Auswahl der wissenschaftlichen Literatur zum Thema „Pacific Northwest District“
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Zeitschriftenartikel zum Thema "Pacific Northwest District"
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Bull, Evelyn L., Jack Ward Thomas und Kirk Horn. „Snag Management on National Forests in the Pacific Northwest—1984“. Western Journal of Applied Forestry 1, Nr. 2 (01.04.1986): 41–43. http://dx.doi.org/10.1093/wjaf/1.2.41.
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Abstract A questionnaire was sent to each Ranger District in the Pacific North-west Region of the USDA Forest Service to get information on present snag-management programs. Ninety-five percent of the responding Ranger Districts left snags at levels that ranged from 0.15 snags/ha (0 06/ac) to 12-15 snags/ha (5-6/ac) on all forested lands. Live trees were intentionally left as future snags on 93% of the Ranger Districts. Live trees were killed to create snags on 41% of the Ranger Districts. Management recommendations are made as to the kind of snags to leave and methods of maintaining them. West. J. Appl. For. 1:41-43, April 1986
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KULIĆ, VLADIMIR. „The Builders of Socialism: Eastern Europe's Cities in Recent Historiography“. Contemporary European History 26, Nr. 3 (21.11.2016): 545–60. http://dx.doi.org/10.1017/s0960777316000497.
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When the angry homeowners of a popular Seattle neighbourhood recently decided to rise in protest against the impending changes in the urban development code, they claimed that their chief goal was to protect the district from turning into an ‘Eastern Bloc city’. If the City Council allowed the new legislation to pass, reportedThe Seattle Times, Seattle was ‘in danger of becoming the Soviet Warsaw or East Berlin of the Pacific Northwest’. ‘I've been to Poland’, one protester said, ‘I know what they [Polish cities] look like. They're bleak. They're dead.’
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Jiang, Wei, Wenyan Li, Qianqian Li, Aiqin Liu, Wenyu Huang, Qian Hao und Huihong Zhai. „Validation of Asia-Pacific Colorectal Screening Score for Asymptomatic Participants and Outpatients in Northwest District of China“. Digestion 101, Nr. 4 (14.06.2019): 484–91. http://dx.doi.org/10.1159/000501073.
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Lü, Qingtian, Zhendong Liu, Jiayong Yan, Jingtian Tang, Mingan Wu und Xiao Xiao. „Crustal-scale structure and deformation of Lu-Zong ore district: Joint interpretation from integrated geophysical data“. Interpretation 3, Nr. 2 (01.05.2015): SL39—SL61. http://dx.doi.org/10.1190/int-2014-0211.1.
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We have studied five intersecting integrated geophysical profiles for the 3D crustal structure of the Lu (Lujiang)-Zong (Zongyang) ore district to obtain a better understanding of the metallogenesis and provide in-depth information for deep mineral targeting. The profiles, totaling more than 300 km, have reflection seismics and magnetotelluric sounding. Regional gravity surveys were also integrated into this study. New discoveries were obtained regarding the upper crustal structure and deformation based on the integrated analysis of these data. The Lu-Zong ore district consists of four major crustal blocks. They are the Shaxi uplift, Qianshan-Kongcheng Depression (QKD) in the west, Lu-Zong volcanic basin, and the Along-River uplift in the east. The north–south crustal elements show the northward “step-type” uplift, juxtaposed by two steplike faults, the west–northwest/east–southeast-trending Tangjiayuan-Zhuanqiao Fault and the Lujiang-Huangguzha-Tongling Detachment (LHTD) Fault. The Lu-Zong volcanic basin presents a nonsymmetrical shape with four inward-dipping boundary faults. The northern and eastern boundary faults (BF2 and LHTD) are deep faults, which control the development and evolution of the Lu-Zong volcanic basin. There are three west–northwest/east–southeast-trending faults and six northeast–southwest-trending faults cutting over the ore district. From north to south, they are the LHTD Fault, Tangjiayuan-Zhuanqiao Fault, and Yijing-Taojiaxiang Fault (BF3); from west to east, the six faults are the Tan-Lu, Chuhe, Luohe-Quekou, Zongyang-Huangtun, Taojiawan-Shijiawan, and Changjiang Thrust Fault (CTF). The formation and evolution of the ore-district are mainly affected by the Yanshanian intracontinental orogeny, and they experience the Middle to Late Jurassic compression and subsequent Cretaceous extension, possibly due to the paleo-Pacific northwest-trending subduction. Our studies determined that the CTF is a thrust system in nature and the LHTD is a southwest-dipping detachment. Two Jurassic basins were found, surrounding the northeast and southeast of Lu-Zong volcanics, which may be due to the product of postcollision extension of Indosinian orogeny during the middle and early Late Triassic.
