24 research outputs found
Developing a modern microbiology laboratory manual to enhance student learning
My project has been addressing the issue of incorporating recent developments in biosafety and pedagogical approaches for lab-courses into our existing educational curriculum by developing a new, modern lab manual aimed at improving experiential learning for introductory microbiology teaching labs. Through researching the most recent safety regulations, industry standards, & guidelines for such teaching labs, my manual clearly delineates learning outcomes to match the skills expected of undergraduates completing degrees within the life sciences. In addition, the lab manual that I have designed has been modernized to incorporate the most recent recommended safety precautions and is written in a user-friendly manner to facilitate teaching each subject through concise procedures. Further, it has been structured with a review of basic, fundamental material that builds in complexity as the students progress through the semester. Thereby, it reinforces student knowledge of prior concepts in a just-in-time learning approach before endeavoring in relevant protocols. It is my goal to have this manual used for content generation with future classes and to aid in improving the education of my peers
When Federal Courts Remediate Intrastate Redistricting Stalemates: Parsing What Is Owed Deference When State Policies Conflict
When partisan politics completely frustrate the efforts of a state to redistrict after a census, federal district courts are tasked with the âunwelcome obligationâ of imposing court-ordered electoral maps that meet the federal constitutional one-per- son, one-vote requirement. This Comment terms these cases âintrastate redistricting stalemates,â novelly distinguishing them from other Equal Protection one-person, one-vote cases. In the wake of Moore v. Harper, federal courts may be remediating more intrastate redistricting stalemates than ever if state courts are stripped of their power to impose remedial congressional maps as outside the scope of âordinary judicial reviewâ permitted under the Elections Clause.
Remediating intrastate redistricting stalemates is trickier for federal courts than remediating other Equal Protection one-person, one-vote cases. In crafting or selecting remedial maps, the U.S. Supreme Court has instructed federal courts that they must defer to statesâ policies and plans. To inadequately do so is reversible error. But when is a state policy or plan owed deference? The answer is clear in cases where a state has recently redistricted but a federal court has struck down the stateâs new maps for failure to meet federal constitutional or statutory requirements: the stateâs policies as expressed in its recently enacted, post-census reapportionment plan are owed deference to the extent they do not violate federal requirements.
But when a state fails to redistrict post-census due to an intrastate stalemate, this Comment argues that there is no recently enacted reapportionment plan owed deference. This Comment argues this holds true whether the intrastate stalemate presents as (1) an intralegislative conflict, due to one or both legislative branches failing to agree on a map or to garner sufficient votes to pass a map; (2) a conflict between the stateâs legislative branch and the executive branch via the governor vetoing a legislatively passed map; or (3) a conflict between the state judiciary and the mapmaking body over the state constitutionality of the reapportionment plan.
Instead, this Comment argues that the controlling source of state policy owed deference when remediating an intrastate redistricting stalemate must be the stateâs constitution over other conflicting sources of state policy. This is particularly critical because often state government parties advocate for their own rejected or stalled reapportionment plansâwhich do not have the force of lawâas proposed remedies in these intrastate stalemate cases. To blindly select a proposed map solely because it was prepared by the branch delegated with state mapmaking power puts the federal court in the position of selecting a winner in a bitter, hyperpartisan dispute that could not exist under the state constitutionâs checks and balancesâwhich remain critical after Moore. Instead, a federal court must select or craft a remedial map that (1) comports with all state constitutional commands and controls for electoral map outcomes; and (2) best embodies state redistricting policies as expressed in other valid state statutes
Injectable local anaesthetic agents for dental anaesthesia
Background: Pain during dental treatment, which is a common fear of patients, can be controlled successfully by local anaesthetic. Several different local anaesthetic formulations and techniques are available to dentists. / Objectives: Our primary objectives were to compare the success of anaesthesia, the speed of onset and duration of anaesthesia, and systemic and local adverse effects amongst different local anaesthetic formulations for dental anaesthesia. We define success of anaesthesia as absence of pain during a dental procedure, or a negative response to electric pulp testing or other simulated scenario tests. We define dental anaesthesia as anaesthesia given at the time of any dental intervention.
