The Department of Justice (DoJ) is responsible for making prosecutorial decisions. At times, these decisions attract extensive discussions in the community. It becomes interesting when overseas media and politicians embark upon allegations or purported demands relating to Hong Kong’s prosecutorial decisions.

Article 63 of the Basic Law provides that the DoJ of the Hong Kong Special Administrative Region shall control criminal prosecutions, free from any interference. This prosecutorial independence ought to be a feature in any society that cherishes the rule of law, and therefore attempts made by jurisdictions requesting such decisions to be made one way or another or even to request that they be varied is a blatant defiance of rule of law.

The DoJ acts independently without political, improper or undue influence, including those from public opinions and certainly not from overseas politicians who made these requests possibly not based on evidence or law but on political motives.

In cases in which legal proceedings are ongoing, we will not comment and neither should others as it may bring about the undesirable effect of a trial by the public. Statements made requesting the DoJ to drop all the charges or uttered with a view to affecting the DoJ’s role in controlling criminal prosecutions are futile. It is plainly wrong to label our prosecutions as politicised. On the contrary, no one, be they tycoons or politicians, will be above the law or be treated differently simply because they have a certain status or are pursuing certain beliefs or goals.

When law enforcement agencies have completed their investigation, they would seek legal advice from the DoJ. Our prosecutors would carefully consider the investigation reports and relevant materials submitted. A prosecution would only be commenced if the prosecutor is satisfied that there is sufficient admissible evidence to support a reasonable prospect of conviction.

The well-established procedures of our criminal justice system include the independent investigations by law enforcement agencies, the independent prosecutorial decisions based on objective assessment of evidence, applicable laws and in accordance with the Prosecution Code, and finally open trials by our independent judiciary. If we are to accede or be seen to yield to unreasonable demands to drop charges irresponsibly, we would not only be unfair and unprofessional but would also act in violation of the spirit of the rule of law.

I have explained the DoJ’s prosecution procedure on various occasions and stressed that our prosecutors are expected to apply the highest of professional standards in handling all criminal cases impartially and without fear or favour. They must not be influenced by political consideration. Cases should not be handled any differently irrespective of one’s own political beliefs or opinions.

The Hong Kong Special Administrative Region Government always respects and protects human rights and freedoms. However, these rights are not absolute. As pointed out by the Chief Justice of the Court of Final Appeal at the Ceremonial Opening of the Legal Year 2020: “It is important to understand that the enjoyment of these rights has limits so as not to affect adversely to an unacceptable level the enjoyment by other members of their community of their rights and liberties.” There are clear limits in the law to the exercise of these rights. When law is broken, action will be taken in accordance with the criminal justice system.

The rule of law is a core value in Hong Kong. We have to stand united in upholding our independent criminal justice system especially when it is under attack by any unfair and unfounded allegation made with a view to discrediting or undermining it. Any attempt to do so would only be attractive to those unfamiliar with our independent legal and judicial systems. We are obliged to continue to explain and ensure that their absence of knowledge would not override facts. We will continue to disseminate proper and accurate information and help clear any misunderstandings in the local and overseas communities.

Secretary for Justice Teresa Cheng wrote this article and posted it on her blog on April 26.

Companies with large numbers of furloughed workers are offering staff an introductory course in JavaScript coding, thanks to the European coding bootcamp, Codeworks.