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Rodela, Katherine C., und Claudia Rodriguez-Mojica. „Equity Leadership Informed by Community Cultural Wealth: Counterstories of Latinx School Administrators“. Educational Administration Quarterly 56, Nr. 2 (06.05.2019): 289–320. http://dx.doi.org/10.1177/0013161x19847513.
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Purpose: The purpose of this article is (a) to analyze how Latinx school administrators draw on their Community Cultural Wealth to inform their leadership for educational equity and (b) to examine how they navigate varying equity initiatives and beliefs in rapidly diversifying districts. Research Method: This study employs Latina/o Critical Race Theory counterstorytelling methodology to explore four Latinx school administrators’ experiences across three districts in the Pacific Northwest. Data sources include semistructured interviews, observations, and local demographic data. Findings: Latinx administrators’ counterstories revealed complex ways their childhoods, educational histories, and current equity leadership were informed by their Community Cultural Wealth as bilingual people of color. They also faced White dominant administrative spaces, where their equity visions often conflicted with district equity initiatives. Sometimes these differences led to tensions with district officials or constrained their advocacy. Conclusion and Implications: Our findings affirm existing research on the potential equity and culturally responsive leadership contributions of Latinx educational leaders. Our article also raises questions to the field about how we understand social justice leadership, and support current and aspiring leaders of color who seek to promote equity in their work. Our analysis brought forth a particular geographical region as a key in influencing our research participants’ experiences. More research is needed to understand how to support and sustain leaders of color in diverse regional contexts, as they seek to combat educational inequities for children and young adults facing similar injustices they faced themselves as students of color.
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Crook, Stephen ES, Arielle Levine und David Lopez-Carr. „Perceptions and Application of the Ecosystem Services Approach among Pacific Northwest National Forest Managers“. Sustainability 13, Nr. 3 (26.01.2021): 1259. http://dx.doi.org/10.3390/su13031259.
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The ecosystem services concept has emerged as a guiding principle in natural resource management over the past two decades, and an ecosystem services approach to management is currently mandated as a core element of United States National Forest planning. However, the concept of ecosystem services has been interpreted and operationalized in a variety of ways, leaving a pronounced knowledge gap regarding how it is understood and implemented in different contexts. To better understand the conceptualization and implementation of the concept within United States National Forests, semi-structured interviews with planners and managers of the Pacific Northwest Region were conducted at the region, forest, and ranger district levels, addressing the following topics: (1) how has the ecosystem services concept been perceived by managers and planners?; (2) what are the perceived key ecosystem services offered by National Forest lands?; (3) how has the concept been applied at multiple spatial scales?; and (4) what are perceived challenges or opportunities related to applying the concept in the National Forest context? Results indicate that although participants had a high level of understanding of the ecosystem services concept, there was not a clear, widely adopted approach to considering ecosystem services in management. Through qualitative analysis, three general perspectives arose: one employed the concept to fulfill regulatory requirements at the National Forest scale, a second engaged with ecosystem services to improve participatory planning at the project scale, and a third, business as usual perspective, considered ecosystem services as new language for describing longstanding National Forest priorities. These results draw attention to the challenges of implementing an ecosystem services-based approach in the United States National Forest context and the continued need for the development of management-relevant methods for describing and quantifying ecosystem services.
