President Rodrigo Duterte said last Monday that he wanted the government to buy rubber batons for police because they needed to subdue criminals who were resisting arrest.     In his television briefing, the president agreed with Interior Secretary Eduardo Año that police could use“yantok” or rattan sticks to protect themselves from violent resistance against lawbreakers who arrest and attack law enforcement officials.     The Human Rights Commission warned the government against the “unnecessary” use of force and actions that could harm and humiliate people.     Earlier in the day, presidential spokesman Harry rock warned police not to use “yantok” or rattan, stressing that it was not allowed under the law and the provisions of the Philippine National Police (PNP). Duterte added that batons are “less-lethal weapons”against aggressive criminals. Nanjing Superfit

The emergence of vaccines has not changed the current situation of shortage of epidemic prevention supplies in the United States. Starting this month, the good news of the vaccine began to sweep across the United States from New York. However, for much front-line medical staff, it is too early to be optimistic. They fear the good news by the vaccine will overshadow a crisis that has not received much public attention in recent months. We have been facing a severe shortage of personal protective equipment (PPE), the quantitative use of latex disposable gloves, gowns, and N95 face masks increasing the risk of infection. “Our days are filled with fear and doubt,” Mr. Rubesch said. “It’s like driving a car without seat belts.” Many of the shortages are the result of soaring global demand, but supply chain experts and healthcare providers say the Trump administration has been largely non-interference in the production and distribution of protective equipment over the past nine months, which has exacerbated the problem. Nanjing Superfit

DeepDOF, a new microscope, uses artificial intelligence to quickly and cheaply image all the cells in a large section of tissue with minimal preparation at high resolution (left), eliminating the expensive and time-consuming process of installing a thin tissue slice on a slide (right).     For a typical microscope, there is a trade-off between spatial resolution and depth of field, which means that only objects at the same distance from the lens can focus clearly. Even a few millionths of a meter near or far from the objective of a microscope, the features will be blurred. As a result, lab microscope samples are usually thin and mounted between slides.     At present, the section is used to examine the margins of the tumor, and it is not easy to prepare. The removed tissue is usually sent to a hospital laboratory, where experts either freeze it or prepare it with chemicals, then make extremely thin sections and attach them to slides. This process is time-consuming and requires specialized equipment and trained workers. Hospitals rarely can examine slides at the edge of tumors during surgery, and relevant health institutions in many parts of the world lack the necessary equipment and expertise.     DeepDOF uses a deep learning neural network and an expert system, which can study a large number of data to make decisions similar to human. The researchers showed it 1200 images from a database of tissue slices. From this, DeepDOF learned how to choose the best phase mask to image a specific sample, and how to remove blur from the image captured from the sample to focus cells of different depths.     Richards-Kortum, Rice’s Malcolm Gillis University Professor, professor of bioengineering and director of the Rice 360° Institute for Global Health said, “A clinical study is needed to find out whether DeepDOF can be used as proposed for margin assessment during surgery. We hope to begin clinical validation in the coming year.” Nanjing Superfit

(Image From Getty Images hide caption) In the picture, the patient is being checked for vital signs with a pulse oximeter.     According to a report in The New England Journal of Medicine this month, commonly used fingertip devices measure oxygen levels in the blood, sometimes giving people with dark skin misleading readings.     Affected by the epidemic this year, medical institutions around the world have accepted a large number of patients. Dr. Michael Sjoding and his colleagues at the University of Michigan hospital in Ann Arbor encountered this problem when using a finger pulse oximeter, and many of these patients were black. "We found that this was more common in black patients. Three times as much as before, "Sjoding said.     Skin pigmentation, colored disinfectants, and other surface light absorbents should not theoretically lead to errors in SPO2 readings because pigments absorb a constant portion of the incident light, and pulse oximetry uses only pulsatile absorption data.     The best defense against all these potential problems is a deeply suspicious and insight into the mechanism and potential significance of each problem. If there is any doubt about the saturation reading, the staff should place the pulse oximeter probe on their fingers as close as possible to the original patient to check whether the reading is 97%, or as expected. If SP02 is suspected to be incorrect, we recommend the use of a multi-wavelength in vitro oximeter for preliminary analysis. Since pulse oximeter has been widely used, it is recommended that multi-wavelength oximeters should be normally operated in large centers. Nanjing Superfit