Actinobacillus pleuropneumoniae (App) is the etiological agent of acute porcine pneumonia and responsible for severe economic losses worldwide. The capsule polymer of App serotype 1 (App1) consists of [4)-GlcNAc-β(1,6)-Gal-α-1-(PO4-] repeating units that are O-acetylated at O-6 of the GlcNAc. It is a major virulence factor and was used in previous studies in the successful generation of an experimental glycoconjugate vaccine. However, the application of glycoconjugate vaccines in the animal health sector is limited, presumably because of the high costs associated with harvesting the polymer from pathogen culture. Consequently, here we exploited the capsule polymerase Cps1B of App1 as an in vitro synthesis tool and an alternative for capsule polymer provision. Cps1B consists of two catalytic domains, as well as a domain rich in tetratricopeptide repeats (TPRs). We compared the elongation mechanism of Cps1B with that of a ΔTPR truncation (Cps1B-ΔTPR). Interestingly, the product profiles displayed by Cps1B suggested processive elongation of the nascent polymer, whereas Cps1B-ΔTPR appeared to work in a more distributive manner. The dispersity of the synthesized products could be reduced by generating single-action transferases and immobilizing them on individual columns, separating the two catalytic activities. Furthermore, we identified the O-acetyltransferase Cps1D of App1 and used it to modify the polymers produced by Cps1B. Two-dimensional NMR analyses of the products revealed O-acetylation levels identical to those of polymer harvested from App1 culture supernatants. In conclusion, we have established a protocol for the pathogen-free in vitro synthesis of tailored, nature-identical App1 capsule polymers.

The action mechanisms revealed by the biochemical and structural analyses of replicative and translesion synthesis (TLS) DNA polymerases (Pols) are retained in their cellular roles. In this regard, DNA polymerase θ differs from other Pols in that whereas purified Polθ misincorporates an A opposite 1,N6-ethenodeoxyadenosine (ϵdA) using an abasic-like mode, Polθ performs predominantly error-free TLS in human cells. To test the hypothesis that Polθ adopts a different mechanism for replicating through ϵdA in human cells than in the purified Pol, here we analyze the effects of mutations in the two highly conserved tyrosine residues, Tyr-2387 and Tyr-2391, in the Polθ active site. Our findings that these residues are indispensable for TLS by the purified Pol but are not required in human cells, as well as other findings, provide strong evidence that the Polθ active site is reconfigured in human cells to stabilize ϵdA in the syn conformation for Hoogsteen base pairing with the correct nucleotide. The evidence that a DNA polymerase can configure its active site entirely differently in human cells than in the purified Pol establishes a new paradigm for DNA polymerase function.

The Government is actively exploring sustainable and innovative approaches to expand the city’s land resources. One viable source of land supply is rock cavern development.

The relocation of suitable existing government facilities to caverns can release above-ground sites for housing and other beneficial uses. This would reduce the amount of land occupied by them, as well as relocate facilities which do not need to be above-ground and are incompatible with the surrounding environment and land uses nearby.

Mountain move

Sha Tin Sewage Treatment Works is one such facility. It will be relocated to caverns in Nui Po Shan of A Kung Kok to release the existing site of about 28 hectares for housing and other uses that will enhance Hong Kong’s living quality and bring extended benefits to the community and environment of Sha Tin.

Drainage Services Department Sewerage Projects Division Engineer Brian Chan said that moving the sewage treatment plant to caverns minimises any adverse impact on the environment and community.

“The whole sewage treatment works will be put inside the cavern and the cavern will serve as a natural barrier fully enclosing the sewage treatment works. With the implementation of an effective odour management system, the odour impact to the community will be minimised.”

Mr Chan added that moving the existing plant, which has been in operation for more than 35 years, provides an opportunity to formulate a long-term strategy for the ageing facility.

High-tech solutions

The relocated Sha Tin Sewage Treatment Works will consist of several caverns.

A successful local example of accommodating facilities in rock caverns is Stanley Sewage Treatment Works on which the layout for the Sha Tin treatment plant is based.

To reduce the required cavern space and shorten the construction period, advanced sewage and sludge treatment technologies will be used.

Water recycling is a multi-stage process in wastewater treatment plants.

Mr Chan explained that moving bed biofilm reactors will be used in the secondary treatment process at the relocated Sha Tin plant as they require less space than the traditional wastewater treatment.

“Compared to the conventional method, there will be some biofilm carriers inside the reactor and this biofilm carrier will enlarge the surface area for the biological treatment and therefore, the overall size will be reduced. In terms of the sewage treatment process, there will be about a 20% reduction in the areas.”