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Manalo, Pearlyn C., Akira Imai, Leo L. Subang, Mervin C. de los Santos, Kyoka Yanagi, Ryohei Takahashi und Nigel J. F. Blamey. „Mineralization of the Northwest Quartz-Pyrite-Gold Veins: Implications for Multiple Mineralization Events at Lepanto, Mankayan Mineral District, Northern Luzon, Philippines“. Economic Geology 113, Nr. 7 (01.11.2018): 1609–26. http://dx.doi.org/10.5382/econgeo.2018.4606.
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Abstract The Northwest quartz-pyrite-gold veins are situated 500 m east of the Lepanto fault in Mankayan, Luzon, Philippines. Most vein mineralization is hosted by the Lepanto metavolcanic basement rocks at an elevation between 700 and 1,050 m. The earliest stage, stage 1, is characterized by sphalerite + chalcopyrite + pyrite ± magnetite veins cutting the host rocks that were altered to chlorite + illite + epidote. Precious metal deposition started in stage 2 as electrum, native gold, and gold-silver tellurides deposited with pyrite, quartz, and carbonate. Deposition of gold and silver tellurides continued in stage 3a with abundant pyrite and tennantite-tetrahedrite solid solution intergrown with chalcopyrite, bornite, and minor sphalerite. The stage 3a veins and host-rock alteration are characterized by abundant muscovite and quartz, while the stage 3b veins and alteration consist of quartz, pyrophyllite, alunite, and dickite. Enargite and luzonite are the dominant sulfide minerals in stage 4, which are either disseminated in silicified host rock or within wide quartz veins. Lesser amounts of quartz and abundant pyrite with inclusions of enargite and luzonite were precipitated in stage 5. Microthermometry on fluid inclusions in quartz of stages 2, 3a, and 4 indicates boiling of the hydrothermal fluids. Bulk gas analysis on fluid inclusions in quartz shows that the stage 2 and 4 fluids had components derived from basaltic and andesitic magma, respectively. Fluids that formed stage 4 quartz were more diluted by meteoric water than the fluids that formed the stage 2 veins. Radiometric 40Ar/39Ar dating on alunite separated from the stage 3b advanced argillic alteration zone yielded 2.2 ± 0.1 Ma. Sulfur isotope compositions of the Northwest quartz-pyrite-gold deposit reveal a bulk δ34S of approximately 5‰, similar to the calculated value for the adjacent Far Southeast porphyry deposit. Calculated oxygen and hydrogen isotope ratios of the fluids of the Northwest quartz-pyrite-gold deposit stage 3b dickites are similar to those that formed the illite alteration in the Far Southeast porphyry deposit but are higher in δ18O when compared to the fluids that formed the kandites in the Lepanto enargite deposit. The northward cooling of mineralizing fluids previously reported in the Lepanto enargite deposit is not consistent with the mineralogic indications in the Northwest quartz-pyrite-gold deposit. These data indicate multiple mineralization events in the Mankayan district, which is one of the largest mineral districts in the western Pacific.
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Sun, Changyou, Jean M. Daniels und Kate C. Marcille. „Common integrating factor in softwood log exports from the United States“. Canadian Journal of Forest Research 50, Nr. 5 (Mai 2020): 447–56. http://dx.doi.org/10.1139/cjfr-2019-0321.
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Softwood logs comprise a large portion of forest product exports from the United States. Most of these exports have occurred between the Pacific Northwest region of the United States and several Asian countries. In this study, the extent and degree of market integration of softwood log exports from 1996 to 2018 are examined by co-integration analyses and permanent–transitory decomposition. Softwood log exports to Japan and South Korea appear to be in the same economic market and show a high degree of integration, while trade between the United States and China has evolved more independently. A detailed analysis is conducted on five prices related to Japan and South Korea with full-time coverage, and one common integrating factor is found and estimated. The price of export from the Columbia-Snake Customs District to Japan is identified as the driving force. Price responses to market shocks usually occur within four months. These findings have implications for government agencies and participants in the market of softwood log trade.
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Wolf, Kathleen L. „Community Context and Strip Mall Retail“. Transportation Research Record: Journal of the Transportation Research Board 2060, Nr. 1 (Januar 2008): 95–103. http://dx.doi.org/10.3141/2060-11.
