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Congratulations go out to Singapore, having become the first Asian country to make it into the Universitas 21 Rankings, as reported by Times Higher Education.
The Universitas 21 Rankings – the second of their kind – saw Singapore rank ninth, which is a huge accomplishment in promoting the continent as a leading study destination. Last month we reported how institutions in Malaysia and Singapore had ranked in the first Times Higher Education Asia Rankings.
The U21 rankings are based on the criteria of resources, environment, connectivity and output, with individual rankings for each. A heavy emphasis is placed on research, with the benefits which a strong higher education system provides a nation, being at the heart of the study. If universities can attract esteemed figures to their campuses to carry out work, it can do wonders in promoting the institution as a hub for that particular field.
With a high quality of living and where education is a high priority for the government, Singapore continues to attract more and more students from abroad. Find out more about why Singapore is regarded so highly.
Browse our site to find out how you can study in Singapore, including scholarship information and reviews by those who have studied there.


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text:
Rapid reaction forces are brigade-strength forces with high combat readiness, immediate response speed, flexible and highly mobile that are able to operate independently, within Jordanian forces, or with friendly and allied forces to defend Jordanian national security within the borders of the Kingdom of Jordan or Outside in all circumstances at the time and place and in accordance with the orders of the General Command of the Armed Forces.

The most important distinguishing features of the rapid intervention forces are the manpower, weapons and equipment appropriate to this brigade, the possibility of early and timely intervention, and the professional training received by the brigade.

History
The brigade was formed on August 1, 2014 as the rapid reaction force (Desert Hawk), then became on 5 November 2017 Rapid reaction Brigade and on June 25, 2018 was renamed under the banner of rapid intervention / high-readiness brigade, which is subordinate to Directorate of joint military operations. In 2017, the units from deactivated 28th Royal Ranger Brigade transferred to QRF Brigade.

In November, 2018  the brigade was renamed the "Sheikh Mohammed Bin Zayed Al Nahyan Rapid Intervention/High Readiness Brigade". Naming the brigade after the UAE crown prince was an "expression of the deep brotherly ties" between the two countries and comes in appreciation of the role of Sheikh Mohammed and the UAE in supporting the JAF, especially in military housing projects and training schools, according to a Royal Court statement.

Mission
Jordan has created the brigade to provide a rapid-response capability against situations that may flare up rapidly, particularly along the borders, and to sustain operations for several days. The brigade is an important element in the containment of Daesh and other extremist forces, and both the US and UK have supported this initiative with training and equipment. The Joint Special Operations Command has also taken an important role in shaping the structure and tactical employment of the brigade.

Rapid mobility is a crucial element, and additional Sikorsky UH-60 Black Hawks – which have been in JSOC service for some time – have been procured from the US to allow the immediate deployment of the brigade, along with more land vehicles. Communication is another important area in which new systems are being acquired, allowing Jordan to develop a fully deployable command and control capability.
The Brigade has its own Joint Tactical Air Controllers (JTACs).

Brigade Objectives
 Direct and Indirect Action Operations Inside and Outside the Kingdom.
 Border Area Operations.
 Assist and Support King Abdullah II Special Forces Group.
 Internal Security Operations.
 Humanitarian Assistance Operations (Refugees - Civil Affairs).

Organizational structure
 Brigade Command HQ
Command Staff
 Signal Company
 Female Engagement Platoon
 105mm Mobile Artillery Company (M119 howitzer)
 Special Engineer Company
 Combat Service Support Company
 Brigade Maintenance Unit
 Medical Support Center
 61st Quick Reaction Force Battalion (Raiders)
 Attached to Southern Command
 The unit is specialized in Direct & In-direct Actions, Mountain Warfare, Advanced CSAR, Special Reconnaissance, Airborne, Air-assault & Maritime Operations.
 81st Quick Reaction Force Battalion
 Attached to Northern Command
 The unit is specialized in Direct & In-direct Actions, Jungle Warfare, Reconnaissance, Airborne, Air-assault & Maritime Operations.
 91st Quick Reaction Force Battalion
 Attached to Central Command
 The unit is specialized in Direct & In-direct Actions, Desert Warfare, Special JTAC, Airborne, Air-assault & Maritime Operations.
 Supporting Arms Virtual Trainer (SAVT) Center.
 Designed to train JTAC's, Mortar teams, the SAVT provides a fully immersive environment in which virtual aircraft come to life in a large domed building.
 Brigade Training Center