Sha Tin Sewage Treatment Works serves a population of about 630,000 in Sha Tin and Ma On Shan, which produce 250,000 cubic metres (m3) of sewage daily. After the relocation, the facility will be able to handle 340,000 m3 of sewage per day.

The first phase of works to relocate Sha Tin Sewage Treatment Works to caverns began in February. The Drainage Services Department hopes to start the second phase from the end of next year to early 2021 with the excavation of the caverns. The department plans to move the whole sewage plant in five stages. The project is expected to be completed by 2031.

Members of the public can visit the department's website for more details about the project and its latest developments.

(New Jersey Institute of Technology) A team of NJIT physicists has developed a novel test swab that can be 3D printed using inexpensive, widely available materials and speedily assembled in a range of fabrication settings. To augment the nation's testing capabilities, the inventors are making the swab's design publicly available, free of licensing fees, during the COVID-19 emergency.

(Kudos Innovations Ltd) Kudos helps researchers maximize reach and visibility of research by opening up Kudos Pro. The platform helps showcase work to a range of target audiences, supporting researchers in fields where conferences have been cancelled -- and those with COVID-19-relevant work that needs rapid communication. Over 2,000 researchers have already signed up.

(US Department of Agriculture - Agricultural Research Service) A new freeze-resistant Trichinella species has been discovered in wolverines by Agricultural Research Service scientists and their colleagues. Trichinella are parasites that cause the disease trichinosis (formally referred to as trichinellosis), which people can get by eating raw or undercooked meat from infected animals.

Adriaan Sticker
Apr 22, 2020; 0:RA119.001624v1-mcp.RA119.001624
Research

Background: ⁶⁸Ga PSMA PET CT (PSMA) is increasingly used in men with biochemical recurrence (BCR) post radical prostatectomy (RP), but its longer term prognostic / predictive potential in these men is unknown. The aim of this study was to evaluate the predictive value of PSMA PET for 3 year freedom from progression (FFP) in men with BCR post RP undergoing salvage radiotherapy (sRT). Methods: This prospective multi-center study enrolled 260 men between 2015 and 2017. Eligible patients were referred for PSMA with rising PSA following RP. Management following PSMA was recorded but not mandated. PSMA protocols were standardised across sites and reported prospectively. Clinical, pathological and surgical information, sRT, timing and duration of androgen deprivation (ADT), 3 year PSA results and clinical events were documented. FFP was defined as a PSA rise ≤ 0.2ng/mL above nadir post sRT, with no additional treatment. Results: The median PSA was 0.26ng/mL (IQR 0.15 - 0.59) and follow-up 38 months (IQR 31-43). PSMA was negative in 34.6% (90/260), confined to prostate fossa 21.5% (56/260), pelvic nodes 26.2% (68/260), and distant disease 17.7% (46/260). 71.5% (186/260) received sRT, 38.2% (71/186) to the fossa only, 49.4% (92/186) fossa + pelvic nodes and 12.4% (23/186) nodes alone/SBRT. PSMA was highly predictive of FFP at 3 years following sRT. Overall, FFP was achieved in 64.5% (120/186) of those who received sRT, 81% (81/100) with negative/fossa confined vs. 45% (39/86) for extra fossa disease (p<0.0001). On logistic regression PSMA was more independently predictive of FFP than established clinical predictors, including PSA, T-stage, surgical margin status or Gleason score (P < 0.002). 32% of men with a negative PSMA PET did not receive treatment. Of these, 66% (19/29) progressed, with a mean rise in PSA of 1.59ng/mL over the 3 years. Conclusion: PSMA PET result is highly predictive of FFP at 3 years in men undergoing sRT for BCR following RP. In particular, men with negative PSMA PET or disease identified as still confined to the prostate fossa demonstrate high FFP, despite receiving less extensive radiotherapy and lower rates of additional ADT than those with extra fossa disease.