What is Microscope glass slide? Glass slide is a glass piece or a quartz piece on which a biological specimen is placed when observing through the microscope. When preparing sample, the cell or tissue, after being sliced and treated, is placed on a glass slide, and the cover glass is placed thereon, and then the glass slide is used for observation under the microscope. Glass slide requires good light transmission, and its surface flat and even. For different application requirements, different glass slides can be selected. Glass sides are generally made of standard rectangles. The general standard size is about 75x25mm, the conventional thickness is 1mm, and there are also 2mm, 3mm, etc., and the thickest can be up to 8mm. Generally, the surface and edge of the glass slide are treated with various forms, such as transparent, frosted, colored frosted, single concave, double concave, and edging etc. Classified according to materials, glass slides can be divided into common float glass slides and quartz glass slides. Classified according to cleaning requirements, glass slides can be divided into wash-free slides and non-wash-free slides. According to requirements for use, glass slides can be divided into microscope glass slide and cell culture glass slides. Glass slides should be cleaned. Use finger and edge contact as much as possible, avoid direct finger contact with the surface of the slide so as to avoid leaving fingerprints or smudges on it. If so, after washing with water or alcohol, wipe it off with gauze or tube wiping tissue.

Containers piled up at a port in Singapore. During the coronavirus period, the global supply chain was subverted by the slowdown of shipping. Photograph: Wallace Woon/EPA     Freight rates from North Asia to the UK is at an all-time high. As demand continues to rise and equipment shortages continue to plague the market, shipping companies have no choice but to increase freight rates to maintain profit margins.     Vincent CLERC, the chief business officer of Maersk, the world’s largest shipping company, said on Wednesday that there were “simply not enough containers in the world to meet current demand”. He said the recent blockade in the UK and across Europe may even stimulate online purchases of more consumer goods, at least for a few weeks.     Uncertainty about future trade relations and fears of border delays caused by customs inspections have led to increased demand for goods. Coupled with the change of consumer habits, the shift from services to consumer goods, the seasonal demand before Christmas, and the restocking of enterprises closed due to the nationwide blockade, it is difficult for the port to cope with the growing traffic volume. This situation has developed into this new year and continues to affect the relevant foreign trade industry. Nanjing Superfit

What is an oxygen face mask? An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover only the nose and mouth (oral nasal mask) or the entire face (full-face mask). They may be made of plastic, silicone, or rubber. In certain circumstances, oxygen may be delivered via a nasal cannula instead of a mask. Medical plastic oxygen masks are used primarily by medical care providers for oxygen therapy because they are disposable and so reduce cleaning costs and infection risks.  Mask design can determine accuracy of oxygen delivered with many various medical situations requiring treatment with oxygen.  Oxygen is naturally occurring in room air at 21% and higher percentages are often essential in medical treatment.  Oxygen in these higher percentages is classified as a drug with too much oxygen being potentially harmful to a patient's health, resulting in oxygen dependence over time, and in extreme circumstances patient blindness.  For these reasons oxygen therapy is closely monitored.  Masks are light in weight and attached using an elasticated headband or ear loops.  They are transparent for allowing the face to be visible for patient assessment by healthcare providers, and reducing a sensation of claustrophobia experienced by some patients when wearing an oxygen mask.  The vast majority of patients having an operation will at some stage wear an oxygen mask;  they may alternatively wear a nasal cannula but oxygen delivered in this way is less accurate and restricted in concentration.

Topic Overview Ice and cold packs can relieve pain, swelling, and inflammation from injuries and other conditions, such as arthritis.   Types of ice and cold packs  Ice towel. Wet a towel with cold water and squeeze it until it is just damp. Fold the towel, place it in a plastic bag, and freeze it for 15 minutes. Remove the towel from the bag and place it on the injured or sore area. Ice pack. Put about 0.5 kg (1 lb) of ice in a plastic bag or ice pack you buy at the store. Add enough water to barely cover the ice. Squeeze the air out of the bag and seal it. Wrap the bag in a wet towel and apply to the affected area. Cold packs.   You can also buy cold packs that can be reused. Store them in your freezer. Some of them are designed to wrap around an injured area, such as an arm or knee.   Using an ice or cold pack Apply an ice or cold pack to the injured or sore area at least 3 times a day for as long as you have pain, swelling, and inflammation. For the first 72 hours, ice for 10 minutes, once an hour. After that, use ice for 15 to 20 minutes, 3 times a day: in the morning, in the late afternoon after work or school, and about one-half hour before bedtime. Also, ice after any prolonged activity or vigorous exercise.   Always keep a cloth between your skin and the ice pack, and press firmly against all the curves of the affected area. Do not apply ice for longer than 15 to 20 minutes at a time, and do not fall asleep with the ice on your skin.   Commercial cold packs are too heavy and bulky for use on or around the eye. Be careful around the eye to prevent a chemical burn to the eye if a pack leaks.