7101°N, 118.1200°E; ca 1200 m a.s.l.), Daiyun Mountain Nature Reserve. Etymology. The specific epithet daiyunensis refers to the type locality of the new species, the Daiyun Mountain Nature Reserve. Common names. Daiyun Horned Toad (in English) / Dài Yún Jiǎo Chán (ăủfflḃ in Chinese) Diagnosis. (1) body size small, with SVL 27.6–28.7 mm (n = 4) in adult males and 33.7–35.6 mm (n = 3) in adult females; (2) tympanum edge distinct, upper margin in contact with supratympanic fold, TD/ED 0.45–0.53; (3) vomerine teeth present; (4) margin of tongue not notched; (5) heels overlapping or meeting; (6) tibio-tarsal articulation reaching just posterior to eye; (7) TIB/SVL 0.36–0.42, FTL/SVL 0.51–0.60; (8) narrow lateral fringes on fingers present, one subarticular tubercle present at the base of each finger, relative finger lengths I = II 31 mm in males or> 38 mm in females, namely P. angka, P. baolongensis, P. binchuanensis, P. binlingensis, P. brachykolos, P. caobangensis, P. caudoprocta, P. daweimontis, P. fansipanensis, P. hoanglienensis, P. insularis, P. jiangi, P. jingdongensis, P. jinggangensis, P. leishanensis, P. liboensis, P. lini, P. mirabilis, P. minor, P. nankunensis, P. obesa, P. omeimontis, P. palpebralespinosa, P. sangzhiensis, P. shuichengensis, P. spinata, P. tuberogranulatus, P. wugongensis, P. wuliangshanensis, P. wushanensis, P. xiangnanensis, and P. yangmingensis. Panophrys daiyunensis sp. nov. can be distinguished from the remaining nine congeners by the following characteristics: SVL 27.6–28.7 mm in males and 33.7–35.6 mm in females (vs SVL 30.2–39.3 mm in males in P. dongguanensis; vs SVL 30.4–33.9 mm in males in P. jiulianensis; vs SVL 30.1–30.8 mm in males and 36.3 mm in female in P. mufumontana; vs SVL 30.5–37.3 mm in males in P. nanlingensis; vs SVL 30.3–33.7 mm in males and 37.6 mm in female in P. shunhuangensis); horn-like tubercle at upper eyelid small (vs large in P. acuta); vomerine teeth present (vs absent in P. acuta, P. cheni, P. mufumontana, and P. shunhuangensis); tongue not notched (vs notched in P. cheni, P. jiulianensis, P. nanlingensis, and P. rubrimera); heels overlapping or meeting (vs not meeting in P. acuta and P. dongguanensis); narrow lateral fringes present on toes (vs wide in P. cheni; vs absent in P. dongguanensis, P. jiulianensis, and P. shunhuangensis); rudimentary web present between toes (vs absent in P. rubrimera). Description of holotype. SYS a001733, adult male. Habitus small, SVL 28.7 mm; head width shorter than head length, HDW/HDL 0.97; snout rounded in dorsal view, projecting, sloping posteriorly to mouth in profile, protruding well beyond margin of lower jaw; dorsal surface of head flat; eye small, ED/HDL 0.39; nostril obliquely ovoid; pupil vertical; canthus rostralis well developed, curved above nostril; loreal region sloping; internasal distance larger than interorbital distance; tympanum distinct, small, upper margin in contact with supratympanic fold; choanae large ovoid, situated at base of maxilla; vomerine teeth present; margin of tongue not notched. Lower arm length 0.23 of SVL and hand length 0.24 of SVL; relative finger lengths I = II <IV <III; tip of finger rounded, slightly dilated; one subarticular tubercle present at base of each finger; fingers without webs, narrow lateral fringes present on fingers; outer and inner metacarpal tubercles distinct, inner metacarpal tubercle observably enlarged. Shank length 0.46 of SVL and foot 0.63 of SVL; tibio-tarsal articulation reaches posterior margin of eye when hindlimb stretched alongside body; heels overlapping when hindlimbs held at right angles to body; relative toe lengths I <II <V <III <IV; tips of toes rounded, slightly dilated; one subarticular tubercle present at base of each toe; rudimentary web and lateral fringes present between toes; tarsal folds absent; inner metatarsal tubercle long, ovoid, and outer metatarsal tubercle absent. Dorsal body’s skin texture rough with densely-distributed granules and scattered raised tubercles; “X” shaped skin ridge on center of dorsum; dorsolateral skin ridges present; a small horn-like tubercle present at edge of upper eyelid; supratympanic fold distinct, curving from posterior corner of eye, posteroventrally to above insertion of arm. Ventral surface of throat smooth; rounded, densely-distributed tubercles present on ventral chest and belly; raised, densely-distributed tubercles on ventral thigh; pectoral gland large, closer to axilla; single large femoral gland on posterior surface of thigh. Coloration of holotype. Dorsal surface yellowish brown; a dark incomplete triangular marking with light edge between eyes; a dark “X” shaped marking with light edge on center of dorsum; dark patches on dorsal upper arms and hindlimbs; dark stripes below eyes and at lateral tip of snout; iris reddish brown. Ventral surface dark brown; three dark longitudinal stripes on the throat, middle one distinctly shorter; red spots on the chest and densely-distributed tiny white spots on belly and ventral thigh; palms and soles purplish brown, tips of digits greyish white, metacarpal and metatarsal tubercles orange red; pectoral glands and femoral glands white. Variation. Measurements of type series are given in Table 4. All specimens were similar in morphology. Females are larger than males. SYS a006000 (Fig. 3E, F) has reddish brown dorsal surface with “)(”-shaped marking and gray ventral surface with unclear marking. Without “X” or “)(”-shaped marking on center of dorsum in SYS a006002. Distribution and ecology. Currently, Panophrys daiyunensis sp. nov. is known from Daiyun Mountain Nature Reserve (1000–1250 m a.s.l.) and Xiamen City (ca 400 m a.s.l.) of southern Fujian. This toad inhabits streams surrounded by moist subtropical secondary evergreen broadleaved forests, and is common from May to June. Males call actively on leaves of bushes or rocks near streams during this period. All females found in June were gravid with oocytes but tadpoles have not been found.Published as part of Lyu, Zhi-Tong, Zeng, Zhao-Chi, Wang, Jian, Liu, Zu-Yao, Huang, Ya-Qiong, Li, Wen-Zhou & Wang, Ying-Yong, 2021, Four new species of Panophrys (Anura, Megophryidae) from eastern China, with discussion on the recognition of Panophrys as a distinct genus, pp. 9-40 in Zootaxa 4927 (1) on pages 21-23, DOI: 10.11646/zootaxa.4927.1.2, http://zenodo.org/record/453384
A note on the category of c-spaces
No full textWe prove that the category of c-spaces with continuous maps is not cartesianclosed. As a corollary the category of locally finitary compact spaces withcontinuous maps is also not cartesian closed.Comment: 5 page
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