Objectives: The detection of cancer micrometastasis for early diagnosis and treatment poses a great challenge for conventional imaging techniques. The aim of study is to evaluate the performance of photoacoustic imaging (PAI) in detecting hepatic micrometastases from melanoma in a very early stage and perform tumor resection by intraoperative photoacoustic image-guidance. Methods: In vivo studies were performed by following protocols approved by the Ethical Committee for Animal Research at Xiamen University. First, a B16 melanoma hepatic metastasis mouse model (n = 10) was established to study the development of micrometastases in vivo. Next, the hepatic metastasis mice models were imaged by scalable PAI instrument, ultrasound, 9.4 T high-resolution magnetic resonance imaging (MRI), positron emission tomography/computed tomography (PET/CT), and bioluminescence imaging. Photoacoustic images acquired with optical wavelengths spanning from 680 to 850 nm were spectrally unmixed by using a linear least-squares method to differentiate various components. Differences in the signal-to-background ratios among different modalities were determined with the two-tailed paired t test. The diagnosis results were assessed with histologic examinations. Excised liver samples from patients diagnosed with hepatic cancer were also examined to identify tumor boundary. In vivo metastatic melanoma removal in surgery was precisely guided by the portable PAI system. Results: PAI achieved as small as ~400 µm hepatic melanoma detection at a depth up to 7 mm in vivo, which could early detect small melanoma compared with ultrasound and MRI in mouse models. The signal ratio of tumor-to-liver acquired with PAI in micrometastases at 8 days (4.2 ± 0.2, n = 6) and 14 days (9.2 ± 0.4, n = 5) were significantly higher than those obtained with PET/CT (1.8 ± 0.1, n = 5 and 4.5 ± 0.2, n = 5, P <0.001 for both). Functional PAI provided dynamic oxygen saturation changes during tumor growth. The limit of detection was measured to be approximately 219 cells per microliter in vitro. We successfully performed intraoperative photoacoustic image-guided surgery in vivo using the rapid portable PAI system. Conclusion: Our findings offer a rapid and effective tool to noninvasively detect micrometastases and guide intraoperative resection as a complementary clinical imaging application.

Overexpression of somatostatin receptors in patients with neuroendocrine neoplasms (NEN) is utilized for both diagnosis and treatment. Receptor density may reflect tumor differentiation and thus be associated with prognosis. Non-invasive visualization and quantification of somatostatin receptor density is possible by somatostatin receptor imaging (SRI) using positron emission tomography (PET). Recently, we introduced ⁶⁴Cu-DOTATATE for SRI and we hypothesized that uptake of this tracer could be associated with overall (OS) and progression-free survival (PFS). Methods: We evaluated patients with NEN that had a ⁶⁴Cu-DOTATATE PET/CT SRI performed in two prospective studies. Tracer uptake was determined as the maximal standardized uptake value (SUV_max) for each patient. Kaplan-Meier analysis with log-rank was used to determine the predictive value of ⁶⁴Cu-DOTATATE SUV_max for OS and PFS. Specificity, sensitivity and accuracy was calculated for prediction of outcome at 24 months after ⁶⁴Cu-DOTATATE PET/CT. Results: A total of 128 patients with NEN were included and followed for a median of 73 (1-112) months. During follow-up, 112 experienced disease progression and 69 patients died. The optimal cutoff for ⁶⁴Cu-DOTATATE SUV_max was 43.3 for prediction of PFS with a hazard ratio of 0.56 (95% CI: 0.38-0.84) for patients with SUV_max > 43.3. However, no significant cutoff was found for prediction of OS. In multiple Cox regression adjusted for age, sex, primary tumor site and tumor grade, the SUV_max cutoff hazard ratio was 0.50 (0.32-0.77) for PFS. The accuracy was moderate for predicting PFS (57%) at 24 months after ⁶⁴Cu-DOTATATE PET/CT. Conclusion: In this first study to report the association of ⁶⁴Cu-DOTATATE PET/CT and outcome in patients with NEN, tumor somatostatin receptor density visualized with ⁶⁴Cu-DOTATATE PET/CT was prognostic for PFS but not OS. However, the accuracy of prediction of PFS at 24 months after ⁶⁴Cu-DOTATATE PET/CT SRI was moderate limiting the value on an individual patient basis.

