313 research outputs found
Finite Presentability of Brin-Higman-Thompson Monoids via Free J\'onsson-Tarski Algebras
We show that the total monoids totnM_{k,1} introduced by Birget(and their
multi-rooted generalisations), which extend the Brin-Higman-Thompson groups,
can be realised as the endomorphism monoids of higher dimensional
J\'onnson-Tarski algebras. We use this representation to show that they are
finitely presented.Comment: 18 page
Lessons Learned in Establishing STEM Student Cohorts at a Border University and the Effect on Student Retention and Success
The University of Texas at Brownsville (UTB) serves more than 8,000 students in the Lower Rio Grande Valley area and broader Mexico region. UTB is a Hispanic-serving institution that attracts students from the surrounding areas, including the Mexico border region. The College of Science, Mathematics and Technology (CSMT) established a Science, Technology, Engineering, and Mathematics (STEM) cohort program to help the majority of students to earn a degree in a STEM field in the shortest possible time. The challenges and obstacles encountered during the planning and implementation phase of the STEM cohort program are discussed in this paper, as are the adjustments and real solutions adopted to move the project forward and the retention problems encountered with the student groups
Creating a Seamless Pipeline into Undergraduate Programs in STEM Fields Through Region-wide Articulation Agreements
Underrepresented minority students pursue science, technology, engineering, and mathematics (STEM) related degrees at much lower rates compared to other segments of the population. To attract minority students, schools with STEM programs have resorted to myriad strategies such as cohorts, scholarships, mentoring, summer bridges, etc. Some schools have also sought innovative ways to develop a pipeline for graduates of two-year technical degree programs to matriculate into their four-year STEM programs and complete the remaining coursework leading to a BAT or BS degree. The University of Texas at Brownsville (UTB) has adopted this latter innovative approach to increasing student enrollment in STEM fields. The College of Science, Mathematics and Technology (CSMT) has recently completed and signed novel articulation agreements with three of the major community colleges in the region. These articulation agreements provide a pathway for community college students to seamlessly transfer into the UXX STEM programs. The community college programs covered in the articulation agreements represent a wide variety of two-year programs in the fields of engineering and technology. The seamless pipeline generated through these articulation agreements will greatly enhance the transfer of students from the two-year programs into four-year baccalaureate programs. The STEM programs at the college (CSMT) are already witnessing increased enrollment numbers as a result of the community college transfers. This paper will detail the articulation agreements, discuss the benefits of the agreements for both types of institutions, and analyze the challenges encountered in transferring technical courses from the community colleges. Preliminary enrollment data will be presented that suggests an early indication as to the future viability of the articulated programs
Integral habitat transport system
In the 1993 Fall quarter, the ME 4182 design class was sponsored to study various scenarios that needed to be studied for Martian travel. The class was sponsored by NASA and there were several different design projects. The design that group three chose was an integral transport system for a Martian habitat. An integral transport system means the design had to be one that was attached to the habitat. There were several criteria that the design had to meet. Group three performed an in depth study of the Martian environment and looked at several different design ideas. The concept group three developed involved the use of kinematic linkages and the use of Martian gravity to move the habitat. The various design concepts, the criteria matrices and all other aspects that helped group three develop their design can be found in their 1993 ME 4182 design report. Now it is Winter quarter 1994 and group three is faced with another problem. The problem is building a working prototype of their Fall design. The limitations this quarter were the parts. The group had to make the prototype work with existing manufactured parts or make the parts themselves in a machine shop. The prototype was scaled down roughly about twelve times smaller than the original design. The following report describes the actions taken by group three to build a working model
Preregistration of secondary data analysis:A template and tutorial
Multivariate analysis of psychological dat
Prospectus, October 25, 1984