References

Special forces
Special Forces
Protective security units
Military units and formations established in 2014

redpajama_set_name: RedPajamaWikipedia


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text:
package nl.drewez.gyrosnek.Views;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

import nl.drewez.gyrosnek.R;

public class StartActivity extends AppCompatActivity {

    //field for the view
    private View mContentView;

    /**
     * Sets certain aspects of the instance
     *
     * @param savedInstanceState retrieves the state of the instance
     * @return void
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_start);

        mContentView = findViewById(R.id.fullscreen_content);

        mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE
                | View.SYSTEM_UI_FLAG_FULLSCREEN
                | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

        //Hides the actionbar
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.hide();
        }

        //Stores the StartActivity this in _this
        final StartActivity _this = this;

        //delays the runnable, which allows to show the bootscreen
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent intent = new Intent(_this, GameActivity.class);
                startActivity(intent);
            }
        }, 2000);

    }
}

redpajama_set_name: RedPajamaGithub


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text:
Home Defence
"China has proven that it can't work with us honestly."
in Defence
Washington: The US State Department in a report claims that China conducted low-yield underground nuclear tests. Though the report does not give any concrete proofs, it does provide circumstantial evidence pointing that the communist country might have conducted the test. The Chinese may even have conducted the tests while it was trying to contain the spread of COVID-19.
The report says, "China's possible preparation to operate its Lop Nur test site year-round, its use of explosive containment chambers, extensive excavation activities at Lop Nur and a lack of transparency on its nuclear testing activities … raise concerns regarding its adherence to the zero yield standard."
The Lop Nur site was active throughout 2019, which gives to speculation that the Chinese were conducting tests even when a deadly virus was ravaging that country. It was only on 31 December 2019, that China reported to the World Health Organization (WHO) about an unusual pneumonia-like disease spreading in Wuhan. However, it was already late and the Chinese had to tell the world that the epidemic was out of control.
Both the US and China are signatories to the Comprehensive Test Ban Treaty (CTBT) signed in 1996 but both the nuclear nations have not ratified it yet.
Republican Senator, Tom Cotton, said, "Beijing is modernising its nuclear arsenal while the United States handcuffs itself with one-sided arms-control."
He added, "China has proven that it can't work with us honestly."
However, the Chinese Foreign Ministry spokesperson, Zhao Lijian, has refuted the US claims and dubs it irresponsible and ill-intentioned.
China has an estimated 300 nuclear weapons and refuses to indulge in talks for global arms control with the United States and Russia. The communist country claims that their nuclear stockpile is for defensive purposes only and poses no threat.
China's nuclear tests could antagonize the US leadership further. Already, the communist nation has come under severe criticism for its handling of the COVID-19 threat. The country's reluctance to initially share information about the situation of COVID-19 spread and its low transparency aided the virus to spread rapidly to every corner of the world.
Tags: chinaCTBTFEATUREDnuclear testUS
Encouraged by PM Modi's Advice, Family Digs a Deep Well during Lockdown Period, Saving ₹ 1 lakh; Goes Viral in Social Media

redpajama_set_name: RedPajamaCommonCrawl


text:
Q: Optional binding of nil literal vs. variable that is nil in Swift In Swift, why does
var x: Int? = nil
if let y: Int? = x { ... }

behave differently from
if let y: Int? = nil { ... }

My understanding of why the first case succeeds suggests that the second should as well, so I must not really be understanding.
The latter is not failing because of an invalid assignment, nor because of optional chaining; and otherwise it seems the same as the former. Why does the latter fail, and how is it different from the former. Exactly at what point, and for what reason, is the second optional binding abandoned?