10 December 2019

Research Event

Event participants

Jon Temin, Director, Africa Programs, Freedom House
Chair: Rachael Jolley, Editor-in-chief, Index on Censorship 

10 December 2019

Kathrin B. Hasbargen
May 1, 2020; 61:734-745
Research Articles

Label-Free Quantitative mass spectrometry based workflows for differential expression (DE) analysis of proteins impose important challenges on the data analysis due to peptide-specific effects and context dependent missingness of peptide intensities. Peptide-based workflows, like MSqRob, test for DE directly from peptide intensities and outperform summarization methods which first aggregate MS1 peptide intensities to protein intensities before DE analysis. However, these methods are computationally expensive, often hard to understand for the non-specialised end-user, and do not provide protein summaries, which are important for visualisation or downstream processing. In this work, we therefore evaluate state-of-the-art summarization strategies using a benchmark spike-in dataset and discuss why and when these fail compared to the state-of-the-art peptide based model, MSqRob. Based on this evaluation, we propose a novel summarization strategy, MSqRobSum, which estimates MSqRob’s model parameters in a two-stage procedure circumventing the drawbacks of peptide-based workflows. MSqRobSum maintains MSqRob’s superior performance, while providing useful protein expression summaries for plotting and downstream analysis. Summarising peptide to protein intensities considerably reduces the computational complexity, the memory footprint and the model complexity, and makes it easier to disseminate DE inferred on protein summaries. Moreover, MSqRobSum provides a highly modular analysis framework, which provides researchers with full flexibility to develop data analysis workflows tailored towards their specific applications.

7 May 2020 , Volume 96, Number 3

Adipocytes take up long chain FAs through diffusion and protein-mediated transport, whereas FA efflux is considered to occur by diffusion. To identify potential membrane proteins that are involved in regulating FA flux in adipocytes, the expression levels of 55 membrane transporters without known function were screened in subcutaneous adipose samples from obese patients before and after bariatric surgery using branched DNA methodology. Among the 33 solute carrier (SLC) transporter family members screened, the expression of 14 members showed significant changes before and after bariatric surgery. One of them, Slc43a3, increased about 2.5-fold after bariatric surgery. Further investigation demonstrated that Slc43a3 is highly expressed in murine adipose tissue and induced during adipocyte differentiation in primary preadipocytes and in OP9 cells. Knockdown of Slc43a3 with siRNA in differentiated OP9 adipocytes reduced both basal and forskolin-stimulated FA efflux, while also increasing FA uptake and lipid droplet accumulation. In contrast, overexpression of Slc43a3 decreased FA uptake in differentiated OP9 cells and resulted in decreased lipid droplet accumulation. Therefore, Slc43a3 seems to regulate FA flux in adipocytes, functioning as a positive regulator of FA efflux and as a negative regulator of FA uptake.

Mandeep Bajaj
Nov 1, 2005; 54:3148-3153
Metabolism

All organizations need simple and effective employee reviews with 360 degree options. Teamphoria completely replaces paper and spreadsheet based employee reviews Template and Software.

I would have to have eight hundred haircuts, To, Buy the ‘Professionals hair-cutter’ electric clippers I, Saw on offer, at the shop window whilst having a pee, and Trying to hit the resting mosquito on the wall, With my urine, -stream of thought- When, I noticed the incessant sound of welding, Work-shop beside the loo, […]

Freddie Freeman spent the offseason sharing excitement about the possibility that Josh Donaldson would not end up being the Braves' only significant offseason addition.

T Inoguchi
Nov 1, 2000; 49:1939-1945
Articles

ME Griffin
Jun 1, 1999; 48:1270-1274
Articles

Let’s have heart Let’s have heart And space ourselves Three feet apart Let’s act fast to bring this disease to its last Let’s have heart and play our part To do our best to turn the spread off Hand sanitizers Elbow coughs Masks and...