NICARAGUAN ISSUES PRESENTED; How important is one vote?; Republicans believe their policies are best; Dear Prospectus staff; Democrats believe they have the answers; Busing of private school students Who will foot the bill?; Library director\u27s son honored Johnson is All-American; Library undergoes computerization; PC Happenings; Women\u27s workshop turns to life choices; Family program offered in 4 parts; Health professionals workshop set; Board considers program additions; The Bowling Pin; Wife abuse still widespread problem; Did you know...TV Trivia; Gammon designs for bazaar; International students plan Halloween party; Block talented in diverse fields; Creative Corner...Especially for you!!; Doom Story-the climax draws near; Nuclear Weapons Freeze; Rejoice the Poet; Sacred Love; The Little Red Dog; The Unopened Gate; One More Time; The Run; RS 1981-82; Decisions; Watching; The Widower; Classifieds; Farrah can act; The Burning Bed alters opinions; Tina\u27s hot as a solo; Joan\u27s newest lacks punch; Why is Harry so much trouble; Furs possess unique style; Motherhood makes humorous reading; Budget bin; Lady Cobras compile 7-1 record in tournament; Clifton, Sullivan guest on Cobra Rap show; Gold defeat Green in 4 games; Peterson to nationalshttps://spark.parkland.edu/prospectus_1984/1007/thumbnail.jp
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A professional development model to integrate computational thinking into middle school science through codesigned storylines
This article describes a professional development (PD) model, the CT-Integration Cycle, that supports teachers in learning to integrate computational thinking (CT) and computer science principles into their middle school science and STEM instruction. The PD model outlined here includes collaborative design (codesign; Voogt et al., 2015) of curricular units aligned with the Next Generation Science Standards (NGSS) that use programmable sensors. Specifically, teachers can develop or modify curricular materials to ensure a focus on coherent, student-driven instruction through the investigation of scientific phenomena that are relevant to students and integrate CT and sensor technology. Teachers can implement these storylines and collaboratively reflect on their instructional practices and student learning. Throughout this process, teachers may develop expertise in CT-integrated science instruction as they plan and use instructional practices aligned with the NGSS and foreground CT. This paper describes an examination of a group of five middle school teachers’ experiences during one iteration of the CT-Integration Cycle, including their learning, planning, implementation, and reflection on a unit they codesigned. Throughout their participation in the PD, the teachers expanded their capacity to engage deeply with CT practices and thoughtfully facilitated a CT-integrated unit with their students.</p
Fatty acid ethyl ester synthase inhibition ameliorates ethanol-induced Ca2+-dependent mitochondrial dysfunction and acute pancreatitis
Objective Non-oxidative metabolism of ethanol (NOME) produces fatty acid ethyl esters (FAEEs) via carboxylester lipase (CEL) and other enzyme action implicated in mitochondrial injury and acute pancreatitis (AP). This study investigated the relative importance of oxidative and non-oxidative pathways in mitochondrial dysfunction, pancreatic damage and development of alcoholic AP, and whether deleterious effects of NOME are preventable. Design Intracellular calcium ([Ca2+]C), NAD(P)H, mitochondrial membrane potential and activation of apoptotic and necrotic cell death pathways were examined in isolated pancreatic acinar cells in response to ethanol and/or palmitoleic acid (POA) in the presence or absence of 4-methylpyrazole (4-MP) to inhibit oxidative metabolism. A novel in vivo model of alcoholic AP induced by intraperitoneal administration of ethanol and POA was developed to assess the effects of manipulating alcohol metabolism. Results Inhibition of OME with 4-MP converted predominantly transient [Ca2+]C rises induced by low ethanol/POA combination to sustained elevations, with concurrent mitochondrial depolarisation, fall of NAD(P)H and cellular necrosis in vitro. All effects were prevented by 3-benzyl-6-chloro-2-pyrone (3-BCP), a CEL inhibitor. 3-BCP also significantly inhibited rises of pancreatic FAEE in vivo and ameliorated acute pancreatic damage and inflammation induced by administration of ethanol and POA to mice. Conclusions A combination of low ethanol and fatty acid that did not exert deleterious effects per se became toxic when oxidative metabolism was inhibited. The in vitro and in vivo damage was markedly inhibited by blockade of CEL, indicating the potential for development of specific therapy for treatment of alcoholic AP via inhibition of FAEE generation
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