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Strip malls (or mini-malls) are a common land use, historically promoted by U.S. zoning practices that concentrate retail and commercial development in a narrow band along urban arterials and major streets. They are an entry-level retail niche offering opportunity for independent, start-up businesses that serve a limited market. Communities have begun to question land uses that enable efficient ingress and egress of vehicles in retail and commercial districts but give little attention to multimodal motility. Some communities are redeveloping small mall zones on the basis of “complete street” principles, expanding landscape plantings, and redeveloping the character of a business district. This study assessed public response to one element of small mall (re)development: landscape and vegetation. Prior studies indicated that consumer behavior is positively associated with city trees (urban forest) on multiple cognitive and behavioral dimensions. In mail surveys depicting varied roadside treatments, residents of three major cities in the Pacific Northwest were asked to indicate preferences and perceptions about proposed changes. Survey stimulus materials addressed visual quality, retail perceptions, patronage behavior, wayfinding, and willingness to pay for goods and services. Combined econometrics and psychometrics indicated that respondents prefer landscaped roadsides and report positive retail behavior, such as willingness to pay 8.8% more for goods and services in well-landscaped malls. Redevelopment and roadside management guidelines are proposed based on the research results, with implications for the economics of local communities.
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McDougall, A. K., und Lisa Phillips. „The Antecedents to Cascadia as a Cross Border Region“. Canadian Political Science Review 2, Nr. 2 (18.07.2008): 6–20. http://dx.doi.org/10.24124/c677/200856.
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For the short period from 1834 to 1863, the Pacific Northwest, centered in Cascadia, was an entity in the global economy. The region became a coherent economic unit under the management of the Columbia District of the Hudson’s Bay Company, which developed an economic hinterland, a coherent economic and trade strategy, an aggressive marketing agenda and control of marketable resources in the region. It strategically built a resource base to meet market needs and played an extensive entrepreneurial function, for example selling Finish boots in California in 1840 and Puget Sound grain in western Siberia by 1843. This paper traces the broad outline of the rise and fall of this economic empire and draws attention to the role of state power, manifested at the levels of identity and legal construction, in ending the coherence of that regional entity. In a time when the logic of Cascadia on environmental and regional grounds is apparent to many, this paper highlights how the border and the attendant identities of political actors divided and ended its coherence. Its demise may offer insight into the forces which bolster the border which divides it today.
Dissertationen zum Thema "Pacific Northwest District"
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Flynn, Ann Rene'. „Positionality of Paraeducators: A Phenomenological Study in a Public School District in the Pacific Northwest“. Antioch University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1604220553250944.
Der volle Inhalt der QuelleBücher zum Thema "Pacific Northwest District"
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McDonald, James Andrew. People of the Robin: The Tsimshian of Kitsumkalum : a resource book for the Kitsumkalum Education Committee and the Coast Mountain School District 82 (Terrace). [Edmonton]: CCI Press, 2003.
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Moody, John. Oral history interviews: John Moody. Denver, Colo: Bureau of Reclamation, Oral History Program, 2013.
Den vollen Inhalt der Quelle findenKonferenzberichte zum Thema "Pacific Northwest District"
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Kintner-Meyer, Michael C. W., Tony B. Nguyen, Chunlian Jin, Patrick J. Balducci, Marcelo A. Elizondo, Vilayanur V. Viswanathan, Yu Zhang und Whitney G. Colella. „Evaluating the Competitiveness of Energy Storage for Mitigating the Stochastic, Variable Attributes of Renewables on the Grid“. In ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/es2012-91482.