Vodou evokes a schizophrenic response among the misinformed. Reactions abound: apprehension, incredulity, and vilification. It is not that Vodou struggles for meaning. Vodou has its own particular ideal. It is primordial sense. It is very much...

The action mechanisms revealed by the biochemical and structural analyses of replicative and translesion synthesis (TLS) DNA polymerases (Pols) are retained in their cellular roles. In this regard, DNA polymerase θ differs from other Pols in that whereas purified Polθ misincorporates an A opposite 1,N6-ethenodeoxyadenosine (ϵdA) using an abasic-like mode, Polθ performs predominantly error-free TLS in human cells. To test the hypothesis that Polθ adopts a different mechanism for replicating through ϵdA in human cells than in the purified Pol, here we analyze the effects of mutations in the two highly conserved tyrosine residues, Tyr-2387 and Tyr-2391, in the Polθ active site. Our findings that these residues are indispensable for TLS by the purified Pol but are not required in human cells, as well as other findings, provide strong evidence that the Polθ active site is reconfigured in human cells to stabilize ϵdA in the syn conformation for Hoogsteen base pairing with the correct nucleotide. The evidence that a DNA polymerase can configure its active site entirely differently in human cells than in the purified Pol establishes a new paradigm for DNA polymerase function.

The Las Vegas Raiders have agreed to a deal with free agent running back Devontae Booker.

A San Francisco rapper is attempting to break a Guinness World Record with a live-streamed performance featuring 33 hours, 30 minutes and 30 seconds of freestyle rapping.

Roman Hovorka
May 1, 2014; 37:1204-1211
Advances in Artificial Pancreas Development

Dentists who have had a dental plan payment check lost in the mail could consider a way to receive safe and secure payment through electronic funds transfer payments.

The ADA is hosting a free webinar in March on how to effectively advertise and market services and dental practices on Facebook and Instagram.

The ADA is partnering with the Organization for Safety, Asepsis and Prevention in providing a free on-demand webinar on Friday, March 20, with content for the program based on questions the ADA has received from members looking for guidance while navigating the novel coronavirus pandemic.

Beginning March 25, the ADA is offering members two free e-books a week. Until March 31, members can access “Managing the Regulatory Environment: Best Practices” and “A Dentist’s Guide to the Law: 228 Things Every Dentist Should Know” free of charge.

As part of its ongoing efforts to support dentists during the COVID-19 pandemic, the ADA is offering members two free e-books the week of April 1-7: “Managing Professional Risks: Best Practices” and “The ADA Practical Guide to OSHA Training: Compliance for Dental Professionals.”

As part of its ongoing efforts to support dentists during the COVID-19 pandemic, the ADA is offering members two free e-books the week of April 8-14: “Managing Finances: Best Practices” and “The ADA Practical Guide to HIPAA Training.”

In a time when teledentistry is gaining more attention during the COVID-19 pandemic, the ADA will stream a free webinar in May that takes a close look at the different types of images needed for diagnosis, treatment planning and operative procedures.

The ADA is streaming a free webinar April 14 intended to help dentists jump-start their recovery process during and after the COVID-19 pandemic.

Engineers in China have developed a fossil fuel-free jet propulsion prototype design that uses microwave air plasmas.

Everyone is concerned as the novel Coronavirus spreads at rapid rates across all countries of the world. We believe every…

Ever since we launched our Free COVID-19 Alerting System, we’ve been continuously asked how we made it. In this blog…

Privacy isn't dead, but face surveillance technology might kill it, says civil rights advocate Kade Crockford. In an eye-opening talk, Kade outlines the startling reasons why this invasive technology -- powered by often-flawed facial recognition databases that track people without their knowledge -- poses unprecedented threats to your fundamental rights. Learn what can be done to ban government use before it's too late.

Emotions remain raw as educators and residents in a rural Wisconsin district dig for solutions after being denied the option of dissolving.

The play made me ask the terrifying question that every educator asks themselves at some point: Am I actually helping my students?

Self-actualization (Psychology)

Social psychology -- Australia.