A: if let y: Int? = nil { ... }

is equivalent to
if let y: Int? = nil as Int?? { ... }

is equivalent to
if let y: Optional<Int> = Optional<Optional<Int>>() { ... }

This tries to cast Optional<Optional<Int>> to Optional<Int>, and it fails because Optional<Optional<Int>>() does not contains Optional<Int> value.

Oneliner equivalent to
var x: Int? = nil
if let y: Int? = x { ... }

is
if let y: Int? = nil as Int? { ... }

ADDED:
As I answered on What does Swift's optional binding do to the type it's arguments?.
if let y: Int? = nil as Int? { ... }

is compiled as:
if let y:Int? = nil as Int? as Int?? { ... }

Here, we should mind that nil as Int? as Int?? is not equivalent to nil as Int??.
The former is Optional(Optional<Int>()), but the latter is Optional<Optional<Int>>().
With this in mind, I think,

So the optional binding in my first example (does indeed) "check inside" and finds nil, which is perfectly valid to assign to Int?; but my second checks and finds Optional(nil), which can't be assigned to Int?

The first example "check inside" of Int?? and just finds Optional<Int>() value that is Int? type which can be assigned to Int?; But the second one finds nothing to be assigned and fails.

A: let declares a constant that is set at initialization time. Using the let in an if statement with an Optional<T>, then it binds the initialized constant the the result of a failable initializer, not literally to nil or another literal.
The compiler allowed you to use nil directly, instead of '4' for e.g., since nil has use/context outside of Optional; however, this literal use of nil bypasses the initializer, so there is no result to bind to. In the cases of 4 or Int(4), the compiler knows something is awry and won't compile.
Review the following example:
var xnil: Int? = nil
var x4: Int? = Int?(4)
var xnone: Int? = Int?()
var xdefault: Int? = Int()

if let znil: Int? = nil {
    println("znil:\(znil)")
} else {
    println("znil: did not bind")
}

if let zn0: Int? = Int?(nilLiteral: ()) {
    println("zn0:\(zn0)")
}

if let zn1: Int? = Int?(()) {
    println("zn1:\(zn1)")
}

if let zn2: Int? = Int?() {
    println("zn1:\(zn2)")
}

if let zn3: Int? = Int?.None {
    println("zn3:\(zn3)")
}

if Int?.None == nil {
    println(".None == nil")
}

if let zo0: Int? = Int?(4) {
    println("zo0:\(zo0)")
}

//nil-test.swift:36:20: error: bound value in a conditional binding must be of Optional type
//if let zo1: Int? = 4 {
//                   ^
/*
if let zo1: Int? = 4 {
    println("zo1:\(zo1)")
}
*/

//nil-test.swift:51:20: error: bound value in a conditional binding must be of Optional type
//if let zo2: Int? = Int(4) {
//                   ^
/*
if let zo2: Int? = Int(4) {
    println("zo2:\(zo2)")
}
*/

if let zxn0: Int? = xnil {
    println("zxn0:\(zxn0)")
}

if let zxn1: Int? = x4 {
    println("zxn1:\(zxn1)")
}

if let zxn2: Int? = xnone {
    println("zxn2:\(zxn2)")
}

if let zxn3: Int? = xdefault {
    println("zxn3:\(zxn3)")
}

... it outputs:
znil: did not bind
zn0:nil
zn1:nil
zn1:nil
zn3:nil
.None == nil
zo0:Optional(4)
zxn0:nil
zxn1:Optional(4)
zxn2:nil
zxn3:Optional(0)

UPDATE: Explaining the difference between Type and Type?.
See this example:
if let a: Int? = nil {
    println("a: \(a)")
} else {
    println("a: let fail")
}

if let b1: Int? = Int?(nilLiteral: ()) { // same as Int?() -- added nilLiteral to be explicit here
    println("b1: \(b1)")
}

if let b2: Int? = Int?(44) {
    println("b2: \(b2); b2!: \(b2!)")
}

if let c1: Int = Int?(44) {
    println("c1: \(c1)")
}

if let c2: Int = Int?(nilLiteral: ()) { // Again, Int?() would suffice
    println("c2: \(c2)")
} else {
    println("c2: let fail")
}