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Energy storage has recently attracted significant interest as an enabling technology for integrating stochastic, variable renewable power into the electric grid. To meet the renewable portfolio standards targets imposed by 29 U.S. states and the District of Columbia, electricity production from wind technology has increased significantly. At the same time, wind turbines, like many renewables, produce power in a manner that is stochastic, variable, and non-dispatchable. These attributes introduce challenges to generation scheduling and the provision of ancillary services. To study the impacts of the stochastic variability of wind on regional grid operation and the role that energy storage could play to mitigate these impacts, Pacific Northwest National Laboratory (PNNL) has developed a series of linked, complex techno-economic-environmental models to address two key questions: A) What are the future expanded balancing requirements necessary to accommodate enhanced wind turbine capacity, so as to meet the renewable portfolio standards in 2020? Specific analyses are conducted for the four North American Electric Reliability Corporation (NERC) western subregions. B) What are the most cost-effective technological solutions for providing either fast ramping generation or energy storage to serve these balancing requirements? PNNL applied a stochastic approach to assess the future, expanded balancing requirements for the four western subregions with high wind penetration in 2020. The estimated balancing requirements are quantified for four subregions: Arizona-New Mexico-Southern Nevada (AZ-NM-SNV), California-Mexico (CA-MX), Northwest Power Pool (NWPP), and Rocky Mountain Power Pool (RMPP). Model results indicate that the new balancing requirements will span a spectrum of frequencies, from minute-to-minute variability (intra-hour balancing) to those indicating cycles over several hours (inter-hour balancing). The sharp ramp rates in the intra-hour balancing are of significant concern to grid operators. Consequently, this study focuses on analyzing the intra-hour balancing needs. A detailed, life-cycle cost (LCC) modeling effort was used to assess the cost competitiveness of different technologies to address the future intra-hour balancing requirements. Technological solutions considered include combustion turbines, sodium sulfur (NaS) batteries, lithium ion (Li-ion) batteries, pumped-hydro energy storage (PHES), compressed air energy storage (CAES), flywheels, redox flow batteries, and demand response (DR). Hybrid concepts were also evaluated. For each technology, distinct power and energy capacity requirements are estimated. LCC results for the sole application of intra-hour balancing indicate that the most cost competitive technologies include Na-S batteries, flywheels, and Li-ion assuming future cost reductions. Demand response using smart charging strategies was found to also be cost-competitive with natural gas combustion turbines. This finding is consistent among the four subregions and is generally applicable to other regions.
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Beshears, David L., D. Duncan Earl, Melissa Voss Lapsa, L. Curt Maxey, Jeff D. Muhs, Christina D. Ward und John D. Morris. „Solar Energy, Collected, Concentrated, Transported, and Distributed as Light With No Energy Conversion Via a Hybrid Solar Lighting System“. In ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36096.
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Hybrid solar lighting (HSL) is a technology in which sunlight is collected and distributed via optical fibers into the interior of buildings. Analogous to hybrid electric vehicles that use both batteries and internal combustion engines to power cars, hybrid lighting employs roof-mounted collectors to concentrate sunlight into flexible optical fibers and carry it inside buildings to “hybrid” light fixtures that also contain electric lamps. As the two light sources work in tandem, control systems keep lighting levels constant by dimming the electric lights when sunlight is bright, and turning them up as the sky darkens with weather conditions or nightfall. Data indicate that on a bright, sunny day the power consumption for lighting can be reduced by 50% or more. Today, lighting in U.S. residential and commercial buildings consumes close to 5 quadrillion BTUs of primary energy and one-fifth of all electricity. In commercial buildings, one-quarter of all energy demand is for lighting. With a forecasted doubling of commercial floor space by the year 2020 comes an urgent and growing need to find more efficient ways of lighting our nation’s buildings. Typically, less than 25 percent of the electrical energy consumed for lighting actually produces light; the rest generates heat, which increases the need for air-conditioning. Unlike conventional electric lamps, the sunlight from HSL systems produces virtually no waste heat. A nationwide field trial program is under way to provide system performance data and user-feedback essential for the successful commercialization of HSL. Field trial installations include San Diego State University, San Diego, CA; Pacific Northwest National Laboratory, Richland, WA; Sacramento Municipal Utility District, Sacramento, CA; Wal-Mart, McKinney, TX; Aveda Corp., Minneapolis, MN; Staples, Long Island, NY; Braden’s Furniture, Knoxville, TN; Multipurpose Research Facility, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN; University of Nevada-Las Vegas, Las Vegas, NV; Hybrid Lighting Laboratory, ORNL, Oak Ridge, TN. This paper describes the field trial program and summarizes the results to date from the field trial installations.