Our secondary objective was to report on patients' experience of the procedures carried out. / Search methods: We searched the Cochrane Central Register of Controlled Trials (CENTRAL; the Cochrane Library; 2018, Issue 1), MEDLINE (OVID SP), Embase, CINAHL PLUS, WEB OF SCIENCE, and other resources up to 31 January 2018. Other resources included trial registries, handsearched journals, conference proceedings, bibliographies/reference lists, and unpublished research. / Selection criteria: We included randomized controlled trials (RCTs) testing different formulations of local anaesthetic used for clinical procedures or simulated scenarios. Studies could apply a parallel or crossâover design. / Data collection and analysis: We used standard Cochrane methodological approaches for data collection and analysis. / Main results: We included 123 studies (19,223 participants) in the review. We pooled data from 68 studies (6615 participants) for metaâanalysis, yielding 23 comparisons of local anaesthetic and 57 outcomes with 14 different formulations. Only 10 outcomes from eight comparisons involved clinical testing.
We assessed the included studies as having low risk of bias in most domains. Seventyâthree studies had at least one domain with unclear risk of bias. Fifteen studies had at least one domain with high risk of bias due to inadequate sequence generation, allocation concealment, masking of local anaesthetic cartridges for administrators or outcome assessors, or participant dropout or exclusion.
We reported results for the eight most important comparisons. / Success of anaesthesia: When the success of anaesthesia in posterior teeth with irreversible pulpitis requiring root canal treatment is tested, 4% articaine, 1:100,000 epinephrine, may be superior to 2% lidocaine, 1:100,000 epinephrine (31% with 2% lidocaine vs 49% with 4% articaine; risk ratio (RR) 1.60, 95% confidence interval (CI) 1.10 to 2.32; 4 parallel studies; 203 participants; lowâquality evidence).
When the success of anaesthesia for teeth/dental tissues requiring surgical procedures and surgical procedures/periodontal treatment, respectively, was tested, 3% prilocaine, 0.03 IU felypressin (66% with 3% prilocaine vs 76% with 2% lidocaine; RR 0.86, 95% CI 0.79 to 0.95; 2 parallel studies; 907 participants; moderateâquality evidence), and 4% prilocaine plain (71% with 4% prilocaine vs 83% with 2% lidocaine; RR 0.86, 95% CI 0.75 to 0.99; 2 parallel studies; 228 participants; lowâquality evidence) were inferior to 2% lidocaine, 1:100,000 epinephrine.
Comparative effects of 4% articaine, 1:100,000 epinephrine and 4% articaine, 1:200,000 epinephrine on success of anaesthesia for teeth/dental tissues requiring surgical procedures are uncertain (RR 0.85, 95% CI 0.71 to 1.02; 3 parallel studies; 930 participants; very lowâquality evidence).
Comparative effects of 0.5% bupivacaine, 1:200,000 epinephrine and both 4% articaine, 1:200,000 epinephrine (odds ratio (OR) 0.87, 95% CI 0.27 to 2.83; 2 crossâover studies; 37 participants; lowâquality evidence) and 2% lidocaine, 1:100,000 epinephrine (OR 0.58, 95% CI 0.07 to 5.12; 2 crossâover studies; 31 participants; lowâquality evidence) on success of anaesthesia for teeth requiring extraction are uncertain.
Comparative effects of 2% mepivacaine, 1:100,000 epinephrine and both 4% articaine, 1:100,000 epinephrine (OR 3.82, 95% CI 0.61 to 23.82; 1 parallel and 1 crossâover study; 110 participants; lowâquality evidence) and 2% lidocaine, 1:100,000 epinephrine (RR 1.16, 95% CI 0.25 to 5.45; 2 parallel studies; 68 participants; lowâquality evidence) on success of anaesthesia for teeth requiring extraction and teeth with irreversible pulpitis requiring endodontic access and instrumentation, respectively, are uncertain.
For remaining outcomes, assessing success of dental local anaesthesia via metaâanalyses was not possible. / Onset and duration of anaesthesia: For comparisons assessing onset and duration, no clinical studies met our outcome definitions.