/// NOTE: these 'd' examples represents a more idiomatic form
var m: Int? = Int?()
if let d1 = m {
    println("d1: \(d1)")
} else {
    println("d1: let fail")
}

m = Int?(444)
if let d2 = m {
    println("d2: \(d2)")
} else {
    println("d2: let fail")
}

m = Int?()
println("m?: \(m?)")
if let whyDoThis: Int? = m {
    println("whyDoThis?: \(whyDoThis?) -- the `let` is telling you nothing about 'm!'")
}

... it outputs:
a: let fail
b1: nil
b2: Optional(44); b2!: 44
c1: 44
c2: let fail
d1: let fail
d2: 444
m?: nil
whyDoThis?: nil -- the `let` is telling you nothing about 'm!'!

... so, ask yourself:

*

*Why did a fail, and b1 bind successfully, even though it contains a nil value?

*Why does if let whyDoThis ... succeed when m clearly contains a nil value at that point?

*And what does the value of whyDoThis? tell you about m!?

In the end, idiomatic Swift pseudocode, for this case, should look like the following:
var maybeT: MyType?
// ... maybe set maybeT to a MyType, maybe not
if let reallyHaveT = maybeT {
  // reallyHaveT has a bound value of type MyType
}

UPDATE 2: Okay, let's look at types ...
See the following example:
var none: Int? = Int?()
var one: Int? = Int?(1)

println("Int()   type: \(_stdlib_getTypeName(Int())), val: \(Int())")
println("Int(1)  type: \(_stdlib_getTypeName(Int(1))), val: \(Int(1))")
println("Int?()  type: \(_stdlib_getTypeName(Int?())), val: \(Int?())")
println("Int?(1) type: \(_stdlib_getTypeName(Int?(1))), val: \(Int?(1))")
println("none    type: \(_stdlib_getTypeName(none)), val: \(none)")
println("one     type: \(_stdlib_getTypeName(one)), val: \(one)")

if let x = none {
    println("`let x = none`       x type: \(_stdlib_getTypeName(x))")
} else {
    println("`let x = none`       FAIL")
}
if let x: Int = none {
    println("`let x: Int = none`  x type: \(_stdlib_getTypeName(x))")
} else {
    println("`let x: Int = none`  FAIL")
}
if let x: Int? = none {
    println("`let x: Int? = none` x type: \(_stdlib_getTypeName(x))")
}

if let y = one {
    println("`let y = one`        y type: \(_stdlib_getTypeName(y))")
}
if let y: Int = one {
    println("`let y: Int = one`   y type: \(_stdlib_getTypeName(y))")
}
if let y: Int? = one {
    println("`let y: Int? = one`  y type: \(_stdlib_getTypeName(y))")
}

if let z: Int? = nil {
    println("`let z: Int? = nil`  z type: \(_stdlib_getTypeName(z))")
} else {
    println("`let z: Int? = nil`  FAIL")
}
if let z = Int?() {
    println("`let z = Int?()`     z type: \(_stdlib_getTypeName(z))")
} else {
    println("`let z = Int?()`     FAIL")
}

... it outputs:
Int()   type: _TtSi, val: 0
Int(1)  type: _TtSi, val: 1
Int?()  type: _TtSq, val: nil
Int?(1) type: _TtSq, val: Optional(1)
none    type: _TtSq, val: nil
one     type: _TtSq, val: Optional(1)
`let x = none`       FAIL
`let x: Int = none`  FAIL
`let x: Int? = none` x type: _TtSq
`let y = one`        y type: _TtSi
`let y: Int = one`   y type: _TtSi
`let y: Int? = one`  y type: _TtSq
`let z: Int? = nil`  FAIL
`let z = Int?()`     FAIL

The point I want to stress is that you are effectively invoking let z = Int?() when you write let z: Int? = nil. This will fail to bind when used in an if statement. Always.

A: if let is used to get rid of the optional. If you want to see when the variable is nil use
if let y: Int = x {
// This occurs if you are able to give a non-nil value to the variable
} else {
// This occurs if the optional x is nil
}

as far as I know you shouldn't try declare the type of a constant in the if let statement to be optional because that kind of defeats the purpose of the if let statement.

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