Adverse effects (continuous pain measured on 170âmm HeftâParker visual analogue scale (VAS))
Differences in postâinjection pain between 4% articaine, 1:100,000 epinephrine and 2% lidocaine, 1:100,000 epinephrine are small, as measured on a VAS (mean difference (MD) 4.74 mm, 95% CI â1.98 to 11.46 mm; 3 crossâover studies; 314 interventions; moderateâquality evidence). Lidocaine probably resulted in slightly less postâinjection pain than articaine (MD 6.41 mm, 95% CI 1.01 to 11.80 mm; 3 crossâover studies; 309 interventions; moderateâquality evidence) on the same VAS.
For remaining comparisons assessing local and systemic adverse effects, metaâanalyses were not possible. Other adverse effects were rare and minor. / Patients' experience: Patients' experience of procedures was not assessed owing to lack of data. / Authors' conclusions: For success (absence of pain), lowâquality evidence suggests that 4% articaine, 1:100,000 epinephrine was superior to 2% lidocaine, 1:100,000 epinephrine for root treating of posterior teeth with irreversible pulpitis, and 2% lidocaine, 1:100,000 epinephrine was superior to 4% prilocaine plain when surgical procedures/periodontal treatment was provided. Moderateâquality evidence shows that 2% lidocaine, 1:100,000 epinephrine was superior to 3% prilocaine, 0.03 IU felypressin when surgical procedures were performed.
Adverse events were rare. Moderateâquality evidence shows no difference in pain on injection when 4% articaine, 1:100,000 epinephrine and 2% lidocaine, 1:100,000 epinephrine were compared, although lidocaine resulted in slightly less pain following injection.
Many outcomes tested our primary objectives in simulated scenarios, although clinical alternatives may not be possible.
Further studies are needed to increase the strength of the evidence. These studies should be clearly reported, have low risk of bias with adequate sample size, and provide data in a format that will allow metaâanalysis. Once assessed, results of the 34 âStudies awaiting classification (full text unavailable)â may alter the conclusions of the review
When Federal Courts Remediate Intrastate Redistricting Stalemates: Parsing What Is Owed Deference When State Policies Conflict
When partisan politics completely frustrate the efforts of a state to redistrict after a census, federal district courts are tasked with the âunwelcome obligationâ of imposing court-ordered electoral maps that meet the federal constitutional one-per- son, one-vote requirement. This Comment terms these cases âintrastate redistricting stalemates,â novelly distinguishing them from other Equal Protection one-person, one-vote cases. In the wake of Moore v. Harper, federal courts may be remediating more intrastate redistricting stalemates than ever if state courts are stripped of their power to impose remedial congressional maps as outside the scope of âordinary judicial reviewâ permitted under the Elections Clause.
Remediating intrastate redistricting stalemates is trickier for federal courts than remediating other Equal Protection one-person, one-vote cases. In crafting or selecting remedial maps, the U.S. Supreme Court has instructed federal courts that they must defer to statesâ policies and plans. To inadequately do so is reversible error. But when is a state policy or plan owed deference? The answer is clear in cases where a state has recently redistricted but a federal court has struck down the stateâs new maps for failure to meet federal constitutional or statutory requirements: the stateâs policies as expressed in its recently enacted, post-census reapportionment plan are owed deference to the extent they do not violate federal requirements.
But when a state fails to redistrict post-census due to an intrastate stalemate, this Comment argues that there is no recently enacted reapportionment plan owed deference. This Comment argues this holds true whether the intrastate stalemate presents as (1) an intralegislative conflict, due to one or both legislative branches failing to agree on a map or to garner sufficient votes to pass a map; (2) a conflict between the stateâs legislative branch and the executive branch via the governor vetoing a legislatively passed map; or (3) a conflict between the state judiciary and the mapmaking body over the state constitutionality of the reapportionment plan.
Instead, this Comment argues that the controlling source of state policy owed deference when remediating an intrastate redistricting stalemate must be the stateâs constitution over other conflicting sources of state policy. This is particularly critical because often state government parties advocate for their own rejected or stalled reapportionment plansâwhich do not have the force of lawâas proposed remedies in these intrastate stalemate cases. To blindly select a proposed map solely because it was prepared by the branch delegated with state mapmaking power puts the federal court in the position of selecting a winner in a bitter, hyperpartisan dispute that could not exist under the state constitutionâs checks and balancesâwhich remain critical after Moore. Instead, a federal court must select or craft a remedial map that (1) comports with all state constitutional commands and controls for electoral map outcomes; and (2) best embodies state redistricting policies as expressed in other valid state statutes